（1）使用合理的夾緊方(fang)法和固(gu)定裝置

目的均勻(yun)加熱和冷(leng)卻工件(jian)(jian)以減少不(bu)均勻(yun)的熱應(ying)力(li)和不(bu)均勻(yun)的組(zu)織(zhi)應(ying)力(li)以減少變(bian)(bian)形。夾(jia)緊(jin)方(fang)法可以改變(bian)(bian)。圓盤部件(jian)(jian)垂(chui)直(zhi)于油面，軸部件(jian)(jian)垂(chui)直(zhi)安(an)裝。使(shi)用補償墊(dian)圈和支撐墊(dian)圈。 ，花鍵孔(kong)部件(jian)(jian)可使(shi)用滲碳芯(xin)軸，疊加墊(dian)圈等(deng)。

（2）加工

當熱處(chu)(chu)理(li)(li)是工(gong)(gong)(gong)(gong)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)過程的(de)(de)(de)最(zui)后(hou)(hou)一步時(shi)(shi)，熱處(chu)(chu)理(li)(li)變(bian)(bian)形(xing)的(de)(de)(de)允許值應滿足圖紙上指定(ding)的(de)(de)(de)工(gong)(gong)(gong)(gong)件(jian)(jian)尺(chi)(chi)寸，變(bian)(bian)形(xing)變(bian)(bian)量(liang)(liang)應根(gen)據前(qian)一加(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)尺(chi)(chi)寸確(que)定(ding)。因此，根(gen)據工(gong)(gong)(gong)(gong)件(jian)(jian)的(de)(de)(de)變(bian)(bian)形(xing)，應在熱處(chu)(chu)理(li)(li)之前(qian)進行(xing)尺(chi)(chi)寸的(de)(de)(de)預校正，以(yi)使熱處(chu)(chu)理(li)(li)變(bian)(bian)形(xing)在合格范圍內。當熱處(chu)(chu)理(li)(li)是中間過程時(shi)(shi)，應將熱處(chu)(chu)理(li)(li)前(qian)的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量(liang)(liang)視(shi)為加(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量(liang)(liang)和(he)熱處(chu)(chu)理(li)(li)變(bian)(bian)形(xing)的(de)(de)(de)總(zong)和(he)。通常，加(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量(liang)(liang)容(rong)易(yi)確(que)定(ding)，并且由于許多影響(xiang)因素而使熱處(chu)(chu)理(li)(li)更(geng)加(jia)(jia)復雜，因此留有(you)足夠的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)余(yu)(yu)量(liang)(liang)用(yong)于加(jia)(jia)工(gong)(gong)(gong)(gong)，其余(yu)(yu)的(de)(de)(de)可以(yi)用(yong)作熱處(chu)(chu)理(li)(li)容(rong)許變(bian)(bian)形(xing)變(bian)(bian)量(liang)(liang)。熱處(chu)(chu)理(li)(li)后(hou)(hou)的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)后(hou)(hou)，根(gen)據工(gong)(gong)(gong)(gong)件(jian)(jian)的(de)(de)(de)變(bian)(bian)形(xing)規律，采用(yong)抗變(bian)(bian)形(xing)和(he)收縮端預擴孔，以(yi)提高淬(cui)火后(hou)(hou)的(de)(de)(de)變(bian)(bian)形(xing)合格率。

（3）使用適當的媒(mei)體

鋼熱處理廠家在(zai)確保相同(tong)的(de)(de)硬度要求的(de)(de)前(qian)提下(xia)，嘗(chang)試(shi)使用油(you)性(xing)介質(zhi)。實驗和(he)實踐證明，在(zai)沒(mei)有(you)其他條件(jian)的(de)(de)前(qian)提下(xia)，油(you)性(xing)介質(zhi)的(de)(de)冷(leng)卻速度較慢(man)，而水(shui)性(xing)介質(zhi)的(de)(de)冷(leng)卻速度則相對(dui)較快。而且，與(yu)油(you)性(xing)介質(zhi)相比，水(shui)溫變(bian)化(hua)對(dui)水(shui)性(xing)介質(zhi)的(de)(de)冷(leng)卻特性(xing)影響更(geng)大(da)。在(zai)相同(tong)的(de)(de)熱(re)處(chu)理條件(jian)下(xia)，與(yu)水(shui)性(xing)介質(zhi)相比，淬火后油(you)性(xing)介質(zhi)的(de)(de)變(bian)形(xing)量相對(dui)較小。

鋼熱處理廠家可以改善工(gong)(gong)件的(de)機械性(xing)能，并提(ti)高(gao)工(gong)(gong)件的(de)強度和(he)硬度，但不可避免地產(chan)生變(bian)形效果。現(xian)階段，我們必須(xu)重視中(zhong)國熱處理(li)技(ji)術和(he)設備的(de)改進，不斷學(xue)習(xi)國外(wai)先進技(ji)術，提(ti)高(gao)熱處理(li)工(gong)(gong)件的(de)質量和(he)合格率，為中(zhong)國熱處理(li)行業(ye)做(zuo)出(chu)貢獻。