CN1386610A - Solid wire for welding - Google Patents
Solid wire for welding Download PDFInfo
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- CN1386610A CN1386610A CN02120323A CN02120323A CN1386610A CN 1386610 A CN1386610 A CN 1386610A CN 02120323 A CN02120323 A CN 02120323A CN 02120323 A CN02120323 A CN 02120323A CN 1386610 A CN1386610 A CN 1386610A
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- Prior art keywords
- welding
- solid wire
- electric connection
- lead
- quality
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- 239000007787 solid Substances 0.000 title claims abstract description 65
- 238000003466 welding Methods 0.000 title claims abstract description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010439 graphite Substances 0.000 claims abstract description 28
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 28
- 238000007747 plating Methods 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 12
- 230000003647 oxidation Effects 0.000 claims description 57
- 238000007254 oxidation reaction Methods 0.000 claims description 57
- 239000003921 oil Substances 0.000 claims description 10
- 235000019198 oils Nutrition 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010775 animal oil Substances 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 3
- 239000008158 vegetable oil Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910052961 molybdenite Inorganic materials 0.000 abstract 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 21
- 229910052802 copper Inorganic materials 0.000 description 21
- 238000000034 method Methods 0.000 description 20
- 238000005491 wire drawing Methods 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000005406 washing Methods 0.000 description 12
- 239000004519 grease Substances 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 230000004927 fusion Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000005554 pickling Methods 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 150000002506 iron compounds Chemical class 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052714 tellurium Inorganic materials 0.000 description 4
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Natural products OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- SXGROPYLQJYUST-UHFFFAOYSA-N iron(2+);selenium(2-) Chemical compound [Fe+2].[Se-2] SXGROPYLQJYUST-UHFFFAOYSA-N 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- -1 sulphur compound Chemical class 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 229910052798 chalcogen Inorganic materials 0.000 description 1
- 150000001787 chalcogens Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012207 quantitative assay Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229940065287 selenium compound Drugs 0.000 description 1
- 150000003343 selenium compounds Chemical class 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003498 tellurium compounds Chemical class 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/12—Lifting platforms for vehicles or motorcycles or similar lifting apparatus
- B66F2700/123—Details concerning the support members or devices not related to the lifting itself
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to a solid wire for welding which is characterized in that oxide scale with 0.002-0.3 mg per 100 mm<2> is formed on the wire surface, at least one kind selected from a group of MoS2 , WS2 and graphite whose particle size is 0.1-10 um is coated on the surface of the wire in the amount of 0.01-2 g per 10 kg wire, and plating is not applied. The invention is capable of decreasing the load on the environment suppressing the wear of a current supply tip in welding, and improving the weldability, current supply property and rust prevention of the wire and even under the severe welding environment condition.
Description
Technical field
The present invention relates to not impose the copper plating on the surface, be applicable to the solid wire for welding (welding solid wire) of sealing gland arc welding, particularly purpose is to reduce the solid wire for welding of carrying capacity of environment.
Background technology
In the prior art, for the arc welding solid wire, there is the lead that does not carry out the copper plating on the surface.If use these solid wires that do not impose the copper plating from the teeth outwards to weld,, give the electric connection noticeable wear when welding though do not produce steel cuttings.
Therefore, use the arc welding solid wire that imposes the copper plating on the surface recently.When using these leads that impose the copper plating to weld, the wearing and tearing of giving electric connection in the time of can suppressing to weld, the while can be guaranteed the resistance to rust of lead.
In addition, as the method for the weldability that improves this lead, energising property, rust-preventing characteristic, the known technology (spy opens clear 55-141395 and the clear 55-128395 of Te Kai) that on conductive line surfaces, applies the mixture of sulphur, molybdenum bisuphide and graphite.
But, on the surface of arc welding, impose in the operation of copper plating with solid wire, owing to consume a large amount of acid solutions, alkaline solution and washings etc., thereby exist the very big such problem of carrying capacity of environment.Like this, if existing lead with copper plating is omitted former line pickling to reduce carrying capacity of environment, the adaptation variation of copper plating can take place then, the copper plating is peeled off from lead, fills up the unfavorable condition of spring lining inside.Therefore, must carry out pickling process, not allow the oxidation scale to remain on the surface of lead existing copper plating lead.
