CN115401401A - Method for repairing and prolonging service life of anode plate for zinc electrodeposition - Google Patents
Method for repairing and prolonging service life of anode plate for zinc electrodeposition Download PDFInfo
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- CN115401401A CN115401401A CN202211200402.7A CN202211200402A CN115401401A CN 115401401 A CN115401401 A CN 115401401A CN 202211200402 A CN202211200402 A CN 202211200402A CN 115401401 A CN115401401 A CN 115401401A
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- anode plate
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000011701 zinc Substances 0.000 title claims abstract description 26
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 25
- 238000004070 electrodeposition Methods 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000005498 polishing Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010009 beating Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000009966 trimming Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 206010027439 Metal poisoning Diseases 0.000 description 3
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 3
- 208000008127 lead poisoning Diseases 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 229910003800 Sr-Ag Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical compound [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910017980 Ag—Sn Inorganic materials 0.000 description 1
- 229910014474 Ca-Sn Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910003522 Sr-Sn Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- 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
- B23K5/00—Gas flame welding
- B23K5/006—Gas flame welding specially adapted for particular articles or work
-
- 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
- B23K5/00—Gas flame welding
- B23K5/213—Preliminary treatment
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a method for repairing and prolonging the service life of an anode plate for zinc electrodeposition. The invention relates to a hole anode plate produced in the process of zinc electrodeposition repaired by adopting a lead gas welding process, which comprises the following steps: cleaning the anode plate surface with corroded holes and trimming the holes into regular squares or rectangles; cutting a plate made of the same material as the anode plate surface into patches with shapes similar to the holes by using an electric tool; welding the patch with the front and back surfaces of the hole plate by using a flat welding process; slightly knocking the welding line by a mallet to eliminate welding stress; and polishing the welding line by using a polishing machine to make the welding line smooth. According to the method provided by the invention, the anode plate to be scrapped is reasonably recycled by the simplest processing technology and the lowest processing cost while the performance stability of the anode plate is ensured, the service life of the anode plate is obviously prolonged, and the economic benefit of an enterprise is increased; other impurities are not introduced in the process, and the future recycling of the polar plate is not influenced.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a method for repairing and prolonging the service life of an anode plate for zinc electrodeposition.
Background
At present, zinc wet-process electrodeposition anodes in industry are most widely applied to Pb-Ag (0.5 to 1wt.%), lead-based multi-element anodes such as ternary Pb-based alloy anodes of Pb-Ag-Ca, pb-Ag-Ti, pb-Ag-Sn, pb-Sr-Sn and Pb-Ca-Sn, and quaternary Pb-based alloy anodes of Pb-Ca-Sr-Ag, pb-Ca-Ce-Ag and the like. The anode has the advantages of simple manufacturing process, long service life and the like, but if the temperature is high and the casting speed is high when the lead alloy billet is cast, or shrinkage cavities, slag inclusions and segregation of metamorphic elements (Ag, ca, sr, cu and the like) are formed in the billet, or the electrolyte has high impurities and cl - When the concentration is more than 500mg/l, or when the anode plate and the cathode plate are contacted to cause the local temperature of the anode plate to rise (more than 50 ℃), the electrode plate can be deformed and corroded, and holes are generated. According to statistics, under the conditions, the holes appear in a large number of polar plates in 9 and 10 months if the polar plates are light and in 2 and 3 months if the polar plates are heavy, if the polar plates are continuously used, the plate surfaces around the holes become thinner gradually, and then the holes are enlarged to be scrapped. Data of a certain factory show that after a new anode plate is used for 2 months, the anode plate is obviously corroded, the current efficiency is reduced to 85.23% from 91.65% when the anode plate is continuously used, the direct current power consumption is increased by 299.30kwh/t.Zn, and the lead content of zinc is obviously increased; the scrapping of the plate leads to the annual consumption of the anode plate exceeding 20000 plates and the loss value exceeding 2 thousandTen thousand yuan. Along with the decline of resource grade, mineral compositions are gradually complicated, the concentration of fluorine and chlorine in a zinc system is gradually increased, the adverse effect of the fluorine and chlorine on the performance of a lead anode plate is gradually highlighted, and the industry is widely concerned. Therefore, it is necessary to develop a method capable of solving the above problems.
