CN107829039A - A kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips surface increase the moulding process of material - Google Patents
A kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips surface increase the moulding process of material Download PDFInfo
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- CN107829039A CN107829039A CN201710879405.0A CN201710879405A CN107829039A CN 107829039 A CN107829039 A CN 107829039A CN 201710879405 A CN201710879405 A CN 201710879405A CN 107829039 A CN107829039 A CN 107829039A
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- 239000000956 alloy Substances 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000004411 aluminium Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 14
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 12
- 238000000465 moulding Methods 0.000 title claims abstract description 10
- 238000010009 beating Methods 0.000 title abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 9
- 239000010941 cobalt Substances 0.000 claims abstract description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 9
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 8
- 239000010955 niobium Substances 0.000 claims abstract description 8
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 8
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 30
- 229910045601 alloy Inorganic materials 0.000 claims description 27
- 238000005253 cladding Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000005275 alloying Methods 0.000 claims description 9
- 238000000889 atomisation Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- 150000001639 boron compounds Chemical class 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- 229940125797 compound 12 Drugs 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- 239000010936 titanium Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- -1 boride Chemical compound 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 29
- 239000010410 layer Substances 0.000 description 11
- 210000004027 cell Anatomy 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 208000031973 Conjunctivitis infective Diseases 0.000 description 4
- 201000001028 acute contagious conjunctivitis Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012387 aerosolization Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
- C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/14—Devices for feeding or crust breaking
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to the moulding process that a kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips surface increase material, the alloy material, its component to use：Hafnium, titanium, molybdenum, cobalt, niobium, boride, tungsten carbide, titanium carbide, carbon, silicon, remaining is iron.The crust-breaking chips of the present invention has the advantage that：(1) service life was up to 1.5 years, far above 34 months of traditional crust-breaking chips；(2) materials'use of crust-breaking chips has been saved；(3) reduce the better frequency of crust-breaking chips, save the labour changed；(4) it is lost small；(5) it is cost-effective.
Description
Technical field
The present invention relates to the moulding process that a kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips increase material.
Background technology
At present, the prebaked-anode type cell of aluminum electrolysis industry uses middle point type crust-breaking ＆ baiting mode, for electrolytic aluminium
Every electrolytic cell of technique, it is typically provided three to six crust-breaking chips alternating crust-breaking ＆ baitings.Middle point feeding is exactly crust breaking hammer
Head breaks up the hard crust of bath surface, is commonly called as " crust breaking ", forms hole, and the hole is commonly called as " pinkeye ", and " pinkeye " is used as oxygen
Change aluminium feeding point and the passage of anodic gas discharge, it is necessary to which the moment keeps its unblocked." pinkeye " unimpeded holding, just
Need the crust breaking action for controlling crust breaking system to drive crust-breaking chips execution cycle property.
Forge Q235, casting ZG235-270 steels or the casting of high chromium low-alloy used by crust-breaking chips during material at present
Iron standby, the steel hardness of these materials is low, and fusing point is low, and abrasion resistance properties are poor, therefore the life-span is shorter, is just needed more within individual month per 3-4
Change once.In order to improve the service life of crust-breaking chips, patent 200610050934.1 is devised to meet GB/T8492-
The trade mark ZG30Cr26Ni5 or ZG30Cr20Ni10 steel in 1987 is the crust-breaking chips of material；Patent
200910117260.6 invention is devised with rare-earth and high chromium steel（C 1.5-2.5%,Si 0.5-1.5%,Mn 0.2-1.5%,Cr
25.0-35.0%, P and S ＜ 0.05%, mischmetal 0.075-0.1%）For the crust-breaking chips of material, both materials
Common feature is all to improve the Cr contents in tup, improves the hardness and fusing point of steel.But material polishing machine
Improve, not only need a very high hardness, it is also necessary to which there is higher strength and toughness.Meanwhile Corrosion Protection carries
One unalterable quota of height and crust-breaking chips material.
For aluminium electrolyte temperature in electrolytic cell in 950 degrees centigrades, crust-breaking chips breaks cell surface shell blanking
When, crust-breaking chips can be caused about to be used by the crust-breaking chips that high temperature corrosion is worn by aluminium electrolyte high temperature corrosion and abrasion
Cone will be turned within three months, the steel body material of crust-breaking chips is worn and is melted into aluminium liquid, and cone is beaten
The effective area of broken shell layer diminishes, and influences crust-breaking ＆ baiting efficiency, therefore typically beaten using what 3-4 just must more renew for individual month or so
Shell hammer.
