Pulley assembly of compressor and method of manufacturing the same

摘要

Disclosed therein are a pulley assembly for a compressor and a manufacturing method of the same, which can prevent possible damages during processing and is fit for high-temperature environment because a pulley is made of magnesium alloy.;The pulley assembly includes: a cylindrical hollow pulley made of magnesium alloy; an inner ring formed integrally with the pulley by insert injection molding, the inner ring being fixed to the inner circumferential surface of the pulley and made of a different material from the pulley; and a bearing forcedly pressed and fixed to the inner circumferential surface of the inner ring.

主权项

1. A pulley assembly of a compressor, which includes a cylindrical hollow pulley and a bearing disposed on the inner circumferential surface of the pulley,
wherein the pulley is made of magnesium alloy, wherein a cylindrical inner ring is formed integrally with the inner circumferential surface of the pulley by insert injection molding, the inner ring being made of a different material from the pulley; and wherein the bearing is fixed to the inner circumferential surface of the inner ring, wherein a first coating layer having an oxide film layer formed by spark anodizing is formed on the outer surface of the pulley and a second coating layer having a resin layer formed by electrodeposition is formed on the surface of the first coating layer.