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A kind of deplating solution, preparation method of deplating solution and deplating process

A deplating solution and process technology, applied in the field of deplating, can solve the problems such as the inconspicuous deplating effect, and achieve the effects of accelerating the speed of ink glass, reducing the rate of poor spraying, and low odor

Active Publication Date: 2020-07-28
LENS TECH CHANGSHA
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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 kind of deplating solution that can effectively remove the protective oil on the aluminum fixture, to solve the chemical reaction between the alkaline deplating solution and the aluminum material in the prior art, and the acidic deplating solution deplating Does not harm the aluminum material, but the technical problem of fading plating effect is not obvious

Method used

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  • A kind of deplating solution, preparation method of deplating solution and deplating process

Examples

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Effect test

Embodiment 1

[0029] A kind of deplating solution, the deplating solution comprises the following components in terms of mass percentage: 2% of tetramethylammonium hydroxide, 1% of benzotriazole, 1% of sodium metasilicate pentahydrate, 5% of diethylene glycol %, diethylene glycol methyl ether 5%, alkyl glycoside 0.5%, water 85.5%.

[0030] The preparation method of the deplating solution is as follows, adding the weight of sodium metasilicate pentahydrate into water and stirring until completely dissolved, then adding tetramethylammonium hydroxide and alkyl glucoside, stirring until clear and transparent to obtain liquid A;

[0031] B. Stir the diethylene glycol and diethylene glycol methyl ether of the weight evenly, then add benzotriazole, stir until completely dissolved to obtain liquid B;

[0032] C. Mix liquid A and liquid B evenly and stir until completely clear.

[0033] This deplating process is specifically as follows, get the deplating solution stoste and use, record the pH value...

Embodiment 2

[0035] A stripping solution, the stripping solution comprises the following components in terms of mass percentage: 5% tetramethylammonium hydroxide, 2.5% benzotriazole, 5% sodium metasilicate pentahydrate, 15% diethylene glycol %, diethylene glycol methyl ether 15%, alkyl glycoside 1%, water 56.5%.

[0036] The preparation method of the stripping solution and the stripping process of this embodiment are the same as in Example 1.

Embodiment 3

[0038] A stripping solution, the stripping solution comprises the following components in terms of mass percentage: 7% tetramethylammonium hydroxide, 3% benzotriazole, 7% sodium metasilicate pentahydrate, 25% diethylene glycol %Diethylene glycol methyl ether 25%, alkyl glycoside 1.5%, water 31.5%.

[0039] The preparation method of the stripping solution and the stripping process of this embodiment are the same as in Example 1.

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Abstract

The invention provides a deplating solution. The deplating solution is prepared from the following components in percentage by mass: 2-10% of tetramethylammonium hydroxide, 1-5% of 1H-benzotriazole, 1-10% of sodium metasilicate pentahydrate, 5-30% of diethylene glycol, 5-30% of diethylene glycol monomethyl ether, 0.5-2% of alkyl glycoside and the balance pure water. The deplating solution is a weakly-alkaline deplating solution and has the advantages of being environmentally friendly, low in toxicity, small in odor, low in volatility, capable of being applied to a spayed aluminum clamp jig, capable of effectively removing sprayed protective oil, free of residues on the surface, capable of enabling the oil removal yield to reach 99% or above, capable of decreasing the spraying reject ratioand capable of prolonging the service life of a clamp. The invention further discloses a preparation method for the deplating solution and a deplating technology adopting the deplating solution. The preparation method and the deplating technology have the advantages that the steps are simple, the process parameters are easy to control, and the industrial production is easy.

Description

technical field [0001] The invention relates to the technical field of deplating, in particular to a deplating solution, a method for preparing the deplating solution and a deplating process. Background technique [0002] In the processing technology of mobile phone glass and ceramic back cover, the spraying process will use protective oil, and the spraying process will use aluminum jigs, so the surface of the aluminum jig after spraying will leave a thick layer after spraying. Protective oil, the main components are epoxy acrylic resin and epoxy modified resin. The stripping solutions currently on the market mainly have the following disadvantages: (1) The alkaline stripping solution will chemically react with the aluminum, causing damage to the thickness and flatness of the fixture, and if the soaking time is long, the aluminum plate will be damaged. It completely reacts into aluminum ions, and the fixture completely reacts with the potion; (2) The acidic deplating soluti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/18C23G1/22
CPCC23G1/18C23G1/22
Inventor 周群飞何伟聪
Owner LENS TECH CHANGSHA
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