Many drawbacks be present because the life-span is low, it is frequent to change in the existing crust-breaking chips of existing market：（1）Crust-breaking chips material
Waste, such as the smelting shop of a 300 kilo-ampere electrolytic aluminiums is provided with 160 electrolytic cells, every electrolytic cell is provided with 6 crust breakings
Tup, every about 15 kilograms of tup weight, disposable crust-breaking chips of installing are：6 × 160=960, need more within 1 year
Four tups are changed, need 3840 tups altogether every year, add up to about 57.6 tons of tonnage, No. four crust-breaking chips is changed within 1 year, causes to be used for
The steel consumption amount of crust-breaking chips is big.（2）Dismounting and replacing crust-breaking chips waste substantial amounts of labour.Such as, 300 kilo-amperes
The gross weight of the crust-breaking chips in electrolytic aluminum smelting workshop is about 57.6 tons, dismantles the tup being worn while also needs to install new hammer again
Head, the steel gross weight of this disassembly and installation crust-breaking chips process is approximately more than 57.6 tons, causes maintenance personal's labor intensity big, batch
Amount changes crust-breaking chips and has an effect on normal production.（3）The quality of electrolytic aluminium is influenceed, crust-breaking chips wears and be dissolved in electrolysis
In aluminium ingot, electrolysis aluminium ingot is added the content of steel, also have an impact relatively to the quality of aluminium ingot.
Therefore, new crust-breaking chips material and its preparation technology are invented, so as to improve the life-span of crust-breaking chips, drop will be helped
Low production cost, the workload overhauled in production process is reduced, improve the quality of electrolytic aluminium.
The content of the invention
The purpose of the present invention is the deficiency of the material and technology of preparing for existing crust-breaking chips, there is provided a kind of high abrasion,
High rigidity, corrosion-resistant, the high life crust-breaking chips material and its technology of preparing.
A kind of crust-breaking chips material used for aluminium electrolysis, the weight proportion of its component are：Hafnium 2%-5%, chromium 9%-11%, molybdenum 5%-
10%, cobalt 10%-13%, niobium 2-4%, boride 12%-25%, tungsten carbide 15%-25%, titanium carbide 8%-10%, carbon 0.1%-1.5%,
Silicon 0.5%-1.5%, remaining is iron.
In above-mentioned alloying component, the addition of hafnium causes crust-breaking chips cannot not have the function that viscously to be stained with aluminium liquid, avoids aluminium liquid
The problem of " pinkeye " shaping is difficult caused by being united with crust-breaking chips.
In above-mentioned alloying component, the addition of molybdenum, cobalt and niobium enhances the high-temperature behavior of alloy material, improves crust-breaking chips
High temperature hardness under the conditions of 950 DEG C, improve its high-wear resistance in use.
In above-mentioned alloying component, the addition of boron carbide effectively improves the Corrosion Protection of crust-breaking chips so that crust breaking hammer
Head can obtain good corrosion fatigue life in aluminium liquid.
The addition of tungsten carbide and titanium carbide further improves the hardness and decay resistance of crust-breaking chips in above-mentioned alloy, enters
One step strengthens the service life of crust-breaking chips, while the addition of tungsten carbide can reduce the use of hafnium, molybdenum, cobalt, niobium alloy element,
Reduce the cost of material.
Above-mentioned crust-breaking chips alloy material used for aluminium electrolysis, material are using iron as matrix material, are thought using high temperature high hard alloy
Road, the alloying element such as alloying hafnium, titanium, molybdenum, cobalt, nickel and niobium in iron-based are resistance to using the high rigidity of tungsten carbide and titanium carbide, height
Mill property, high anti-corrosive properties performance carry out Material reinforcement, to reach the service life for improving crust-breaking chips, extend the replacement cycle,
Reduce production cost and workload.
Because the alloy material price of the invention described above is higher, if casting or forging side using traditional crust-breaking chips
Method prepares crust-breaking chips, and cost will be very high, not possess superiority of effectiveness.
Therefore, it is of the invention, the alloy material of foregoing invention is made into powder, carrying out crust-breaking chips surface using powder increases material
Protective layer is prepared, manufactures new crust-breaking chips.
Alloy powder preparation section is：
(1) above-mentioned alloying component is subjected to melting, ingot is made in refining in case using；
(2) ingot is carried out by atomization using Mechanical Crushing, ball mill crushing or atomization and prepares alloy powder；
(3) physics to alloy powder, chemical property detect；
In the case where the composition of alloy powder should meet the component requirements of the present invention, the granularity requirements of alloy powder 150-200 mesh it
Between, powder drying is packaged for using.
