CN108048878A - A kind of metal-based compound coating crust breaking hammer - Google Patents
A kind of metal-based compound coating crust breaking hammer Download PDFInfo
- Publication number
- CN108048878A CN108048878A CN201710969598.9A CN201710969598A CN108048878A CN 108048878 A CN108048878 A CN 108048878A CN 201710969598 A CN201710969598 A CN 201710969598A CN 108048878 A CN108048878 A CN 108048878A
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- Prior art keywords
- crust breaking
- breaking hammer
- based compound
- metal
- coating
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- 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
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The present invention provides a kind of metal-based compound coating crust breaking hammer, the first step, high-temperature-resistant and anti-corrosion metal-based compound coated powder is prepared, second step, crust breaking hammer matrix makes, the 3rd step, and crust breaking hammer matrix surface cladding processing is carried out using plasma surfacing technique, it is allowed to melt with matrix surface and quickly solidify, so as in the face coat that crust breaking hammer matrix surface is formed with it is metallurgical binding.The present invention overcomes the deficiencies in the prior art, plasma melting coating process, convenient for mechanization and automation, it can realize that stable mass produces, substantially free from environmental pollution, the technique firing rate is fast, the thermal efficiency is high, and coating is high with substrate combinating strength, coating ion concentration is high, so as to enhance the performance of matrix and quality.
Description
Technical field
The present invention relates to metals against corrosion technical fields, and in particular to a kind of metal-based compound coating crust breaking hammer.
Background technology
It is increasing to matrix surface cladding product demand with the upgrading of industrial technology, either metal-based compound material
Material prepares and melting and coating process aspect, is all actively developing research both at home and abroad.At present, common cladding method has：Vacuum cladding swashs
The techniques such as light cladding, oxy-acetylene flame cladding, high frequency cladding.Common cladding material has：Self-fluxing alloyed powder, carbide are multiple
Close powder systems, oxide ceramic powder etc.；
The performances such as metal-base composites is corrosion-resistant, anti-oxidant, high temperature resistant, suitable for repairing or preparing reinforcing key equipment
Parts improve the service life of equipment.It is widely used in the fields such as automobile, machine-building, petrochemical industry.Such as：Engine
The auto parts machineries such as piston, cylinder inside groove, gear, delivery valve seat, cylinder cap, connecting rod, offgas duct；Pressure roller, transmission shaft, rub at breather valve
Wipe the mechanical equipments accessories such as disk, guide groove；Well-head valve valve plate, valve rod, valve seat, oil pump plunger piston, augmented injection pump plunger, drilling rod connecting
The oil special part such as hoop, sucker rod, polished rod.
Aluminum i ndustry is high-effect, the demand for development of low stain, and middle part point feeding pre-calcining electrolytic cell is made progressively to become aluminium
The mainstream of electrolysis production.Since electrolysis bath crust-breaking hammer works long hours in the environment of high-intensity magnetic field, high temperature, deep-etching high current,
Tup is caused to consume, and fast, replacement is frequent.According to statistics, domestic all kinds of crust breaking hammers about 2,000,000 of consumption in 2014, such as：Chalco
Year consumption crust breaking hammer more than 10 ten thousand, Shandong Wei Qiao consumption crust breaking hammers about 150,000.
Therefore, the strong composite markets demand of corrosion-resistant, wear-resisting high temperature oxidation resistance is huge, its resistance to height of the prior art
Temperature, poor corrosion resistance, service life is generally shorter (2-6 months), and tup rapid deterioration can make a large amount of iron and other members
Element enters in molten aluminum, seriously affects molten aluminum quality.
The content of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of metal-based compound coating crust breaking hammer, existing skill is overcome
The deficiency of art has stronger Wear-resistant, high-temperature resistant corrosion resistance, meets alumina electrolysis bath high-intensity magnetic field, high temperature, heavy current, height
The work condition environment requirement of corrosion.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of metal-based compound coating crust breaking hammer, the first step, high-temperature-resistant and anti-corrosion metal-based compound coated powder are prepared, powder
Last granularity is 0.2-0.6mm, and prepared composite coating powder has higher film-base junction to make a concerted effort, can be with by high temperature heat source
It being deposited on different basis materials, can obviously improve matrix surface performance, coating is fine and close, bond strength is big, corrosion-resistant,
High temperature resistant, oxidation resistant；
Second step, crust breaking hammer matrix make：Round steel is sawn by specific length using sawing machine, numerical control is set according to product specification
Working parameter of lathe is processed further the round steel of preparatory processing, scale removal, greasy dirt and various mark marks；Specification one
As for Φ 75*300mm, Φ 90*320mm, Φ 90*340mm；
3rd step carries out crust breaking hammer matrix surface cladding processing using plasma surfacing technique：By the crust breaking of machine-shaping
Hammer matrix one end is fixed on built-up welder turntable, will have been configured alloy powder and has been baked and banked up with earth 1-2h at a temperature of 150 DEG C, has been positioned over container
It is interior, setting program on request, with continuous injection method on crust breaking hammer matrix cladding composite powder, through high-energy-density automatic welding
It connects, is allowed to melt with matrix surface and quickly solidify, so as on the surface that crust breaking hammer matrix surface is formed with it is metallurgical binding
Coating.