Disclosure of Invention
The invention aims to provide a method for repairing and prolonging the service life of an anode plate for electrodeposition.
The invention aims to realize the purpose, the method for prolonging the service life of the anode plate for zinc electrodeposition comprises the steps of pretreatment, welding, stress relief and post-treatment, and specifically comprises the following steps:
A. pretreatment:
1) Scraping an oxide layer at the joint part of an anode plate for zinc electrodeposition to be treated, and performing correction cutting on the periphery of a generated hole;
2) Cutting a plate made of the same material as the anode plate into a shape corresponding to the corrected hole to obtain a patch a for later use;
B. welding: carrying out butt welding by using neutral flame or partial reducing flame;
C. and (3) stress relief: eliminating welding stress in a beating mode;
D. and (3) post-treatment: and polishing with a polishing machine to smooth the welding seam.
The operation is as follows:
a. cleaning: except for the general cleaning work, the oxide layer on the surface of the joint part needs to be scraped until the natural color of the lead metal is exposed. The eroded irregularities around the hole can be cut by a power tool to form a regular rectangle or square.
b. Preparing materials: and cutting the plate made of the same material as the anode plate into a shape close to the hole by using an electric tool.
c. Welding: and (c) adopting flat welding, knocking the patch prepared in the step (b) into the hole cleaned in the step (a) by using a mallet, and adjusting until the surface of the patch is flat. The outer edge of the flame core is about 2mm away from the weldment, and the flame mainly faces the lower interface to ensure that the flame core is melted through. After the welding seam is basically formed, the welding flame is used for swinging left and right on the welding seam to remelt the surface of the welding seam, and the melting range exceeds about 1/2 of the width of the welding seam so as to eliminate the defects of air holes, slag inclusion and the like which are possibly generated. And turning over and repeating the welding step.
d. And (3) stress relief: and (c) because the lead has strong plastic deformation capability and is easy to loose and deform after welding, and the welding stress can be eliminated by lightly tapping the welding line in the step c by using a mallet.
e. Polishing: and d, polishing by using a polishing machine after the step d is finished, so that the welding seam is smooth.
In the step c, the heat source can be oxyhydrogen flame and oxyacetylene flame, and normal neutral flame or slightly reducing flame is used, and oxidizing flame is avoided.
And c, selecting the welding wire with the same material as the base metal in the step.
And c, selecting a welding tip number of 2~3 and a flame length of 90-110mm.
and (e) paying attention to safety protection in the steps a-e, wearing labor protection articles, keeping ventilation and preventing lead poisoning.
The specific operation is as follows:
(1) Anode mud on the surface of the anode plate to be repaired is removed, and an oxide layer on the surface of the joint part is cleaned;
(2) Cutting and trimming the corroded staggered parts around the holes to form regular rectangles or squares;
(3) Leveling the plate surface, and then horizontally placing the plate surface on an operation table;
(4) Cutting a plate made of the same material as the anode plate into a shape similar to the hole by using an electric tool;
(5) Knocking the prepared repairing material into the cleaned holes by a mallet, and adjusting the surface of the board to be flat;
(6) Welding is carried out on an operating platform, the outer edge of the flame core is about 2mm away from the weldment, and the flame mainly faces the lower interface to enable the lower interface to be melted through. After the welding seam is basically formed, the welding flame swings left and right on the welding seam to remelt the surface of the welding seam, and the melting range exceeds about 1/2 of the width of the welding seam so as to eliminate the defects of air holes, slag inclusion and the like which are possibly generated;
(7) Turning and repeating the welding step;
(8) Slightly knocking the welding line by a mallet to eliminate welding stress;
(9) And polishing the welding line by using a polishing machine to make the welding line smooth.