The process of crust-breaking chips surface increasing material manufacturing cladding protective layer is：
(1) use Q235 steel according to the Vehicle Processing of crust-breaking chips drawing into product blank, in the crust-breaking chips front end contacted with aluminium liquid
Reserve 1.5mm surplus in position.
(2) using modes such as powder sintered, laser melting coating or plasma claddings, before alloy powder cladding to crust-breaking chips
End position, it is ensured that the position contacted with aluminium liquid is all with alloy-layer.
(3) during alloy powder increasing material manufacturing, per pass cladding slit width is no more than 45mm, avoids because cladding slit width causes greatly very much
Cracking.
(4) per pass cladding seam overlap joint is not more than 5mm, avoids waste of materials；But 0.5mm can not be less than, avoid the occurrence of due to
The region for not having alloy-layer to protect occurs, therefore exposed region will cause the service life of crust-breaking chips to reduce.
The crust-breaking chips service life of the present invention reaches 1.5 years, in the time using 1.5 years, the protection of crust-breaking chips
Thickness degree 1.5mm is worn and corroded substantially.
Compared with traditional crust-breaking chips, crust-breaking chips of the invention has the advantage that：(1) service life is up to 1.5 years,
Far above 3-4 months of traditional crust-breaking chips；(2) materials'use of crust-breaking chips has been saved；(3) crust-breaking chips is reduced more
Good frequency, the labour changed is saved；(4) each crust breaking point has only melted beating for 1.5mm in aluminium liquid groove in 1.5 years
The thickness of shell hammer, about 600 grams of weight metal.Melt 4-5 crust-breaking chips compared to each crust breaking point of more traditional crust-breaking chips,
Up to 5*15 kilograms=75 kilograms of steel amount, crust-breaking chips of the invention every year each crust breaking point be only lost 600 grams steel gold
Category, effectively increase the quality of aluminium liquid；(5) high cost performance, crust-breaking chips cost of the invention are approximately the 2 of traditional crust-breaking chips
Times, but service life is 4 times of traditional crust-breaking chips, plus the raising effect of the replacing labour of reduction, and aluminium liquid quality,
Cost performance is very considerable.
Embodiment
Embodiment 1
By hafnium 5%, chromium 10%, molybdenum 10%, cobalt 12%, niobium 2%, boride 20%, tungsten carbide 25%, titanium carbide 8%, carbon 0.5%, silicon
0.8%, remaining is that iron carries out dispensing, and blank is made in fusing, melting.
Ingot is carried out by atomization using gas atomization and prepares alloy powder；Aerosolization gas is atomized using argon gas, is kept away
Exempt from the scaling loss of the alloying elements such as titanium.
Physics, chemical property to alloy powder detect；The composition for meeting the present invention in the composition of alloy powder will
Ask.
Powder drying is packaged for using by the granularity requirements of alloy powder between 150-200 mesh.
The process of crust-breaking chips surface increasing material manufacturing cladding protective layer is：
(1) use Q235 steel according to the Vehicle Processing of crust-breaking chips drawing into product blank, before the crust-breaking chips contacted with aluminium liquid
Reserve 1.5mm cladding space in end position.
(2) plasma cladding mode is used, laser power is cladding electric current 110A, by alloy powder cladding to crust-breaking chips
Front end position, it is ensured that the position contacted with aluminium liquid is all with alloy-layer.
(3) during alloy powder increasing material manufacturing, per pass cladding slit width is no more than 45mm, avoids because cladding slit width causes greatly very much
Cracking.
(4) per pass cladding seam overlap joint is not more than 5mm, avoids waste of materials；But 0.5mm can not be less than, avoid the occurrence of due to
The region for not having alloy-layer to protect occurs, therefore exposed region will cause the service life of crust-breaking chips to reduce.
The thickness of crust-breaking chips surface peening layer is examined to reach 1.5mm, strengthening layer does not have crackle, and qualified crust-breaking chips is entered
Row storage.
Embodiment 2
By hafnium 3%, titanium 10%, molybdenum 9%, cobalt 11%, niobium 3%, boride 25%, tungsten carbide 20%, titanium carbide 9%, carbon 0.3%, silicon
0.8%, remaining is that iron carries out dispensing, and blank is made in fusing, melting.
Ingot is carried out by atomization using gas atomization and prepares alloy powder；
Physics, chemical property to alloy powder detect；Meet the component requirements of the present invention in the composition of alloy powder.
Powder drying is packaged for using by the granularity requirements of alloy powder between 150-200 mesh.
The process of crust-breaking chips surface increasing material manufacturing cladding protective layer is：
(1) use Q235 steel according to the Vehicle Processing of crust-breaking chips drawing into product blank, before the crust-breaking chips contacted with aluminium liquid
Reserve 1.5mm cladding space in end position.