And, even the technology of sulphur, molybdenum bisuphide and graphite mixture that will apply on conductive line surfaces is used for the solid wire do not electroplated merely, though can reduce the wear extent of some joints really, but use welding robot in recent years, carry out in long-time continuous under the very strict welding surroundings condition of welding procedure of high electric current, for weldability, energising property and the rust-preventing characteristic that improves lead, may not be abundant.
Summary of the invention
The present invention proposes in view of these problems, its purpose be to provide a kind of when suppressing welding to the load that reduces in the electric connection wearing and tearing environment, even under the welding surroundings condition of strictness, also can improve the solid wire for welding of weldability, energising property and the rust-preventing characteristic of lead.
Solid wire for welding of the present invention is characterized in that, every 100mm
2Conductive line surfaces forms 0.002 to 0.3mg oxidation scale, and the amount coating particle diameter with every 10kg lead 0.01～2g on conductive line surfaces is the MoS that is selected from of 0.1～10 μ m
2, WS
2With more than one material of graphite, do not impose the copper plating.
In the present invention, on conductive line surfaces, an amount of oxidation scale forms from the teeth outwards, and therefore, the fusion of oxidation scale is solidified at the contact of giving electric connection when giving the contact of electric connection.Therefore, cover contact, can further suppress its wearing and tearing to electric connection with the overlay film of iron oxide.
In this solid wire for welding, preferably apply at least a grease in vegetable oil, animal oil, mineral oil and the artificial oil of being selected from of every 10kg lead 0.2～2.0g from the teeth outwards.Owing to having reduced and, therefore can further having reduced wearing and tearing to electric connection to the friction between the electric connection.
In addition, it consists of and contains for example C:0.01～0.12 quality %, Si:0.2～1.2 quality %, Mn:0.5～2.5 quality %, P:0.001～0.03 quality % and S:0.001～0.03 quality %.
Can also contain Ti and Zr with the amount that adds up to 0.03～0.30 quality %.The Mo that further can contain 0.01～0.60 quality %.
Description of drawings
Fig. 1 is the figure that expression overlay film of the present invention forms state, (a) is the profile that the position relation of electric connection and solid wire is given in expression, (b) is the enlarged drawing of the profile key component shown in (a).
Fig. 2 is the schematic diagram of expression oxidation scale existence.
Wherein, 1: overlay film, 2: solid wire, 3: give electric connection, 11: solid wire, 12: the oxidation scale.
The specific embodiment
Present inventors are in order to solve above-mentioned problem, carried out concentrated research, found that in the not plating solid wire that does not impose copper plating from the teeth outwards,, on the surface of the solid wire of this residual oxidation scale, apply an amount of MoS simultaneously by residual oxidation scale on the surface of lead
2, WS
2And graphite, the wearing and tearing of giving electric connection in the time of can suppressing to weld thus.At this moment,, also can omit the pickling process of former line, reduce the carrying capacity of environment in the manufacturing process if as the engagement scale after the use hot rolling of oxidation scale source.
Formed from the teeth outwards in the solid wire of oxidation scale, the mechanism of the wearing and tearing of giving electric connection when reducing welding thinks as described below.
For example, be 280 to 300A if make welding current, the employing diameter is that the solid wire of 1.2mm welds, and then the contact with giving the electric connection front end of solid wire is under the state of fusion, and electric current is by between them.At this moment, impose the copper plating the prior art if resemble on the surface of solid wire, then fusion is taking place with the contact place that gives the electric connection front end in plated copper film.Then, fill up melting loss from the molten copper of plated copper film to the electric connection front edge contact.As a result, adopt the existing solid wire that imposes the copper plating, can suppress wearing and tearing to electric connection.Relative therewith, adopt the existing solid wire that does not impose the copper plating, by the oxidation scale that produces on the plain line of leads such as pickling, can remove major part, there is not the melting loss of filling up to electric connection front edge contact place on the conductive line surfaces, therefore, becomes very for the wearing and tearing of electric connection more.
On the other hand, as described herein,, when forming an amount of oxidation scale from the teeth outwards, filled up by the overlay film of the iron oxide that forms by the oxidation scale to the melting loss on the electric connection even under the situation that does not impose the copper plating.Even the filling up on the conductive line surfaces of this melting loss form example of the present invention with MoS
2, WS
2During for the sulphur compound, selenium compound of representative or tellurium compound,, play a role too by being the overlay film of main component with iron sulfide, ferrous selenide or tellurium iron.