In the above treatment method, preferably, the heat source can be oxyhydrogen flame and oxyacetylene flame, the former flame has low temperature, is easy to control, and has ideal welding effect. Normal neutral flame or slightly reducing flame is used, and oxidizing flame is avoided.
In the above-described processing method, it is preferable that the welding wire is made of the same material as the base material.
In the above treatment method, the number of the welding tip is 2~3, and the flame length is 90 to 110mm.
The above treatment method, preferably, should be safe, wear the labor protection product, keep ventilation, and prevent lead poisoning.
The invention adopts a lead gas welding process to repair a hole anode plate generated in a zinc electrodeposition process, and the steps comprise: cleaning the anode plate surface with corroded holes and trimming the holes into regular squares or rectangles; cutting a plate made of the same material as the anode plate surface into patches with shapes similar to the holes by using an electric tool; welding the patch with the front and back surfaces of the hole plate by using a flat welding process; slightly knocking the welding line by a wooden mallet to eliminate welding stress; and polishing the welding line by using a polishing machine to make the welding line smooth. According to the method provided by the invention, the anode plate to be scrapped is reasonably recycled by the simplest processing technology and the lowest processing cost while the performance stability of the anode plate is ensured, the service life of the anode plate is obviously prolonged, and the economic benefit of an enterprise is increased; other impurities are not introduced in the process, and the future recycling of the polar plate is not influenced.
The invention has the beneficial effects that:
the hole anode plate produced in the zinc electrodeposition process is repaired by adopting a lead gas welding process, the product has good appearance quality, less internal defects and low production cost, and the adopted welding wires and patches are made of the same material as the base material, so that the service performance of the anode plate is not influenced, and the final recycling of the anode plate is not influenced. The scrapped polar plate is recycled, so that the service life is prolonged, the production index is optimized, and the production cost is greatly reduced.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The method for prolonging the service life of the anode plate for zinc electrodeposition comprises the steps of pretreatment, welding, stress relief and post-treatment, and specifically comprises the following steps:
A. pretreatment:
1) Scraping an oxide layer at the joint part of the anode plate for zinc electrodeposition to be treated, and performing correction cutting on the periphery of a generated hole;
2) Cutting a plate made of the same material as the anode plate into a shape corresponding to the corrected hole to obtain a patch a for later use;
B. welding: carrying out butt welding by using neutral flame or partial reducing flame;
C. and (3) stress relief: eliminating welding stress in a beating mode;
D. and (3) post-treatment: and polishing with a polishing machine to smooth the welding seam.
And B, the welding is to place the patch a into the hole, adjust the surface of the hole to be flat and weld the outer edge of the flame core 1-3mm away from the weldment.
The welding wire for welding is made of the same material as the anode plate.
The number of the welding tip selected by welding is 2~3.
The flame length of the welding is 90 to 110mm.
And C, knocking by adopting a mallet.
The invention is further illustrated by the following specific examples:
the method for repairing and prolonging the service life of the anode plate for zinc electrodeposition adopted in the following embodiment is as follows:
a. cleaning: except for the general cleaning work, the oxide layer on the surface of the joint part needs to be scraped until the natural color of the lead metal is exposed. The eroded irregularities around the hole can be cut with a power tool to form a regular rectangle or square.
b. Preparing materials: and cutting the plate made of the same material as the anode plate into a shape similar to the hole by using an electric tool.
c. Welding: and (c) adopting flat welding, knocking the patch prepared in the step (b) into the hole cleaned in the step (a) by using a mallet, and adjusting until the surface of the patch is flat. The outer edge of the flame core is about 2mm away from the weldment, and the flame mainly faces the lower interface to ensure that the flame core is melted through. After the welding seam is basically formed, the welding flame is used for swinging left and right on the welding seam to remelt the surface of the welding seam, and the melting range exceeds about 1/2 of the width of the welding seam so as to eliminate the defects of air holes, slag inclusion and the like which are possibly generated. And turning over and repeating the welding step.
d. And (3) stress relief: and (c) because the lead has strong plastic deformation capability and is easy to loose and deform after welding, and the welding stress can be eliminated by lightly tapping the welding line in the step c by using a mallet.
