熱(re)處(chu)理(li)是(shi)提高(gao)(gao)與(yu)改(gai)(gai)攣15CrMo合金(jin)(jin)圓(yuan)鋼性(xing)能的(de)(de)(de)(de)(de)(de)(de)極為有(you)效措施，它(ta)(ta)對于產品的(de)(de)(de)(de)(de)(de)(de)可(ke)(ke)(ke)靠性(xing)與(yu)經濟性(xing)均起(qi)到十分(fen)(fen)重要(yao)的(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)。15CrMo合金(jin)(jin)圓(yuan)鋼的(de)(de)(de)(de)(de)(de)(de)熱(re)處(chu)理(li)通(tong)常包(bao)括普通(tong)熱(re)處(chu)理(li)(退火(huo)(huo)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)正火(huo)(huo)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)淬火(huo)(huo)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)回(hui)火(huo)(huo))和(he)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)熱(re)處(chu)理(li)(表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)淬火(huo)(huo)及化(hua)(hua)學(xue)熱(re)處(chu)理(li)一(yi)(yi)(yi)滲碳(tan)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)氮化(hua)(hua)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)滲金(jin)(jin)屬等）兩大類。在機(ji)械工程中(zhong)，許多(duo)機(ji)器(qi)零件(jian)，例如內燃機(ji)的(de)(de)(de)(de)(de)(de)(de)曲(qu)軸(zhou)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)齒輪、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)凸輪軸(zhou)以及重要(yao)減速器(qi)中(zhong)的(de)(de)(de)(de)(de)(de)(de)齒輪等，不僅要(yao)求心(xin)部有(you)足夠(gou)的(de)(de)(de)(de)(de)(de)(de)韌性(xing)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)塑性(xing)和(he)抗彎強度(du)，且要(yao)求表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)一(yi)(yi)(yi)定厚度(du)內有(you)高(gao)(gao)硬(ying)(ying)度(du)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)高(gao)(gao)耐磨性(xing)和(he)高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)疲(pi)勞強度(du)。前述的(de)(de)(de)(de)(de)(de)(de)各種整體熱(re)處(chu)理(li)方(fang)(fang)式難以同(tong)(tong)時(shi)(shi)滿(man)足上述各項性(xing)能要(yao)求，采用(yong)(yong)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)熱(re)處(chu)理(li)則是(shi)同(tong)(tong)時(shi)(shi)達(da)到這些(xie)性(xing)能要(yao)求的(de)(de)(de)(de)(de)(de)(de)有(you)效方(fang)(fang)法(fa)。表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)熱(re)處(chu)理(li)就是(shi)通(tong)過改(gai)(gai)變15CrMo合金(jin)(jin)圓(yuan)鋼表(biao)(biao)(biao)(biao)(biao)層(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)組織(zhi)以改(gai)(gai)變表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)性(xing)能的(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)種熱(re)處(chu)理(li)方(fang)(fang)式。表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)淬火(huo)(huo)一(yi)(yi)(yi)一(yi)(yi)(yi)只(zhi)改(gai)(gai)變表(biao)(biao)(biao)(biao)(biao)層(ceng)(ceng)組織(zhi)，而(er)不改(gai)(gai)變表(biao)(biao)(biao)(biao)(biao)層(ceng)(ceng)化(hua)(hua)學(xue)成(cheng)(cheng)分(fen)(fen)的(de)(de)(de)(de)(de)(de)(de)熱(re)處(chu)理(li)。它(ta)(ta)可(ke)(ke)(ke)以用(yong)(yong)高(gao)(gao)頻、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)中(zhong)頻或工頻電流感應加熱(re)方(fang)(fang)式或用(yong)(yong)火(huo)(huo)焰(yan)加熱(re)方(fang)(fang)式實現。其(qi)共同(tong)(tong)特點是(shi)設法(fa)使(shi)15CrMo合金(jin)(jin)圓(yuan)鋼表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)迅速加熱(re)到淬火(huo)(huo)溫(wen)度(du)，而(er)在熱(re)量尚(shang)未傳至零件(jian)心(xin)部時(shi)(shi)，隨即迅速冷卻，使(shi)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)硬(ying)(ying)度(du)高(gao)(gao)，而(er)心(xin)部仍(reng)有(you)較高(gao)(gao)韌性(xing)。化(hua)(hua)學(xue)處(chu)理(li)一(yi)(yi)(yi)一(yi)(yi)(yi)使(shi)15CrMo合金(jin)(jin)圓(yuan)鋼的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)(biao)層(ceng)(ceng)化(hua)(hua)學(xue)成(cheng)(cheng)分(fen)(fen)與(yu)組織(zhi)均發(fa)生改(gai)(gai)變的(de)(de)(de)(de)(de)(de)(de)熱(re)處(chu)理(li)方(fang)(fang)式。化(hua)(hua)學(xue)熱(re)處(chu)理(li)按照(zhao)15CrMo合金(jin)(jin)圓(yuan)鋼表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)滲入元素的(de)(de)(de)(de)(de)(de)(de)不同(tong)(tong)，可(ke)(ke)(ke)分(fen)(fen)為滲碳(tan)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)氮化(hua)(hua)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)碳(tan)氮共滲、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)滲金(jin)(jin)屬等方(fang)(fang)法(fa)。它(ta)(ta)對提高(gao)(gao)和(he)改(gai)(gai)善15CrMo合金(jin)(jin)圓(yuan)鋼的(de)(de)(de)(de)(de)(de)(de)耐磨性(xing)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)抗腐蝕性(xing)、廣(guang)(guang)(guang)(guang)東(dong)(dong)(dong)汕(shan)(shan)(shan)尾(wei)(wei)(wei)(wei)本(ben)(ben)(ben)(ben)地(di)(di)抗疲(pi)勞性(xing)等是(shi)十分(fen)(fen)有(you)效的(de)(de)(de)(de)(de)(de)(de)。當前來化(hua)(hua)學(xue)熱(re)處(chu)理(li)發(fa)展迅速，新(xin)技術的(de)(de)(de)(de)(de)(de)(de)應用(yong)(yong)甚多(duo)。圓(yuan)鋼