Fig. 1 is the figure that expression overlay film of the present invention forms state, (a) is the profile that the position relation of electric connection and solid wire is given in expression, (b) is the key position enlarged drawing of the profile of expression in (a).As everyone knows, oxygen, sulphur, selenium and the tellurium that belongs to the chalcogen of 6B family in the periodic table can reduce the surface tension of fusing point and the molten iron and the molten iron compound of iron and iron compound.Therefore, the oxidation scale fusion under lower temperature that is forming on the surface of solid wire 2.Then, the iron compounds such as iron oxide, iron sulfide, ferrous selenide and tellurium iron of surface tension reduction optionally cover the contact formation overlay film 1 to electric connection 3 front ends.As a result, prevented to give electric connection 3 to contact with the direct of surface of solid wire 2.In addition, by having covered the overlay film 1 of giving the iron compound of electric connection 3 front edge contacts, between to electric connection 3 and solid wire 2, pass through electric current.Like this, even the contact fusion is also filled up for the melting loss of electric connection.Wherein, because selenium and tellurium toxicity are big, therefore, if the security when considering welding should be controlled its use.
Fig. 2 is the schematic diagram of expression oxidation scale existence.Form the method for oxidation scale 12 on the surface of solid wire for welding 11, for example increase the method for the oxygen on lead 11 surfaces, be not particularly limited.Wherein, consider, preferably when making the plain line of lead, have a mind to the residual oxidation scale that forms by autoxidation in its surface, when forming final product diameter, evenly remain in the method in the recess that exists on the plain line of the lead surface from manufacturing cost.As in the plain line of lead, having a mind to the method for residual oxidation scale, for example, can be when the plain line of pickling lead, do not remove whole oxidation scales, residual a part of oxidation scale also can use mechanical descaling only to remove the oxidation scale on top layer, and the scale of having a mind to residual engagement.Think that at this moment scale is sneaked in the wire drawing lubricant in wire-drawing process, increased the wearing and tearing of wire drawing drawing-die, wire drawing still, revolving roll etc.Therefore, after mechanical descaling, wish that the scale that adheres on the wire surface adopts mechanical lapping equipment and/or water under high pressure washing etc. to remove.Mechanical descaling can be simple bending, also can apply agley and reverse.The easiness that adopts mechanical descaling to peel off scale can be adjusted by the cooling velocity in the hot-rolled process of adjusting former line.Specifically, by the cooling velocity after the reduction hot rolling, the thickness thickening of scale becomes and peels off easily, and the scale residual quantity reduces.Otherwise, if increase cooling velocity, then scale attenuation, becoming is difficult to peel off.In addition, by adjusting the section reduction rate in the hot rolling, can adjust the amount of engagement scale.By adjusting scale amount residual in the former line, can adjust the amount of oxidation scale in the product diameter.In addition, also can remove whole oxidation scales of the plain line of lead fully, have a mind to form the oxidation scale when making the Wire Drawing of product diameter, also can after Wire Drawing, apply the oxidation scale to the product diameter in being used to then by pickling.And, also can be by in oxidative environment, (low temperature drying is handled, and carries out wire drawing in the time of baking) to the goods diameter, thereby forms the oxidation scale in process annealing.In addition, the valence mumber of iron can be in 1 valency, divalent or 3 valencys any one in the oxidation scale.In addition, recess is made vertical wrinkle on its surface and is formed when the plain line of hot rolling lead, and for example, the condition during by the plain line of controlled rolling lead can be adjusted the amount and the shape of recess.
In addition, additional MoS on the surface of solid wire
2, WS
2There is no particular limitation with the method for graphite, for example, can during to the goods diameter, imbed MoS on the surface of the plain line of lead in wire drawing
2, WS
2And graphite, also can after forming the goods diameter, apply these MoS from the teeth outwards
2, WS
2And graphite.
And, by improving the solid wire smoothness of the surface, can further reduce wearing and tearing to electric connection.If the solid wire smoothness of the surface is poor, by when giving the contact of electric connection, it changes by speed, and the melting loss of electric connection takes place to give easily.As countermeasure, for example, by an amount of grease of coating on the surface of solid wire, thereby the slickness of raising solid wire can further reduce the wear extent to electric connection.
