CN110978379A - Method for manufacturing sedimentation type anti-corrosion plastic of electrolytic zinc cathode plate - Google Patents
Method for manufacturing sedimentation type anti-corrosion plastic of electrolytic zinc cathode plate Download PDFInfo
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- CN110978379A CN110978379A CN201911258912.8A CN201911258912A CN110978379A CN 110978379 A CN110978379 A CN 110978379A CN 201911258912 A CN201911258912 A CN 201911258912A CN 110978379 A CN110978379 A CN 110978379A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Prevention Of Electric Corrosion (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention relates to the technical field of electrolytic zinc cathode plates, in particular to a method for manufacturing sedimentation type anticorrosive plastic of an electrolytic zinc cathode plate, which comprises the steps of respectively punching a single row of holes on two vertical edges of the cathode plate through an oil press and a die, punching three rows of holes in the area of a liquid level line above the cathode plate, punching a plum blossom-shaped zinc peeling opening near the liquid level line, then pressing the areas of the three rows of holes and the zinc peeling opening into a double-sided groove, and finally performing double-sided injection molding on the double-sided groove through an injection molding machine and an injection molding die at one time to form a plastic anticorrosive layer.
Description
Technical Field
The invention relates to the technical field of electrolytic zinc cathode plates, in particular to a method for manufacturing sedimentation type anticorrosive plastic of an electrolytic zinc cathode plate.
Background
The corrosion prevention of the electro-zinc cathode plate generally comprises 2, 3, 4 and 4 vertical edge parts of the cathode plate and a zinc stripping port part. The cathode plate used in the production at home and abroad at present mainly has the following corrosion prevention methods, namely a cold bonding process: and (3) coating the parts 2 and 3 with anticorrosive glue, then coating anticorrosive materials, then packaging the parts 2 with plastic strips, and leaving the parts 4 without manufacturing. Secondly, a hot sticking process: and (3) coating the parts 2, 3 and 4 with anticorrosive glue, then coating anticorrosive material, and then performing one-time injection molding on the parts 2. Thirdly, a vulcanization process: and 2, priming the parts 2 and 3 with glue, then sticking the parts 2 and 3 with rubber, and vulcanizing on a vulcanizing machine, wherein the part 4 is not manufactured. The methods all have the defect of long working procedure, the surface of the negative plate needs to be cleaned, the surface is coarsened and other processes before being coated, and the vulcanization of one negative plate needs 20 to 30 minutes. The production efficiency is low, the quality of the anticorrosive coating is poor, particularly, the service life of the zinc stripping opening is shortest, so that the service life of the electrolytic zinc cathode plate is 3-8 months, one part of the anticorrosive coating is damaged, and the whole cathode plate is scrapped. At present, manufacturers only need to repair and rework the damaged anticorrosive coating, and the electrolytic zinc cathode plate is corroded during maintenance, so that the service life of the cathode plate is increased only with limited effect.
Disclosure of Invention
The invention aims to provide a method for manufacturing sedimentation type anticorrosion plastic of an electrolytic zinc cathode plate, and an anticorrosion layer produced by the method and plastic specially researched and developed by the company has the characteristics of simple production process, high production efficiency, good anticorrosion effect, no aging, no falling and long service life.
In order to solve the technical problem, the invention discloses a method for manufacturing sedimentation type anticorrosive plastic of an electro-zinc cathode plate, which comprises the following steps of:
step 2, punching three rows of holes in the area of the liquid level line part above the cathode plate by adopting an oil press and a die;
and 5, performing double-sided injection molding on the double-sided groove through an injection molding machine and an injection mold to form the plastic anticorrosive layer.
Preferably, the cathode plate is an aluminum plate with the length of 800-1800mm, the width of 500-1200mm and the thickness of 5-10 mm.
Preferably, in the step 1, the distance between the single row of holes on the two vertical sides of the cathode plate is 35-45mm, and the diameter of the single row of holes is 5-10 mm.
