Inkqubo yokubunjwa kweqokobhe ikwabizwa ngokuba yinkqubo yokubumba iqokobhe. Yinkqubo yokubumba esetyenziswayo esebenzisa intlaka egqunywe isanti ukwenza umngundo. Kwinkqubo yokubunjwa kweqokobhe ukungunda kwenziwa njengeqokobhe. I-mold encinci okanye i-hollow mold isetyenziswe ukwenzela ukuba ubunzima be-mold buncinci kwaye ukuphatha i-mold kuba lula.
Ukwenza isikhunta esincinci, i-phenolic resin kunye nokongezwa okuncinci kwesanti ye-silica isetyenziswa njengezinto zokubumba. Ukwenza i-shell-mold casting idinga ukusetyenziswa kwepateni yesinyithi, i-oven, umxube wesanti-resin, ibhokisi yokulahla kunye nesinyithi esityhidiweyo.Ukwenziwa kweqokobhe lokungundaivumela ukusetyenziswa zombini intsimbi kunye non-ayiyoni, ezidla ngokusetyenziswa yintsimbi ezinyibilikisiweyointsimbi engwevu, i-ductile cast iron, carbon steel,intsimbi yengxubevange, insimbi engenasici, i-alloys ye-aluminium kunye ne-alloys yobhedu.
Amanyathelo oKwenza iqokobhe lokungunda
1. Ukudala ipateni - Ipateni yentsimbi emibini yenziwe ngokuma kwepatheni efunekayo.
2. Ukudala i-Mold - Okokuqala, isiqingatha sepateni nganye sifudumala ukuya kwi-175-370 ° C kwaye sifakwe nge-lubricant ukuze kube lula ukuhlukana ngokulula kwipatheni eyenziwe. Emva koko, ipateni efudumeleyo ibotshelelwe kwibhokisi yokulahla. Ibhokisi yokulahla iguqulwe, ivumela lo mxube wentlaka yentlabathi ukuba ugqume ipateni. Ipateni eshushu iphilisa ngokuyinxenye umxube, ngoku yenza iqokobhe elijikeleze ipateni. Isiqingatha sepateni nganye kunye neqokobhe elijikelezileyo liyanyangwa ukuba ligqitywe kwi-oveni kwaye emva koko iqokobhe likhutshiwe kwipatheni.
3. Ukudityaniswa kokungunda – Iziqingatha ezibini zeqokobhe zidityanisiwe kwaye zibotshwe ngokukhuselekileyo ukwenza iqokobhe elipheleleyo lokungunda. Ukuba kukho ii-cores ezifunekayo, zifakwe ngaphambi kokuvala i-mold. Emva koko i-shell mold ifakwa kwi-flask kwaye ixhaswe yinto exhasayo.
4. Ukugalela - Isikhunta siboshwe ngokukhuselekileyo kunye ngelixa isinyithi esityhidiweyo sigalelwa kwi-ladle kwi-gating system kwaye igcwalise i-mold cavity.
5. Ukupholisa - Emva kokuba i-mold izaliswe, isinyithi esityhidiweyo sivumelekile ukuba sipholile kwaye siqiniswe kwisimo sokuphosa esifunwayo.
6. Ukususwa kwe-casting - Emva kokuba intsimbi etyhidiweyo ipholile, isikhunta siphukile kwaye i-casting isusiwe. Iinkqubo zokunquma kunye nokucoca zenziwa ukuze kususwe nayiphi na isinyithi engaphezulu kwi-feed system kunye nokwahlula amasuntswana amancinci esanti kwi-mold.
Iimpawu zeNkqubo yokuBumba iShell:
- • Kwinkqubo yokubumba iqokobhe ubukhulu kunye nobunzima bomngundo buncinci.
- • Izinga lemveliso yokungunda iqokobhe liphezulu kakhulu.
- • Ngenxa ye-porosity ephantsi yokungunda, ngokunyuka kufuneka kusetyenziswe.
- • Iluncedo kwimisebenzi kuphela esetyhula kunye ne-symmetrical.
- • Iimilo ezintsokothileyo kakhulu azinakwenziwa kusetyenziswa indlela yokubunjwa kweqokobhe.
- • Le nkqubo ivelisa isakhelo esichanekileyo esine-dimensional xa kuthelekiswa nezinyeinkqubo yokugalela isanti.
- • Ii-engile zedrafti ezisezantsi zingasetyenziswa.
Ixesha lokuposa: Sep-30-2021