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Method and device for continuous electrophoretic deposition of single side of metal strip

A metal strip, electrophoretic deposition technology, applied in the direction of electrophoretic plating, electrolytic coating, coating, etc., can solve the problems of long curing time, scratches of electrophoretic coating, easy to scrape off, etc., to shorten the curing time, walk away The effect of uniform speed and reduced resistance

Active Publication Date: 2013-06-26
HUNAN YONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, electrophoretic deposition has the problems of long curing time and easy scraping of the coating before curing. If continuous processing is used, the heating equipment used for curing must be long enough, and the continuous transmission of the metal strip can easily cause the curing to complete. The previous electrophoretic coating is scratched or even peeled off, so at present, there are very few domestic electrophoretic deposition methods for electrophoresis on metal strips, and single-piece electrophoresis is generally used; there are few reports of continuous electrophoretic deposition in foreign countries.

Method used

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  • Method and device for continuous electrophoretic deposition of single side of metal strip
  • Method and device for continuous electrophoretic deposition of single side of metal strip
  • Method and device for continuous electrophoretic deposition of single side of metal strip

Examples

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Effect test

Embodiment 1

[0054] 304 stainless steel tape is selected as the base material for electrophoretic deposition, and the size is 45*0.2mm*mm.

[0055] (1) Unwinding It is unwinding with a fully automatic horizontal disc unwinding machine.

[0056] (2) Gluing Use an automatic positioning glue machine to glue one side of the metal strip. The tape has the following characteristics: excellent insulation, high temperature resistance below 250 ° C, strong resistance to acid and alkali, good adhesion, and no residual glue.

[0057] (3) Oil removal: Combined electrochemical oil removal is adopted. The specific process is: NaOH 50g / L, Na 2 CO 3 40g / L,Na 3 PO 4 20g / L,Na 2 SiO 3 4g / L; degreasing temperature 60~70℃, current density D k 3A / dm 2 . Cathode oil removal time 1min, anode oil removal time 20s.

[0058] (4) Activation Using electrolytic activation, the activation conditions are: 10% hydrochloric acid, the temperature is 25 ℃, the 304 steel strip is used as the anode, the inert electrod...

Embodiment 2

[0065] Brass tape is selected as the base material for electrophoretic deposition, and the size is 45*0.2mm*mm.

[0066] (1) Unwinding Using a fully automatic horizontal disc unwinding machine, the strip runs at a uniform speed and has low resistance.

[0067] (2) Gluing Use an automatic positioning glue machine to glue one side of the metal strip. The tape has the following characteristics: excellent insulation, high temperature resistance below 250 ° C, strong resistance to acid and alkali, good adhesion, and no residual glue.

[0068] (3) Degreasing Degreasing adopts combined electrochemical degreasing, the specific process is: NaOH50g / L, Na 2 CO 3 40g / L,Na 3 PO 4 20g / L,Na 2 SiO 3 4g / L; degreasing temperature 60~70℃, current density D k 3A / dm 2 . Cathode oil removal time 1min, anode oil removal time 20s.

[0069] (4) Activation Using electrolytic activation, the activation conditions are: 10% hydrochloric acid, the temperature is 25 ℃, the brass strip is used as t...

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Abstract

The invention discloses a method and a device for continuous electrophoretic deposition of a single side of a metal strip. The method comprises the technological processes of rubberizing the single side of the metal strip; unoiling the un-rubberized side; carrying out electrolytic activation; carrying out constant-voltage electrophoretic deposition after activating, and carrying out curing treatment by adopting continuously gradient heating atmosphere; and tearing off the adhesive to obtain the product. The industry flow is shown in the specification; the technological processes adopt a reel-to-reel continuous treatment mode in the whole process; and the defects that the curing treatment time is too long, and an electrophoretic coating is easily scrapped before and during curing in the prior art are overcome. The electrophoretic coating prepared by the method is even in surface and stable in performance, and by adopting the reel-to-reel continuous treatment mode, the method is high in production efficiency and suitable for industrial production, and belongs to the field of electrophoresis of the metal strip.

Description

technical field [0001] The invention relates to a metal strip electrophoretic deposition method and device, in particular to a metal strip single-sided continuous electrophoretic deposition method and device. Background technique [0002] Metal strip refers to a metal strip material with a thickness of less than 0.5mm. It has the advantages of large specific surface area, easy machining and welding, etc. At the same time, due to its unique geometric size, it has an irreplaceable role in the electronics and other industries. However, the metal strip that has just been rolled and has not been treated has disadvantages such as poor corrosion resistance, poor wear resistance, or unsatisfactory welding performance, and is generally not used directly, but the surface of the metal strip is first Processing, improving some of its properties, thereby expanding its application range. There are many modification methods, currently commonly used are electroplating, electrophoresis, spr...

Claims

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Application Information

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IPC IPC(8): C25D13/16C25D5/02C25D13/22
Inventor 潘勇唐伦圆尹业文朱岭刘小铷
Owner HUNAN YONGSHENG NEW MATERIALS