(2) laser melting coating mode is used, laser power 2.2KW, by alloy powder cladding to crust-breaking chips front end position,
The position for ensuring to contact with aluminium liquid is all with alloy-layer.
(3) during alloy powder increasing material manufacturing, per pass cladding slit width is no more than 45mm, avoids because cladding slit width causes greatly very much
Cracking.
(4) per pass cladding seam overlap joint is not more than 5mm, avoids waste of materials；But 0.5mm can not be less than, avoid the occurrence of due to
The region for not having alloy-layer to protect occurs, therefore exposed region will cause the service life of crust-breaking chips to reduce.
The thickness of crust-breaking chips surface peening layer is examined to reach 1.5mm, strengthening layer does not have crackle, and qualified crust-breaking chips is entered
Row storage.
Claims (9)
1. a kind of crust-breaking chips used for aluminium electrolysis increases timber-used alloy material, it is characterised in that the weight proportion of its component is：Hafnium 2%-
5%, chromium 9%-11%, molybdenum 5%-10%, cobalt 10%-13%, niobium 2-4%, boride 12%-25%, tungsten carbide 20%-30%, titanium carbide 8%-
10%, carbon 0.1%-1.5%, silicon 0.5%-1.5%, remaining is iron.
2. the crust-breaking chips used for aluminium electrolysis described in a kind of claim 1 increases the preparation method of timber-used alloy material alloy, its feature
It is, comprises the following steps：
(1) alloying component is mixed in proportion and carries out melting, ingot is made in refining in case using；
(2) ingot is carried out by atomization using Mechanical Crushing, ball mill crushing or atomization and prepares alloy powder.
3. a kind of crust-breaking chips used for aluminium electrolysis according to claim 2 increases the preparation method of timber-used alloy material, its feature
It is, the granularity of the alloy powder is 150-200 mesh.
4. a kind of new crust-breaking chips increases the moulding process of material, it is characterised in that：Crust-breaking chips is increased material and prepared using alloy material,
The weight proportion of the alloy material component is：Hafnium 2%-5%, chromium 9%-11%, molybdenum 5%-10%, cobalt 10%-13%, niobium 2-4%, boron
Compound 12%-25%, tungsten carbide 15%-25%, titanium carbide 8%-10%, carbon 0.1%-1.5%, silicon 0.5%-1.5%, remaining is iron.
5. a kind of new crust-breaking chips according to claim 4 increases the moulding process of material, it is characterised in that：The alloy material
The preparation method of material comprises the following steps：
(1) alloying component is mixed in proportion and carries out melting, ingot is made in refining in case using；
(2) ingot is carried out by atomization using Mechanical Crushing, ball mill crushing or atomization and prepares alloy powder.
6. a kind of new crust-breaking chips according to claim 4 or 5 increases the moulding process of material, it is characterised in that：The conjunction
The granularity at bronze end is 150-200 mesh.
7. a kind of new crust-breaking chips surface according to claim 4 or 5 increases the moulding process of material, it is characterised in that bag
Include following steps：
(1) crust-breaking chips product blank is processed into using Q235 steel, reserved at the crust-breaking chips front end position contacted with aluminium liquid
1.5mm surplus；
(2) powder sintered, laser melting coating or plasma cladding mode are used, by alloy powder cladding to crust-breaking chips leading section
Position, it is ensured that the position contacted with aluminium liquid is all with alloy-layer.
8. a kind of new crust-breaking chips surface according to claim 7 increases the moulding process of material, it is characterised in that crust breaking hammer
During head surface increasing material manufacturing, per pass cladding slit width degree 10-35mm.
9. a kind of new crust-breaking chips surface according to claim 7 increases the moulding process of material, it is characterised in that crust breaking hammer
During head surface increasing material manufacturing, per pass cladding seam overlap joint is not more than 5mm, it is impossible to less than 0.5mm.
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| CN108950431A (en) * | 2018-06-15 | 2018-12-07 | 酒泉钢铁(集团)有限责任公司 | A kind of titaniferous high abrasion has both the crust-breaking chips material of corrosion resisting property |
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| CN109338413A (en) * | 2018-11-13 | 2019-02-15 | 江西省科学院应用物理研究所 | A new type of shell hammer for electrolytic aluminum and its manufacturing method |
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| CN114378280B (en) * | 2022-01-17 | 2024-05-24 | 阜新祥远铸造有限公司 | Preparation method of single-phase non-magnetic corrosion-resistant electrolytic aluminum crust breaking hammer and product thereof |
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