Inqubo esheshayo yokufaka isithonjana sokufakwa kwesithando somlilo

The isithando sokushisa sangaphakathi inqubo yokunciphiswa kwe-spheroidizing ngokushesha iyinqubo ehlanganisiwe yokuphothula eqedwa yisithando sokufudumeza sokungeniswa kanye nesigaba sokulungiselela sokuphamba, futhi isigaba sokuphothula siqedwa ngokushisa kwendabuko. Nikeza ukudlala okugcwele kuzici zezindlela ezimbili zokushisa bese uhlanganisa ukwakha inqubo entsha yokuqinisa okweqisayo.

Kusetshenziswa izici zokukhuphuka kwamazinga okushisa okusheshayo kwesithando sokufudumeza sokungeniswa ukuze kutholakale amandla, amakristalu okuqala amahle austenite ayatholakala, okudala imfuneko yokupholisa okulandelayo ukuthola okusanhlamvu okuhle. Ngokuya ngezimo ezahlukahlukene zokupholisa zokwenza kube lula, kutholakala izakhiwo ezahlukahlukene zokuqala zokuphamba. Izicubu zokulungiselela ezi-spheroidizing ezi-spheroidized futhi zenezelwa kusetshenziswa izindlela zokushisa zendabuko ekugcineni ukuthola izicubu ze-spheroidizing.

Ngokuya ngezimo ezahlukahlukene zokupholisa zokwenza kube lula, isakhiwo sokulungiselela sokuphamba sihlukaniswe ngezinhlobo ezintathu ezilandelayo:

(1) Isakhiwo sokulungiselela esenziwe nge-spheroidized esakhiwe ukupholisa komoya (ukujwayela) yi-pearlite.

(2) Isakhiwo sokulungiselela i-spheroidization esenziwe ukupholisa amanzi (ukucima) yi-martensite + igcinwe i-austenite.

(3) Isakhiwo sokuzilungiselela esenziwe ngompetha esenziwe ukupholisa amanzi (ukushisa okuphindaphindwayo nokucisha ngaphezu kwe-400 ° C) yi-sorbite.