CN106216888A - A kind of scaling powder and preparation method thereof, pole group's welding method and lead-acid accumulator - Google Patents
A kind of scaling powder and preparation method thereof, pole group's welding method and lead-acid accumulator Download PDFInfo
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- CN106216888A CN106216888A CN201610591091.XA CN201610591091A CN106216888A CN 106216888 A CN106216888 A CN 106216888A CN 201610591091 A CN201610591091 A CN 201610591091A CN 106216888 A CN106216888 A CN 106216888A
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- scaling powder
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- 239000000843 powder Substances 0.000 title claims abstract description 105
- 238000003466 welding Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000002253 acid Substances 0.000 title claims description 40
- 238000002360 preparation method Methods 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 230000003213 activating effect Effects 0.000 claims abstract description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- DVHXJLRODLTJOD-UHFFFAOYSA-N aminoazanium;bromide Chemical compound Br.NN DVHXJLRODLTJOD-UHFFFAOYSA-N 0.000 claims abstract description 9
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 19
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 5
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 239000001999 grid alloy Substances 0.000 claims description 3
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical group CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 33
- 229910045601 alloy Inorganic materials 0.000 abstract description 25
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 239000007790 solid phase Substances 0.000 abstract description 5
- 230000009881 electrostatic interaction Effects 0.000 abstract description 4
- 239000003063 flame retardant Substances 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002341 toxic gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- -1 alcohol ether analog Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000002142 lead-calcium alloy Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
- H01M50/541—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges for lead-acid accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a kind of scaling powder, including 15～20 weight portions phosphoric acid, 5～10 weight portion hydrazine bromide, 5～10 weight portion activating agent, 5～8 weight portion sodium hypophosphite, 35～40 weight portion auxiliary agent and the water of 20～30 weight portions.The scaling powder that the present invention provides is in the group's welding process of pole, the cast welding of many alloy systems can be applicable to, in the selection of formula, material properties and the process attribute of the multiple alloy of grid self of accumulator plate are taken into full account, emphasis considers the alloy melting point of the pole plate especially lug at grid top, lug electrostatic interaction, the apparent oxide layer of lug (or corrosion layer), solid phase reduces with the surface tension of liquid phase, biphase scaling powder, the welding factor such as fire retardant, the pole plate welding that can promote multiple alloy material plastidome reaches the cast welding quality of requirement, and energy consumption and pollution can also be reduced, and the cost of scaling powder.
Description
Technical field
The invention belongs to accumulator manufacturing technology field, particularly relate to a kind of scaling powder and preparation method thereof, pole group welding
Method and lead-acid accumulator.
Background technology
Lead-acid accumulator is that a kind of electrode is mainly made up of lead and oxide thereof, and electrolyte is the accumulator of sulfuric acid solution,
Under discharge condition, positive pole is mainly composed of Lead oxide brown, and negative pole is mainly composed of lead；Under charged state, the main one-tenth of both positive and negative polarity
Divide and be lead sulfate.Lead-acid accumulator battery mainly by tubular positive plate, negative plate, electrolyte, dividing plate, battery case, battery cover,
Pole, fill cap etc. form, and can be divided into vented cell and maintenance-free lead-acid battery.
Along with the upgrading of accumulator manufacturing technology, the lead-acid accumulator main force develops into plumbic acid maintenance-free accumulator, makes
Without adding electrolyte or distilled water in.Produce oxygen mainly by positive pole and can reach Oxygen cycle in negative pole absorption, can prevent
Sealing divides minimizing, thus the consumption of electrolyte is the least, substantially need not supplement distilled water within service life.Non-maintaining lead
Acid accumulator range of application is wider, including uninterrupted power source, electrical vehicular power, battery of electric bicycle etc..
Pole plate is the important composition parts of maintenance-free lead accumulator, and grid is the ingredient of pole plate, on grid
It solidify to form pole plate after coating lead plaster；Lug is then the top current output interface of grid, is used for conducting electricity, lug (current-carrying part)
The most welded or cast welding processing is molten into one, forms bus-bar (also referred to as collector)；Pole group refers to by positive and negative difference
The monomer group of the positive/negative plate midfeather AGM dividing plate composition of polarity.
