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由国家机械委洛阳拖拉机研究所和武汉齿轮厂共同起草的《拖拉机轴类零件和齿轮感应淬火质量检验标准》(下简称《标准》)已报部审批通过,即将由国家标准出版社出版,现就该《标准》制订的依据,谈一谈拖拉机轴类零件和齿轮感应淬火后的质量控制,便于在今后《标准》贯彻中正确掌握。一.《标准》适用范围1.轴件适用于40、45、50、40Cr、42CrMo、40Mn2、45MnB、40MnB、45Mn2、45Mn、50Mn 等调质钢制造的拖拉机轴类零件经表面感应淬火并回火后的质量检验。不包括曲轴和凸轮轴。2.齿轮适用于20CrMnTi、20Cr、20CrMo、20CrMnMo、25MnTiBXt 等低合金渗碳钢
The “Quality Inspection Standard for Induction Hardening of Tractor Shafts and Gears” (hereinafter referred to as the “Standard”) jointly drafted by the State Machinery Commission Luoyang Tractor Research Institute and Wuhan Gear Factory has been reported to the Ministry for approval and will soon be published by the State Standard Press. Now On the “standard” basis for the development, to talk about tractor shaft parts and gear induction hardening quality control, to facilitate the “standard” in the future to correctly grasp. I. “Standard” Scope 1. Axle for 40,45,50,40 Cr, 42CrMo, 40Mn2, 45MnB, 40MnB, 45Mn2, 45Mn, 50Mn and other quenched and tempered steel tractor shaft parts by induction hardening and back to the surface After the fire quality inspection. Excluding crankshafts and camshafts. 2. Gear suitable for 20CrMnTi, 20Cr, 20CrMo, 20CrMnMo, 25MnTiBXt low alloy carburized steel