当今工业生产的飞速发展,对工业产品的要求更高,工业噪声已作为“公害”被提到议题上来了。GPA低噪声内啮合齿轮泵是上海机床厂从美国引进的先进技术研制成功的。该泵在制造中采用先进技术,用精密成形刀具加工,具有几何形状复杂、齿形要求高的内齿轮,对精度要求高的外齿轮,采用蜗杆砂轮磨齿机进行磨削,同时采用球墨铸铁浇铸体壳,氮化热处理工件,严格贯彻工艺要求,以 With the rapid development of industrial production today, the demand for industrial products is higher, and industrial noise has been mentioned as a “public hazard”. GPA low noise internal gear pump is developed by Shanghai Machine Tool Plant from the United States to introduce advanced technology. The pump in the manufacture of advanced technology, with precision forming tool processing, with complex geometry, tooth profile demanding internal gear, high precision external gear, the use of worm wheel grinding machine grinding, while the use of ductile iron Casting shell, nitriding heat treatment of workpieces, strict implementation of process requirements