In the preparation technology of maintenance-free lead accumulator, current pole group's welding method is divided into and freezing and cast welding.Freeze and be
With the fuel gas such as coal gas or acetylene as fuel, carry out flame fusing with oxygen as combustion adjuvant, make polar plate of lead acid storage battery
Lug (current-carrying part) be molten into one, formed bus-bar (also referred to as collector)；Another kind of welding method is cast welding, is to cast
Welding mould is installed in automatic cast welding machine, is then filled by the metal of high temperature melting and is added in weld mold, is then helped by the libation at an ancient wedding ceremony
The lug of solder flux is inserted in weld mold, utilizes the high temperature of lead liquid and the promotion welding function of scaling powder, makes lug surface element
The alloy divided fuses into one with lead liquid alloy, forms a fusion completely after cooling, reaches the purpose of welding.Scaling powder
It is to help and to promote welding process in welding procedure, there is protective effect, the chemical substance of prevention oxidation reaction simultaneously,
Accumulator field scaling powder is liquid condition.Mainly there is " removing apparent oxide, corrosion layer ", " reduce and be soldered material solid phase
Surface tension with liquid phase " pivotal role.
At present, slab lattice alloy of lead-acid battery is broadly divided into two kinds, and one is Pb-Sb-Cd alloy, and another kind is lead-calcium alloy
(actually lead calcium stannum multicomponent alloy, industry is commonly referred to as lead-calcium alloy).Lead-calcium alloy fusing point is of a relatively high (relatively among these
Exceed about 15～20 DEG C), the poorest on processing property, but this alloy is a kind of cleaning alloy, is that battery industry is tried hard to recommend greatly
Wide a kind of alloy, but most enterprise produces the product of two kinds of alloy systems simultaneously, bring a lot of inconvenience to welding production.
Therefore, a kind of scaling powder with the more preferable suitability how is found, it is possible to for the alloy body that row is commonly used in the trade
System, all has and preferably helps weldering effect, it has also become each lead-acid storage battery production enterprise problem demanding prompt solution.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of scaling powder and preparation method thereof, pole group weldering
Connecing method and lead-acid accumulator, the scaling powder that the present invention provides is in the group's welding process of pole, it is possible to be applicable to many alloy systems
Cast welding so that the pole plate welding of multiple alloy material plastidome reaches the cast welding quality of requirement, and can also reduce energy consumption and pollution,
And the cost of scaling powder.
The invention provides a kind of scaling powder, including:
Preferably, described activating agent includes TritonX and/or glycerol；
Described auxiliary agent is volatile aids；
Described water is deionized water.
Preferably, described volatile aids include ethanol, ether, isopropanol, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether, third
One or more in glycol n-butyl ether, butyl, benzene, toluene and dimethylbenzene.
The invention provides the preparation method of a kind of scaling powder, comprise the following steps:
1), after water, auxiliary agent and phosphoric acid being mixed, mixed liquor is obtained；
2) in the mixed liquor that above-mentioned steps obtains, add hydrazine bromide, activating agent and sodium hypophosphite, again mix simultaneously,
To scaling powder.
Preferably, described in be mixed into stirring mixing, the time of described mixing is 5～10 minutes；
Described being again mixed into stirs mixing, and the described time again mixed is 5～10 minutes.
The invention provides the welding method of a kind of pole group, comprise the following steps:
A) by helping prepared by the scaling powder described in technique scheme any one or technique scheme any one
Solder flux, is compounded in the lug surface of described pole group, obtains pole group to be welded；
B) melted metal liquid is compounded in again the lug surface of the pole group to be welded that above-mentioned steps obtains, obtains pole
Group.
Preferably, the composition of described metal liquid is identical with the composition of the electrode plate grid alloy of described pole group；
It is 0.5%～3% that described scaling powder accounts for the mass values of described metal liquid.
Preferably, the temperature of described melted metal liquid is 480～495 DEG C；
The described again compound time is 35～45 seconds；
Described again compound after, also include that cooling processes step.
Preferably, described step A) particularly as follows:
A1) the lug surface of pole group is placed in it is adsorbed with the adsorption material of the scaling powder described in Claims 1 to 4 any one
In material, obtain semi-finished product；
A2) semi-finished product that above-mentioned steps obtains are placed in adsorbing material, remove the scaling powder of lug surface excess, obtain
Pole group to be welded；
Described step A2) in, described in time of being placed in be 3～10 seconds.
Present invention also offers a kind of lead-acid accumulator, the pole group welded including technique scheme any one.
The invention provides a kind of scaling powder, including 15～20 weight portions phosphoric acid, 5～10 weight portion hydrazine bromide, 5～
The activating agent of 10 weight portions, 5～8 weight portion sodium hypophosphite, 35～40 weight portion auxiliary agent and the water of 20～30 weight portions.
