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A method and electroplating tank for single-sided copper plating of wide-width stainless steel strip

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 surface roughness, and enhancing the complexing effect

Active Publication Date: 2016-05-18
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. The purpose is to provide a safe, environmentally friendly, low-cost, and high-speed method for continuous single-sided copper plating of wide stainless steel strips. The single-sided stainless steel produced by this method The surface with coating is uniform, bright and dense, with strong corrosion resistance, high conductivity of the coating, and excellent stamping resistance, which meets the needs of electronics and military industries and can be industrialized.

Method used

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  • A method and electroplating tank for single-sided copper plating of wide-width stainless steel strip
  • A method and electroplating tank for single-sided copper plating of wide-width stainless steel strip
  • A method and electroplating tank for single-sided copper plating of wide-width stainless steel strip

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Adopt the method of horizontal transmission, electroplate the lower side, use 430 stainless steel strip as the base material, the thickness is 0.25mm, the width is 600mm, adopt the following process to process it.

[0067] (1) Chemical degreasing

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

[0069] (2) Electrodegreasing

[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°C, and the current density is 3A / dm 2 ;

[0071] First, use the stainless steel strip as the cathode, and the inert electrode as the anode, and electrolytically degrease 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 wa...

Embodiment 2

[0098] Adopt the way of horizontal transmission, electroplate the lower side, use 201 stainless steel strip as the base material, the thickness is 0.15mm, the width is 120mm, adopt the following process to process it.

[0099] (1) Chemical degreasing

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

[0101] wash with hot water;

[0102] (2) Electrodegreasing

[0103] 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 50°C, and the current density is 3A / dm 2 ;

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

[0105] Wash with h...

Embodiment 3

[0131] Adopt the method of horizontal transmission, electroplate the lower side, use 304 stainless steel strip as the base material, the thickness is 0.2mm, the width is 200mm, adopt the following process to process it.

[0132] (1) Chemical degreasing

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

[0134] (2) Electrodegreasing

[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°C, and the current density is 3A / dm 2 ;

[0136] First, use the stainless steel strip as the cathode, and the inert electrode as the anode, and electrolytically degrease 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 ...

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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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Patent Type & Authority Patents(China)
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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