Preferably, in the step 2, the distance between the upper adjacent hole and the lower adjacent hole of the three rows of holes is 25-35mm, the distance between the left adjacent hole and the right adjacent hole is 35-45mm, and the aperture of the three rows of holes is 5-10 mm.
Preferably, the diameter of the zinc stripping port in the step 3 is 80-100 mm.
Preferably, the depth of the double-sided groove in the step 4 is 1-2 mm.
Preferably, the area of the plastic anti-corrosion layer in the step 5 is 2mm, which completely covers the punched hole.
The invention has the beneficial effects that: according to the invention, through the oil press and the die, the single-row holes are respectively punched on two vertical edges of the negative plate, the three rows of holes are punched in the area of the liquid level line part above the negative plate, the plum blossom-shaped zinc peeling port is punched between the liquid level line and the negative plate, then the three rows of hole areas and the zinc peeling port are pressed out of the double-sided groove, and finally the double-sided groove is subjected to double-sided injection molding through the injection molding machine and the injection molding die at one time to form the plastic anti-corrosion layer.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of fig. 1 of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
Example one
As shown in attached figures 1 and 2, the method for manufacturing the sedimentation type anti-corrosion plastic of the electro-zinc cathode plate 1 comprises the following steps:
step 2, punching three rows of holes in the partial area of the liquid surface line 3 above the cathode plate 1 by adopting an oil press and a die; the number of each row of holes of the three rows of holes is flexibly determined according to the hole pitch and the size of the liquid surface line area;
and 3, stamping the plum blossom-shaped zinc stripping opening 4 in the area of the liquid level line 3 by adopting an oil press and a die in one step. The two vertical edges 2, the liquid surface line 3 and the zinc stripping port 4 are areas for manufacturing the anti-corrosion plastic. The number of the single-row holes punched by the other two vertical edges 2 is determined by the hole distance and the size of the vertical edges;
And 5, performing double-sided injection molding on the double-sided groove through an injection molding machine and an injection mold to form a plastic anticorrosive layer 5, wherein the double-sided injection molding refers to that the plastic is fed from a single side and flows through the vertical side holes punched in the step 1, the three rows of holes punched in the step 2 and the quincuncial holes punched in the step 3 to the other side of the aluminum plate to form double-sided plastic, the plastic with the injection molding temperature of 260-320 ℃ is cooled in the injection mold, the mold is connected with cooling water, the plastic can be supplemented in the forming process without cracking, the injection molding machine is reformed by a vertical oil press, a gun barrel is erected, the injection mold adopts a hot runner technology, a large sprue is removed, a water gap is not generated, and a plastic inlet is arranged in a product area, so that the product is thin (the thickness of a zinc layer on the surface of the cathode plate 1 is about 5mm, the plastic anticorrosive layer 5 is required, the thickness cannot be greater than. The depth of the groove is 1mm, and the total thickness of the plastic anti-corrosion layer is within 2.5 mm. The two-sided plastic is buckled on the board surface due to the shrinkage of the plastic in the holes, and the two vertical edges 2, the liquid level lines 3 and the zinc stripping openings 4 are all plated with plastic anti-corrosion layers 5.
When the aluminum plate punching machine is used for processing, the aluminum plates with the lengths, the widths and the thicknesses of 1000mm, 666mm and 5mm are punched, the single-row holes of the vertical edge 2 are holes in the length direction, are distributed in the range from the bottom edge to 900mm, and the width is the area in the edge 15mm of the vertical edge 2. The distance between the single-row holes of the two vertical edges 2 of the cathode plate 1 is 40mm, the aperture is 6mm, and the single-row holes are arranged. The distance between the liquid level line 3 hole and the bottom edge is 900-980mm, the distance between the upper and lower adjacent three rows of holes is 30mm, the distance between the left and right adjacent three rows of holes is 40mm, and the aperture is 6mm in the whole width area. The zinc stripping port 4 is a plum blossom hole. The center is 910mm from the bottom edge, the center is 75mm from the edge of the vertical edge 2, and the diameter of the zinc stripping port 4 is 90 mm. The area of the hole of the liquid surface line 3 is extruded out of the double-sided groove.
