1, kwindawo eqhelekileyo ye-austenitic isothermal transition diagram, oko kukuthi, malunga ne-500-600 ℃, amanzi akwinqanaba lefilimu yomphunga, kwaye isantya sokupholisa asikhawulezi ngokwaneleyo, esihlala sikhokelela "kwindawo ethambileyo" eyenziwe ngu. Ukupholisa okungalinganiyo kunye nesantya esinganelanga sokupholisa sokwenza. Kwinkqubo yokuguqulwa kwe-martensitic, oko kukuthi, malunga ne-300-100 ℃, amanzi akwinqanaba lokubilisa, isantya sokupholisa sikhawuleza kakhulu, kulula ukwenza isantya senguqu ye-martensitic sikhawuleza kakhulu kwaye ukuvelisa inani elikhulu loxinzelelo lwangaphakathi, olukhokelela kwi-deformation yokubunjwa okanye ukuqhekeka.

I-2, ubushushu bamanzi bunempembelelo enkulu kumthamo wokupholisa, ngoko ke bunovakalelo kutshintsho lobushushu bendawo. Njengoko ubushushu bamanzi bukhula, umthamo wokupholisa uyancipha kakhulu, kwaye uluhlu lobushushu bomgangatho ophezulu wokupholisa lufudukela kwiqondo eliphantsi. kukhokelela ekubunjweni ukuba kungabi lukhuni, kodwa kunempembelelo encinane kwisantya sokupholisa kuluhlu lwenguqu ye-martensite.Xa ubushushu bamanzi bunyuswa ukuya kuma-60 ℃, izinga lokupholisa liya kuncipha malunga ne-50%.

3, xa amanzi equlethe igesi eninzi (njengamanzi amatsha), okanye amanzi axutywe nokungcola okunganyibilikiyo, okufana neoli, isepha, udaka, njl.
Ngokweempawu zokupholisa zamanzi, amanzi H angasetyenziselwa ukucima kunye nokupholisa i-carbon steel forgings kunye nobukhulu becandelo elincinci kunye ne-shape.Quenching elula, kufuneka uqaphele: gcina ubushushu bamanzi ngaphantsi kwe-40 ℃, eyona nto ingcono phakathi kwe-15 ukuya kwi-30 ℃ , kwaye ugcine ukujikelezwa kwamanzi okanye ulwelo, ukutshabalalisa inwebu yokubumba umphezulu womphezulu, unokusebenzisa icwecwe lokujingisa ngexesha lokucinywa (okanye wenze i-workpiece ishukuma phezulu naphantsi) indlela yokuguqula inwebu yomphunga, ukwandisa iqondo lokupholisa phakathi kwama-500-650 ℃, iimeko zokupholisa, kunqanda ukuvelisa indawo ethambileyo.

Ukusuka:168 forgings net