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发动机曲轴是汽车上的一个关键件,一般采用锻钢和球墨铸铁材料制成。汽车行业标准QC/T481《汽车发动机曲轴技术条件》对汽车发动机曲轴材料等有具体规定。原QC/T481—1999《汽车发动机曲轴技术条件》汽车行业标准已修订。修订后的新标准于2005年2月14日发布、2005年7月1日正式
Engine crankshaft is a key piece of the car, usually made of forged steel and ductile iron material. Automotive Industry Standard QC / T481 “Technical Specifications for Automobile Engine Crankshafts” There are specific provisions on crankshaft materials for automobile engines and the like. The original QC / T481-1999 “Automotive engine crankshaft technical conditions” Automotive industry standards have been revised. The revised new standard was released on February 14, 2005 and officially on July 1, 2005