The manufactured electrozinc cathode plate has the characteristic that the service life is as long as more than 30 months, and is called a maintenance-free electrozinc cathode plate in the industry.
Example two
As shown in attached figures 1 and 2, the method for manufacturing the sedimentation type anti-corrosion plastic of the electro-zinc cathode plate 1 comprises the following steps:
step 2, punching three rows of holes in the partial area of the liquid surface line 3 above the cathode plate 1 by adopting an oil press and a die; the number of each row of holes of the three rows of holes is flexibly determined according to the hole pitch and the size of the liquid surface line area;
and 3, stamping the plum blossom-shaped zinc stripping opening 4 near the liquid level line by adopting an oil press and a die in one step. The liquid level line 3, the two vertical edges 2 and the zinc stripping port 4 are areas for manufacturing the anti-corrosion plastic. The number of the single-row holes punched by the other two vertical edges 2 is determined by the hole distance and the size of the vertical edges;
And 5, performing double-sided injection molding on the double-sided groove through an injection molding machine and an injection mold to form a plastic anticorrosive layer 5, wherein the double-sided injection molding means that glue is fed from one side and flows to the other side of the aluminum plate through the three rows of holes punched in the step 2 and the plum blossom holes punched in the step 3 to form double-sided plastic, and the injection molding temperature is 260-320 ℃. The plastic is cooled in the injection mould, the mould is connected with cooling water, the shrinkage of the plastic can be supplemented in the forming process, the plastic does not crack, the injection mould is transformed by a vertical oil press, a gun barrel is erected, the injection mould adopts a hot runner technology, a large sprue is removed, a water gap is not generated, and a plastic inlet is arranged in a product area, so that the product is thin (the thickness of a zinc layer on the surface of the cathode plate 1 is about 5mm, the thickness of the plastic anti-corrosion layer 5 is required, the thickness cannot be larger than 2mm, otherwise, the zinc sheet cannot be peeled off), and the protruded plate surface can be below 1.5 mm. The groove depth is 1mm, the total thickness of the plastic anti-corrosion layer 5 is within 2.5mm, the two-sided plastic is buckled on the board surface due to the shrinkage of the plastic in the hole, and the two vertical edges 2, the liquid level line 3 and the zinc stripping port 4 are all plated with the plastic anti-corrosion layer 5.
During processing, aluminum plates with the lengths, widths and thicknesses of 1530mm, 1000mm and 7mm are punched, single-row holes of the vertical edge 2 are holes in the length direction, and the holes are distributed in an area from the bottom edge to 1372mm, and the width of the area is 15mm inside the edge of the vertical edge 2. The distance between the single-row holes of the two vertical edges 2 of the cathode plate 1 is 40mm, the aperture is 8mm, and the single-row holes are arranged. The hole system of the liquid surface line 3 is arranged at a distance of 1372-1472mm from the bottom edge, the distance between the upper and lower adjacent three rows of holes is 30mm, the distance between the left and right adjacent three rows of holes is 40mm, and the aperture is 6mm in the whole width area. The zinc stripping port 4 is a plum blossom hole. The center is 1380mm away from the bottom edge, the center is 75mm away from the edge of the vertical edge 2, and the diameter of the zinc stripping port 4 is 90 mm.
The manufactured electrozinc cathode plate has the characteristic that the service life is as long as more than 30 months, and is called a maintenance-free electrozinc cathode plate in the industry.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (6)
1. A method for manufacturing sedimentation type anticorrosive plastic cement of an electrolytic zinc cathode plate is characterized by comprising the following steps: the method comprises the following steps:
step 1, punching single-row holes on two vertical edge parts of a cathode plate by adopting an oil press and a die;
step 2, punching and forming three rows of holes in one step in the liquid level line area above the cathode plate by adopting an oil press and a die;
step 3, stamping a plum blossom-shaped zinc stripping opening near the liquid level line by using an oil press and a die in one step;
step 4, extruding a double-sided groove in the area of the three-row hole of the liquid level line and the area of the zinc stripping hole at one time by adopting an oil press and a die;
and 5, performing double-sided injection molding on the double-sided groove through an injection molding machine and an injection mold to form a plastic anticorrosive layer (double-sided injection molding refers to that glue is fed from a single side and flows to the other side of the aluminum plate through the three rows of holes punched in the step 2 and the plum blossom holes punched in the step 3 to form double-sided plastic, the plastic is cooled in the injection mold, the mold is connected with cooling water, and the shrinkage energy of the plastic is supplemented in the forming process without cracking).