Below, solid wire for welding of the present invention is illustrated in greater detail.At first, the numerical definiteness reason relevant with solid wire for welding described.The amount of the oxidation scale on surface: every 100mm
2Lead is 0.002～0.3mg
If every 100mm
2Therefore the quantity not sufficient 0.002mg of the oxidation scale on solid wire surface then can not, can't suppress the wearing and tearing to electric connection at the overlay film of the contact formation q.s of giving electric connection.On the other hand, if every 100mm
2The amount of oxidation scale surpass 0.3mg, then solid wire increases with giving the resistance that electrically contacts between the electric connection, thereby gives the temperature rising of electric connection, has promoted its wearing and tearing.Therefore, the amount of oxidation scale is every 100mm
2Solid wire is 0.002～0.3mg.
The amount of the oxidation scale of lead outer surface can be measured by the quality of relatively removing deoxidation scale solid wire before and the quality of removing deoxidation scale solid wire afterwards.Specifically, for example, get the determined material of 100 to 1000mm length, at first, remove organic attachment and applicator by the degreasing of acetone ultrasonic washing from solid wire.Then, measure except that the quality before the deoxidation scale.In addition, if the precision of the scale that quality measurement is used is good, also can shorten determined material.Then, at room temperature carry out the catholyte of determined material, remove the deoxidation scale by using 10 volume % citric acid hydrogen, two ammonium salt solutions for example.Make current density at this moment for example be every 1m
2Determined material 100A, electrolysis time for example are 10 minutes.Then,, determine to have removed all oxidation scales, measure and removed oxidation scale quality afterwards with the cross section of scanning electron microscope observation solid wire.The surface area of lead periphery adopts range finder, at the apparent diameter of 4 point measurement leads, and average this measurement result, it is fully just round cylinder that lead is assumed to the cross section, calculates the area of barrel surface and obtains.
The mensuration number of times of oxidation scale is 5～30 times, can ask its mean value.More than the oxidation scale residual quantity, ask 5～10 times mean value, the oxidation scale is few, asks 20～30 times mean value, thereby even considers that evaluated error also can obtain enough mensuration precision.
Amount coating particle diameter with every 10kg lead 0.01～2g on conductive line surfaces is the choosing of 0.1～10 μ m FromMoS
2, WS
2 More than one materials with graphite
When giving the contact of electric connection, the amount coating with every 10kg lead 0.01～2g on conductive line surfaces is selected from MoS
2, WS
2More than one material with in the graphite can suppress the wearing and tearing to electric connection effectively, and necessary amount can be brought into play effect more than 0.01g/10kg, if more than 2g/10kg, blocking problem takes place.During particle diameter less than 0.1 μ m, can not bring into play slickness,, become the reason of obstruction if, break away from from the surface easily greater than 10 μ m.
The MoS that applies on the conductive line surfaces
2, WS
2Carry out with being analyzed as follows of graphite is described.
＜MoS
2, WS
2Coated weight and granularity 〉
1. apply quantitative analysis
At first, after organic solvent (for example ethanol, acetone, benzinum etc.) washing lead, behind the filter paper filtered wash solution, dry filter paper.Handle dissolving (A) MoS by the white cigarette that this filter paper is used " sulfuric acid " or " sulfuric acid+phosphoric acid "
2, WS
2Then, by the quantitative Mo of atom light absorption method, W.With this measured quantity is (a).Then, with the lead after the ethanol washing impregnated in hydrochloric acid (with concentration be 35% hydrochloric acid be 1 and water be the aqueous solution that 1 ratio is mixed) in, dissolve, from the lead MoS that dissociates
2, WS
2(b).Then, filter this solution with filter paper after, handle dissolving (B) MoS by white cigarette
2, WS
2, with the quantitative Mo of atom light absorption method, W.Amount with this Mo and W is (b).Then, the total amount (G) that is attached to or is embedded in the Mo and the W of conductive line surfaces can be calculated by following formula 1.
Formula 1
(G)＝(a)+(b)
2. the mensuration of particle diameter
Then, to MoS
2, WS
2The assay method of particle diameter describes.The MoS of Tu Fuing from the teeth outwards
2, WS
2Particle diameter obtain the MoS of above-mentioned (A)
2, WS
2Particle diameter, imbed the MoS in the surface
2, WS
2Particle diameter obtain the MoS of above-mentioned (B)
2, WS
2Particle diameter.With these MoS
2And WS
2After the drying, observe particle diameter with scanning electron microscope.
＜coated with graphite quantitative analysis 〉
The following describes the assay method of graphite.At first, with organic solvent (for example, ethanol, acetone or benzinum etc.) washing lead.Filter after this cleaning solution dry this glass filter with glass filter.Then, measure the carbon amount that is collected in the glass filter.With this measured quantity is (a).
