（1）使用合理的夾緊(jin)方法和固定裝置(zhi)

目的均勻(yun)加(jia)熱(re)(re)和(he)冷卻工件(jian)以(yi)(yi)減少不均勻(yun)的熱(re)(re)應(ying)力和(he)不均勻(yun)的組織應(ying)力以(yi)(yi)減少變形(xing)。夾緊方法可(ke)以(yi)(yi)改變。圓盤部件(jian)垂(chui)直(zhi)于油面，軸部件(jian)垂(chui)直(zhi)安裝。使(shi)(shi)用補償墊(dian)圈和(he)支撐(cheng)墊(dian)圈。 ，花鍵孔部件(jian)可(ke)使(shi)(shi)用滲碳芯軸，疊加(jia)墊(dian)圈等。

（2）加工

當熱(re)處(chu)理(li)(li)是工(gong)(gong)(gong)(gong)件加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)過程的(de)(de)(de)(de)(de)(de)最(zui)后一(yi)(yi)步(bu)時，熱(re)處(chu)理(li)(li)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)允許(xu)值(zhi)應(ying)滿足圖紙(zhi)上指定的(de)(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)件尺寸，變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)變(bian)(bian)(bian)(bian)量應(ying)根(gen)據前(qian)一(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)尺寸確定。因(yin)此(ci)，根(gen)據工(gong)(gong)(gong)(gong)件的(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)，應(ying)在(zai)熱(re)處(chu)理(li)(li)之前(qian)進行尺寸的(de)(de)(de)(de)(de)(de)預校(xiao)正(zheng)，以(yi)使熱(re)處(chu)理(li)(li)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)在(zai)合格范圍內。當熱(re)處(chu)理(li)(li)是中間過程時，應(ying)將熱(re)處(chu)理(li)(li)前(qian)的(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量視為(wei)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量和熱(re)處(chu)理(li)(li)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)總和。通常，加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量容(rong)易確定，并(bing)且由(you)于許(xu)多(duo)影響因(yin)素而使熱(re)處(chu)理(li)(li)更加(jia)(jia)(jia)復雜，因(yin)此(ci)留(liu)有足夠的(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量用于加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)，其余(yu)(yu)的(de)(de)(de)(de)(de)(de)可以(yi)用作(zuo)熱(re)處(chu)理(li)(li)容(rong)許(xu)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)變(bian)(bian)(bian)(bian)量。熱(re)處(chu)理(li)(li)后的(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)后，根(gen)據工(gong)(gong)(gong)(gong)件的(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)規律(lv)，采用抗變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)和收縮端(duan)預擴孔(kong)，以(yi)提(ti)高淬火后的(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)形(xing)(xing)(xing)合格率。

（3）使用(yong)適當(dang)的媒體

鋼熱處理廠家在確保相(xiang)(xiang)同的(de)(de)硬(ying)度(du)要求的(de)(de)前提下，嘗試使(shi)用油(you)(you)性(xing)介(jie)質。實驗和實踐證明，在沒(mei)有(you)其他條(tiao)件(jian)的(de)(de)前提下，油(you)(you)性(xing)介(jie)質的(de)(de)冷卻(que)速度(du)較(jiao)慢(man)，而水(shui)性(xing)介(jie)質的(de)(de)冷卻(que)速度(du)則(ze)相(xiang)(xiang)對較(jiao)快(kuai)。而且，與(yu)油(you)(you)性(xing)介(jie)質相(xiang)(xiang)比，水(shui)溫變化對水(shui)性(xing)介(jie)質的(de)(de)冷卻(que)特(te)性(xing)影響更大。在相(xiang)(xiang)同的(de)(de)熱處理條(tiao)件(jian)下，與(yu)水(shui)性(xing)介(jie)質相(xiang)(xiang)比，淬火后(hou)油(you)(you)性(xing)介(jie)質的(de)(de)變形量相(xiang)(xiang)對較(jiao)小(xiao)。

鋼熱處理廠家可以改善工(gong)件的(de)機械性能，并提高(gao)工(gong)件的(de)強度(du)和硬度(du)，但不可避(bi)免(mian)地產生變形效果。現階段，我們(men)必須(xu)重視中國(guo)熱處(chu)(chu)理(li)(li)技術和設(she)備的(de)改進，不斷(duan)學(xue)習國(guo)外先進技術，提高(gao)熱處(chu)(chu)理(li)(li)工(gong)件的(de)質量和合格率，為(wei)中國(guo)熱處(chu)(chu)理(li)(li)行業(ye)做(zuo)出貢獻。