Compared with prior art, the present invention is directed in existing storage battery production, pole plate alloy system is not unique, causes in actual production
Unstable and the ropy problem of welding procedure, develops the scaling powder being applicable to the cast welding of many alloy systems voluntarily.The present invention
The scaling powder provided is in the group's welding process of pole, it is possible to is applicable to the cast welding of many alloy systems, in the selection of formula, fully examines
Having considered material properties and the process attribute of the multiple alloy of grid self of accumulator plate, emphasis considers pole plate especially grid
The surface of the alloy melting point of the lug at top, lug electrostatic interaction, the apparent oxide layer of lug (or corrosion layer), solid phase and liquid phase is opened
The welding factor such as power reduction, biphase scaling powder, fire retardant, it is possible to the pole plate welding promoting multiple alloy material plastidome reaches requirement
Cast welding quality, and energy consumption and pollution, and the cost of scaling powder can also be reduced.Test result indicate that, the present invention provides
The temperature that scaling powder needs when welding declines 20～40 DEG C than when using general scaling powder, thus welding energy consumption decreases；
Scaling powder volatility is weak, operates with link safety.
Accompanying drawing explanation
The schematic diagram of the pole group welding that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
In order to be further appreciated by the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but
Should be appreciated that these descriptions are intended merely to further illustrate the features and advantages of the present invention rather than to invention claim
Limit.
The all raw materials of the present invention, are not particularly limited its source, that commercially buy or according to people in the art
Prepared by the conventional method known to Yuan.
The all raw materials of the present invention, are not particularly limited its purity, present invention preferably employs analytical pure or lead-acid accumulator
The conventional purity that field uses.
The invention provides a kind of scaling powder, including:
The definition of described scaling powder is not particularly limited by the present invention, with scaling powder well known to those skilled in the art i.e.
Can, scaling powder of the present invention is preferably pole group or the pole plate weldering of lead-acid accumulator scaling powder, more preferably lead-acid accumulator
Connect the pole group welding soldering flux with many alloy systems of scaling powder, specially lead-acid accumulator.
In scaling powder of the present invention, the content of described phosphoric acid by weight, preferably 15～20 weight portions, more preferably
It is 16～19 weight portions, most preferably 17～18 weight portions；The content of described hydrazine bromide by weight, preferably 5～10 weights
Amount part, more preferably 6～9 weight portions, most preferably 7～8 weight portions；The content of described activating agent by weight, preferably 5
～10 weight portions, more preferably 6～9 weight portions, most preferably 7～8 weight portions；The content of described sodium hypophosphite is by weight
Number, preferably 5～8 weight portions, more preferably 5.5～7.5 weight portions, most preferably 6～8 weight portions；The content of described auxiliary agent
By weight, preferably 35～40 weight portions, more preferably 36～39 weight portions, most preferably 37～38 weight portions；Described
The content of water by weight, preferably 20～30 weight portions, more preferably 22～28 weight portions, more preferably 23～27 weight
Part, most preferably 24～26 weight portions.
Described activating agent is not particularly limited by the present invention, with the work for welding field well known to those skilled in the art
Property agent, those skilled in the art can select according to practical condition, product requirement and prescription and adjust,
Activating agent of the present invention preferably includes TritonX and/or glycerol, more preferably TritonX or glycerol.The present invention is to described auxiliary agent
Being not particularly limited, with the auxiliary agent for welding field well known to those skilled in the art, those skilled in the art are permissible
Selecting according to practical condition, product requirement and prescription and adjust, auxiliary agent of the present invention is preferably volatility
Auxiliary agent, the most preferably ethanol, ether, isopropanol, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether, propylene glycol n-butyl ether, diethyl two
One or more in alcohol butyl ether, benzene, toluene and dimethylbenzene, or be ethanol, ether, isopropanol, ethylene glycol monobutyl ether, second two
Alcohol methyl ether, propylene glycol n-butyl ether, butyl, benzene, toluene or dimethylbenzene；The present invention is the safe and practical of raising scaling powder
Property, described volatile aids is preferably alcohol ether analog assistant, the most preferably alcohol, ether, isopropanol, ethylene glycol monobutyl ether, second
Glycol methyl ether, propylene glycol n-butyl ether or butyl, or be alcohol, ether, isopropanol, ethylene glycol monomethyl ether or propylene glycol just
Butyl ether, most preferably ethanol.
