Method for carrying out one-side copper plating on wide stainless steel band and electroplating bath

A technology of stainless steel strips and electroplating tanks, applied in the direction of plating tanks, etc., can solve the problems of non-continuous production, long time consumption, serious environmental pollution, etc., and achieve the effect of improving the bonding force of the coating, reducing the surface roughness, and brightening the surface of the coating

Active Publication Date: 2014-03-26
HUNAN YONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is aimed at the metal copper plating process in the prior art, there are poisonous substances in the plating solution, the waste liquid is difficult to handle, the environmental pollution is serious, the cost is high, and the bonding effect of the copper plating layer is not good, especially when the stainless steel is plated with copper. The plating solution is easily poisoned, and takes a long time, and cannot be produced continuously.

Method used

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  • Method for carrying out one-side copper plating on wide stainless steel band and electroplating bath
  • Method for carrying out one-side copper plating on wide stainless steel band and electroplating bath
  • Method for carrying out one-side copper plating on wide stainless steel band and electroplating bath

Examples

Experimental program
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Example Embodiment

[0065] Example 1

[0066] Using horizontal transmission, the lower side of electroplating is based on 430 stainless steel belt with a thickness of 0.25mm and a width of 600mm. The following process is used to process it.

[0067] (1) Chemical degreasing

[0068] The process conditions are as follows: each liter of washing water contains 60g of degreasing powder and 5mL of detergent; the temperature is 55°C, and the time is 3min; clean with hot water;

[0069] (2) Electric degreasing

[0070] The process conditions are: electrolyte: each liter of electrolyte includes 60g of sodium hydroxide, 40g of sodium carbonate, and 30g of trisodium phosphate; the temperature is 55℃, and the current density is 3A / dm. 2 ;

[0071] First use the stainless steel strip as the cathode, the inert electrode as the anode, and electrolyze the oil for 5 minutes; then use the stainless steel strip as the anode, and the inert electrode as the cathode, and degrease for 5 minutes; first wash it with hot water, and ...

Example Embodiment

[0097] Example 2

[0098] Using the horizontal transmission method, the lower side of electroplating is based on 201 stainless steel belt with a thickness of 0.15mm and a width of 120mm. The following process is used to process it.

[0099] (1) Chemical degreasing

[0100] The process conditions are: each liter of washing water contains 60g of degreasing powder and 5mL of detergent; the temperature is 55℃, and the time is 3min;

[0101] Wash with hot water;

[0102] (2) Electric degreasing

[0103] The process conditions are: electrolyte: each liter of electrolyte includes 60g of sodium hydroxide, 40g of sodium carbonate, and 30g of trisodium phosphate; temperature is 50℃, current density is 3A / dm 2 ;

[0104] First use the stainless steel strip as the cathode, the inert electrode as the anode, and electrolyze the oil for 5 minutes; then use the stainless steel strip as the anode, and the inert electrode as the cathode, and deoil for 5 minutes;

[0105] Rinse with hot water first, then rin...

Example Embodiment

[0130] Example 3

[0131] Using horizontal transmission, the lower side of electroplating is made of 304 stainless steel belt with a thickness of 0.2mm and a width of 200mm. The following process is used to process it.

[0132] (1) Chemical degreasing

[0133] The process conditions are as follows: each liter of washing water contains 80 g of degreasing powder and 5 mL of detergent; the temperature is 55° C., and the time is 3 minutes; and it is washed with hot water.

[0134] (2) Electric degreasing

[0135] The process conditions are: electrolyte: each liter of electrolyte includes 60g of sodium hydroxide, 40g of sodium carbonate, and 30g of trisodium phosphate; the temperature is 65℃, and the current density is 3A / dm. 2 ;

[0136] First use the stainless steel strip as the cathode, the inert electrode as the anode, and electrolyze the oil for 5 minutes; then use the stainless steel strip as the anode, and the inert electrode as the cathode, and degrease for 5 minutes; first wash it wi...

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Abstract

The invention discloses a method for carrying out one-side copper plating on a wide stainless steel band and an electroplating bath. The method comprises the following steps: carrying out oil removal and activation on the pre-plating surface of the stainless steel band of a substrate; carrying out nickel pre-plating and general nickel plating on the activated pre-plating surface of the stainless steel band of the substrate, and carrying out copper plating in an alkaline cyanide-free plating solution; passivating and drying the copper-plated stainless steel band. The improved electroplating bath is adopted in the copper plating process, at least two transmission rotary rollers are hermetically mounted on two groove walls at a transmission inlet and a transmission outlet of the electroplating bath respectively, and the electroplating bath can be used for guaranteeing the liquid level of the bath and preventing a plated layer of the stainless steel band from being scratched and is especially suitable for continuous one-side copper plating of the wide band-shaped stainless steel band. The method is safe, environment-friendly, low in cost and capable of carrying out high-speed one-side copper plating on the wide stainless steel band; the one-side plated layer of the stainless steel band, prepared by the method, is uniform, bright and compact in surface, good in corrosion resistance, high in electric conductivity and excellent in stamping resistance, meets the requirements of electronics and military industry, and can be industrially produced.

Description

technical field [0001] The invention relates to a single-sided copper plating method for a wide stainless steel strip and an electroplating tank, belonging to the field of metal electroplating. Background technique [0002] Single-sided copper-clad stainless steel materials will be widely used in electronic information materials, decorative materials and military materials industries due to their characteristics of brightness, high hardness, strong corrosion resistance, and good conductivity of the copper layer. A lot of research has been done on the copper plating process both at home and abroad. At present, the main copper plating methods are: cyanide copper plating, pyrophosphate copper plating, sulfate copper plating, ethylenediamine copper plating, fluoboric acid copper plating, citric acid-tartaric acid copper plating, HEDP copper plating and sulfamic acid copper plating system etc. Cyanide copper plating has fine crystallization, good bonding force, plating solution...

Claims

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Application Information

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IPC IPC(8): C25D7/06C25D3/38C25D5/36C25D5/12C25D17/02
Inventor 潘勇朱岭刘小铷尹业文向阳刘建洪
Owner HUNAN YONGSHENG NEW MATERIALS
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