Ingcaciso
Ukuphosa utyalo-mali, okwakwaziwa njengokuphoswa kwewax elahlekileyo okanye ukuphosa ngokuchanekileyo, yindlela echanekileyo yokuphosa ngokuncinci kwaye akukho kusika. Izinto zokubumba utyalo-mali (ezidla ngokuba ziindawo zokunyibilika ezisezantsi ezifana newax) zisetyenziselwa ukwenza iisampulu zokubumba utyalo-mali kwaye zenze imodyuli. Emva koko ipeyinti (izinto ezichasayo) isetyenziswe kumphezulu wemodyuli. Emva kokumisa kunye nokuqina, imodyuli iyatshisa ukuze inyibilike izinto zokubumba. Igobolondo elingenalutho lenziwe, kwaye i-metal liquid ithululelwa kuyo emva kokushisa okuphezulu, kwaye ukuphosa kufunyenwe emva kokucoca.
Iimpawu zokwenziwa kotyalo-mali
I-1.I-Castings ine-high dimensional accuracy (CT4-CT7); uburhabaxa obuphantsi komhlaba (Ra1.6-6.3um). Isibonelelo sokusika se-castings sincitshisiwe, kwaye ukuphosa okukufutshane kwe-net-shape kungaphunyezwa.
I-2.Ikwazi ukuvelisa ii-castings ezinodonga oluncinci kunye neemilo ezinzima. Njengomamkeli wangaphambili (owenziwe ngamakhonkco angaphakathi nangaphandle kunye namacangci angama-14). Umzekelo, ii-injini ze-injini zine-0.7mm yobunzima obuncinci.
3.Izinto ze-alloy azikhawulelwanga. Intsimbi, ubhedu, i-aluminiyam, i-titanium, i-magnesium, njl.
4.Utyalo-mali lunemida ethile. Inkqubo inzima, umjikelezo wemveliso ude, kwaye ubungakanani be-castings akufanele bube bukhulu kakhulu.
Ukuhamba kwenkqubo
1.Yila kwaye wenze ukubumba.
I-mold esetyenziselwa ukwenza ipateni ye-wax ibizwa ngokuba yi-stamper. Kuyafuneka ukuba kubekho ukuchaneka okuphezulu komgangatho kunye nokugqitywa komphezulu. Yenziwe nge-aluminium alloy, intsimbi, i-fusible alloy, i-plaster okanye izinto zeplastiki ngokwebhetshi yokuvelisa.
2.Yenza iipateni zewax.
Izinto ze-wax mold zihlala zenziwe nge-50% yeparafini kunye ne-50% ye-stearic acid. Emva kokunyibilika, sebenzisa i-wax press ukucinezela i-wax yezinto eziphathekayo kwi-mold. Emva kokuqina, yikhuphe kwaye uyibeke emanzini abandayo ukupholisa ukunqanda ukonakala. Ukungunda kwe-sprue ngokuqhelekileyo kwenziwa ngentonga yeplanga okanye intonga ye-aluminiyam efakwe kwiqokobhe le-wax eyi-2-3mm, kwaye iipateni ze-wax zidityaniswe kwi-sprue mold kunye nemela yokufudumeza yombane ukwenza imodyuli.
3.Ukwenza iqokobhe.
Gxumela imodyuli kwingubo eyenziwe nge-quartz powder kunye neglasi yamanzi (okanye i-silica sol), yikhuphe, uyifefe ngesanti ye-quartz, uze uyifake kwi-hardener (esetyenziswa ngokuqhelekileyo i-ammonium chloride okanye i-aluminium chloride) isisombululo sokuyiqinisa kwi-Layer iigobolondo kwaye uphinda le misebenzi ingentla de i-shell shell ye-5-10 mm .
4.Ukukhupha iwaxini kunye nokuqhotswa.
Beka iqokobhe elibunjiweyo kwitanki yamanzi ashushu kwi-95-100℃ ukunyibilikisa ukungunda kwe-wax kwaye uyidadale ngaphandle. Emva koko bhaka iqokobhe lokungunda kwi-800-900 ℃ (igobolondo leglasi yamanzi) ukwandisa amandla kunye nokususa iqokobhe lokungunda. Ukufuma, i-wax eseleyo, i-saponification, njl.
5.Ukugalela kunye nokucoca.
Iqokobhe lokungunda elicinyiweyo lihlala ligalelwa ngelixa lishushu emva kokuba likhutshiwe eziko ukuze livelise iintsimbi ezinodonga olucekethekileyo. Emva kokuba ukugalela kupholile, tshabalalisa iqokobhe lokungunda, ukhuphe ukuphosa kwaye unqumle inkqubo yokugalela kunye nokunyuka, kwaye emva koko uqhube inkqubo yokugalela emva kokucubungula, oko kukuthi, sebenzisa i-sandblasting, i-dut blasting, i-alkali ebilayo kunye neendlela zokucoca i-electrochemical ukususa iqokobhe elishiyekileyo kunye ne-adhesive kumphezulu kunye nomngxuma wangaphakathi wokuphosa. Isanti, i-chloride, njl.
