矿用圆环链“零保温”淬火工艺的研究  

A study on quenching technology in zero-time heat of circular chain using in mine

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》2002年第4期42-43,共2页Coal Mine Machinery

摘　　要：采用正交组合回归设计试验方法 ,研究了“零保温”淬火条件下 ,加热温度和回火温度对 2 0MnV钢强度和硬度的影响规律。试验结果表明 ,淬火温度对该钢的抗拉强度和硬度有显著影响 ,适当提高淬火温度 ,2 0MnV钢“零保温”淬火的强、硬性高于常规的 880℃保温淬火。在试验的基础上 ,确定了 (92 0 ± 10 )℃、(46 0 ± 2 0 )℃的圆环链“零保温”淬火。The regularity of the effect of heating temperature and tempering temperature on 20MnV steel's hardness and strength in zero_time holding quenching was researched by the orthogonal regressive principle.Experiment turns out that quenching temperature has remarkable influence on its hardness and tensile strength.Proper raised quenching temperature,20MnV steel's strength and hardness in zero_time holding quenching are higher than that of the conventional 880 ℃ quenching.On the basis of experiment,the process planning parameters of (920±10)℃ quenching and (460±20)℃ tempering are determined under the condition of zero_time heat preservation.

关 键 词：抗拉强度 硬度 零保温 正交试验 矿用圆环链 淬火工艺 

分 类 号：TD528.9[矿业工程—矿山机电] TG156.3[金属学及工艺—热处理]