CN109338413A - The novel crust-breaking chips of electrolgtic aluminium and its manufacturing method - Google Patents

The novel crust-breaking chips of electrolgtic aluminium and its manufacturing method Download PDF

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Publication number
CN109338413A
CN109338413A CN201811344318.6A CN201811344318A CN109338413A CN 109338413 A CN109338413 A CN 109338413A CN 201811344318 A CN201811344318 A CN 201811344318A CN 109338413 A CN109338413 A CN 109338413A
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Prior art keywords
crust
breaking chips
novel
breaking
cylinder
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Inventor
王日昕
张林伟
付远
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Institute of Applied Physics of Jiangxi Academy of Sciences
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Institute of Applied Physics of Jiangxi Academy of Sciences
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/14Devices for feeding or crust breaking
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/07Alloys based on nickel or cobalt based on cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C24/00Coating starting from inorganic powder
    • C23C24/08Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides

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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)
  • Arc Welding In General (AREA)

Abstract

The present invention relates to crust-breaking chips technical fields, specifically disclose a kind of novel crust-breaking chips of electrolgtic aluminium and its manufacturing method.The crust-breaking chips of the novel crust-breaking chips of electrolgtic aluminium is the cylinder with hollow chamber, and being placed in the hollow chamber can move freely relative to the cylinder to strike the impact block of the cylinder bottom.Novel crust-breaking chips provided by the invention, crust-breaking chips is designed to hollow structure, and placing in hollow part being capable of free-moving impact block, crust-breaking chips is tapped by effect of inertia, so that crust-breaking chips vibrates, so that the electrolyte for being adhered to tup surface falls off, long packet phenomenon caused by the adherency of electrolyte is avoided, so as to improve the corrosion resistance of crust-breaking chips, extend tup service life.

Description

The novel crust-breaking chips of electrolgtic aluminium and its manufacturing method
Technical field
The present invention relates to crust-breaking chips technical field more particularly to a kind of novel crust-breaking chips of electrolgtic aluminium and its manufacturers Method.
Background technique
Electrolgtic aluminium crust-breaking chips works in the environment of high-intensity magnetic field, high temperature, heavy current for a long time.In electrolysis production process In, the purpose that electrolysis bath crust-breaking blanking system voluntarily acts is to be opened feed inlet using tup, and aluminium oxide is made to can smoothly enter into electricity Xie Zhizhong, and dissolve.For the material of crust-breaking chips based on structural carbon steel, wearability and corrosion resistance are poor at present;Simultaneously Due to structural carbon steel and electrolyte wettability, tup surface is easy to adherency electrolyte, " long packet " occurs and (is called " shell head " packet) phenomenon, it will lead to the decline of aluminum amount, and the workload of operative employee is caused to increase, influence the steady of electrolytic cell operation It is qualitative, the thermal balance of electrolytic cell, the adverse consequences such as initiationization furnace is helped, pot shell is rubescent can be also destroyed when serious.Therefore, current to beat Shell hammer usually needs operative employee to break the electrolyte of tup surface adhesion by hand, and the service life of crust-breaking chips is only 4~6 months, Maintenance and replacement frequently, are unfavorable for electrolytic cell heat preservation, electrolysis production cost can also be made to increase.Therefore, develop it is a kind of have compared with The crust-breaking chips of strong corrosion resistant, wearability and not viscous electrolyte has become the basic method to solve the above problems.
The patent of invention of Publication No. CN105839143A, which discloses a kind of crust breaking chips shell head and scrapes, cuts structure, has Body includes crust breaking cylinder, and the piston extension end of the crust breaking cylinder connects crust breaking hammer rod, the end setting of crust breaking hammer rod through connector The scraping cylinder being set on crust breaking hammer rod is fixedly mounted in the cylinder body end of crust breaking cylinder for crust-breaking chips, the scraping cylinder Scraping cylinder is fixedly connected on piston, scraper is arranged in the end of scraping cylinder, and when crust-breaking chips retraction, scraping cylinder piston is stretched Out, make scraper and crust-breaking chips relative motion and form scraping.But due to the scraper is during scraping, with electrolyte It contacts with each other, is easy that electrolyte is driven to cause equipment to corrode so that electrolyte is transferred to crust breaking hammer rod.
