Hardware electroplating method

A hardware and plating technology, applied in the field of hardware surface treatment, can solve the problems of poor color, poor degreasing, easy rust and aging, etc., and achieve the effect of strong texture and improved adhesion

Inactive Publication Date: 2017-05-31
SHAOXING KOUFU FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] If the hardware products are not electroplated, they are easy to rust and age, and the surface is not wear-resistant and not beautiful
Metal hardware without electroplating looks poor in color, lacks texture, and is not high-end; in addition, chrome plating has a great relationship with the strength and corrosion resistance of the coating, especially the pretreatment process of chrome plating has a great impact on the chromium layer. Many chrome plating failures are due to inadequate pretreatment work, such as degreasing, wax removal, oil removal, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In an embodiment of the present invention, a hardware electroplating method includes the following steps:

[0027] (1) Degreasing: immerse the hardware to be plated in an alkaline degreasing agent at 61°C for 15 minutes, and the pH value of the alkaline degreasing agent is 8;

[0028] (2) Ultrasonic cleaning, adding cleaning agent to hot water, the concentration of cleaning agent is 15-25%, and cleaning the plated parts in an ultrasonic environment, and the cleaning temperature is 65°C;

[0029] (3) Wax removal: use trichlorethylene solvent to remove wax from the hardware to be plated, soak for 10 minutes, and soak at a temperature of 30°C;

[0030] (4) Degreasing: Use a solution containing an anionic / non-amphoteric surfactant to degrease the hardware to be plated. Temperature 30°C;

[0031] (5) Anode electrolysis, add degreasing powder to hot water, the concentration of degreasing powder is 35-45%, electrolytically degrease and / or dewax the plated parts, and then was...

Embodiment 2

[0039] In an embodiment of the present invention, a hardware electroplating method includes the following steps:

[0040] (1) Degreasing: immerse the hardware to be plated in an alkaline degreasing agent at 63°C for 22 minutes, and the pH value of the alkaline degreasing agent is 11;

[0041] (2) Ultrasonic cleaning, adding a cleaning agent to hot water, the concentration of the cleaning agent is 20%, and cleaning the plated parts in an ultrasonic environment, and the cleaning temperature is 70°C;

[0042] (3) Wax removal: Use trichlorethylene solvent to remove wax from the hardware to be plated, soak for 15 minutes, and soak at a temperature of 40°C;

[0043] (4) Degreasing: Use a solution containing an anionic / non-amphoteric surfactant for degreasing treatment on the hardware to be plated. Temperature 40°C;

[0044] (5) Anode electrolysis, add degreasing powder in hot water, the concentration of degreasing powder is 40%, electrolytically degrease and / or dewax the plated pa...

Embodiment 3

[0052] In an embodiment of the present invention, a hardware electroplating method includes the following steps:

[0053] (1) Degreasing: immerse the hardware to be plated in an alkaline degreasing agent at 65°C for 30 minutes, and the pH value of the alkaline degreasing agent is 14;

[0054] (2) Ultrasonic cleaning, adding a cleaning agent to hot water, the concentration of the cleaning agent is 25%, and cleaning the plated parts in an ultrasonic environment, and the cleaning temperature is 75°C;

[0055] (3) Wax removal: Use trichlorethylene solvent to remove wax from the hardware to be plated, soak for 20 minutes, and soak at 50°C;

[0056] (4) Degreasing: Use a solution containing an anionic / non-amphophoteric surfactant to degrease the hardware to be plated. Temperature 50°C;

[0057] (5) Anode electrolysis, add degreasing powder in hot water, the concentration of degreasing powder is 45%, electrolytically degrease and / or dewax the plated parts, and then wash with water, t...

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Abstract

The invention discloses a hardware electroplating method. The method comprises following steps of 1, degreasing, 2, ultrasonic cleaning, 3, dewaxing, 4, oil removal, 5, anodic electrolysis, 6, derusting, 7, cathode electrolysis, 8, nickel plating, 9, copper plating, 10, chromium plating and 11, passivation. The rose gold texture surface effect can be achieved on the hardware surface, the texture is strong and high in grade, nickel plating and chromium plating are carried out, a final plating has adhesive force, corrosion resistance, friction resistance and glossiness, and due to passivation, the adhesive force, corrosion resistance, friction resistance and glossiness of the chromium plating layer are improved,

Description

technical field [0001] The invention relates to the field of hardware surface treatment, in particular to a hardware electroplating method. Background technique [0002] If the hardware products are not electroplated, they are easy to rust and age, and the surface is not wear-resistant and not beautiful. At present, for hardware products, nickel plating or chrome plating is generally used. The chemical properties of metal chromium and metal nickel are relatively stable, and they are easily passivated in the air, and then form an extremely thin passivation film on the surface of steel products, which can better resist external corrosion. Metal hardware without electroplating looks poor in color, lacks texture, and is not high-end; in addition, chrome plating has a great relationship with the strength and corrosion resistance of the coating, especially the pretreatment process of chrome plating has a great impact on the chromium layer. Many chrome plating failures are due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/12C25D5/34C25D3/12C25D3/38C25D3/06C25D3/10C25D5/48C23C22/54C23C28/00
CPCC25D5/12C23C22/54C23C28/322C23C28/34C25D3/06C25D3/10C25D3/12C25D3/38C25D5/34C25D5/48
Inventor 黄奇涵
Owner SHAOXING KOUFU FOOD
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