专用工具锄头的热处理工艺优化改进  

Optimization and Improvement of Heat Treatment Process for Special Tool Hoe

作　　者：卢杉[1] 孙备[1] LU Shan;SUN Bei(College of Mechanical ＆ Electronic Engineering,Jiaozuo University,Jiaozuo 454000,China)

机构地区：[1]焦作大学机电工程学院

出　　处：《热加工工艺》2018年第16期166-168,175,共4页Hot Working Technology

基　　金：河南省科技攻关项目(142102210267)

摘　　要：对专用工具锄头的3种热处理工艺进行了试验,并对锄头硬度、畸变量、耐磨性和显微组织进行了分析。结果表明：45钢淬火回火工艺畸变量最大,硬度适中,耐磨性最差;15Mn钢渗碳淬火工艺硬度最高,耐磨性最好,畸变量适中。15Mn钢淬火低温回火工艺畸变量最小,耐磨性较好,硬度较高,具有良好的综合力学性能,该工艺的显微组织为板条状马氏体。因此,15Mn钢淬火低温回火工艺简单、生产效率高,是最佳的热处理工艺。Three heat treatment processes of special tool hoe were tested. The hardness, distortion, wear resistance and microstructure of the hoe were analyzed. The results show that, the 45 steel after quenching and tempering has the biggest distortion, moderate hardness and the worst wear resistance. The 15 Mn steel after carburizing and quenching process has the highest hardness, the best wear resistance and moderate distortion. The 15 Mn steel after quenching and low temperature tempering has the following advantages： minimum distortion, better wear resistance, higher hardness and good comprehensive mechanical properties. The microstructure of the process is lath martensite. Therefore, the quenching and low temperature tempering process of 15 Mn steel is simple, the production efficiency is high, and it is the best heat treatment process.

关 键 词：锄头 15Mn钢 45钢 热处理工艺 耐磨性 

分 类 号：TG156.3[金属学及工艺—热处理] TG142.31[金属学及工艺—金属学]