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Discussion on Metallographic Examination Standard for Blower Gear Carburized and Hardened
Author(s): 
Pages: 37-40
Year: Issue:  4
Journal: Heat Treatment

Keyword:  风机齿轮金相检验渗碳淬火标准;
Abstract: 目前,风机行业还没有渗碳、淬火和回火零件的金相检验标准.为此,对相应的渗碳、淬火、回火零件的现行国家和行业标准进行了对比、分析.在此基础上,根据渗碳、淬火的风机齿轮的特点,并参考了公司控制渗碳淬火齿轮畸变的科研成果及国内外渗碳淬火技术的进展,制订了适用于渗碳淬火风机齿轮的金相检验标准(草案).检验项目包括:预备热处理组织、心部组织、硬化层深度、马氏体级别、残留奥氏体级别、碳化物级别以及内氧化级别等.
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