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Preparation method of environment-friendly spraying electrolysis stripping solution

A deplating solution, an environmentally friendly technology, applied in the field of preparation of environmentally friendly spray electrolytic deplating solution, can solve the problems of strong corrosion of products, damage to the surface of the substrate, strong acidity of the deplating solution, etc., to achieve resource saving and clean and thorough deplating Effect

Inactive Publication Date: 2016-01-13
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: for the current traditional deplating solution using nitrate as the main raw material, the prepared deplating solution is highly acidic, highly corrosive to the product, damages the surface of the substrate, and will produce toxic The gas will cause harm to the operator's body. The invention provides a method of modifying kaolinite particles, which can generate micro-electricity in dry air, and then react with polyaspartic acid, cyclohexyl hexaphosphate and smoke Mix materials such as amides, stir and stand in a micro-current environment to obtain an environmentally friendly spray electrolytic stripping solution that does not require external power supply, does not damage the surface of the substrate, does not add nitrate, and has no harm to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Take 400g of solid particles and put them into a container, then add 50g of polyaspartic acid, 100mL of cyclohexyl hexaphosphate and 20g of sodium dodecylsulfonate respectively, stir for 20min at a temperature of 35°C, and then Stand still for 5 minutes; then add hydroxyethyl cellulose to the above container, under stirring at a rotating speed of 150r / min, when the viscosity reaches 3Pa·s, stop adding hydroxyethyl cellulose, and then add 60g of D-glucose Potassium acid potassium, 110g nicotinamide and 200mL glycerin, stirred at a temperature of 50°C for 10 minutes; after the above stirring was completed, the solution in the container was energized so that the current of the solution was 10mA, the energization time was 40min, and then stood still for 1h , You can get the environmental protection spray electrolytic deplating solution. The preparation method of the solid particles described therein is: take 1 kg of kaolinite and put it in an oven for 40 minutes, set the te...

example 2

[0023]Take 600g of solid particles and put them into a container, then add 100g of polyaspartic acid, 150mL of cyclohexyl hexaphosphate and 50g of sodium dodecylsulfonate respectively, stir for 30min at a temperature of 45°C, and then Stand still for 10 minutes; then add hydroxyethyl cellulose to the above container, under stirring at a rotating speed of 200r / min, when the viscosity reaches 5Pa·s, stop adding hydroxyethyl cellulose, and then add 100g of D-glucose Potassium acid potassium, 150g of nicotinamide and 300mL of glycerin were stirred at a temperature of 60°C for 15 minutes; after the above stirring was completed, the solution in the container was energized so that the current of the solution was 20mA, and the energization time was 45 minutes, and then stood still for 2 hours. An environmentally friendly spray electrolytic deplating solution can be obtained. The preparation method of the solid particles described therein is: take 2kg kaolinite and put it in an oven fo...

example 3

[0026] Take 500g of solid particles and put them into a container, then add 80g of polyaspartic acid, 120mL of cyclohexyl hexaphosphate and 30g of sodium dodecylsulfonate to it respectively, stir for 25min at a temperature of 40°C, and then Let it stand for 7 minutes; then add hydroxyethyl cellulose to the above container, and then add 80g of D-glucose Potassium acid potassium, 120g of nicotinamide and 250mL of glycerin were stirred at a temperature of 55°C for 12 minutes; after the above stirring was completed, the solution in the container was energized so that the current of the solution was 15mA, and the energization time was 42min, and then stood still for 1h. An environmentally friendly spray electrolytic deplating solution can be obtained. The preparation method of the solid particles described therein is: take 1.5kg of kaolinite and put it in an oven for 50 minutes, set the temperature at 120°C, put it into a pulverizer and pulverize it into 170 mesh particles, and the...

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PUM

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Abstract

The invention discloses a preparation method for an environment-friendly spraying electrolysis stripping solution and belongs to the technical field of electroplating. According to current traditional stripping solutions, nitrate serves as a principal raw material, so that the prepared stripping solutions are high in acidity, have high corrosivity to products, and damage the surfaces of base materials; besides, poisonous gas is generated in the stripping process, and harm to the bodies of operators is caused. Kaolinite particles are modified to be capable of generating micro electricity in dry air and then mixed with substances such as polyaspartic acid, phytic acid and nicotinamide, and the mixture is stirred and stands in a microcurrent environment, so that the environment-friendly spraying electrolysis stripping solution which does not need to be electrified externally, does not damage the surfaces of base materials, is free of nitrate and has no harm to the human bodies is obtained. Examples prove that no external electricity is needed for the stripping solution, resources are saved, no corrosion to the surfaces of raw materials is caused, and clean and complete stripping is achieved; the surfaces of the stripped raw materials are protected, no harmful gas is produced, and no harm to the human bodies is caused.

Description

technical field [0001] The invention discloses a method for preparing an environmentally friendly spray electrolytic deplating solution, which belongs to the technical field of electroplating. Background technique [0002] In the process of metal processing, various functional films with high hardness, strong corrosion resistance, high temperature oxidation resistance, or ultra-high adhesion are often formed on the metal surface, such as chromium nitride film or chromium carbide film layer etc. During the formation of the above-mentioned film layer (for example, film formation by physical vapor deposition), due to factors such as contamination of the workpiece surface, some defective products are often produced. When this happens, the coating on the surface of the workpiece needs to be removed and re-coated. In addition, after long-term use of the workpiece, the coating on the surface is seriously damaged and aged, and deplating and rework and replating are also required. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F5/00
Inventor 陈毅忠宋国
Owner CHANGZHOU OPTICAL MATERIAL