On the other hand, will be immersed in the lead after the organic solvent washing salpeter solution (with red fuming nitric acid (RFNA) be 1, water is the aqueous solution that 1 ratio is mixed) in 120 seconds, the glass filter filtering solution is used on the surface of only dissolving lead.Afterwards, dry this glass filter.Then, measure the carbon amount of collecting with the glass filter of this state.With this measured quantity is (b).
For each glass filter that uses in above-mentioned each operation, before measuring, measure the carbon amount, be that (c1 c2), deducts from each measured value blank value with it.Thus, mensuration only is present near the carbon amount of conductive line surfaces.In addition, the carbon of solid solution is not collected by filter in the lead of dissolving, is dissolved in the filtrate.That is, only be attached to conductive line surfaces or the free carbon imbedded under the conductive line surfaces is collected by filter.Therefore, the total amount (D) that is attached to conductive line surfaces or imbeds the carbon under the surface can be calculated by following formula 2.
Formula 2
(D)＝((a)+(b))-((c1)+(c2))
The total amount (D) of this carbon is removed with the quality of lead, can be calculated the coated with graphite amount of every 10kg lead by the value of gained.
The amount of grease: every 10kg lead is 0.2～2.0g
If the not enough 0.2g of the every 10kg solid wire of the amount of the grease that applies then almost can not improve the slickness of solid wire, can't obtain reduction that the coating by grease brings effect to the electric connection wearing and tearing on the solid wire surface.On the other hand,, then increase, therefore, raise for the temperature of electric connection, promoted its wearing and tearing owing to solid wire with to the resistance that electrically contacts between the electric connection if the amount of grease surpasses 2.0g.Therefore, making the amount of grease is that every 10kg solid wire is 0.2～2.0g.In addition, as grease, can apply for example vegetable oil, animal oil, mineral oil and artificial oil.
The amount of grease can adopt the infrared absorption method quantitative assay after the surface of for example using carbon tetrachloride washing solid wire.
In addition, in the present invention, the chemical composition of solid wire for welding is not particularly limited, still, from the viewpoint of the engineering properties of adding, weldability and the weld metal of deacidification effect, alloying component, in the preferred scope below of the content of C, Si, Mn, Ti, Zr and Mo.For example, can use and contain C:0.01～0.12 quality %, Si:0.2～1.2 quality %, Mn:0.5～2.5 quality %, the solid wire for welding of P:0.001～0.03 quality % and S:0.001～0.03 quality %.In addition, the solid wire for welding that also contains Ti and Zr with the amount that adds up to 0.03～0.30 quality % can be used, also the solid wire for welding that also contains Mo 0.01～0.60 quality % can be used.
Embodiment
Below with claims scope outside comparative example compare, embodiments of the invention are specifically described.
At first, with the plain line mechanical deflection of the lead that forms the oxidation scale on the surface, carry out mechanical descaling.At this moment, the plain line of pilot is concavo-convex with oxidation scale interface, controls the thickness of oxidation scale again, thus, and the residual quantity of adjustment oxidation scale.Specifically, when increasing oxidation scale residual quantity, increase the concavo-convex of the plain line of lead surface, very unfertile land forms the oxidation scale simultaneously, is difficult to peel off from the surface.Otherwise when reducing oxidation scale residual quantity, when the plain line of lead was had an even surface, very heavy back formed the oxidation scale, peels off from the surface easily.Adopt the lapping device of machinery again, peel off the oxidation scale from the surface.Then, after carrying out mechanical descaling, be 1.2mm φ with the plain line Wire Drawing of lead to diameter.
In addition, in case of necessity, apply MoS on the plain line of the lead before Wire Drawing or after the Wire Drawing
2, WS
2Or graphite.Specifically, coating has added MoS on the plain line of the lead after mechanical descaling
2, WS
2Or the wire drawing lubricant of graphite, carry out Wire Drawing, perhaps, in grease described later, mix MoS
2, WS
2Or graphite, after Wire Drawing, apply.
And, in case of necessity, after the plain line of lead after washing and dry Wire Drawing, make it on the surface that charged oil droplet is coated in the plain line of lead by the static electric power grease that will atomize, at this moment, by atomization quantity and the applied voltage of unit of adjustment's time, can control the coating oil mass of every 10kg lead accurately.