The invention provides the preparation method of a kind of scaling powder, comprise the following steps:
1), after water, auxiliary agent and phosphoric acid being mixed, mixed liquor is obtained；
2) in the mixed liquor that above-mentioned steps obtains, add hydrazine bromide, activating agent and sodium hypophosphite, again mix simultaneously,
To scaling powder.
In the above-mentioned preparation method of the present invention, the selection of described various raw materials, assembled scheme, concrete ratio and optimum principle
All consistent, at this most one by one with the selection of the raw material in aforementioned scaling powder, assembled scheme, concrete ratio and optimum principle
Repeat.
After first water, auxiliary agent and phosphoric acid are mixed by the present invention, obtain mixed liquor.
The mode of described mixing is not particularly limited by the present invention, with hybrid mode well known to those skilled in the art i.e.
Can, those skilled in the art can select according to practical condition, product requirement and prescription and adjust, the present invention
Mixing is preferably stirred in described mixing；The time of described mixing is not particularly limited by the present invention, and those skilled in the art are permissible
Selecting according to practical condition, product requirement and prescription and adjust, the time of mixing of the present invention is preferably 5
～10 minutes, more preferably 6～9 minutes, most preferably 7～8 minutes.The present invention is to the described mode again mixed the most especially
Limiting, with hybrid mode well known to those skilled in the art, those skilled in the art can be according to practical condition, product
Product require and prescription selects and adjusts, and of the present invention again mixing preferably stirs mixing；The present invention is to described
The time again mixed is not particularly limited, and those skilled in the art can be according to practical condition, product requirement and quality
Requirement selects and adjusts, and the time again mixed of the present invention is preferably 5～10 minutes, more preferably 6～9 minutes,
Most preferably 7～8 minutes.
Technique scheme of the present invention provides scaling powder and preparation method thereof, and the scaling powder that the present invention provides welds pole group
In termination process, it is possible to be applicable to the cast welding of many alloy systems, in the selection of formula, take into full account the grid of accumulator plate
The material properties of self multiple alloy and process attribute, emphasis considers the alloy of the pole plate especially lug at grid top and melts
Point, lug electrostatic interaction, the apparent oxide layer of lug (or corrosion layer), solid phase and the surface tension reduction of liquid phase, biphase scaling powder,
The welding factor such as fire retardant, it is possible to the pole plate welding promoting multiple alloy material plastidome reaches the cast welding quality of requirement, and leads to
Cross the preferred of the concrete component of scaling powder, also there is volatility weak, escape without toxic gas, operate with link and pollute safely little
Feature, scaling powder is with low cost simultaneously, and within per kilogram cost can be controlled in 20.00 yuan, and commercially available (general use) cast welding agent is the most public
Jin, at 80～150 yuan, considerably reduces production cost.
The invention provides the welding method of a kind of pole group, comprise the following steps:
A) by helping prepared by the scaling powder described in technique scheme any one or technique scheme any one
Solder flux, is compounded in the lug surface of described pole group, obtains pole group to be welded；
B) melted metal liquid is compounded in again the lug surface of the pole group to be welded that above-mentioned steps obtains, obtains pole
Group.
The present invention is first by the scaling powder described in technique scheme any one or technique scheme any one institute
The scaling powder of preparation, is compounded in the lug surface of described pole group, obtains pole group to be welded.
The definition of described pole group is not particularly limited by the present invention, with in lead-acid accumulator well known to those skilled in the art
Pole group, described pole group includes that the conventional configurations such as pole plate, lug, described pole plate include the conventional configurations such as grid.
The composition of described metal liquid is not particularly limited by the present invention, with well known to those skilled in the art for plumbic acid
The composition of the metal of accumulator, those skilled in the art can want according to practical condition, product requirement and quality
Ask and select and adjust, the composition of metal liquid of the present invention preferably with the grid alloy of described pole group's pole plate become split-phase
Same or similar, the most identical.The usage amount of described scaling powder is not particularly limited by the present invention, with those skilled in the art
Known to the usage amount of the scaling powder for lead-acid accumulator, those skilled in the art can according to practical condition,
Product requirement and prescription select and adjust, and the present invention, for improving welding quality, reduces the product in cavity in welding finished product
Raw, described scaling powder accounts for the mass values of described metal liquid and is preferably 0.5%～3%, and more preferably 1%～2.5% are optimum
Elect 1.5%～2% as.