The patent of invention of Publication No. 107829039A discloses a kind of crust-breaking chips increasing material alloy material used for aluminium electrolysis, Component be according to the weight ratio 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.Although there is this increasing material alloy high abrasion, high rigidity and service life to reach 1.5 years, by Contain the hard phases such as tungsten carbide, titanium carbide in its raw material, and by way of powder sintered, laser melting coating or plasma cladding Directly by these hard phases at crust-breaking chips front end position, this processing method can not obtain the uniform alloy-layer of compactness, In use, in the electrolyte environment of high temperature spot corrosion, gap corruption occur for metallic binding phase and hard phase binding site Erosion, can not efficiently solve etching problem.
Summary of the invention
There is the problems such as gluing electrolyte and grow packet, corrosion-resistant and wear-resisting property is poor for existing crust-breaking chips, the present invention mentions For a kind of novel crust-breaking chips of electrolgtic aluminium.
Further, it is new also to provide the electrolgtic aluminium on the basis of above-mentioned electrolgtic aluminium novel crust-breaking chips by the present invention The manufacturing method of type crust-breaking chips.
To achieve the above object of the invention, present invention employs the following technical solutions:
A kind of novel crust-breaking chips of electrolgtic aluminium, the crust-breaking chips are the cylinder with hollow chamber, the hollow cavity Interior, which is placed with, can move freely relative to the cylinder to strike the impact block of the cylinder bottom.
Further, the present invention provides a kind of manufacturing method of the novel crust-breaking chips of electrolgtic aluminium, it is included in and casts Crust-breaking chips outer surface formed layer of surface strengthening layer the step of, built-up welding powder is welded in using plasma transferred arc built-up welding The crust-breaking chips surface forms layer of surface strengthening layer;
Wherein, it is 100% meter according to weight percentage, the built-up welding powder includes following components:
Rare earth oxide 0%~0.2%;
Co 45.8%~68%.
The invention has the benefit that
The novel crust-breaking chips of electrolgtic aluminium provided by the invention, is designed to hollow structure for crust-breaking chips, and hollow Position place can free-moving impact block, tap crust-breaking chips by effect of inertia so that crust-breaking chips vibrates, So that the electrolyte for being adhered to tup surface falls off, long packet phenomenon caused by the adherency of electrolyte is avoided, so as to The corrosion resistance of crust-breaking chips is improved, tup service life is extended.
The manufacturing method of the novel crust-breaking chips of electrolgtic aluminium of the present invention, carried out using metallic element simple substance as built-up welding powder etc. Ion-transfer arc built-up welding is free of WC, Cr2O3Equal hard phases, can in-situ preparation Cr, W, Co carbide, and by plasma Transferred arc built-up welding is strengthened, and the surface peening layer each component of acquisition is uniformly mixed, and bonding compactness is good, and Cr content compared with Height, the CrO of generation2Ceramic protective film is not easy to be bonded electrolyte, is not easy bulge, shows hardness is high, wearability is good etc. on the whole Feature, so that it is with longer service life.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is the novel crust-breaking chips schematic front view of electrolgtic aluminium of the present invention;
Fig. 2 is the novel crust-breaking chips schematic top plan view of electrolgtic aluminium of the present invention;
Fig. 3 is the schematic cross-sectional view of the novel crust-breaking chips of electrolgtic aluminium of the present invention line A-A along Fig. 2;
Fig. 4 is the cylindrical body of stainless steel that provides of the embodiment of the present invention 1 as the ANSYS mechanical simulation for striking block;
Fig. 5 is the ANSYS power that the novel crust-breaking chips of electrolgtic aluminium that the embodiment of the present invention 1 provides is tapped by body of stainless steel Learn simulation;
Fig. 6 is that the novel crust-breaking chips of electrolgtic aluminium that the embodiment of the present invention 1 provides taps the ANSYS mechanical simulation of moment;
Wherein, 1- crust-breaking chips, 11- hollow chamber, 12- through-hole, 13- surface peening layer;2- strikes block.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
Also referring to Fig. 1, Fig. 2, Fig. 3, now the novel crust-breaking chips of electrolgtic aluminium of the present invention is illustrated.
