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A composite long-life conductive hook for PCB electroplating and preparation method thereof

A long-life, copper plating technology, applied in the direction of electrolytic coating, electrolytic process, electrolytic components, etc., can solve the problems of inconspicuousness, replacement and cost increase, and not attracting enough attention from the industry

Active Publication Date: 2021-04-30
YONGJIA COUNTY KAITIAN JEWELRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The hanger is a necessary equipment commonly used in the electroplating industry. Because of its small size or easy manufacture, and the use of the hanger in the electrodeposition process is also easy to replace, it has not attracted enough attention in the industry, but it is precisely because of its inconspicuous and large number Replacement, especially in PCB manufacturing, with the rapid development of PCB industry and electronics industry, resulting in a large number of replacements and cost increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The manufacturing process of a composite conductive long-life electric hook for PCB electroplating is as follows:

[0034] 1. Choose stainless steel as the basic body of the hook, and manufacture the shape of the hook through machinery.

[0035] 2. Electroplating copper for stainless steel hooks: chemically degrease the stainless steel hooks prepared in step 1, wash with cold water, and wash with hot water; put them into electroplating copper solution for electroplating. The electroplating solution is: 200g / L CuSO4 5H2O, 50g / L H2SO4, 0.08g / LNa2SO4, 10s high current impact plating (20A / dm 2 ), followed by conventional plating at a temperature of 25°C and a current density of 4A / dm 2 .

[0036]3. A polymer adhesive layer is formed on the hook formed in step 2, and the polymer adhesive layer is an epoxy resin adhesive layer;

[0037] 4. Form a polymer strengthening layer on the hook formed in step 3: select high molecular weight D-polylactic acid with a molecular weight...

Embodiment 2

[0040] The manufacturing process of a composite conductive long-life electric hook for PCB electroplating is as follows:

[0041] 1. Choose stainless steel as the basic body of the hook, and manufacture the shape of the hook through machinery.

[0042] 2. Copper electroplating for stainless steel hooks: chemically degrease the stainless steel hooks prepared in step 1, wash with cold water, and wash with hot water; put them into the electroplating copper solution for electroplating. The electroplating solution is: 160g / L CuSO4 5H2O, 45g / L H2SO4, 1.0g / LNa2SO4, 12s high current impact plating (15A / dm 2 ), followed by conventional plating at a temperature of 25°C and a current density of 3A / dm 2 .

[0043] 3. A polymer adhesive layer is formed on the hook formed in step 2, and the polymer adhesive layer is an epoxy resin adhesive layer;

[0044] 4. Form a polymer strengthening layer on the hook formed in step 3: select high molecular weight D-polylactic acid with a molecular we...

Embodiment 3

[0047] The manufacturing process of a composite conductive long-life electric hook for PCB electroplating is as follows:

[0048] 1. Choose stainless steel as the basic body of the hook, and manufacture the shape of the hook through machinery.

[0049] 2. Copper electroplating for stainless steel hooks: chemically degrease the stainless steel hooks prepared in step 1, wash with cold water, and wash with hot water; put them into an electroplating copper solution for electroplating. The electroplating solution is: 180g / L CuSO4 5H2O, 60g / L H2SO4, 0.12g / LNa2SO4, 15s high current shock plating (18A / dm 2 ), followed by conventional plating at a temperature of 30°C and a current density of 5A / dm 2 .

[0050] 3. A polymer adhesive layer is formed on the hook formed in step 2, and the polymer adhesive layer is an epoxy resin adhesive layer;

[0051] 4. Form a polymer reinforcement layer on the hook formed in step 3: select high molecular weight D-polylactic acid with a molecular wei...

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PUM

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Abstract

The invention relates to a composite long-life conductive hook for PCB electroplating, which contains a stainless steel hook base body, a copper plating layer is formed on the stainless steel hook base body, a polymer adhesive layer is formed on the copper plating layer, and a polymer adhesive layer is formed on the base body of the stainless steel hook. A polymer reinforcement layer is formed on the polymer reinforcement layer, and a conductive layer is formed on the polymer reinforcement layer, which has the characteristics of good conductivity, corrosion resistance, good thermal stability and long life.

Description

technical field [0001] The invention relates to a printed circuit board (PCB), in particular to a composite conductive long-life electric hook for PCB electroplating and a preparation method thereof. Background technique [0002] The hanger is a necessary equipment commonly used in the electroplating industry. Because of its small size or easy manufacture, and the use of the hanger in the electrodeposition process is also easy to replace, it has not attracted enough attention in the industry, but it is precisely because of its inconspicuous and large number Replacement, especially in PCB manufacturing, with the rapid development of the PCB industry and the electronics industry, resulting in a large number of replacements and cost increases. For this reason, our company deliberately researched a hook that was deliberately used for a long time, and made the following research on the technical situation of the existing industry: [0003] The CN208210453U utility model disclose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D17/08C25D15/00C25D3/38B05D7/14D01D5/00B05D7/24
CPCB05D7/14B05D7/24B05D2504/00B05D2508/00C25D3/38C25D15/00C25D17/08D01D5/003
Inventor 李翠芝
Owner YONGJIA COUNTY KAITIAN JEWELRY
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