Described being combined is had no particular limits by the present invention, with complex method well known to those skilled in the art, this
Skilled person can select according to practical condition, product requirement and prescription and adjust, of the present invention
Compound can be one or more in being coated with, spray, spray, smear, brush or dipping in, and is specifically as follows brush or dips in.The present invention couple
Described compound temperature has no particular limits, with the ordinary temperature of such technique well known to those skilled in the art, this
Skilled person can select according to practical condition, product requirement and prescription and adjust, of the present invention
Compound temperature is preferably 5～40 DEG C, more preferably 10～35 DEG C, more preferably 15～30 DEG C, most preferably 20～25 DEG C.
Described compound concrete steps are not particularly limited by the present invention, and those skilled in the art can be according to actual production
Situation, product requirement and prescription select and adjust, and the present invention is to improve the welding quality of pole group, reduces scaling powder mistake
Amount can cause lug corrosion or weld excessive situation, based on removing the excessive scaling powder of attachment on lug, only retains lug table
The principle of layer suitably scaling powder, described step A) it is particularly preferred as:
A1) the lug surface of pole group is placed in it is adsorbed with the adsorption material of the scaling powder described in Claims 1 to 4 any one
In material, obtain semi-finished product；
A2) semi-finished product that above-mentioned steps obtains are placed in adsorbing material, remove the scaling powder of lug surface excess, obtain
Pole group to be welded.
Described adsorbing material is not particularly limited by the present invention, with the absorption that production well known to those skilled in the art is conventional
Material, those skilled in the art can select according to practical condition, product requirement and prescription and adjust,
Adsorbing material of the present invention is preferably one or more in sponge, gauze and cotton, the most preferably cotton.
The present invention is to described step A1) in the time of being placed in be not particularly limited, those skilled in the art can be according to reality
The border condition of production, product requirement and prescription select and adjust.The present invention is to the described suction being adsorbed with above-mentioned scaling powder
The adsorbance of enclosure material is not particularly limited, with conventional adsorbance well known to those skilled in the art, art technology
Personnel can select according to practical condition, product requirement and prescription and adjust, and absorption of the present invention helps
The saturation of the adsorbing material of solder flux is preferably 90%～98%, more preferably 91%～97%, more preferably 92%～96%,
Most preferably 93%～95%.
Step A2 of the present invention) in adsorbing material refer to blank adsorbing material, the selection of its material and preceding adsorption
The principle of material (non-blank-white adsorbing material) is consistent.The present invention is to described step A2) in the time of being placed in be not particularly limited,
Those skilled in the art can select according to practical condition, product requirement and prescription and adjust, the present invention couple
Described step A2) in the time of being placed in be preferably 3～10 seconds, more preferably 4～9 seconds, more preferably 5～8 seconds, most preferably 6
～7 seconds.The definition of described excess is not particularly limited by the present invention, judges whether with principle well known to those skilled in the art
Measuring, those skilled in the art can select according to practical condition, product requirement and prescription and adjust, this
The scaling powder of excess has preferably the most been removed in invention by observation and micro-judgment.The present invention is permissible to the consumption of described scaling powder
Select according to the principle of above-mentioned judgement excess, it is also possible to the consumption referring in particular to described scaling powder carries out qualitative selection.
Described being again combined is had no particular limits, with complex method well known to those skilled in the art i.e. by the present invention
Can, those skilled in the art can select according to practical condition, product requirement and prescription and adjust, the present invention
Described being again combined can be one or more in being coated with, spray, spray, smear, brush or dipping in, and is specifically as follows brush or dips in.
Described again compound temperature is had no particular limits, with the temperature of such technique well known to those skilled in the art by the present invention
, those skilled in the art can select according to practical condition, product requirement and prescription and adjust, this
Temperature again compound described in bright is preferably the temperature of melted metal liquid, is specifically as follows 480～495 DEG C, or is 482
～493 DEG C, or be 480～490 DEG C, or be 483～488 DEG C.The present invention is to the described again compound time the most especially
Limiting, those skilled in the art can select according to practical condition, product requirement and prescription and adjust, this
Time again compound described in bright is preferably 35～45 seconds, more preferably 37～42 seconds, more preferably 38～41 seconds, is most preferably
39～40 seconds.
The present invention is to improve the effect of welding, preferably after being again combined, also includes that cooling processes step；The present invention couple
Detailed process and parameter that described cooling processes have no particular limits, cold with such technique well known to those skilled in the art
But process and parameter, those skilled in the art can select according to practical condition, product requirement and prescription
Selecting and adjust, cooling of the present invention processes and is preferably air cooling, air cooling or air-cooled.