Fig. 1~3 are please referred to, the present invention provides a kind of novel crust-breaking chips of electrolgtic aluminium.
The main body of the novel crust-breaking chips 1 of the electrolgtic aluminium is a column structure, which is formed using forging type, material Material is still conventional common carbon structural steel, naturally it is also possible to other materials is used, it is internal with hollow chamber 11, and it is hollow Impact block 2 is placed in chamber 11, which is not fixed to each other with hollow chamber 11, and is independent from each other two Point, under effect of inertia, impact block 2 can be tapped crust-breaking chips 1 in hollow chamber 11, so that crust-breaking chips 1 is sent out Raw vibration, simulation worker hits 1 surface of crust-breaking chips, so that the electrolyte for being adhered to tup surface is fallen off.
Hollow chamber 11 of the invention is penetrated through by several through-holes 12 with extraneous, and the through-hole 12 setting is remote in crust-breaking chips 1 One end from contact electrolyte.Facilitate gas to flow by several through-holes 12, is conducive to the rapid cooling of crust-breaking chips 1, and A certain amount of lubriation material can also be injected into hollow chamber 11 by through-hole 12, impact block 2 is reduced and is transported inside tup When dynamic with the friction level of hollow chamber 11.
Above-mentioned column structure can be cylindrical body, be also possible to the column structure of other shapes, as long as realizing impact shell Face.
The design of such structure, during being mainly based upon tup strike shell surface, impact force accounting that gravity is contributed It is very low, therefore the crust-breaking chips with hollow chamber 11 is made, it will not influence the intensity of strike shell surface, but also gravity can be reduced The loss of acting.
Preferably, impact block 2 is any one of spherical stainless steel block, cylindrical piece of stainless steel.These types impact block Body 2 all has good intensity, and in shots, frictional dissipation is few, small to the damage of crust-breaking chips.Certainly, may be used To use the impact block 2 of other structures.
In order to further increase lift one's head front end wear-resisting property and corrosion resistance, one layer of table can also be formed in tup front end Surface strengthening layer 13.By the design of surface peening layer 13, the intensity of tup front end is improved, even if so that crust-breaking chips 1 is because of in Hollow structure and the thickness for reducing front end anti-wear component, nor affect on its wear-resisting property.
Preferably, the surface peening layer 13 includes generated in-situ Cr carbide, W carbide, Co carbide.Pass through In-situ preparation includes the surface peening layer 13 of Cr carbide, W carbide, Co carbide, has high rigidity, high-wearing feature and resistance to Electrolyte corrosion performance, and electrolyte not easy to stick further reduced electrolyte adherency in conjunction with the design of said hollow structure A possibility that, to improve the service life of crust-breaking chips 1.The crust-breaking chips 1 designed accordingly is suitable for aluminium cell Various models.
Preferably, surface peening layer 13 with a thickness of 1mm~2mm.Thickness is excessively thin, and to improving, wearability effect is unknown It is aobvious, and thickness is blocked up, difficulty of processing increases, and it is no longer obvious to promote effect to the humidification of crust-breaking chips 1.
Surface peening layer 13 of the invention is attached to tup front end face and cylinder outside wall surface, and surface peening layer 13 Height is at least up to 120mm, because, due to effect of inertia, tup part is often immersed in electrolyte layer when striking shell surface, The height of immersion reaches 120mm, and in order to avoid electrolyte is adhered on crust-breaking chips 1, best surfaces strengthening layer 13, which is adhered to, to be beaten The height on 1 surface of shell hammer reaches 120mm or more, entirely all can also form surface peening layer in 1 outer surface of crust-breaking chips 13。
The present invention still further provides the electrolgtic aluminium on the basis of the above-mentioned electrolgtic aluminium of offer novel crust-breaking chips The manufacturing method of novel crust-breaking chips.
In one embodiment, the manufacturing method of the novel crust-breaking chips of the electrolgtic aluminium, comprising the following steps:
Step S01, the crust-breaking chips cast is taken, which has hollow chamber, is placed in the hollow chamber Block is struck, surface cleaning processing is carried out to it, it is ensured that the clean surface of crust-breaking chips.
