CN112442710A - Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof - Google Patents
Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof Download PDFInfo
- Publication number
- CN112442710A CN112442710A CN202011230887.5A CN202011230887A CN112442710A CN 112442710 A CN112442710 A CN 112442710A CN 202011230887 A CN202011230887 A CN 202011230887A CN 112442710 A CN112442710 A CN 112442710A
- Authority
- CN
- China
- Prior art keywords
- claw
- nickel
- welded
- cross beam
- aluminum electrolysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Arc Welding In General (AREA)
Abstract
An aluminum electrolysis anode anticorrosion steel claw comprises a cross beam (2), an explosion block welding boss (3) welded at the top of the middle of the cross beam, and 4 vertical claw feet (1) uniformly welded on the bottom surface of the cross beam, wherein a nickel-chromium alloy layer (4) is welded on the surface of each claw foot; the nickel-chromium alloy layer is formed by welding an alloy welding rod containing nickel and chromium. The invention can greatly prolong the service life of the aluminum electrolysis anode steel claw, improve the quality of aluminum liquid and reduce the production cost.
Description
Technical Field
The invention belongs to the technical field of anodes for aluminum electrolysis.
Background
In the aluminum electrolysis production process, the anode is one of the most important raw materials and consists of four parts, namely an aluminum guide rod, a steel claw, an explosion block and a carbon block. In the electrolytic aluminum production process, the high temperature causes the oxidation and corrosion of the steel claw feet. The diameter of the steel claw foot is 140mm, and the whole steel claw is scrapped when the diameter of a single claw foot is lower than 70 mm. The tracking measurement shows that the claw foot of the steel claw consumes 5 mm-7 mm of diameter in one period (35 days), and the service period of a new steel claw is 8-10 months. In order to improve the quality of the aluminum liquid and reduce the production cost, an aluminum electrolysis anode anti-corrosion steel claw is needed to be designed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide the aluminum electrolysis anode anticorrosion steel claw with good anticorrosion performance and long service life.
The purpose of the invention is realized by the following technical scheme:
an aluminum electrolysis anode anticorrosion steel claw comprises a cross beam (2), an explosion block welding boss (3) welded at the top of the middle of the cross beam, and 4 vertical claw feet (1) uniformly welded on the bottom surface of the cross beam, wherein a nickel-chromium alloy layer (4) is welded on the surface of each claw foot; the nickel-chromium alloy layer is formed by welding an alloy welding rod containing nickel and chromium. When the nickel-chromium alloy welding rod is used for welding and coating, a high-temperature-resistant and corrosion-resistant austenitic chromium-nickel stainless steel coating can be formed on the surface of the claw foot of the steel claw, and the austenitic chromium-nickel stainless steel has good oxidation resistance and corrosion resistance, and can continuously work at high temperature due to high percentage of chromium and nickel, so that the austenitic chromium-nickel stainless steel has good high-temperature resistance. The nickel-chromium alloy coating layer is not corroded in the aluminum electrolysis use of the prior art, the quality of each welded claw foot coated with the nickel-chromium alloy coating layer is strictly checked, the nickel-chromium alloy coating layer is not allowed to be welded at a welding leakage position, and if the welding leakage position exists, the claw foot is corroded by high-temperature oxidation from the welding leakage position.
According to the invention, the nickel-chromium alloy layer is welded on the surface of each claw foot, so that the alloy layer with high temperature resistance and corrosion resistance is formed on the surface of each claw foot, and the claw foot is greatly prevented from being corroded. The comparison test proves that after the steel claw foot welded with the nickel-chromium alloy layer is used for one period (35 days), the phenomena of high-temperature oxidation and corrosion do not occur, and the steel claw foot of the prior art which is not welded with the nickel-chromium alloy layer is oxidized and corroded at high temperature, so that the outer diameter is reduced by 7 mm. The invention can prolong the service life of the steel claw, reduce the production cost, reduce the corrosive components of the claw foot entering the aluminum liquid, improve the quality of the aluminum liquid and have good popularization and application prospects.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
As shown in fig. 1 and 2, the aluminum electrolysis anode anticorrosion steel claw comprises a cross beam 2, an explosion block welding boss 3 welded at the top of the middle of the cross beam, and 4 vertical claw feet 1 uniformly welded on the bottom surface of the cross beam. The claw foot 1 is a part of a steel claw which can be oxidized and corroded by high temperature in the using process, and the surface of each claw foot is welded with a nickel-chromium alloy layer 4. The nickel-chromium alloy layer is formed by welding alloy welding rods containing nickel and chromium, the alloy welding rods containing nickel and chromium are directly purchased from the market, and the welding coating is a skill possessed by ordinary technicians in the field.
The invention only needs to weld a nichrome layer on the surface of the claw foot of the aluminum electrolysis anode steel claw in the prior art, has low manufacturing cost, can greatly prolong the service life of the aluminum electrolysis anode steel claw, improves the quality of aluminum liquid and reduces the production cost.
