Environmentally-friendly paint removing method of painted metal hanger

A metal spraying and environmental protection technology, applied in the direction of liquid cleaning methods, chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of heavy damage to hangers, high energy consumption, and high equipment requirements, and achieve low equipment investment. Low energy consumption, clean and bright effect

Active Publication Date: 2018-05-22
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods do not require incineration and do not pollute the environment, but cryogenic cooling is required, which requires high energy consumption and high requirements for equipment. In addition, the cryogenic cooling will cause great damage to the hanger itself.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An environment-friendly paint stripping method for metal spraying hangers, specifically:

[0029] Step (1): Put the spraying rack to be cleaned in a soaking tank filled with paint remover, and soak for 2 hours until the coating peels off and peels off.

[0030] Step (2): Transfer the hanger to the washing tank, and rinse the hanger with a paint remover to make the paint peel off.

[0031] Step (3): Transfer the hanger to an ultrasonic cleaning tank, wash it with an ultrasonic cleaner for 30 minutes, remove the residual paint on the surface of the hanger, and obtain a hanger with a clean and bright surface.

[0032] Step (4): After the cleaning is completed, the paint remover mixed with the paint leather and the ultrasonic cleaning agent are respectively filtered out of the paint leather by a filter and then recycled.

[0033] In parts by weight, the components and dosage of the paint remover are: 60 parts of main solvent, 5 parts of co-solvent, 1 part of emulsifier, 2 ...

Embodiment 2

[0043] Step (1): Put the spraying rack to be cleaned in a soaking tank filled with paint remover, and soak for 6 hours until the coating peels off and peels off.

[0044] Step (2): Transfer the hanger to the washing tank, and rinse the hanger with a paint remover to make the paint peel off.

[0045] Step (3): Transfer the hanger to an ultrasonic cleaning tank, wash it with an ultrasonic cleaner for 10 minutes, remove the residual paint on the surface of the hanger, and obtain a hanger with a clean and bright surface.

[0046] Step (4): After the cleaning is completed, the paint remover mixed with the paint leather and the ultrasonic cleaning agent are respectively filtered out of the paint leather by a filter and then recycled.

[0047] In parts by weight, the components and dosage of the paint remover are: 30 parts of main solvent, 10 parts of co-solvent, 5 parts of emulsifier, 15 parts of accelerator, 5 parts of penetrating agent, 2.5 parts of corrosion inhibitor, 0.5 parts ...

Embodiment 3

[0057] Step (1): Put the spraying rack to be cleaned in a soaking tank filled with paint remover, and soak for 4 hours until the coating peels off and peels off.

[0058] Step (2): Transfer the hanger to the washing tank, and rinse the hanger with a paint remover to make the paint peel off.

[0059] Step (3): Transfer the hanger to an ultrasonic cleaning tank, wash it with an ultrasonic cleaner for 20 minutes, remove the residual paint on the surface of the hanger, and obtain a hanger with a clean and bright surface.

[0060] Step (4): After the cleaning is completed, the paint remover mixed with the paint leather and the ultrasonic cleaning agent are respectively filtered out of the paint leather by a filter and then recycled.

[0061] In parts by weight, the components and dosage of the paint remover are: 30 parts of main solvent, 25 parts of cosolvent, 2 parts of emulsifier, 12 parts of accelerator, 3.9 parts of penetrating agent, 2 parts of corrosion inhibitor, 0.1 parts o...

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PUM

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Abstract

The invention relates to an environmentally-friendly paint removing method of a painted metal hanger. The method comprises the following steps: soaking the sprayed hanger to be cleaned for 2-6 h witha paint removing agent; flushing the hanger with the paint removing agent to peel off the paint coating; and then washing with an ultrasonic washing agent for 10-30 min by an ultrasonic washing method, thus removing residual paint on the hanger surface and obtaining the hanger with clean and smooth surface. According to the method, the paint removing agent and the ultrasonic washing agent are environmentally-friendly and low-toxicity water-based washing agents; the paint coating is not dissolved; the recycling is realized; and the environment is protected; the paint removing process can be performed at room temperature, so that the energy consumption is low; the treatment effect is obvious; the hanger is not damaged; and moreover, the technological processes are simple; the equipment investment is low; the cost is low; and massive production and application can be easily achieved.

Description

technical field [0001] The invention relates to the technical field of metal surface paint removal, in particular to a method for removing the coating of metal sprayed hangers by using an environment-friendly paint remover and an ultrasonic cleaning agent. Background technique [0002] For the purpose of beauty and durability, spraying treatment is required on the surface of air conditioners, refrigerators, microwave ovens, electric fans, computers and other home appliances, as well as motorcycles, bicycles, cars, steel furniture and other products. The commonly used metal spraying technology is to use the principle of electrostatic spraying. Under the action of high-voltage static electricity, the paint is dispersed into powder mist particles and adsorbed on the metal surface, and then cured by high temperature baking to become a strong and bright coating. This powder spraying technology does not require the use of solvents, and has the advantages of no pollution, high mech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04C09D9/00B08B3/12
CPCB08B3/12C09D9/005C09D9/04
Inventor 罗辉张永闯范维玉南国枝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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