Present invention also offers a kind of lead-acid accumulator, the pole group welded including technique scheme any one.
The definition of described lead-acid accumulator is not particularly limited by the present invention, stores with plumbic acid well known to those skilled in the art
Battery, the present invention is more preferably maintenance-free lead accumulator.The concrete structure of described lead-acid accumulator is not had by the present invention
Limiting especially, with the structure of lead-acid accumulator well known to those skilled in the art, those skilled in the art can be according to reality
The border condition of production, combining case and properties of product select, and lead-acid accumulator of the present invention includes pole group, pole group
Being made up of multiple pole groups, pole group includes that pole plate, pole plate include grid and lug etc..Lead-acid accumulator of the present invention includes using
The pole group of the scaling powder welding that technique scheme of the present invention provides.The preparation process of described lead-acid accumulator is not had by the present invention
Having restriction especially, with the preparation process of lead-acid accumulator well known to those skilled in the art, those skilled in the art are permissible
Select according to practical condition, product situation and properties of product.
Above-mentioned steps of the present invention provides a kind of scaling powder and preparation method thereof, pole group's welding method and lead-acid accumulator.
The scaling powder that the present invention provides is in the group's welding process of pole, it is possible to be applicable to the cast welding of many alloy systems, in the selection of formula,
Having taken into full account material properties and the process attribute of the multiple alloy of grid self of accumulator plate, emphasis considers pole plate especially
It is the alloy melting point of the lug at grid top, lug electrostatic interaction, the apparent oxide layer of lug (or corrosion layer), solid phase and liquid phase
The welding factor such as surface tension reduction, biphase scaling powder, fire retardant, it is possible to the pole plate welding promoting multiple alloy material plastidome reaches
To the cast welding quality required, and pass through the preferred of the concrete component of scaling powder, also there is volatility weak, escape without toxic gas,
Operating with link and pollute safely little feature, scaling powder is identical with existing scaling powder consumption simultaneously, but with low cost, often public
Within jin cost can be controlled in 20.00 yuan, and commercially available (general use) cast welding agent per kilogram is at 80～150 yuan, is greatly lowered
Production cost.Test result indicate that, the temperature ratio that the scaling powder that the present invention provides needs when welding uses general scaling powder
Time decline 20～40 DEG C, thus welding energy consumption decrease；Scaling powder volatility is weak, operates with link safety.
In order to further illustrate the present invention, a kind of scaling powder present invention provided below in conjunction with embodiment and preparation side thereof
Method, pole group's welding method and lead-acid accumulator are described in detail, but it is to be understood that these embodiments are with skill of the present invention
Implement under premised on art scheme, give detailed embodiment and concrete operating process, simply for further illustrating
The features and advantages of the present invention rather than limiting to the claimed invention, protection scope of the present invention is also not necessarily limited to following
Embodiment.
Embodiment 1
Concrete steps prepared by scaling powder
After the analytical pure phosphoric acid of 25KG deionized water, 40KG ethanol and 20KG successively mix and blend 10 minutes, obtain
The uniform mixed liquor of 85KG；The secondary phosphorus of the hydrazine bromide of 8KG, the glycerol of 7KG and 5KG it is slowly added into successively in the mixed liquor obtained
Acid sodium, mix and blend obtains scaling powder to uniformly in 10 minutes.
Pole group's welding step
See the schematic diagram of the pole group welding that Fig. 1, Fig. 1 provide for the embodiment of the present invention.Wherein, a is pole group to be welded, b
For becoming grade group, c is pole group's weld mold, and 1 is lug, and 2 is pole plate, and 3 is die main body, and 4 is bus-bar forming tank, and 5 for converging
Stream row
The scaling powder prepared is compound to by the way of dipping in brush lug 1 table on pole plate 2 top in pole group a to be welded
Face, is then inverted gauze upper 5 second by the pole group to be welded in Fig. 1, absorbs the scaling powder of excess, obtains pole group to be welded；With
Time be the ratio of 1.5% according to scaling powder and metal solution quality ratio, by the metal solution injector that temperature is 485 DEG C
In the bus-bar forming tank 4 of group weld mold c, being inverted after several pole groups to be welded being closed, lug 1 is snapped into pole group and welds mould
In tool bus-bar forming tank 4 within main body 3 so that melted metal liquid is combined lug 1 table being attached to pole group to be welded
Face, treats after 40 seconds that metal solution combines together with lug 1 and forms into the bus-bar 5 on grade group b top, by the finished product after cooling
Pole group is assembled in battery container according to positive and negative connected principle after departing from pole group weld mold c and adds electrolyte, change by filling
Discharge and recharge is become i.e. to can get the lead-acid accumulator of finished product.
