Mukawonjezera kaboni ku chitsulo chosungunuka, kodi munthu ayenera kusankha graphitized petroleum coke kapena calcined coal?

[] Ndikofunikira kusankha graphitized petroleum coke ngati carburizer ya ductile iron pazifukwa zotsatirazi:

1. Mankhwala apamwamba kwambiri:
   • Coke ya petroleum yokhala ndi grafiti: Nthawi zambiri imakhala ndi kaboni woposa 99.5% ndi sulfure wochepera 0.05%. Makhalidwe a kaboni wochuluka ndi sulfure wochepa amathandiza kuwonjezera kuchuluka kwa kaboni mu ductile iron pomwe amachepetsa zotsatira zoyipa za sulfure pa nodularization ndi graphitization, motero amaletsa zolakwika mu castings.
   • Carburizer ya anthracite yokhala ndi calcined: Nthawi zambiri imakhala ndi carbon complex ya 90-93% ndi sulfure ya 0.3-0.5%. Kuchepa kwa carbon ndi sulfure ya 0.3-0.5% kungapangitse kuti sulfure ichuluke mu castings, zomwe zimakhudza mphamvu ya nodularization ndi mphamvu ya casting.
2. Kugwiritsa ntchito bwino kwambiri kwa mayamwidwe:
   • Koke ya petroleum yokhala ndi grafiti: Potengera chithandizo cha graphitization chotentha kwambiri, maatomu a kaboni amakonzedwa mwadongosolo, ndikupanga kapangidwe ka graphite yopyapyala. Izi zimathandiza kusungunuka mwachangu ndi kuyamwa kwa chitsulo chosungunuka, zomwe zimapangitsa kuti carburization ikhale yogwira ntchito bwino komanso kuwonjezera bwino kuchuluka kwa kaboni mu chitsulo chosungunuka.
   • Calcined anthracite carburizer: Ndi carbon yochepa, imasungunuka pang'onopang'ono ndipo imakhala ndi mphamvu yochepa yoyamwa, zomwe zingatalikitse nthawi yosungunuka ndikuwonjezera mphamvu zomwe zimagwiritsidwa ntchito.
3. Zotsatira pa nodularization ndi graphitization:
   • Graphitized petroleum coke: Sulphur yochepa imachepetsa kusokoneza kwa chogwirira ntchito cha nodularizing, zomwe zimathandiza kukwaniritsa zotsatira zabwino za nodularizing ndi mawonekedwe a graphite, motero zimakweza mphamvu zamakina za ductile iron.
   • Calcined anthracite carburizer: Kuchuluka kwa sulfure kungasokoneze njira yopangira nodularization, zomwe zimakhudza nucleation ndi kukula kwa graphite, zomwe zimapangitsa kuti zinthu zotayidwa ziwonongeke.
4. Ubwino woponya:
   • Coke ya petroleum yojambulidwa ndi grafiti: Kugwiritsa ntchito kumabweretsa ubwino wapamwamba wa zitsulo, kukulitsa mphamvu ndi kulimba kwa chitsulo chosungunuka ndikuchepetsa zolakwika monga porosity ndi shrinkage, motero kumakweza kuchuluka kwa zoyenerera za chinthucho.
   • Carburizer ya anthracite yokhala ndi calcined: Chifukwa cha kuchuluka kwa sulfure, ingayambitse ma porosity mu castings ndikuchepetsa mphamvu zamakina, zomwe zimakhudza ubwino wa castings.
5. Mtengo wogwiritsira ntchito:
   • Coke ya petroleum yokhala ndi grafiti: Ngakhale mtengo wake ukhoza kukhala wokwera pang'ono kuposa wa calcined anthracite carburizer, mphamvu yake yayikulu ya carburizer imachepetsa kuchuluka kwa carburizer yomwe imafunika, zomwe zimachepetsa ndalama zosungunula. Kuphatikiza apo, imapangitsa kuti zinthu zizikhala bwino komanso imachepetsa kuchuluka kwa zinyalala, zomwe zimapangitsa kuti ndalama zogwiritsidwa ntchito zichepe.
   • Calcined anthracite carburizer: Ngakhale mtengo wake ndi wotsika, mphamvu yake yotsika yoyamwa ingafunike kugwiritsidwa ntchito kwambiri, ndipo ingakhudze ubwino wa kuponyera, zomwe zimapangitsa kuti ndalama zogwirira ntchito zikhale zapamwamba.