（1）使用合(he)理的夾緊方(fang)法和(he)固定(ding)裝置

目(mu)的均勻加熱和冷卻(que)工件(jian)(jian)以(yi)(yi)減少不均勻的熱應力(li)和不均勻的組織應力(li)以(yi)(yi)減少變形(xing)。夾緊(jin)方法可(ke)以(yi)(yi)改變。圓盤部件(jian)(jian)垂(chui)直(zhi)于油面(mian)，軸部件(jian)(jian)垂(chui)直(zhi)安裝(zhuang)。使用補償(chang)墊(dian)(dian)圈和支(zhi)撐墊(dian)(dian)圈。 ，花鍵(jian)孔(kong)部件(jian)(jian)可(ke)使用滲(shen)碳芯軸，疊加墊(dian)(dian)圈等(deng)。

（2）加工

當(dang)熱(re)(re)處(chu)理(li)(li)是(shi)(shi)工(gong)(gong)(gong)(gong)(gong)件(jian)加工(gong)(gong)(gong)(gong)(gong)過(guo)程(cheng)的(de)(de)(de)最(zui)后一步時，熱(re)(re)處(chu)理(li)(li)變形的(de)(de)(de)允許值應滿足圖紙上指定(ding)(ding)的(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)件(jian)尺寸(cun)(cun)(cun)，變形變量應根(gen)據前一加工(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)尺寸(cun)(cun)(cun)確定(ding)(ding)。因(yin)此，根(gen)據工(gong)(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)變形，應在(zai)熱(re)(re)處(chu)理(li)(li)之前進行(xing)尺寸(cun)(cun)(cun)的(de)(de)(de)預校(xiao)正(zheng)，以使熱(re)(re)處(chu)理(li)(li)變形在(zai)合格范圍內。當(dang)熱(re)(re)處(chu)理(li)(li)是(shi)(shi)中間過(guo)程(cheng)時，應將熱(re)(re)處(chu)理(li)(li)前的(de)(de)(de)加工(gong)(gong)(gong)(gong)(gong)余量視為加工(gong)(gong)(gong)(gong)(gong)余量和熱(re)(re)處(chu)理(li)(li)變形的(de)(de)(de)總和。通常，加工(gong)(gong)(gong)(gong)(gong)余量容易(yi)確定(ding)(ding)，并且由于(yu)許多影(ying)響因(yin)素(su)而使熱(re)(re)處(chu)理(li)(li)更加復雜，因(yin)此留有足夠(gou)的(de)(de)(de)加工(gong)(gong)(gong)(gong)(gong)余量用(yong)于(yu)加工(gong)(gong)(gong)(gong)(gong)，其余的(de)(de)(de)可以用(yong)作熱(re)(re)處(chu)理(li)(li)容許變形變量。熱(re)(re)處(chu)理(li)(li)后的(de)(de)(de)加工(gong)(gong)(gong)(gong)(gong)后，根(gen)據工(gong)(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)變形規(gui)律，采用(yong)抗變形和收縮端(duan)預擴孔，以提高(gao)淬(cui)火后的(de)(de)(de)變形合格率。

（3）使用適當的(de)媒體

鋼熱處理廠家在確保相同的(de)(de)硬度(du)(du)要求的(de)(de)前提(ti)下(xia)(xia)，嘗(chang)試(shi)使用油性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)。實(shi)驗和實(shi)踐證(zheng)明，在沒有其他條件的(de)(de)前提(ti)下(xia)(xia)，油性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)的(de)(de)冷(leng)卻速度(du)(du)較(jiao)慢，而水性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)的(de)(de)冷(leng)卻速度(du)(du)則相對(dui)較(jiao)快。而且，與油性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)相比，水溫變(bian)化對(dui)水性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)的(de)(de)冷(leng)卻特性(xing)(xing)(xing)(xing)影響更大。在相同的(de)(de)熱處理條件下(xia)(xia)，與水性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)相比，淬(cui)火后油性(xing)(xing)(xing)(xing)介(jie)(jie)質(zhi)的(de)(de)變(bian)形量相對(dui)較(jiao)小(xiao)。

鋼熱處理廠家可(ke)以改(gai)善工件的(de)機(ji)械性能，并提高(gao)工件的(de)強(qiang)度和硬度，但不(bu)可(ke)避(bi)免(mian)地產(chan)生變形(xing)效果。現階段，我們必須重視中國(guo)熱處理(li)技術和設(she)備的(de)改(gai)進，不(bu)斷學習國(guo)外先進技術，提高(gao)熱處理(li)工件的(de)質(zhi)量和合格率，為中國(guo)熱處理(li)行(xing)業做出貢獻(xian)。