In the step c, the heat source can be oxyhydrogen flame and oxyacetylene flame, and the heat source can be normal neutral flame or slightly reducing flame, and is not used for oxidizing flame.
And c, selecting the welding wire with the same material as the base metal in the step.
And c, selecting a welding tip number of 2~3 and a flame length of 90-110mm.
and (e) paying attention to safety protection in the steps a-e, wearing labor protection articles, keeping ventilation and preventing lead poisoning.
Example 1
The anode plate used in a certain zinc plant is 1.2m 2 Lead-silver anode plate with electrolysis period of 24h and current density of 450A/m 2 . Due to the fluctuation of the raw material, the electrolyte impurities rise, wherein cl - The concentration is more than 1000mg/l once. The new anode plate of the plant is used for only 4 months, holes with the diameter of 60 to 100mm appear on the plate surface, and thus the anode plate loss of the plant is more than 5 times of the original anode plate loss.
The patch is repaired by adopting the steps of the invention, and the size of the patch is about 60x80mm by taking one of the patches as an example. Putting the repaired polar plate into production, and then, adding the electrolyte cl - The concentration is reduced, the electrolytic cell is used for 11.5 months under the normal electrolysis working condition, and the service life is prolonged to 3.9 times of the original service life.
Example 2
The anode plate used for industrial production of zinc by a certain company is 1.6m 2 Lead-silver anode plate with electrolysis period of 24h and current density of 450A/m 2 The electrolyte composition is within the normal control range. Because of improper operation of operators, the short circuit of the anode and the cathode occurs in the new plate, and the anode plate has holes after 6 months of use.
The steps of the invention are adopted for repairing, taking one of the blocks as an example, 2 holes are repaired on the middle part and the upper part of the same board surface, and the sizes of patches are respectively about 60x60mm and 70x70mm. The repaired polar plate is put into production and used for 12.5 months, and the service life is prolonged to 3.1 times of the original service life.
Example 3
The anode plate used in industrial production of zinc in a certain factory is 1.2m 2 The anode plate of Pb-Ca-Sr-Ag has an electrolysis period of 24h and a current density of 500A/m 2 The electrolyte composition is within the normal control range. Because of improper operation of operators, the short circuit condition of the cathode and the anode occurs in the new plate, and the anode plate has holes after 5 months of use.
By adopting the steps of the invention, 30 hole anode plates are repaired, and each plate is provided with 1~2 patches. The repaired polar plate is put into production, wherein 11 blocks are used for 10 months, 10 blocks are used for 11 months, 5 blocks are used for 12 months, 4 blocks are used for 12.5 months, and the average service life is prolonged to 3.2 times of the original service life.
Claims (6)
1. The method for repairing and prolonging the service life of the anode plate for zinc electrodeposition is characterized by comprising the steps of pretreatment, welding, stress relief and aftertreatment, and specifically comprises the following steps:
A. pretreatment:
1) Scraping an oxide layer at the joint part of the anode plate for zinc electrodeposition to be treated, and performing correction cutting on the periphery of a generated hole;
2) Cutting a plate made of the same material as the anode plate into a shape corresponding to the corrected hole to obtain a patch a for later use;
B. welding: carrying out butt welding by using neutral flame or partial reducing flame;
C. and (3) stress relief: eliminating welding stress in a beating mode;
D. and (3) post-treatment: and polishing with a polishing machine to smooth the welding seam.
2. The method for repairing and prolonging the service life of the anode plate for zinc electrodeposition as claimed in claim 1, wherein the welding in the step B is to put the patch a into the hole, adjust the surface of the hole to be flat and weld the outer edge of the flame core 1-3 mm away from the weldment.
