Method for electrolytic wax removal from automobile covering part

A technology of automobile cover parts and wax liquid, which is applied in the field of electrolytic wax removal of automobile cover parts, can solve the problems of polluted wax removal liquid, pitting on the surface of the coating, and non-hydrophilic metal surface, etc., so as to prolong the service life, shorten the time, and remove the wax The effect of the wax effect is remarkable

Active Publication Date: 2017-12-12
阜南县申通机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, organic solvents such as trichlorethylene have been used to remove wax before electroplating of automobile panels. However, organic solvents cause serious environmental pollution and high production costs, so they have been gradually replaced by wax removal water.
Although the dewaxing water cleaning process avoids the pollution of organic solvents such as trichlorethylene to the environment, it still has problems such as long dewaxing time and high ene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for electrolytic wax removal of automobile cover parts, comprising the following steps:

[0018] S1: Preparation of electrolytic wax solution

[0019] In parts by weight, 15 parts of 4-trimethylsilylstyrene, 10 parts of sodium methacrylate, 1 part of diethylene glycol chloroformate, 2 parts of nonionic surfactant, 6 parts of diffusing agent, four After mixing 8 parts of butylammonium fluoride, 1 part of sodium hexafluorophosphate, and 120 parts of water evenly, continue stirring at a speed of 400 r / min for 30 min;

[0020] S2: Electrolysis

[0021] After cathodic electrolysis of the workpiece for 2 minutes, and then anode electrolysis for 1 minute, the workpiece was rinsed with hot water at 50°C, and the electrolytic wax removal was completed.

[0022] Specifically, the above-mentioned electrolytic wax solution is diluted to 200 times its original volume when used.

[0023] Specifically, the above-mentioned nonionic surfactant is nonionic polyacrylamide, and...

Embodiment 2

[0026] A method for electrolytic wax removal of automobile cover parts, comprising the following steps:

[0027] S1: Preparation of electrolytic wax solution

[0028] In parts by weight, 20 parts of 4-trimethylsilylstyrene, 11 parts of sodium methacrylate, 1 part of diethylene glycol chloroformate, 3 parts of nonionic surfactant, 7 parts of diffusing agent, four After mixing 12 parts of butylammonium fluoride, 1 part of sodium hexafluorophosphate, and 140 parts of water evenly, continue stirring at a speed of 450 r / min for 35 minutes;

[0029] S2: Electrolysis

[0030] After cathodic electrolysis of the workpiece for 3 minutes, and then anode electrolysis for 1 minute, the workpiece is rinsed with hot water at 55°C, and the electrolytic wax removal is completed.

[0031] Specifically, the above-mentioned electrolytic wax solution is diluted to 230 times its original volume when used.

[0032] Specifically, the above-mentioned nonionic surfactant is nonionic polyacrylamide, ...

Embodiment 3

[0035] A method for electrolytic wax removal of automobile cover parts, comprising the following steps:

[0036] S1: Preparation of electrolytic wax solution

[0037] In parts by weight, 25 parts of 4-trimethylsilylstyrene, 12 parts of sodium methacrylate, 2 parts of diethylene glycol chloroformate, 5 parts of nonionic surfactant, 8 parts of diffusing agent, four After mixing 15 parts of butylammonium fluoride, 2 parts of sodium hexafluorophosphate, and 160 parts of water evenly, the stirring was continued for 40 minutes at a speed of 500 r / min;

[0038] S2: Electrolysis

[0039] After cathodic electrolysis of the workpiece for 4 minutes, the anode electrolysis was used for 2 minutes, and then the workpiece was rinsed with hot water at 60°C to complete the electrolytic wax removal.

[0040] Specifically, the above-mentioned electrolytic wax solution is diluted to 250 times its original volume when used.

[0041] Specifically, the above-mentioned nonionic surfactant is nonio...

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PUM

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Abstract

The invention discloses a method for electrolytic wax removal from an automobile covering part. The method comprises the following operation steps: 1, an electrolytic wax removal solution is prepared, 4-trimethylsilyl styrene, sodium methallyl sulfonate, diethylene glycol chloroformate, a nonionic surfactant, a diffusion agent, tetrabutyl ammonium fluoride, sodium hexafluorophosphate and water are uniformly mixed, and then are continuously stirred for 30-40 minutes by adopting the rotate speed of 400-500 r/min; and 2, electrolysis is carried out, a workpiece is subjected to cathode electrolysis for 2-4 minutes, and is subjected to anode electrolysis for 1-2 minutes, then the workpiece is washed by hot water at the temperature of 50-60 DEG C, and the electrolytic wax removal is completed. The method for the electrolytic wax removal from the automobile covering part has the advantages that the electrolytic wax removal solution is green and environment-friendly, the wax removal effect is remarkable so that the wax on the workpiece surface can fall off quickly, and the service life of the wax removal solution can be effectively prolonged.

Description

technical field [0001] The invention belongs to the field of wax removal of automobile cover parts, and in particular relates to a method for electrolytic wax removal of automobile cover parts. Background technique [0002] In the past, organic solvents such as trichlorethylene have been used to remove wax before electroplating of automobile panels. However, organic solvents cause serious environmental pollution and high production costs, and have gradually been replaced by wax removal water. Although the dewaxing water cleaning process avoids the pollution of organic solvents such as trichlorethylene to the environment, it still has problems such as long dewaxing time and high energy consumption, and the metal surface is not hydrophilic after dewaxing with dewaxing water, so it is necessary to add a Alkaline stripping process, in the production, the "wax film" is often not clean, resulting in defects such as pitting and blooming on the surface of the electroplated coating. ...

Claims

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Application Information

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IPC IPC(8): C25F1/04C25D5/34
CPCC25D5/34C25F1/04
Inventor 陈坦和陈明祥于初宏
Owner 阜南县申通机械制造有限公司
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