Deplating solution applicable to metal plating on workpiece surfaces and deplating method

A metal coating and workpiece surface technology, which is applied to the deplating solution and deplating field of the metal coating on the workpiece surface, can solve the problems of poor deplating effect and low deplating efficiency, and achieve obvious effect, good deplating effect, and deplating clean and thorough effect

Inactive Publication Date: 2017-01-04
LENS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a stripping solution and stripping method suitable for the metal coating on the surface of workpieces, so as to solve the technical problems of poor stripping effect and low stripping efficiency on the surface of ceramics and sapphire materials

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A kind of deplating solution comprises the following components by weight: 12 parts of sodium hydroxide, 4 parts of potassium permanganate, and 100 parts of pure water; wherein sodium hydroxide is an alkaline additive, and potassium permanganate is a strong oxidizing agent, pure Water is the solvent.

[0027] The preparation method of above-mentioned deplating solution, comprises the following steps:

[0028] 1. Take 12KG sodium hydroxide, 4KG potassium permanganate and 100KG pure water;

[0029] 2. Mix potassium permanganate and pure water evenly, and then add sodium hydroxide; after the sodium hydroxide is completely dissolved, stir and heat to 60°C, keep warm for 30 minutes, and then cool to room temperature to obtain the desired deplating solution.

[0030] The using method of above-mentioned deplating solution, comprises the following steps:

[0031] 1. Soak the product to be deplated (the surface of the ceramic substrate is electroplated with Al-Si coating) into...

Embodiment 2

[0037] A kind of deplating solution comprises the following components by weight: 15 parts of sodium hydroxide, 6 parts of potassium permanganate, and 100 parts of pure water; wherein sodium hydroxide is an alkaline additive, and potassium permanganate is a strong oxidizing agent, pure Water is the solvent.

[0038] The preparation method of above-mentioned deplating solution, comprises the following steps:

[0039] 1. Take 15KG sodium hydroxide, 6KG potassium permanganate and 100KG pure water;

[0040] 2. Mix potassium permanganate and pure water evenly, and then add sodium hydroxide; after the sodium hydroxide is completely dissolved, stir and heat to 60°C, keep warm for 30 minutes, and then cool to room temperature to obtain the desired deplating solution.

[0041] The using method of above-mentioned deplating solution, comprises the following steps:

[0042] 1. Raise the temperature of the configured deplating solution to 80°C;

[0043] 2. Soak the product to be deplate...

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PUM

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Abstract

The invention provides a deplating solution applicable to metal plating on workpiece surfaces. The deplating solution is prepared from alkaline inorganic base, strong oxidative salt and pure water in the weight ratio being (6-15):(2-6):100. The deplating solution has a good deplating effect on metal plating on surfaces of ceramic and sapphire materials and can realize clean and thorough deplating, the deplating rate can reach 90%-95%, and the deplating efficiency is improved by 10%-15%.

Description

technical field [0001] The invention relates to the technical field of deplating metal coatings on glass, in particular to a deplating solution and a deplating method suitable for metal coatings on the surface of workpieces. Background technique [0002] Glass, ceramics, and sapphire coated with a metal film have been widely used in technical fields such as touch screens and mobile phone covers. Al, Cr, Ni, Ti and other metals are electroplated on the substrate, which can achieve a decorative highlight effect and increase light transmission. Different metal coatings can exhibit different technical properties. However, the products after electroplating may have problems with the quality of the coating and missing processes in the machining of the substrate, etc., and the coating needs to be removed and reprocessed. [0003] The metal coating on the glass is generally removed by concentrated strong acid and organic strong alkali. The operation of concentrated strong acid depl...

Claims

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Application Information

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IPC IPC(8): C23F1/32C23F1/36C23F1/38
Inventor 周群飞饶桥兵颜卓
Owner LENS TECH
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