In addition, to the various embodiment (No.1 is to No.17) that make by these methods and the solid wire for welding of comparative example (No.18 is to No.27), measure the amount of oxidation scale, the concentrationization of element sulphur and the oil quantity on surface by said method, measure wear extent by method shown below simultaneously to electric connection.
The welding of using commercially available Cr-Cu system to electric connection is measured its wear extent with giving electric connection by the decrement method.Specifically, at first, adopt organic solvent ultrasonic washings such as acetone or benzinum to give electric connection, remove cutting oil and cutting swarf thus.Then, after the drying, measure quality to electric connection (quality before using) with the unit of 0.1mg with electronic balance.Then, will be installed on the automatic welding machine, carry out 1 hour continuous welding to electric connection.Because blanket gas can the butt joint wear extent have some influences, therefore, in whole welding, making blanket gas is CO
2(100 volume %).In addition, the diameter of solid wire for welding is φ 1.2mm as mentioned above, and as for other welding conditions, welding current is 300A, and weldingvoltage is 38V, and speed of welding is the 20cm/ branch, and outstanding length is 25mm, and the welding posture is downward.After such continuous welding, remove and be attached to splashing and dirt on the electric connection, re-use organic solvent and carry out ultrasonic washing, after the drying, use electronic balance, measure quality (quality after the use) with the unit of 0.1mg to electric connection.Then, deduct the quality after the use the quality before use, thereby calculate per 1 hour wear extent of giving electric connection with the unit of 0.1mg.
The composition of the various solid wire for welding by the preparation of these methods as shown in Table 1 and Table 2, every 100mm
2The MoS on the amount (mg) of the oxidation scale of lead, surface
2, WS
2Or the oil quantity (g) of quantity of graphite, every 10kg lead and the wear extent (mg/ hour) of giving electric connection are shown in table 3 and table 4.In addition, the residual quantity of oxidation scale is to get 5 determined materials from the solid wire for welding of an embodiment and comparative example at random, with their numerical value of residual quantity equalization.
Table 1
| ???No. | The chemical composition of solid wire (quality %) | |||||
| ????C | ????Si | ????Mn | ????Mo | ????Ti+Zr | ||
| Embodiment | ????1 | ????0.06 | ????0.7 | ????1.3 | ????- | ????0.24 |
| ????2 | ????0.06 | ????0.8 | ????1.3 | ????- | ????0.26 | |
| ????3 | ????0.03 | ????0.4 | ????1.5 | ????- | ????0.29 | |
| ????4 | ????0.05 | ????0.8 | ????1.9 | ????- | ????0.24 | |
| ????5 | ????0.08 | ????0.8 | ????1.7 | ????- | ????0.28 | |
| ????6 | ????0.04 | ????0.6 | ????1.4 | ????- | ????0.15 | |
| ????7 | ????0.05 | ????0.7 | ????1.5 | ????- | ????0.21 | |
| ????8 | ????0.05 | ????0.9 | ????1.6 | ????- | ????- | |
| ????9 | ????0.08 | ????1 | ????1.5 | ????- | ????- | |
| ????10 | ????0.06 | ????0.84 | ????1.5 | ????- | ????0.17 | |
| ????11 | ????0.05 | ????0.8 | ????1.8 | ????- | ????- | |
| ????12 | ????0.04 | ????0.9 | ????1.9 | ????0.25 | ????- | |
| ????13 | ????0.05 | ????0.8 | ????1.7 | ????- | ????0.14 | |
| ????14 | ????0.01 | ????0.85 | ????2 | ????0.3 | ????0.3 | |