3. The method for repairing and prolonging the service life of the anode plate for zinc electrodeposition as claimed in claim 1 or 2, wherein the welding wire for welding is a welding wire made of the same material as the anode plate.
4. The method for repairing and extending the service life of an anode plate for zinc electrodeposition as claimed in claim 1 or 2, wherein the selected welding tip number is 2~3.
5. The method for repairing and prolonging the service life of the anode plate for zinc electrodeposition as claimed in claim 1 or 2, wherein the flame length of the welding is 90 to 110mm.
6. The method for repairing and prolonging the service life of the anode plate for zinc electrodeposition as claimed in claim 1, wherein the striking manner in the step C is striking with a mallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211200402.7A CN115401401A (en) | 2022-09-29 | 2022-09-29 | Method for repairing and prolonging service life of anode plate for zinc electrodeposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211200402.7A CN115401401A (en) | 2022-09-29 | 2022-09-29 | Method for repairing and prolonging service life of anode plate for zinc electrodeposition |
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| Publication Number | Publication Date |
|---|---|
| CN115401401A true CN115401401A (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211200402.7A Pending CN115401401A (en) | 2022-09-29 | 2022-09-29 | Method for repairing and prolonging service life of anode plate for zinc electrodeposition |
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| CN (1) | CN115401401A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940328A (en) * | 1974-04-11 | 1976-02-24 | Electronor Corporation | Reconstructed or repaired electrode structure |
| US4154667A (en) * | 1978-01-03 | 1979-05-15 | Diamond Shamrock Corporation | Method of converting box anodes to expandable anodes |
| CN201553783U (en) * | 2009-08-25 | 2010-08-18 | 洪腾生 | Water welding machine |
| CN103706974A (en) * | 2013-12-02 | 2014-04-09 | 唐雅蓉 | Patching welding repair process for automobile frame |
| CN106521562A (en) * | 2016-09-30 | 2017-03-22 | 云南铜业股份有限公司 | Recovery method of copper electrolysis permanent stainless steel cathode |
| CN107570958A (en) * | 2017-09-28 | 2018-01-12 | 楚雄滇中有色金属有限责任公司 | A kind of processing restorative procedure of copper anode plate mould |
| CN207124257U (en) * | 2017-06-20 | 2018-03-20 | 天能电池集团有限公司 | A kind of device for repairing chloride plate lug |
-
2022
- 2022-09-29 CN CN202211200402.7A patent/CN115401401A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940328A (en) * | 1974-04-11 | 1976-02-24 | Electronor Corporation | Reconstructed or repaired electrode structure |
| US4154667A (en) * | 1978-01-03 | 1979-05-15 | Diamond Shamrock Corporation | Method of converting box anodes to expandable anodes |
| CN201553783U (en) * | 2009-08-25 | 2010-08-18 | 洪腾生 | Water welding machine |
| CN103706974A (en) * | 2013-12-02 | 2014-04-09 | 唐雅蓉 | Patching welding repair process for automobile frame |
| CN106521562A (en) * | 2016-09-30 | 2017-03-22 | 云南铜业股份有限公司 | Recovery method of copper electrolysis permanent stainless steel cathode |
| CN207124257U (en) * | 2017-06-20 | 2018-03-20 | 天能电池集团有限公司 | A kind of device for repairing chloride plate lug |
| CN107570958A (en) * | 2017-09-28 | 2018-01-12 | 楚雄滇中有色金属有限责任公司 | A kind of processing restorative procedure of copper anode plate mould |
Non-Patent Citations (2)
| Title |
|---|
| 张喜涛, 毛正孝, 陈建平: "离子膜电解槽的维护", 氯碱工业, no. 12, pages 25 * |
| 张喜涛;毛正孝;陈建平;: "离子膜电解槽修理探讨", 甘肃化工, no. 04 * |
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