Vacuum Castings

I-Vacuum Casting (Ukusakaza Kwengcindezi Emibi, Ukusakaza Kwengcindezi Eyehlisiwe noma Ukusakaza Kwenqubo ye-V) kusebenzisa isihlabathi esomile nokucindezela okungalungile ukuze kwakheke isikhunta sokusakaza. I-vacuum negative pressure casting iwuhlobo olulodwa lokusakazwa kwesihlabathi esomile futhi kudinga ukusetshenziswa kwemishini yokukhipha umoya ukuze kukhishwe umoya ngaphakathi kwesikhunta sokuphonsa, bese usebenzisa umehluko wengcindezi phakathi kwengaphakathi nangaphandle kwesikhunta ukumboza ifilimu yepulasitiki eshisayo amaphethini nezifanekiso. Isikhunta esibunjiwe sizoba namandla ngokwanele ukumelana nensimbi encibilikisiwe ngesikhathi sokubunjwa. Ngemva kokuthola isikhunta se-vacuum casting, gcwalisa ibhokisi lesihlabathi ngesihlabathi esomile ngaphandle kwe-binder, bese uvala indawo engaphezulu yesikhunta sesihlabathi ngefilimu yepulasitiki, kulandelwa i-vacuum ukwenza isihlabathi siqine futhi siqine. Ngemuva kwalokho, susa isikhunta, ubeke ama-sand cores, uvale isikhunta ukuze wenze konke kukulungele ukuthululwa. Ekugcineni, ukubunjwa kutholakala ngemva kokuba insimbi encibilikisiwe ipholile futhi iqina.