Step S02, built-up welding powder is welded in by the crust-breaking chips surface using plasma transferred arc built-up welding, forms one layer Surface peening layer;Wherein, it is 100% meter according to weight percentage, the built-up welding powder includes following components: Cr 25%~ 35%;W 4%~10%;Ni 1%~4%;Si 1%~3%;C 0.5%~2%;Rare earth oxide 0%~0.2%;Co 45.8%~68%.
Specifically, in step S02, the process of the plasma transferred arc built-up welding are as follows: the crust-breaking chips is preheated to 350 ~500 DEG C, then welding current is (160~250) A, powder sending quantity is (55~65) g/min, power is (2.5~3.5) Built-up welding is carried out under kVA, the technique that powder feeding carrier gas flux is (1~4) L/min.
The rare earth oxide is yttrium oxide, and yttrium oxide has good high temperature resistance, and can reduce tungsten alloy Grain size.
Surface peening layer to avoid the formation of cracks, it is preferable that after plasma transferred arc built-up welding, workpiece is put Enter Slow cooling in quartz sand, it is ensured that there is 6h~8h in cooling time.It is of course also possible to the Slow cooling in furnace, as long as it is cooled down Time reaches 6h~8h.
For plasma transferred arc built-up welding, the face of weld can also be processed, so that plasma transferred arc built-up welding effect It is more good.Specifically, turning can be carried out to the face of weld of crust-breaking chips, turning thickness is about 1mm~2mm, and Welding region and non-solder region form the transition region of 1.5mm~3mm, make its natural transition, namely in welding region and non-weldering It connects region and forms a natural transition.
The manufacturing method of the novel crust-breaking chips of electrolgtic aluminium of the present invention, carried out using metallic element simple substance as built-up welding powder etc. Ion-transfer arc built-up welding, due to being free of WC, Cr in built-up welding powder2O3Equal hard phases, in weld deposit process can in-situ preparation Cr, W, The carbide of Co, and strengthened by plasma transferred arc built-up welding, the surface peening layer each component of acquisition is uniformly mixed, and is glued It is good to tie compactness, and Cr content is higher, the CrO of generation2Ceramic protective film is not easy to be bonded electrolyte, is not easy bulge, whole On show the features such as hardness is high, wearability is good so that it is with longer service life.
Thus the novel crust-breaking chips of electrolgtic aluminium that manufacturing method obtains, service life can achieve 18~20 months, It is even longer.
The technical solution of the novel crust-breaking chips of the electrolgtic aluminium provided in order to better illustrate the present invention, below by implementation Example is further to be illustrated.
Embodiment 1
The novel crust-breaking chips of electrolgtic aluminium and its manufacturing method.
Wherein, as shown in figure 3, the novel crust-breaking chips 1 of the electrolgtic aluminium is a cylindrical structure, tool in the cylindrical structure There is hollow chamber 11, several through-holes 12, the outer wall of crust-breaking chips 1 are offered on wall body of the crust-breaking chips 1 far from tup front end There is surface peening layer 13 on body, there is the cylinder impact block 2 that can be freely moved in hollow chamber 11, which is The stainless steel of cylindrical body.
The manufacturing method of the electrolgtic aluminium crust-breaking chips is as follows:
(1) crust-breaking chips obtained to casting is surface-treated, so that its clean surface, and it is preheated to 400 DEG C.
(2) prepare the following built-up welding powder of weight percentage: Cr 30%;W 5%;Ni 3%;Si 2%; C 1.5%;Y2O30.2%;Co 58.3%.
(3) built-up welding powder is soldered to by crust-breaking chips surface using plasma transferred arc bead-welding technology, welding current is 200A, powder sending quantity 60g/min, power 3.0kVA, powder feeding carrier gas flux are 2L/min.
(4) crust-breaking chips will be obtained after welding to be placed in quartz sand, be completely covered, Slow cooling, after cooling 6h, take out, obtain To novel strike tup.
For the blow performance for the novel strike tup that verifying embodiment 1 obtains, mechanical simulation is carried out by ANSYS software, Analog result is as shown in figures 4-6.
