Mchenga kuponyera zitsulo zitsulo kuponyera amatanthauza kupanga fusible chitsanzo ndi fusible zipangizo, ❖ kuyanika angapo zigawo za zokutira wapadera refractory pa izo, kuyanika ndi kuumitsa kupanga chipolopolo chofunika, ndiyeno ntchito nthunzi kapena madzi otentha kupanga nkhungu.Sungunulani chitsanzocho mu chipolopolo, kenaka ikani chipolopolocho mu bokosi la mchenga, mudzaze pozungulira ndi mchenga wouma, ikani nkhungu mu ng'anjo yowotcha chifukwa cha kutentha kwakukulu, ndikutsanulira chitsulo chosungunuka mu nkhungu kapena chipolopolo mutatha kuwotcha. Ndipo kupeza castings.
Njirayi ndikutenthetsa ma castings osiyanasiyana kutentha kwa 860-900 ℃, kusunga masanjidwewo onse austenitized, kenako kuziziritsa mumafuta kapena mchere wosungunuka kuti mukwaniritse kuzimitsa, kenako kutentha, kutentha, kutentha ndi kupsa mtima pa 250-350 ℃, ndi masanjidwewo oyambilira amasinthidwa kukhala Tempered martensite ndikusungidwa austenite, mawonekedwe ozungulira ozungulira a graphite amakhalabe osasinthika.Kuponyedwa kwa ductile kumafuna kuuma kwakukulu ngati mayendedwe, ndipo magudumu osagwira ntchito nthawi zambiri amazimitsidwa ndikutenthedwa pa kutentha kochepa.
Ma castings omwe amathandizidwa amakhala ndi kuuma kwakukulu komanso kulimba kwina, Liaoning cast iron imasunga mafuta odzola a graphite, ndipo kukana kovala kumapangidwanso bwino.Zogulitsa zomwe zimapezedwa popanga ndalama zimakhala zovuta, pafupi ndi mawonekedwe a magawowo, ndipo zitha kugwiritsidwa ntchito mwachindunji popanda kapena kukonza pang'ono.Sikoyenera kokha kuponyera mitundu yosiyanasiyana ndi ma aloyi, komanso kumapanga castings ndi apamwamba dimensional molondola ndi pamwamba khalidwe kuposa njira zina kuponyera, ndipo ngakhale zovuta, kutentha kugonjetsedwa ndi zovuta pokonza castings kuti n'zovuta kuponyedwa ndi kuponyera ena. njira.Ikhoza kuponyedwa ndi kuponyedwa kwa ndalama.
Nthawi yotumiza: Feb-28-2022
