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Preparation method of wear-resistant coating of screw compressor and screw compressor

A screw compressor, wear-resistant coating technology, applied in coatings, mechanical equipment, machines/engines, etc., can solve problems such as affecting the service life of the coating, coating peeling, volumetric efficiency and energy efficiency reduction

Pending Publication Date: 2022-02-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after coating with PTFE coating, the quality of the coating is poor and the adhesion is not strong. Machine vibration and noise problems still exist
At the same time, the thickness of the spray coating is not uniform, and the color and water corrosion resistance are not stable enough, which will easily affect the service life of the coating.

Method used

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  • Preparation method of wear-resistant coating of screw compressor and screw compressor
  • Preparation method of wear-resistant coating of screw compressor and screw compressor
  • Preparation method of wear-resistant coating of screw compressor and screw compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The method of preparing the wear resistant coating of the screw compressor disclosed in this example, which can be found Figure 1 - Figure 7 , Including the following steps,

[0040] S1, using a screw compressor of the impurities 1 and the yang rotor 2, engage the test with the catholic rotor 1 and the male rotor 2, the diamond rotor 1 and the yang rotor 2 maintain a certain engagement gap 3; the diamond rotor 1 and / or Yang rotor 2 After the surface of the rotor, after removing the oil, the surface of the rotor is blown; maintaining a certain meshing gap 3 facilitates mounting the rotor and facilitating the rotor operation, removing the surface of the rotor and blows to remove the surface of the rotor surface, avoiding the subsequent subsequent The adhesion effect of the coating, preferably, is blown with compressed air.

[0041] S2, sandblasted with sand blasting, after sandblasting, after sandblasting, cleaning the sand on the surface of the rotor; sandblasted on the su...

Embodiment 2

[0054] A method of preparing a wear resistant coating screw compressor according to the present embodiment is disclosed, wherein the see Figure 1 - Figure 7 Comprising the steps of,

[0055] Sl, using a screw compressor female rotor 2 and a male rotor, a female rotor and engaging again the male rotor assembly 12, so that the male rotor and a female rotor 2 meshing gap 3 remains constant; on female rotor and / or the male rotor 1 after degreasing the surface of the rotor 2, degreasing, drying rotor surface; 3 remains constant meshing gap convenient and easy operation of the rotor mounting the rotor on the rotor surface degreasing and drying, the surface of the rotor to remove stains, to avoid affect the subsequent paint adhesion results, preferably, blown dry with compressed air.

[0056] S2, after the rotor surface blasting, blasting sand blasting machine, sand clean surface on the rotor; sandblasting the surface of the rotor, the rotor can remove the surface oxide, carbide passiv...

Embodiment 3

[0069] A method of preparing a wear resistant coating screw compressor according to the present embodiment is disclosed, wherein the see Figure 1 - Figure 7 Comprising the steps of,

[0070] Sl, using a screw compressor female rotor 2 and a male rotor, a female rotor and engaging again the male rotor assembly 12, so that the male rotor and a female rotor 2 meshing gap 3 remains constant; on female rotor and / or the male rotor 1 after degreasing the surface of the rotor 2, degreasing, drying rotor surface; 3 remains constant meshing gap convenient and easy operation of the rotor mounting the rotor on the rotor surface degreasing and drying, the surface of the rotor to remove stains, to avoid affect the subsequent paint adhesion results, preferably, blown dry with compressed air.

[0071] S2, after the rotor surface blasting, blasting sand blasting machine, sand clean surface on the rotor; sandblasting the surface of the rotor, the rotor can remove the surface oxide, carbide passiv...

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Abstract

The invention relates to the technical field of air conditioners, and in particular relates to a preparation method of a wear-resistant coating of a screw compressor and the screw compressor. The preparation method comprises the steps that S1 a meshing clearance is kept between a female rotor and a male rotor; oil on the rotor surface of the female rotor and / or the male rotor is removed, and the rotor surface is blow-dried; S2 the surface of the rotor is subjected to sand blasting, and sand grains on the surface of the rotor are cleaned; S3 a PEEK coating is sprayed on a to-be-sprayed area on the surface of the rotor; and S4 the rotor sprayed in the step S3 is subjected to sintering treatment, specifically, the temperature of the rotor is increased to 380 to 420 DEG C from the room temperature within 20 to 25 min, heat preservation is conducted for 0.5 to 1.5 h at the temperature of 380 to 420 DEG C, the rotor is cooled to the room temperature, the PEEK coating is formed, and the thickness of the PEEK coating is controlled. According to the preparation method, the PEEK coating with the uniform thickness can be prepared on the surface of the rotor, and the PEEK coating has the advantages of being low in friction coefficient, resistant to abrasion, self-lubricating, good in adhesive strength and good in sound absorption effect.

Description

Technical field [0001] The present invention relates to the field of air conditioning, and more particularly to a method of preparing a screw compressor wear-resistant coating. Background technique [0002] The screw compressor is a new type of rotary volumetric compressor, has a series of unique advantages such as simple structure, high reliability and convenience of operation and maintenance, and is widely used in refrigeration and air conditioning and aerodynamic, oil, chemical and other industrial fields. [0003] The mechanism of the screw compressor is mainly composed of a housing of a pair of yin and yang screw rotors and an inner cavity. The convex teeth on the yin and yang screw rotor form a working chamber with the casing. During the rotation of the rotor, the working chamber volume formed by the tooth and the casing is larger, thereby achieving the compression process of the gas. In order to ensure the safe operation of the screw compressor, there must be a certain des...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D3/02B05D3/12B05D5/08B05D7/00C23C4/08C23C4/10C23C4/129F04C18/16F04C29/00
CPCB05D7/14B05D5/08B05D3/0209B05D3/12B05D3/0254B05D7/542C23C4/129C23C4/10C23C4/08F04C18/16F04C29/00B05D2518/00F04C2230/91F04C2240/20
Inventor 王奇谭德强陈昌中王成根徐安泽范召卿
Owner GREE ELECTRIC APPLIANCES INC
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