From Fig. 4~6 it is found that using this kind of design structure, under cylinder acting, cylinder piston diameter is 160mm, cylinder Stroke 650mm, operating pressure are 0.1MPa~0.2MPa, to use cylindrical body of stainless steel as impact block, are made in inertia When with the lower percussion to crust-breaking chips, it can be clearly seen that body of stainless steel can achieve 9000N to the hitting power of tup, have very Good strike effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of novel crust-breaking chips of electrolgtic aluminium, which is characterized in that the crust-breaking chips is the cylinder with hollow chamber, institute Stating to be placed in hollow chamber can move freely relative to the cylinder to strike the impact block of the cylinder bottom.
2. the novel crust-breaking chips of electrolgtic aluminium as described in claim 1, which is characterized in that be also attached on the cylinder outer wall Layer of surface strengthening layer.
3. the novel crust-breaking chips of electrolgtic aluminium as claimed in claim 2, which is characterized in that the surface peening layer includes in situ Cr carbide, W carbide, the Co carbide of generation.
4. such as the novel crust-breaking chips of the described in any item electrolgtic aluminiums of claim 1~2, which is characterized in that in the cylinder wall It offers to realize hollow chamber's several through-holes connected with the outside world.
5. the novel crust-breaking chips of electrolgtic aluminium as described in claim 1, which is characterized in that the impact block is spherical stainless Any one of bloom, cylindrical piece of stainless steel.
6. a kind of manufacturing method of the novel crust-breaking chips of electrolgtic aluminium, including forming one layer in the crust-breaking chips outer surface cast The step of surface peening layer, which is characterized in that built-up welding powder is welded in by the crust-breaking chips using plasma transferred arc built-up welding Surface forms layer of surface strengthening layer;
Wherein, it is 100% meter according to weight percentage, the built-up welding powder includes following components:
7. the manufacturing method of the novel crust-breaking chips of electrolgtic aluminium as claimed in claim 6, which is characterized in that the plasma turns Move arc built-up welding process are as follows: the crust-breaking chips is preheated to 350 DEG C~500 DEG C, then welding current be 160A~250A, Under the technique that powder sending quantity is (55~65) g/min, power is (2.5~3.5) kVA, powder feeding carrier gas flux is (1~4) L/min into Row built-up welding.
8. the manufacturing method of the novel crust-breaking chips of electrolgtic aluminium as claimed in claim 6, which is characterized in that further include that will be formed The surface peening be placed on the process of slow cooling in quartz sand or furnace, slow cooling time control is 6h~8h.
9. the manufacturing method of the novel crust-breaking chips of electrolgtic aluminium as claimed in claim 6, which is characterized in that the surface peening Layer with a thickness of 1mm~2mm.
10. the manufacturing method of the novel crust-breaking chips of electrolgtic aluminium as claimed in claim 6, which is characterized in that the crust breaking hammer Head has the cylinder of hollow chamber, and being placed in the hollow chamber can move freely relative to the cylinder to strike the column The impact block of body bottom.
CN201811344318.6A 2018-11-13 2018-11-13 The novel crust-breaking chips of electrolgtic aluminium and its manufacturing method Pending CN109338413A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158118A (en) * 2019-05-17 2019-08-23 中国铝业股份有限公司 A kind of hollow wear-and corrosion-resistant crust-breaking chips used for aluminium electrolysis and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2582820Y (en) * 2002-11-28 2003-10-29 邱进军 Combined hammer
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
CN107829039A (en) * 2017-09-26 2018-03-23 宁国市恒铸新型材料科技有限公司 A kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips surface increase the moulding process of material
CN209652448U (en) * 2018-11-13 2019-11-19 江西省科学院应用物理研究所 The novel crust-breaking chips of electrolgtic aluminium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2582820Y (en) * 2002-11-28 2003-10-29 邱进军 Combined hammer
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
CN107829039A (en) * 2017-09-26 2018-03-23 宁国市恒铸新型材料科技有限公司 A kind of crust beating hammer for aluminium electrolysis alloy material and new crust-breaking chips surface increase the moulding process of material
CN209652448U (en) * 2018-11-13 2019-11-19 江西省科学院应用物理研究所 The novel crust-breaking chips of electrolgtic aluminium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158118A (en) * 2019-05-17 2019-08-23 中国铝业股份有限公司 A kind of hollow wear-and corrosion-resistant crust-breaking chips used for aluminium electrolysis and preparation method thereof

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