Alloy powder particle is evenly distributed and in the coating substantially without scaling loss in 3rd step, so as to keep its original high
Hardness and high-wearing feature.
It is welded in 3rd step using argon gas, welding temperature is up to 18000k (about 1.77 ten thousand DEG C), coating layer thickness 2-
5mm。
(3) advantageous effect
An embodiment of the present invention provides a kind of metal-based compound coating crust breaking hammers.Possesses following advantageous effect：" Metal Substrate is multiple
Close coating crust breaking hammer ", there is stronger Wear-resistant, high-temperature resistant corrosion resistance, meet alumina electrolysis bath high-intensity magnetic field, high temperature, forceful electric power
The work condition environment requirement of stream, high corrosion.Product hardness >=56, heatproof is up to 1300 degree, service life 12-15 months；Product weight
Amount is light compared with the crust breaking hammer of same specification by 20%, and electrolytic cell driving energy consumption is reduced during use；Tup is small with electrolyte viscosity, avoids
Shell head bag is formed, enables the timely return of cylinder, shortens the time of tup immersion in the electrolyte, so as to reduce the molten of tup
Change speed.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, to the technology in the embodiment of the present invention
Scheme is clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, belongs to the scope of protection of the invention.
A kind of metal-based compound coating crust breaking hammer, the first step, high-temperature-resistant and anti-corrosion metal-based compound coated powder are prepared, powder
Last granularity is 0.2-0.6mm, and prepared composite coating powder has higher film-base junction to make a concerted effort, can be with by high temperature heat source
It being deposited on different basis materials, can obviously improve matrix surface performance, coating is fine and close, bond strength is big, corrosion-resistant,
High temperature resistant, oxidation resistant；
Second step, crust breaking hammer matrix make：Round steel is sawn by specific length using sawing machine, numerical control is set according to product specification
Working parameter of lathe is processed further the round steel of preparatory processing, scale removal, greasy dirt and various mark marks；Specification one
As for Φ 75*300mm, Φ 90*320mm, Φ 90*340mm；
3rd step carries out crust breaking hammer matrix surface cladding processing using plasma surfacing technique：By the crust breaking of machine-shaping
Hammer matrix one end is fixed on built-up welder turntable, will have been configured alloy powder and has been baked and banked up with earth 1-2h at a temperature of 150 DEG C, has been positioned over container
It is interior, setting program on request, with continuous injection method on crust breaking hammer matrix cladding composite powder, through high-energy-density automatic welding
It connects, is allowed to melt with matrix surface and quickly solidify, so as on the surface that crust breaking hammer matrix surface is formed with it is metallurgical binding
Coating.
Alloy powder particle is evenly distributed and in the coating substantially without scaling loss in 3rd step, so as to keep its original high
Hardness and high-wearing feature.
It is welded in 3rd step using argon gas, welding temperature is up to 18000k (about 1.77 ten thousand DEG C), coating layer thickness 2-
5mm。
Plasma melting coating process convenient for mechanization and automation, can realize that stable mass produces, not pollute substantially
Environment, the technique firing rate is fast, the thermal efficiency is high, and coating is high with substrate combinating strength, and coating ion concentration is high, so as to enhance base
The performance and quality of body.And it is low into local, cost is that the 1/2-1/3 of hard chrome cost, laser melting coating cost are electroplated under equal thickness
1/4.
Plasma arc surfacing plasma arc surfacing be using plasma arc high-temperature heating a kind of fusing overlaying method, wait from
Subarc heat is concentrated, extreme temperatures, and arc column central temperature reaches more than 24000K.Therefore, plasma arc surfacing has overlay cladding
Energy is good, bond strength is high, and overlay cladding compactness is good, and workpiece fusion penetration is shallow controllably, overlay cladding dilution rate is low, it is a series of to shape rule etc.
Advantage, and mechanization and automation are easily achieved, manual operations is also more convenient.It is a kind of rising heap welder
Skill,
At present, the crust breaking hammer of aluminum electrolytic tank is mostly mild steel, potassium steel or steel alloy material, high temperature resistant degree, resistance to
Corrosivity is poor, and service life is generally shorter (2-6 months), and tup rapid deterioration can make a large amount of iron and other elements enter aluminium
In liquid, molten aluminum quality is seriously affected.
