Method for lubricating air cylinder of automobile air-conditioning compressor

Abstract

The invention relates to a method for lubricating an air cylinder of an automobile air-conditioning compressor. The method for lubricating the air cylinder of the automobile air-conditioning compressor comprises one step of arranging a lubricating layer between a piston hole of a cylinder body and a piston, wherein the surface of the piston is provided with a coating or a piston ring; a tin layer with the thickness of 0.5 to 10 mu m is arranged on the inner wall of the piston hole by a chemical immersion plating method; and the chemical immersion plating method comprises the processes of preparing and cleaning, degreasing and cleaning, rinsing, plating a bath, neutralizing, rinsing again and blowing. In the method for lubricating the air cylinder of the automobile air-conditioning compressor, the tin layer is arranged on the inner wall of the piston hole of the air cylinder of the automobile air-conditioning compressor by the chemical immersion plating method, so that a self-lubricating effect is achieved when the compressor is started by utilizing the lubricating property of the tin, the damage to the piston coating and the piston ring and the sliding of an automobile clutch are avoided, and the service life of the compressor is prolonged.

Description

Technical field: [0001] The invention relates to the mechanical field, in particular to an air conditioner compressor, in particular to a method for lubricating a cylinder of an automobile air conditioner compressor. Background technique: [0002] The inclined plate type automotive air conditioner compressor adopts the cooperation mechanism of inclined plate, sliding shoe and piston ball seat to convert the rotary motion of the compressor shaft into the reciprocating motion of the piston, and the reciprocating motion of the piston in the piston hole compresses the gas and transmits the refrigerant gas. During operation, the oil in the system can lubricate the cylinder and piston with the circulation of the refrigerant to achieve the purpose of lubrication. After the automobile air-conditioning compressor stops working for a period of time, the oil in the piston hole or on the piston is deposited at the bottom of the compressor. As a result, there is no oil in the high-positi...

AI Technical Summary

Problems solved by technology

During operation, the oil in the system can lubricate the cylinder and piston with the circulation of the refrigerant to achieve the purpose of lubrication. After the automobile air-conditioning compressor stops working for a period of time, the oil in the piston hole or on the piston is deposited at the bottom of the compressor. As a result, there is no oil in the high-position piston and cylinder, and the starting torque of the compressor becomes larger when the compressor is started. As a result, the coating on the piston surface or the piston ring are easily damaged, so that the compressor pumping function will quickly fail, or due to the large resistance, the car clutch will slip. Reduced clutch life

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