1- Yintoni iVacuum Casting?
I-Vacuum Casting ikwabizwa ngokuba yi-Negative Pressure etywiniweyo yokuCasa, ukuNcitshiswa koxinzelelo okanyeV Inkqubo yokuSasa. I-vacuum yokuphosa uxinzelelo olubi lolunye uhlobo lokuphosa kwesanti eyomileyo kwaye ifuna ukusetyenziswa kwezixhobo zokukhupha umoya ukukhupha umoya ngaphakathi kwendawo yokubumba, kwaye usebenzise umahluko woxinzelelo phakathi kwangaphakathi nangaphandle komngundo ukugubungela ifilimu yeplastiki eshushu iipateni kunye neetemplates. Ukubumba okutyhidiweyo kuya komelela ngokwaneleyo ukumelana nentsimbi etyhidiweyo ngexesha lokuphosa. Emva kokufumana i-vacuum casting mold, gcwalisa ibhokisi yesanti ngesanti eyomileyo ngaphandle kwe-binder, kwaye emva koko uvale umphezulu wesanti yokubumba ngefilimu yeplastiki, ulandelwe yivacuum ukwenza isanti iqine kwaye iqine. Emva koko, susa i-mold, ubeke iinqununu zesanti, uvale i-mold ukwenza yonke into ilungele ukugalelwa. Ekugqibeleni, ukuphosa kufunyenwe emva kokuba isinyithi esityhidiweyo sipholile kwaye siqiniswe.
2- Ziziphi izinto eziluncedo kwiVacuum Casting?
1) Iukuphoswa kwevacuumbabe nokuchaneka okuphezulu komgangatho, ulwandlalo olucacileyo kunye nomphezulu ogudileyo.
2) Akukho zibophelelo, amanzi kunye nezongezo kwintlabathi yokubumba, eyenza ukuqhutyelwa kwesanti kube lula.
3) Kulula ukucoca i-vacuum castings. Iigesi ezinobungozi ezincinci ziveliswa ngexesha lenkqubo yokuphosa.
4) Iintsimbi zokufunxa zingasetyenziswa kwi-auluhlu olubanzi lwamashishini. Ingasetyenziselwa imveliso yebhetshi encinci yesiqwenga esinye kunye nemveliso yobuninzi, ngakumbi iicastings ezinkulu neziphakathi kunye neentsimbi ezinodonga olucekethekileyo zifaneleke ngakumbi ukuphosa ivacuum.
3- Zeziphi iiMetal kunye neeAlloys ezinokuphoswa ngokuGutyulwa kweVacuum?
• I-ayini ye-Grey Cast, i-Ductile Cast iron
• Intsimbi yeCarbon: Ikhabhoni ephantsi, ikhabhoni ephakathi kunye nentsimbi yekhabhoni ephezulu
• I-Cast Steel Alloys: Insimbi ye-alloy ephantsi, intsimbi ephezulu ye-alloy, intsimbi ekhethekileyo ye-alloy
• I-aluminiyam kunye neengxube zazo
• IBras & Copper.
4- Ngawaphi amashishini asetyenziselwa iVacuum Castings?
Njengoko kukhankanyiwe ngasentla kwiingenelo zokuphosa i-vacuum, i-vacuum castings ingasetyenziswa kuluhlu olubanzi lwamashishini. Ingasetyenziselwa imveliso yebhetshi encinci yesiqwenga esinye kunye nemveliso yobuninzi, ngakumbi iicastings ezinkulu neziphakathi kunye neentsimbi ezinodonga olucekethekileyo zifaneleke ngakumbi ukuphosa ivacuum. Ke ngoko, ii-vacuum castings zisetyenziswa kakhuluoomatshini bezolimo, iinkqubo zehydraulic, iimoto zothutho zikaloliwe, iikhreyini kunye namashishini okwakha iinqanawa.
5- Luluphi uNyamezelo lokuCasa olunokufikelelwa yiNkqubo yeVacuum Casting?
Ngexesha lokukhutshwa kwe-vacuum, ngenxa yokuba umphezulu wemodeli uhlanganiswe nefilimu yeplastiki, akukho mfuneko yokungcangcazela okanye ukunkqonkqoza xa udonsa isikhunta. Ukufunxa kunye noxinzelelo olubi lwenza ukuba isanti yokubumba ihlangane, kwaye ukuqina kobunjwa besanti kuphezulu kwaye kufana. Ngaphantsi kobushushu besinyithi esinyibilikisiweyo, umngxuma awukho lula ukuwukhubaza. Ngaphezu koko, ubukho boxinzelelo olubi bukulungele ukuzaliswa ngokupheleleyo kwesinyithi esinyibilikisiweyo kwimodeli. Uburhabaxa bomphezulu benkqubo ye-V ye-castings inokufikelela ku-Ra = 25 ~ 2.5μm. Inqanaba lonyamezelo lwe-dimensional of castings linokufikelela kwi-CT5 ~ CT7. Umgangatho wembonakalo yokuphosa uxinzelelo olubi lulungile, kwaye umgangatho wangaphakathi uthembekile.