（1）使用合理的夾緊方法和(he)固(gu)定裝置

目的均(jun)勻加熱(re)和冷(leng)卻工件(jian)以減少不均(jun)勻的熱(re)應(ying)力和不均(jun)勻的組(zu)織應(ying)力以減少變形(xing)。夾緊方法(fa)可以改(gai)變。圓(yuan)盤部(bu)件(jian)垂直(zhi)(zhi)于油面，軸部(bu)件(jian)垂直(zhi)(zhi)安裝。使用(yong)補償墊(dian)圈(quan)和支(zhi)撐(cheng)墊(dian)圈(quan)。 ，花(hua)鍵(jian)孔部(bu)件(jian)可使用(yong)滲碳芯軸，疊加墊(dian)圈(quan)等。

（2）加工

當熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)是工(gong)(gong)件(jian)加(jia)(jia)(jia)工(gong)(gong)過程(cheng)的(de)(de)(de)最后一(yi)步(bu)時，熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)的(de)(de)(de)允許值應滿(man)足圖紙上(shang)指定(ding)的(de)(de)(de)工(gong)(gong)件(jian)尺寸(cun)，變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)變(bian)(bian)(bian)(bian)(bian)(bian)量應根據前一(yi)加(jia)(jia)(jia)工(gong)(gong)的(de)(de)(de)尺寸(cun)確定(ding)。因(yin)此(ci)，根據工(gong)(gong)件(jian)的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)，應在(zai)熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)之前進行尺寸(cun)的(de)(de)(de)預校正(zheng)，以使(shi)熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)在(zai)合格范圍內。當熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)是中間(jian)過程(cheng)時，應將熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)前的(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)余(yu)量視為(wei)加(jia)(jia)(jia)工(gong)(gong)余(yu)量和熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)的(de)(de)(de)總和。通常，加(jia)(jia)(jia)工(gong)(gong)余(yu)量容(rong)易確定(ding)，并(bing)且由于許多影響(xiang)因(yin)素(su)而使(shi)熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)更加(jia)(jia)(jia)復雜(za)，因(yin)此(ci)留有(you)足夠的(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)余(yu)量用(yong)于加(jia)(jia)(jia)工(gong)(gong)，其余(yu)的(de)(de)(de)可以用(yong)作熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)容(rong)許變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)變(bian)(bian)(bian)(bian)(bian)(bian)量。熱(re)(re)(re)(re)處(chu)(chu)(chu)理(li)(li)(li)(li)后的(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)后，根據工(gong)(gong)件(jian)的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)規(gui)律，采用(yong)抗變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)和收(shou)縮(suo)端預擴(kuo)孔，以提高淬火后的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)形(xing)(xing)(xing)(xing)合格率。

（3）使用適當的媒體

鋼熱處理廠家在確保相(xiang)同的(de)(de)硬度(du)要求的(de)(de)前(qian)提下，嘗試使用(yong)油性(xing)(xing)介(jie)質(zhi)(zhi)。實驗和實踐證明，在沒有其他條(tiao)件(jian)的(de)(de)前(qian)提下，油性(xing)(xing)介(jie)質(zhi)(zhi)的(de)(de)冷(leng)卻(que)(que)速度(du)較(jiao)慢，而水性(xing)(xing)介(jie)質(zhi)(zhi)的(de)(de)冷(leng)卻(que)(que)速度(du)則相(xiang)對較(jiao)快。而且，與油性(xing)(xing)介(jie)質(zhi)(zhi)相(xiang)比，水溫變化對水性(xing)(xing)介(jie)質(zhi)(zhi)的(de)(de)冷(leng)卻(que)(que)特(te)性(xing)(xing)影響(xiang)更(geng)大。在相(xiang)同的(de)(de)熱處理條(tiao)件(jian)下，與水性(xing)(xing)介(jie)質(zhi)(zhi)相(xiang)比，淬火后油性(xing)(xing)介(jie)質(zhi)(zhi)的(de)(de)變形量相(xiang)對較(jiao)小(xiao)。

鋼熱處理廠家可以改(gai)善工(gong)件的機(ji)械性能(neng)，并提高工(gong)件的強度(du)和硬度(du)，但(dan)不(bu)可避(bi)免地(di)產生變形效果。現階段(duan)，我們必須(xu)重視(shi)中(zhong)國(guo)熱(re)處理(li)技(ji)術(shu)和設備的改(gai)進(jin)，不(bu)斷學習國(guo)外先進(jin)技(ji)術(shu)，提高熱(re)處理(li)工(gong)件的質量(liang)和合格率(lv)，為中(zhong)國(guo)熱(re)處理(li)行業(ye)做出貢獻。