| ????15 | ????0.04 | ????0.5 | ????0.8 | ????0.5 | ????0.28 | |
| ????16 | ????0.05 | ????0.02 | ????0.9 | ????0.5 | ????0.1 | |
| ????17 | ????0.04 | ????0.05 | ????0.5 | ????0.4 | ????0.05 | |
Table 2
| ????No. | The chemical composition of solid wire (quality %) | |||||
| ????C | ????Si | ????Mn | ????Mo | ????Ti+Zr | ||
| Comparative example | ????18 | ????0.05 | ????0.7 | ????1.3 | ????- | ????0.22 |
| ????19 | ????0.05 | ????1 | ????1.6 | ????- | ????0.2 | |
| ????20 | ????0.07 | ????1.1 | ????1.4 | ????- | ????0.23 | |
| ????21 | ????0.08 | ????0.5 | ????1.4 | ????- | ????0.18 | |
| ????22 | ????0.06 | ????0.9 | ????1.5 | ????- | ????0.26 | |
| ????23 | ????0.08 | ????0.7 | ????1.2 | ????- | ????- | |
| ????24 | ????0.09 | ????0.7 | ????1.9 | ????- | ????0.18 | |
| ????25 | ????0.06 | ????0.8 | ????1.9 | ????- | ????0.05 | |
| ????26 | ????0.08 | ????0.5 | ????1.8 | ????0.07 | ????0.13 | |
| ????27 | ????0.11 | ????0.9 | ????1 | ????0.05 | ????0.09 | |
Table 3
| ???No. | Oxidation scale amount (mg/100mm 2) | The MoS of conductive line surfaces 2、WS 2, graphite | Oil mass (g/10kg) | Give the abrasion amount (mg/ hour) of electric connection | ||
| Kind | Amount (g/10kg) | |||||
| Embodiment | ????1 | ????0.0080 | ??MoS 2 | ????0.15 | Trace | ????7.2 |
| ????2 | ????0.0050 | ??MoS 2+WS 2 | ????0.2 | Trace | ????8.5 | |
| ????3 | ????0.0020 | ??WS 2+ graphite | ????0.03 | Trace | ????7.0 | |
| ????4 | ????0.0080 | ??WS 2 | ????0.01 | Trace | ????8.2 | |
| ????5 | ????0.010 | ??MoS 2+WS 2+ graphite | ????0.5 | ????0.8 | ????2.2 | |
| ????6 | ????0.02 | ??MoS 2 | ????1.5 | ????0.2 | ????3.0 | |
| ????7 | ????0.21 | Graphite | ????1.9 | ????1.9 | ????2.5 | |
| ????8 | ????0.010 | ??MoS 2+ graphite | ????0.8 | ????0.8 | ????3.4 | |
| ????9 | ????0.010 | ??MoS 2+ ??WS 2 | ????0.2 | ????0.6 | ????3.9 | |
| ????10 | ????0.30 | Graphite | ????0.8 | ????1.5 | ????4.5 | |
| ????11 | ????0.16 | ??WS 2+ graphite | ????0.1 | ????1.8 | ????4.3 | |
| ????12 | ????0.14 | ??WS 2 | ????0.2 | ????0.5 | ????4.2 | |
| ????13 | ????0.016 | ??MoS 2+WS 2+ graphite | ????0.5 | ????0.6 | ????2.9 | |
| ????14 | ????0.14 | ??MoS 2 | ????0.15 | ????1.6 | ????1.9 | |
| ????15 | ????0.24 | ??MoS 2+WS 2 | ????0.9 | ????1.1 | ????3.2 | |
| ????16 | ????0.26 | ??MoS 2 | ????0.2 | ????1.5 | ????1.1 | |
| ????17 | ????0.29 | ??MoS 2 | ????0.1 | ????0.5 | ????2.2 | |
Table 4
| ????No. | Oxidation scale amount (mg/100mm 2) | The MoS of conductive line surfaces 2、WS 2, graphite | Oil mass (g/10kg) | Give the abrasion amount (mg/ hour) of electric connection | ||
| Kind | Amount (g/10kg) | |||||
| Comparative example | ????18 | ????0.0015 | ????MoS 2 | ????0.05 | ????0.5 | ????61 |
| ????19 | ????0.0019 | Do not have | ????0 | ????0.6 | ????55 | |
| ????20 | Trace | ????WS 2 | ????0.15 | ????1.2 | ????51 | |
| ????21 | Trace | Do not have | ????0 | ????0.3 | ????39 | |
| ????22 | ????0.001 | ????MoS 2 | ????0.3 | ????2.5 | ????25 | |
| ????23 | ????0.4 | Do not have | ????0 | ????1.5 | ????80 | |
| ????24 | ????0.5 | ??MoS 2+WS 2 | ????0.5 | ????1.7 | ????29 | |
| ????25 | ????0.008 | ????MoS 2 | ????0.008 | ????0.2 | ????45 | |
| ????26 | ????0.01 | Do not have | ????0 | Trace | ????35 | |
| ????27 | ????0.1 | ????WS 2 | ????0.008 | ????0.1 | ????71 | |
Shown in above-mentioned table 3 and table 4, in No.17,, therefore, give the wear extent of electric connection minimum owing to formed an amount of oxidation scale from the teeth outwards at embodiment No.1.