Pole group's welding result shows, the temperature ratio that the scaling powder that the present invention provides needs when welding uses general scaling powder
Time decline 20 DEG C, welding energy consumption decrease；In welding process, scaling powder volatility is weak, escapes without toxic gas, operates with
Link is polluted safely little；And weld the cast welding quality conformance with standard of the pole plate of the multiple alloy material plastidome obtained, visually converge
Stream row's smooth in appearance flawless, cuts open bus-bar portraitlandscape, bus-bar section pore-free, the smooth nothing of bus-bar section respectively
Pore；And price is only per kilogram 18 yuan.
Embodiment 2
Concrete steps prepared by scaling powder
After the analytical pure phosphoric acid of 28KG deionized water, 38KG ethanol and 18KG successively mix and blend 8 minutes, obtain 84KG
Uniform mixed liquor；The secondary phosphorus of the hydrazine bromide of 10KG, the TritonX of 7KG and 6KG it is slowly added into successively in the mixed liquor obtained
Acid sodium, mix and blend obtains scaling powder to uniformly in 8 minutes.
Pole group's welding step
See the schematic diagram of the pole group welding that Fig. 1, Fig. 1 provide for the embodiment of the present invention.Wherein, a is pole group to be welded, b
For becoming grade group, c is pole group's weld mold, and 1 is lug, and 2 is pole plate, and 3 is die main body, and 4 is bus-bar forming tank, and 5 for converging
Stream row
The scaling powder prepared is compound to by the way of dipping in brush lug 1 table on pole plate 2 top in pole group a to be welded
Face, is then inverted cotton upper 6 second by the pole group to be welded in Fig. 1, absorbs the scaling powder of excess, obtains pole group to be welded；With
Time be the ratio of 1% according to scaling powder and metal solution quality ratio, by the metal solution injector group that temperature is 490 DEG C
In the bus-bar forming tank 4 of weld mold c, being inverted after several pole groups to be welded being closed, lug 1 is snapped into pole group's weld mold
In bus-bar forming tank 4 within main body 3 so that melted metal liquid is combined lug 1 surface being attached to pole group to be welded,
Treat after 35 seconds that metal solution combines together with lug 1 and form into the bus-bar 5 on grade group b top, by the one-tenth grade after cooling
It is assembled in battery container according to positive and negative connected principle after group disengaging pole group weld mold c and adds electrolyte, chemical conversion by filling
Discharge and recharge i.e. can get the lead-acid accumulator of finished product.
Pole group's welding result shows, the temperature ratio that the scaling powder that the present invention provides needs when welding uses general scaling powder
Time decline 20 DEG C, welding energy consumption decrease；In welding process, scaling powder volatility is weak, escapes without toxic gas, operates with
Link is polluted safely little；And weld the cast welding quality conformance with standard of the pole plate of the multiple alloy material plastidome obtained, visually converge
Stream row smooth in appearance, flawless, cut open bus-bar longitudinally or transversely with cutting knife, and discovery bus-bar section is smooth, pore-free；
And price is only per kilogram 18.4 yuan.
Embodiment 3
Concrete steps prepared by scaling powder
After the analytical pure phosphoric acid of 30KG deionized water, 39KG ethanol and 19KG successively mix and blend 9 minutes, obtain 88KG
Uniform mixed liquor；The secondary phosphorus of the hydrazine bromide of 10KG, the TritonX of 8KG and 6KG it is slowly added into successively in the mixed liquor obtained
Acid sodium, mix and blend obtains scaling powder to uniformly in 8 minutes.
Pole group's welding step
See the schematic diagram of the pole group welding that Fig. 1, Fig. 1 provide for the embodiment of the present invention.Wherein, a is pole group to be welded, b
For becoming grade group, c is pole group's weld mold, and 1 is lug, and 2 is pole plate, and 3 is die main body, and 4 is bus-bar forming tank, and 5 for converging
Stream row
The scaling powder prepared is compound to by the way of dipping in brush lug 1 table on pole plate 2 top in pole group a to be welded
Face, is then inverted sponge upper 6 second by the pole group to be welded in Fig. 1, absorbs the scaling powder of excess, obtains pole group to be welded；With
Time be the ratio of 1.3% according to scaling powder and metal solution quality ratio, by the metal solution injector that temperature is 486 DEG C
In the bus-bar forming tank 4 of group weld mold c, being inverted after several pole groups to be welded being closed, lug 1 is snapped into pole group and welds mould
In tool bus-bar forming tank 4 within main body 3 so that melted metal liquid is combined lug 1 table being attached to pole group to be welded
Face, treats after 38 seconds that metal solution combines together with lug 1 and forms into the bus-bar 5 on grade group b top, by the finished product after cooling
Pole group is assembled in battery container according to positive and negative connected principle after departing from pole group weld mold c and adds electrolyte, change by filling
Discharge and recharge is become i.e. to can get the lead-acid accumulator of finished product.
