IiMpawu zeNkqubo yokuSasa ngokuChaneka

intsimbi stainless ngokuchaneka casting igcwele amandla ngundo. Kwi-castings encinci kunye neyinkimbinkimbi, i-fluidity ephezulu iyadingeka, ngaphandle koko, yonke i-mold ayikwazi ukuzaliswa. Ukulahlwa kuba yinkunkuma. I-fluidity echanekileyo yensimbi engenasici inxulumene ikakhulu nokwakhiwa kweekhemikhali kunye nokushisa okuthululwayo. Ngokomzekelo, i-alloys enamalungu e-eutectic okanye kufuphi ne-eutectic components, kunye nee-alloys ezinoluhlu oluncinci lobushushu bemveliso, zine-fluidity enhle; i-phosphorus kwintsimbi etyhidiweyo inokuphucula ubumanzi, ngelixa isulfure isenza ulwelo lube mandundu. Ukonyuka kwamaqondo obushushu okugalela kunokuphucula ubumanzi.

Ekubeni ukucutheka kwentsimbi echanekileyo yokuphosa intsimbi kudlula kakhulu intsimbi etyhidiweyo, ukuze kuthintelwe imingxunya ecuthekileyo kunye neziphene ezicuthekayo kwi-castings, uninzi lweenkqubo zokuphosa zithatha amanyathelo afana nokunyuka, intsimbi ebandayo, kunye nenkxaso-mali yokufezekisa ukuqina okulandelelanayo.

Ukuthintela ukwenzeka kwemingxuma yokuncipha, i-shrinkage porosity, i-pores kunye nokuqhekeka kwi-castings yensimbi engenasici, ubukhulu bodonga kufuneka bufane, iikona ezibukhali kunye nezakhiwo ze-angle ekunene kufuneka ziphetshwe, i-sawdust yongezwa kwisanti yokuphosa, i-coke yongezwa. ukuya kumbindi, kunye nohlobo olumngxuma Ii-cores kunye ne-oyile yentlabathi ye-oyile ukuphucula ukubuyiswa kunye nokunyanzeliswa komoya kwi-molds yesanti okanye i-cores.

Ngenxa yokungabi namanzi kwentsimbi etyhidiweyo, ukuze kuthintelwe imiqobo ebandayo kunye nokugalelwa okwaneleyo kweentsimbi zentsimbi, ubukhulu bodonga lwentsimbi yensimbi akufanele bube ngaphantsi kwe-8mm; sebenzisa ukuphosa okomileyo okanye ukuphosa okushushu; ngokufanelekileyo ukwandisa iqondo lobushushu lokugalela, ngokubanzi 1520 ° ~ 1600 ° C , Ngenxa yokuba ubushushu bokugalela buphezulu, intsimbi etyhidiweyo ineqondo eliphezulu lokufudumeza, kwaye ihlala imanzi ixesha elide, kwaye ukumanzi kunokuphuculwa. Nangona kunjalo, ukuba iqondo lobushushu lokugalela liphezulu kakhulu, liya kubangela iziphene ezinje ngeenkozo ezirhabaxa, iintanda ezishushu, iipores kunye nokuncamathela kwesanti. Ngoko ke, ngokubanzi, ukutyhilwa okuchanekileyo okuncinci, okuncinci, kunye ne-complex-shaped-shaped, iqondo lokushisa limalunga neqondo lokunyibilika kwentsimbi + 150℃; isakhiwo senkqubo yokuthulula silula kwaye ubukhulu becandelo bukhulu kunolo lwentsimbi; iqondo lobushushu elithululwayo leentsimbi ezinkulu nezityebileyo ezinodonga Kumalunga ne-100°C ngaphezulu kunendawo yokunyibilika kwayo.