" metal-based compound coating crust breaking hammer " of the invention has stronger Wear-resistant, high-temperature resistant corrosion resistance, meets oxidation
The work condition environment requirement of aluminium cell high-intensity magnetic field, high temperature, heavy current, high corrosion.Product hardness >=56, heatproof up to 1300 degree,
Service life 12-15 months；Product weight is light compared with the crust breaking hammer of same specification by 20%, and electrolytic cell driving energy is reduced during use
Consumption；Tup is small with electrolyte viscosity, avoids the formation of shell head bag, enables the timely return of cylinder, shortens tup and be immersed in electrolyte
In time, so as to reduce the burn-off rate of tup.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to foregoing each implementation
Technical solution recorded in example modifies or carries out equivalent substitution to which part technical characteristic；And these modification or
It replaces, the essence of appropriate technical solution is not made to depart from the spirit and scope of various embodiments of the present invention technical solution.
Claims (3)
1. a kind of metal-based compound coating crust breaking hammer, it is characterised in that：The first step, high-temperature-resistant and anti-corrosion metal-based compound coating powder
End is prepared, and powder size is 0.2-0.6mm；
Second step, crust breaking hammer matrix make：Round steel is sawn by specific length using sawing machine, numerically controlled lathe is set according to product specification
Machined parameters are processed further the round steel of preparatory processing, scale removal, greasy dirt and various mark marks；Specification is generally
Φ 75*300mm, Φ 90*320mm, Φ 90*340mm；
3rd step carries out crust breaking hammer matrix surface cladding processing using plasma surfacing technique：By the crust breaking hammer base of machine-shaping
Body one end is fixed on built-up welder turntable, will have been configured alloy powder and has been baked and banked up with earth 1-2h at a temperature of 150 DEG C, has been positioned in container,
Setting program on request, with continuous injection method on crust breaking hammer matrix cladding composite powder, through high-energy-density automatic welding, make
The sum of matrix surface melt and quickly solidify, so as to crust breaking hammer matrix surface formed with its for metallurgical binding face coat.
2. metal-based compound coating crust breaking hammer as described in claim 1, it is characterised in that：Alloy powder in 3rd step
Grain is evenly distributed and in the coating substantially without scaling loss, so as to keep its original high rigidity and high-wearing feature.
3. metal-based compound coating crust breaking hammer as described in claim 1, it is characterised in that：Argon arc welding is used in 3rd step
It connects, welding temperature is up to 18000k (about 1.77 ten thousand DEG C), coating layer thickness 2-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969598.9A CN108048878A (en) | 2017-10-18 | 2017-10-18 | A kind of metal-based compound coating crust breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969598.9A CN108048878A (en) | 2017-10-18 | 2017-10-18 | A kind of metal-based compound coating crust breaking hammer |
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| Publication Number | Publication Date |
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| CN108048878A true CN108048878A (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710969598.9A Pending CN108048878A (en) | 2017-10-18 | 2017-10-18 | A kind of metal-based compound coating crust breaking hammer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097770A (en) * | 2018-09-04 | 2018-12-28 | 中国铝业股份有限公司 | A kind of preparation method of crust-breaking chips used for aluminium electrolysis |
| CN113305501A (en) * | 2021-05-27 | 2021-08-27 | 中铝郑州有色金属研究院有限公司 | Repairing method of crust breaking hammer head for aluminum electrolysis |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190188Y (en) * | 2008-05-21 | 2009-02-04 | 马松林 | Crust breaking hammer for aluminum reduction cell |
| CN103014770A (en) * | 2012-12-12 | 2013-04-03 | 青铜峡铝业股份有限公司 | Manufacturing method of breaking hammer head for aluminum electrolysis cell |
-
2017
- 2017-10-18 CN CN201710969598.9A patent/CN108048878A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190188Y (en) * | 2008-05-21 | 2009-02-04 | 马松林 | Crust breaking hammer for aluminum reduction cell |
| CN103014770A (en) * | 2012-12-12 | 2013-04-03 | 青铜峡铝业股份有限公司 | Manufacturing method of breaking hammer head for aluminum electrolysis cell |
Non-Patent Citations (1)
| Title |
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| 建筑机械使用手册编写组: "《建筑机械使用手册第二版下册》", 31 May 1990, 中国建筑工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097770A (en) * | 2018-09-04 | 2018-12-28 | 中国铝业股份有限公司 | A kind of preparation method of crust-breaking chips used for aluminium electrolysis |
| CN113305501A (en) * | 2021-05-27 | 2021-08-27 | 中铝郑州有色金属研究院有限公司 | Repairing method of crust breaking hammer head for aluminum electrolysis |
| CN113305501B (en) * | 2021-05-27 | 2022-08-12 | 中铝郑州有色金属研究院有限公司 | Repairing method of crust breaking hammer head for aluminum electrolysis |
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Application publication date: 20180518 |
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