Pole group's welding result shows, the temperature ratio that the scaling powder that the present invention provides needs when welding uses general scaling powder
Time decline 20 DEG C, welding energy consumption decrease；In welding process, scaling powder volatility is weak, escapes without toxic gas, operates with
Link is polluted safely little；And weld the cast welding quality conformance with standard of the pole plate of the multiple alloy material plastidome obtained, visually converge
Stream row smooth in appearance, flawless, cut open bus-bar longitudinally or transversely with cutting knife, and discovery bus-bar section is smooth, pore-free；
And price is only per kilogram 18.6 yuan.
Above a kind of scaling powder that the present invention provides and preparation method thereof, pole group's welding method and lead-acid accumulator are carried out
Detailed introduction, principle and the embodiment of the present invention are set forth by specific case used herein, above enforcement
The explanation of example is only intended to help to understand method and the core concept thereof of the present invention, including best mode, and also makes ability
Any technical staff in territory can put into practice the present invention, including manufacturing and using any device or system, and implements any combination
Method.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention,
The present invention can also be carried out some improvement and modification, these improve and modify the protection domain also falling into the claims in the present invention
In.The scope of patent protection of the present invention is defined by the claims, and those skilled in the art can be included it is conceivable that its
His embodiment.If these other embodiments have the structural element being not different from claim character express, if or
They include the equivalent structural elements without essence difference of the character express with claim, then these other embodiments also should be wrapped
Containing within the scope of the claims.
Claims (10)
1. a scaling powder, it is characterised in that including:
Scaling powder the most according to claim 1, it is characterised in that described activating agent includes TritonX and/or glycerol；
Described auxiliary agent is volatile aids；
Described water is deionized water.
Scaling powder the most according to claim 2, it is characterised in that described volatile aids includes ethanol, ether, isopropyl
One in alcohol, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether, propylene glycol n-butyl ether, butyl, benzene, toluene and dimethylbenzene
Or it is multiple.
4. the preparation method of a scaling powder, it is characterised in that comprise the following steps:
1), after water, auxiliary agent and phosphoric acid being mixed, mixed liquor is obtained；
2) in the mixed liquor that above-mentioned steps obtains, add hydrazine bromide, activating agent and sodium hypophosphite, again mix simultaneously, helped
Solder flux.
Welding method the most according to claim 4, it is characterised in that described in be mixed into stirring mixing, described mixing time
Between be 5～10 minutes；
Described being again mixed into stirs mixing, and the described time again mixed is 5～10 minutes.
6. the welding method of a pole group, it is characterised in that comprise the following steps:
A) by the scaling powder prepared by the scaling powder described in claims 1 to 3 any one or claim 4～5 any one,
It is compounded in the lug surface of described pole group, obtains pole group to be welded；
B) melted metal liquid is compounded in again the lug surface of the pole group to be welded that above-mentioned steps obtains, obtains pole group
Group.
Welding method the most according to claim 6, it is characterised in that the composition of described metal liquid and the pole of described pole group
The composition of plate grid alloy is identical；
It is 0.5%～3% that described scaling powder accounts for the mass values of described metal liquid.
Welding method the most according to claim 6, it is characterised in that the temperature of described melted metal liquid be 480～
495℃；
The described again compound time is 35～45 seconds；
Described again compound after, also include that cooling processes step.
Welding method the most according to claim 6, it is characterised in that described step A) particularly as follows:
A1) the lug surface of pole group is placed in it is adsorbed with the adsorbing material of the scaling powder described in Claims 1 to 4 any one
In, obtain semi-finished product；
A2) semi-finished product that above-mentioned steps obtains are placed in adsorbing material, remove the scaling powder of lug surface excess, obtain to be welded
Meet pole group；
Described step A2) in, described in time of being placed in be 3～10 seconds.
10. a lead-acid accumulator, it is characterised in that include the pole group that claim 6～9 any one is welded.
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