Claims (1)
1. An aluminum electrolysis anode anticorrosion steel claw is characterized by comprising a cross beam (2), an explosion block welding boss (3) welded at the top of the middle of the cross beam, and 4 vertical claw feet (1) uniformly welded on the bottom surface of the cross beam, wherein a nichrome layer (4) is welded on the surface of each claw foot; the nickel-chromium alloy layer is formed by welding an alloy welding rod containing nickel and chromium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011230887.5A CN112442710A (en) | 2020-11-06 | 2020-11-06 | Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011230887.5A CN112442710A (en) | 2020-11-06 | 2020-11-06 | Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112442710A true CN112442710A (en) | 2021-03-05 |
Family
ID=74735853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011230887.5A Pending CN112442710A (en) | 2020-11-06 | 2020-11-06 | Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112442710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116219324A (en) * | 2023-01-13 | 2023-06-06 | 中铝郑州有色金属研究院有限公司 | Steel claw for aluminum electrolysis and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1255210A (en) * | 1960-04-20 | 1961-03-03 | Eaton Mfg Co | Metal surface coating and method of applying this coating |
| US5154813A (en) * | 1991-06-10 | 1992-10-13 | Dill Raymond J | Protective coating of stub ends in anode assemblies |
| CN105839142A (en) * | 2016-05-27 | 2016-08-10 | 郑州斯迪新材料有限公司 | Anode steel claw for aluminum electrolysis cell and manufacture method for anode steel claw |
| CN205774824U (en) * | 2016-05-27 | 2016-12-07 | 郑州斯迪新材料有限公司 | Aluminum electrolyzing cell used anode steel claw |
| CN208815134U (en) * | 2018-09-30 | 2019-05-03 | 湖南博溥立材料科技有限公司 | A kind of aluminium cell anode |
-
2020
- 2020-11-06 CN CN202011230887.5A patent/CN112442710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1255210A (en) * | 1960-04-20 | 1961-03-03 | Eaton Mfg Co | Metal surface coating and method of applying this coating |
| US5154813A (en) * | 1991-06-10 | 1992-10-13 | Dill Raymond J | Protective coating of stub ends in anode assemblies |
| CN105839142A (en) * | 2016-05-27 | 2016-08-10 | 郑州斯迪新材料有限公司 | Anode steel claw for aluminum electrolysis cell and manufacture method for anode steel claw |
| CN205774824U (en) * | 2016-05-27 | 2016-12-07 | 郑州斯迪新材料有限公司 | Aluminum electrolyzing cell used anode steel claw |
| CN208815134U (en) * | 2018-09-30 | 2019-05-03 | 湖南博溥立材料科技有限公司 | A kind of aluminium cell anode |
Non-Patent Citations (2)
| Title |
|---|
| 张志强: "改善阳极钢爪性能、提高预焙铝电解槽综合经济效益", 《轻金属》 * |
| 张金梁等: "铝电解阳极钢爪腐蚀及防腐技术", 《轻金属》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116219324A (en) * | 2023-01-13 | 2023-06-06 | 中铝郑州有色金属研究院有限公司 | Steel claw for aluminum electrolysis and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109930147B (en) | Lead bipolar plate and preparation method thereof | |
| CN103752998B (en) | A kind of high-weather-resistamulti-wire multi-wire submerged-arc welded steel pipes for marine environments preparation method | |
| CN112442710A (en) | Aluminum electrolysis anode anticorrosion steel claw and preparation method thereof | |
| CN102794579A (en) | Anti-corrosion welding rod for constructing cargo-oil tanks of tank ships | |
| CN1189259C (en) | Manufacture of bimetallic composite pipe | |
| CN103982142A (en) | Electroplated amorphous state nickel-based alloy corrosion-resistant wear-resistant oil pipe | |
| KR950011315B1 (en) | Welded tube with excellent corrosion-risistant inner sartace and method of producing the same | |
| CN102021620B (en) | Method for carrying out chrome-nickel alloying treatment on steel surface of oil casing pipe | |
| CN2887892Y (en) | Anti-corrosion cathode plate and anode plate for electrolysis of zinc by wet method | |
| CN201559048U (en) | Titanium tube sheet seal surface sealing ring replacing clamp | |
| CN2547988Y (en) | Bimetallic multiple-unit tube | |
| Ioka et al. | Study of container using hybrid technique for sulfuric acid decomposition of thermochemical water-splitting iodine-sulfur process | |
| CN106890993B (en) | A kind of super corrosion resisting stainless steel powder and its apply and methods for using them | |
| CN221121437U (en) | High-temperature-resistant corrosion-resistant seal head | |
| CN101592530A (en) | The thermocouple protective casing of liquid zinc corrosion resistant | |
| CN212455657U (en) | Foot valve with valve seat having corrosion resistance function | |
| CN202041101U (en) | Local surfacing air cooler device of pipe box | |
| CN112126919A (en) | Passivation method of aluminum hexavalent chromium passivator | |
| CN1175123C (en) | Stainless steel filling material for tower use | |
| CN210595041U (en) | Hydraulic jack guide sleeve made of composite metal material | |
| CN215293922U (en) | Stainless steel composite spiral welded pipe | |
| CN204902905U (en) | Your metal electrode | |
| CN116200628A (en) | Ductile iron corrosion-resistant alloy layer and preparation method thereof | |
| CN206000779U (en) | Pump for liquid salts combination type blade wheel | |
| CN205347576U (en) | Prevent that naphthenic acid corrodes thermocouple sleeve pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210305 |
|
| WD01 | Invention patent application deemed withdrawn after publication |