液压支柱缸体“零保温”热处理工艺的研究  

Study on the zero time holding quenching technology of hydraulic support's cylinder

作　　者：李安铭[1] 

机构地区：[1]焦作工学院,河南焦作454159

出　　处：《煤矿机械》2003年第3期44-45,共2页Coal Mine Machinery

摘　　要：采用正交组合回归设计实验方法 ,研究了“零保温”条件下 ,加热温度和回火温度对2 7SiMn钢强度和硬度的影响规律。并进行了显微组织分析。实验表明 ,2 7SiMn钢“零保温”淬火后有较高的强硬性。在实验的基础上 ,提出了液压支柱缸体 (90 0± 1 0 )℃淬火、(63 0± 1 0 )℃回火的“零保温”The regularity of the effect of quenching and tempe ring temperature on 27SiMn steel's property in zero time holding teat-treatment wulas researched by th e orthogonal regressive principle Microstructure is analyzed Experiment turns ou t that 27SiMn steel's strength and hardness are higher in zero time holding teat -treatment Based on experiment,zero time holding head-treatment technique of hy d raulic support's cylinder with (900±10)℃ quenching and (630 ±10)℃ temperin g was established

关 键 词：液压支柱 缸体 正交组合回归设计 回火温度 硬度 强度 热处理工艺 “零保温” 淬火 

分 类 号：TD355.4[矿业工程—矿井建设]