1, kwindawo eqhelekileyo ye-austenitic isothermal transition diagram, okt, malunga ne-500-600 ℃, amanzi akwinqanaba lefilimu yomphunga, kwaye isantya sokupholisa asikhawulezi ngokwaneleyo, nto leyo edla ngokukhokelela "kwindawo ethambileyo" eyenziwe kukupholisa okungalinganiyo kunye nesantya esinganelanga sokupholisa. nqanaba, isantya sokupholisa sikhawuleza kakhulu, kulula ukwenza isantya senguqu ye-martensitic sikhawuleza kakhulu kwaye sivelise isixa esikhulu soxinzelelo lwangaphakathi, okubangela ukuguqulwa kokubunjwa okanye ukuqhekeka.

I-2, ubushushu bamanzi bunempembelelo enkulu kumthamo wokupholisa, ngoko ke bunovakalelo kutshintsho lobushushu bendawo. Njengoko ubushushu bamanzi buyanyuka, umthamo wokupholisa uyancipha kakhulu, kwaye uluhlu lobushushu bomgangatho wokupholisa uphezulu uhambela kwiqondo lokushisa eliphantsi.Xa ubushushu bamanzi budlula i-30 ℃, isantya sokupholisa kuluhlu lwe-500-600 ℃ siyancipha ngokucacileyo, okuhlala kukhokelela ekuqulunqeni ukuba kungabi lukhuni, kodwa kunempembelelo encinane kwisantya sokupholisa kuluhlu lwe-marten yokupholisa kuluhlu lwe-6 ℃. ireyithi iya kuhla malunga nama-50%.

3, xa amanzi equlethe igesi eninzi (njengamanzi amatsha), okanye amanzi axutywe nokungcola okunganyibilikiyo, okufana neoli, isepha, udaka, njl.
Ngokutsho iimpawu zokupholisa amanzi, amanzi H ingasetyenziselwa ukucima kunye nokupholisa carbon steel forgings kunye nobungakanani icandelo elincinane kunye shape.Quenching elula, kufuneka kwakhona uqaphele: gcina ubushushu bamanzi ngaphantsi kwama-40 ℃, eyona ilungileyo phakathi 15 ukuya 30 ℃, kwaye ugcine ukujikeleza kwamanzi okanye ulwelo, ukutshabalalisa umphezulu umphezulu inwebu umphunga, kananjalo ungenza ukusebenzisa i-swing umsebenzi inwebu umsebenzi up okanye ukwenza umsebenzi ujingi. ukuphazamisa inwebu yomphunga, ukwandisa iqondo lokupholisa phakathi kwe-500-650 ℃, iimeko zokupholisa, ukuphepha ukuvelisa indawo ethambileyo.

Ukusuka:168 forgings net