（1）使(shi)用合理的夾緊方(fang)法和固定裝置

目的(de)均(jun)勻(yun)加熱和冷(leng)卻工件(jian)以減少(shao)不(bu)(bu)均(jun)勻(yun)的(de)熱應(ying)力(li)和不(bu)(bu)均(jun)勻(yun)的(de)組(zu)織(zhi)應(ying)力(li)以減少(shao)變(bian)(bian)形(xing)。夾(jia)緊方法可以改變(bian)(bian)。圓盤部件(jian)垂直于(yu)油面，軸(zhou)部件(jian)垂直安裝(zhuang)。使用補(bu)償墊(dian)圈和支撐墊(dian)圈。 ，花(hua)鍵孔部件(jian)可使用滲碳芯軸(zhou)，疊加墊(dian)圈等。

（2）加工

當熱(re)處(chu)(chu)理(li)(li)(li)是(shi)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)加(jia)工(gong)(gong)(gong)(gong)(gong)過(guo)程(cheng)的(de)(de)最后一(yi)步時，熱(re)處(chu)(chu)理(li)(li)(li)變(bian)形(xing)(xing)的(de)(de)允許值(zhi)應滿足圖紙(zhi)上指定(ding)(ding)的(de)(de)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)尺(chi)寸(cun)(cun)，變(bian)形(xing)(xing)變(bian)量(liang)(liang)應根據(ju)前一(yi)加(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)尺(chi)寸(cun)(cun)確定(ding)(ding)。因此，根據(ju)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)變(bian)形(xing)(xing)，應在熱(re)處(chu)(chu)理(li)(li)(li)之前進(jin)行尺(chi)寸(cun)(cun)的(de)(de)預校正(zheng)，以使熱(re)處(chu)(chu)理(li)(li)(li)變(bian)形(xing)(xing)在合格范圍(wei)內。當熱(re)處(chu)(chu)理(li)(li)(li)是(shi)中間過(guo)程(cheng)時，應將熱(re)處(chu)(chu)理(li)(li)(li)前的(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)余(yu)量(liang)(liang)視為加(jia)工(gong)(gong)(gong)(gong)(gong)余(yu)量(liang)(liang)和(he)熱(re)處(chu)(chu)理(li)(li)(li)變(bian)形(xing)(xing)的(de)(de)總(zong)和(he)。通(tong)常，加(jia)工(gong)(gong)(gong)(gong)(gong)余(yu)量(liang)(liang)容(rong)易確定(ding)(ding)，并且由于許多影響(xiang)因素而使熱(re)處(chu)(chu)理(li)(li)(li)更加(jia)復(fu)雜，因此留有足夠(gou)的(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)余(yu)量(liang)(liang)用(yong)于加(jia)工(gong)(gong)(gong)(gong)(gong)，其余(yu)的(de)(de)可以用(yong)作熱(re)處(chu)(chu)理(li)(li)(li)容(rong)許變(bian)形(xing)(xing)變(bian)量(liang)(liang)。熱(re)處(chu)(chu)理(li)(li)(li)后的(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)后，根據(ju)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)變(bian)形(xing)(xing)規律，采用(yong)抗變(bian)形(xing)(xing)和(he)收(shou)縮端預擴孔，以提高淬(cui)火后的(de)(de)變(bian)形(xing)(xing)合格率。

（3）使用適當的媒體

鋼熱處理廠家在確保相(xiang)(xiang)(xiang)同(tong)的(de)硬(ying)度要求的(de)前提下，嘗(chang)試(shi)使用油(you)(you)性介(jie)質(zhi)(zhi)。實(shi)驗和實(shi)踐證明(ming)，在沒有(you)其他條件的(de)前提下，油(you)(you)性介(jie)質(zhi)(zhi)的(de)冷卻速(su)度較慢，而水性介(jie)質(zhi)(zhi)的(de)冷卻速(su)度則相(xiang)(xiang)(xiang)對(dui)較快(kuai)。而且，與(yu)油(you)(you)性介(jie)質(zhi)(zhi)相(xiang)(xiang)(xiang)比，水溫變化(hua)對(dui)水性介(jie)質(zhi)(zhi)的(de)冷卻特性影響更大(da)。在相(xiang)(xiang)(xiang)同(tong)的(de)熱處理條件下，與(yu)水性介(jie)質(zhi)(zhi)相(xiang)(xiang)(xiang)比，淬(cui)火后油(you)(you)性介(jie)質(zhi)(zhi)的(de)變形量(liang)相(xiang)(xiang)(xiang)對(dui)較小。

鋼熱處理廠家可以改善工件(jian)的機械性能，并提高工件(jian)的強度(du)和(he)硬(ying)度(du)，但不可避免地產生變形效(xiao)果。現階段，我們必(bi)須重視中國熱處(chu)理(li)技術和(he)設備的改進，不斷(duan)學習(xi)國外先(xian)進技術，提高熱處(chu)理(li)工件(jian)的質量和(he)合(he)格(ge)率，為中國熱處(chu)理(li)行(xing)業做出貢獻。