2. The manufacturing method of the sedimentation type anti-corrosion plastic cement with the electro-zinc cathode plate as claimed in claim 1 is characterized in that: in the step 1, the distance between the single-row holes on the two vertical sides of the cathode plate is 35-45mm, and the diameter of the single-row holes is 5-10 mm.
3. The manufacturing method of the sedimentation type anti-corrosion plastic cement with the electro-zinc cathode plate as claimed in claim 1 is characterized in that: in the step 2, the distance between the upper adjacent hole and the lower adjacent hole is 25-35mm, the distance between the left adjacent hole and the right adjacent hole is 35-45mm, and the aperture of the three rows of holes is 5-10 mm.
4. The manufacturing method of the sedimentation type anti-corrosion plastic cement with the electro-zinc cathode plate as claimed in claim 1 is characterized in that: the diameter of the zinc stripping port in the step 3 is 80-100 mm.
5. The manufacturing method of the sedimentation type anti-corrosion plastic cement with the electro-zinc cathode plate as claimed in claim 1 is characterized in that: and the depth of the double-sided groove in the step 4 is 1-2 mm.
6. The manufacturing method of the sedimentation type anti-corrosion plastic cement with the electro-zinc cathode plate as claimed in claim 1 is characterized in that: and in the step 5, the area of the plastic anti-corrosion layer is 2mm, and the punched holes are completely covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258912.8A CN110978379A (en) | 2019-12-10 | 2019-12-10 | Method for manufacturing sedimentation type anti-corrosion plastic of electrolytic zinc cathode plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258912.8A CN110978379A (en) | 2019-12-10 | 2019-12-10 | Method for manufacturing sedimentation type anti-corrosion plastic of electrolytic zinc cathode plate |
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| CN110978379A true CN110978379A (en) | 2020-04-10 |
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| CN201911258912.8A Pending CN110978379A (en) | 2019-12-10 | 2019-12-10 | Method for manufacturing sedimentation type anti-corrosion plastic of electrolytic zinc cathode plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201793781U (en) * | 2010-09-01 | 2011-04-13 | 长沙有色冶金设计研究院 | Negative plate preventing deposited metal from generating irregular stripping end surface |
| CN204752875U (en) * | 2015-06-17 | 2015-11-11 | 韶关市键宇电极技术有限公司 | Zinc electrodeposition aluminium negative plate |
| CN205398746U (en) * | 2016-03-04 | 2016-07-27 | 湖南橙石科技发展有限公司 | Take anticorrosive adhesion layer's of neck negative plate |
| CN207643567U (en) * | 2017-12-14 | 2018-07-24 | 沈阳弘圣鑫电解技术研发有限公司 | A kind of cathode plate edge sealing injection device |
-
2019
- 2019-12-10 CN CN201911258912.8A patent/CN110978379A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201793781U (en) * | 2010-09-01 | 2011-04-13 | 长沙有色冶金设计研究院 | Negative plate preventing deposited metal from generating irregular stripping end surface |
| CN204752875U (en) * | 2015-06-17 | 2015-11-11 | 韶关市键宇电极技术有限公司 | Zinc electrodeposition aluminium negative plate |
| CN205398746U (en) * | 2016-03-04 | 2016-07-27 | 湖南橙石科技发展有限公司 | Take anticorrosive adhesion layer's of neck negative plate |
| CN207643567U (en) * | 2017-12-14 | 2018-07-24 | 沈阳弘圣鑫电解技术研发有限公司 | A kind of cathode plate edge sealing injection device |
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Application publication date: 20200410 |