On the other hand, in No.21,, increase for the wear extent of electric connection at comparative example No.18 because therefore the lower limit of the quantity not sufficient scope of the invention of oxidation scale, can not form enough overlay films at the contact of giving electric connection.In addition, in No.27, because the amount of oxidation scale has surpassed the upper limit of the scope of the invention, so lead and raise for the resistance that electrically contacts between the electric connection, the wearing and tearing of electric connection have been aggravated to give at comparative example No.23.
As mentioned above, according to the present invention, owing to formed an amount of oxidation scale from the teeth outwards, thereby when giving the contact of electric connection, the fusion of oxidation scale is solidified at the contact to electric connection, therefore, cover for the oxidized iron overlay film of contact of electric connection, can suppress its wearing and tearing.Therefore, needn't impose the copper plating, prevent the consumption of acid solution, alkaline solution and washings etc. essential in the copper plating, can reduce load environment.
Claims (5)
1. a solid wire for welding is characterized in that, every 100mm
2Conductive line surfaces forms 0.002 to 0.3mg oxidation scale, and on conductive line surfaces, applying particle diameter with the amount of every 10kg lead 0.01～2g is the MoS that is selected from of 0.1～10 μ m
2, WS
2More than one material with in the graphite does not impose plating.
2. as the solid wire for welding of claim 1 record, it is characterized in that the amount with every 10kg lead 0.2～2.0g applies at least a oil that is selected from vegetable oil, animal oil, mineral oil and the artificial oil from the teeth outwards.
3. as the solid wire for welding of claim 1 or 2 records, it is characterized in that, contain C:0.01～0.12 quality %, Si:0.2～1.2 quality %, Mn:0.5～2.5 quality %, P:0.001～0.03 quality % and S:0.001～0.03 quality %.
4. as the solid wire for welding of claim 3 record, it is characterized in that, also contain the Ti and the Zr that add up to 0.03 to 0.30 quality %.
5. as the solid wire for welding of claim 3 or 4 records, it is characterized in that, also contain Mo0.01 to 0.60 quality %.
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|---|---|---|---|
| JP2001152015 | 2001-05-22 | ||
| JP2001152015 | 2001-05-22 | ||
| JP2001-152015 | 2001-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021203237A Expired - Lifetime CN1199762C (en) | 2001-05-22 | 2002-05-22 | Solid wire for welding |
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|---|---|
| KR (1) | KR100502039B1 (en) |
| CN (1) | CN1199762C (en) |
Cited By (1)
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|---|---|---|---|---|
| CN102905844A (en) * | 2010-05-31 | 2013-01-30 | 株式会社神户制钢所 | Copper-plated solid wire for welding |
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| KR100626415B1 (en) | 2004-12-03 | 2006-09-20 | 고려용접봉 주식회사 | Unpainted Wire for Gas Shield Arc Welding |
| KR100593729B1 (en) | 2004-12-03 | 2006-07-03 | 고려용접봉 주식회사 | Unpainted Wire for Gas Shield Arc Welding |
| KR100914796B1 (en) * | 2005-03-29 | 2009-09-02 | 신닛뽄세이테쯔 카부시키카이샤 | Metallic flux cored wire, gas shielded arc welding process with the same, and process for production of welded joints having high fatigue strength with little slag |
| CN100339179C (en) * | 2005-06-30 | 2007-09-26 | 山西威尔德工业有限责任公司 | CO2 gas-shielded solid-core welding wire coateds graphite coating on its surface and its manufacturing method |
| KR100673544B1 (en) | 2005-08-22 | 2007-01-24 | 고려용접봉 주식회사 | Unpainted Wire for Gas Shield Arc Welding |
| CN101745749B (en) * | 2008-12-19 | 2011-08-31 | 中冶焊接科技有限公司 | Coating welding wire and preparation method thereof |
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| JP3153040B2 (en) * | 1993-04-01 | 2001-04-03 | 日鐵溶接工業株式会社 | Gas shielded arc welding wire |
-
2002
- 2002-05-22 KR KR10-2002-0028404A patent/KR100502039B1/en not_active Expired - Lifetime
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|---|---|---|---|---|
| CN102905844A (en) * | 2010-05-31 | 2013-01-30 | 株式会社神户制钢所 | Copper-plated solid wire for welding |
| CN102905844B (en) * | 2010-05-31 | 2017-04-05 | 株式会社神户制钢所 | Copper-plated solid wire for welding |
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| KR100502039B1 (en) | 2005-07-25 |
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