链条销轴用40Cr钢表面感应有效硬化层深度、硬度与剪切强度关系的研究  

Study on the Relationship Between the Depth,Hardness and Shear Strength of the Inductively Effective Hardening Case on the Surface of 40Cr Steel Pin for Chain

作　　者：陈亦兵 Chen Yibing(Zhejiang Hengjiu Machinery Group Co.,Ltd.,Zhuji 311800,China)

机构地区：[1]浙江恒久机械集团有限公司,浙江诸暨311800

出　　处：《机械传动》2021年第10期170-175,共6页Journal of Mechanical Transmission

摘　　要：针对40Cr材质的链条销轴,在不同使用工况条件下,为满足其剪切强度和抗磨损的综合性能要求,需要掌握零件不同的表面感应硬化要求与剪切强度之间的相互关系。通过对销轴试样设定不同的表面热处理要求,进行剪切强度试验验证,综合分析表面感应有效硬化层深度、表面硬度与剪切强度的关系,并通过这一关系的建立,确定零件适宜的尺寸参数,达到良好的匹配设备使用功能要求。使用实践表明,通过掌握有效硬化层深度、表面硬度与剪切强度的相互关系,可在水泥行业的斗式提升机链条的销轴设计应用上取得良好的效果。In view of 40 Cr material chain pin,in order to meet the requirements of its comprehensive perfor-mance requirements of shear strength and wear resistance under different working conditions,it is necessary tomaster the relationship between different surface induction hardening requirements and shear strength of chainpin.Through set different requirements for surface heat treatment of pins,the shear strength test is carried out,andthe surface induction effective depth of hardening case,the relationship between shear strength and surface hard-ness is comprehensively analyzed.And through the establishment of this relationship on the basis of the size of theparts suitable parameters,achieve good matching equipment use function requirements.The practice shows thatgood results can be obtained in the design and application of pins of bucket elevator chain in cement industry bymastering the relationship between effective hardening layer depth,surface hardness and shear strength.

关 键 词：链条销轴 40Cr 硬度 有效硬化层深度 剪切强度 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TQ172.687[金属学及工艺—金属材料]