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Gu X.,AVIC Changzhou Tianshan Heavy Industry Machinery Co. | Li K.,AVIC Changzhou Tianshan Heavy Industry Machinery Co. | Liu J.,Shanghai Morimatsu Pressure Vessel Co. | Ding S.,AVIC Changzhou Tianshan Heavy Industry Machinery Co. | Ma L.,AVIC Changzhou Tianshan Heavy Industry Machinery Co.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2015

The distortion of 34CrNiMo6 steel wind power annular gear quenched and tempered is not easy to control, which is not conducive to the subsequent fine processing and service life of the annular gear. The main factors that influence the distortion of annular gear were analyzed, and the improvement measures for the heat treatment process to guarantee mechanical properties and reduce distortion of the annular gear was put forward. The results show that natural gas furnace and rectangle quenching bath is not suitable for the manufacturing of wind power annular gear quenched and tempered. Using pit type electric furnace and circular quenching bath and increasing PAG concentration can induce the distortion of 34CrNiMo6 steel wind power annular gear during quenching and tempering treatment, which improves the bearing capacity and prolongs the service life of the annular gear. © 2015, Chinese Mechanical Engineering Society of Heat Treatment. All right reserved. Source

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