Antifriction coating layer of screw compressor and method

A technology of anti-friction coating and coating layer, applied in the direction of rotary piston machinery, mechanical equipment, machine/engine, etc., can solve problems such as corrosion and deformation, and achieve the effect of improving air quality and reliability

Active Publication Date: 2013-07-24
SHANGHAI YILIN LUBRICATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of deformation and corrosion of the screw of the dry screw compressor in the prior art, a compound molybdenum d...

Method used

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  • Antifriction coating layer of screw compressor and method
  • Antifriction coating layer of screw compressor and method
  • Antifriction coating layer of screw compressor and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] The formulation of molybdenum disulfide antifriction coating is as follows:

[0024] Solid lubricant: 10% molybdenum disulfide, 5% tungsten disulfide, 8% graphite, 3% graphite fluoride, 2% antimony trioxide;

[0025] Wear-resisting agent: 1% carbon nanotube, 2% silicon nitride, 2% nano-corundum, 3% corundum, 1% silicon dioxide, 5% graphite fluoride;

[0026] Adhesive: 9% polyester resin, 6% epoxy resin, 7% acrylic resin;

[0027] Additives: 4% powder surface treatment agent, 2% resin active agent;

[0028] Vehicle: N-methylpyrrolidone 30%.

[0029] Active additives are added to the solid lubricant to activate the surface of the solid lubricant so that it can better combine with the polymer material.

[0030] After mixing, the specific gravity is 1200±60 g / L, it is gray-black, and the flash point is 100°C.

[0031] The specific steps of coating the composite molybdenum disulfide antifriction coating on the screw rod are as follows:

[0032] The first step is to carr...

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Abstract

The invention relates to an antifriction coating layer of a screw compressor, and in particular relates to a screw with a composite molybdenum disulfide antifriction coating layer for a dry type screw compressor. The thickness of a dry film of the antifriction coating layer is 30-50 microns; and the antifriction coating consists of 10-16% of polyester resin, 12-30% of epoxy resin, 6-10% of acrylic resin, 1-6% of molybdenum disulfide, 10-16% of graphite, 1-4% of graphite fluoride, 2-9% of tungsten disulfide, 0-3% of molybdenum diselenide, 1-3% of nano diamond, 1-15% of silicon nitride, 2-10% of aluminium oxide, 0-3% of silicon dioxide, 0-2% of antimony trioxide, 3-15% of silicon carbide and 0-1.5% of carbon nano tube based on the total weight. The antifriction coating layer provided by the invention has good wear resistance and corrosion resistance; and the screw with a composite molybdenum disulfide antifriction layer provided by the invention can guarantee the operation stability of the screw compressor in a dry state, improves the air quality of the compressor, and meets the harsh requirements on the air quality of compressor in the food production, the packaging industry, the pharmacy, the bioengineering, the electroplating industry, the automobile spraying industry and the textile industry.

Description

[technical field] [0001] The invention relates to an anti-friction coating layer and a method for a screw compressor, in particular to an anti-friction coating layer and a method for a screw compressor containing composite molybdenum disulfide. [Background technique] [0002] Screw compressors are divided into single-screw compressors and twin-screw compressors. The screw compressor is composed of a pair of parallel, intermeshing female and male screws, and the suction and discharge are realized through the rotation of the two male and female screws. [0003] There are two types of screw compressors: dry type and wet type. The so-called dry type means that no liquid is sprayed in the working chamber, and the compressed gas will not be polluted. [0004] In dry screw compressors, the gas will corrode the rotor due to the lack of lubricating oil and the removal of tiny particles. Therefore, on the basis of the traditional oil-injected screw rotor material, a coating is made t...

Claims

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Application Information

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IPC IPC(8): F04C18/16
Inventor 张碧波
Owner SHANGHAI YILIN LUBRICATING MATERIAL
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