1) kwidayagram ye-austenite isothermal yenguqu yendawo eqhelekileyo, oko kukuthi, malunga ne-500-600 ℃, amanzi kwinqanaba lefilimu yomphunga, izinga lokupholisa alikhawulezi ngokwaneleyo, lidla ngokubangela ukupholisa okungalinganiyo kunye nokungonelanga kokupholisa.isantya forgingskunye nokwakhiwa "kwindawo ethambileyo" .Kwinkqubo yokuguqulwa kwe-martensite, oko kukuthi, malunga ne-300-100 ℃, amanzi akwinqanaba lokubilisa, izinga lokupholisa likhawuleza kakhulu, kulula ukwenza isantya senguqu ye-martensite sikhawuleza kakhulu. kwaye uvelise uxinzelelo oluninzi lwangaphakathi, olukhokelela kwi-deformation yokubunjwa kunye nokuqhekeka.

2) Ubushushu bamanzi bunempembelelo enkulu kumthamo wokupholisa, ngoko ke bunovelwano kutshintsho lobushushu be-ambient. Njengoko ubushushu bamanzi bunyuka, umthamo wokupholisa wehla kakhulu, kwaye uluhlu lweqondo lobushushu leqondo eliphezulu lokupholisa lufudukela kwiqondo eliphantsi. kukhokelela ekubeni lukhuniforgings, kodwa inefuthe elincinci kwizinga lokupholisa kuluhlu lwenguqu ye-martensite.Xa ubushushu bamanzi buphakama ukuya kuma-60 ℃, izinga lokupholisa liya kuncipha malunga ne-50%.

xa amanzi equlethe igesi eninzi (njengamanzi asanda kutshintshwa), okanye amanzi axutywe nokungcola okunganyibilikiyo, okufana neoli, isepha, udaka, njl. .
Ngokweempawu zokupholisa zamanzi, amanzi ngokuqhelekileyo H anokusetyenziswa ekucimeni ukupholisa kwekhabhoniizixhobo zentsimbikunye nobungakanani becandelo elincinane kunye nemilo elula.Ukucima, kufuneka kwakhona uqaphele: gcina ubushushu bamanzi ngaphantsi kwe-40 ℃, eyona nto ingcono phakathi kwe-15 ukuya kwi-30 ℃, kwaye ugcine ukujikeleza kwamanzi okanye ulwelo, ukutshabalalisa umphezulu we-inwebu yomphunga, unokusebenzisa ujingi. I-workpiece ngexesha lokucima (okanye yenza i-workpiece ihle phezulu naphantsi) indlela yokuguqula inwebu yomphunga, ukwandisa iqondo lokupholisa phakathi kwe-500-650 ℃, iimeko zokupholisa, ukuphepha ukuvelisa indawo ethambileyo.