Ubhedu luhlobo lwealloyi esekwe kobhedu eneTin. Ubunzima kunye namandla obhedu anyuka ngokunyuka komxholo weTin. I-ductility nayo iyancitshiswa ngokunyuka kwepesenti ye-tin ngaphezulu kwe-5. Xa i-aluminiyam iphinda yongezwa (4 ukuya kwi-11%), i-alloy ephumayo ibizwa ngokuba yi-aluminiyam yobhedu, enokumelana nokukhula okuphezulu kakhulu. Iibronzi zixabisa kakhulu xa zithelekiswa nobhedu ngenxa yobukho betoti eyintsimbi ebiza imali eninzi.Ubhedu lwaseTshayinaimveliso yokugalela ivacuumkunye neenkonzo zobuchwephesha be-CNC kunye neenkonzo zesiko le-OEM.
I-Vacuum Casting ikwabizwa ngokuba yi-Negative Pressure etywiniweyo, ukuNcitshiswa koxinzelelo okanyeV Inkqubo yokuSasa. Ukuphoswa koxinzelelo lwe-vacuum kufuna ukusetyenziswa kwezixhobo zokukhupha umoya ukukhupha umoya ngaphakathi kwendawo yokubumba, kwaye emva koko usebenzise umahluko woxinzelelo phakathi kwangaphakathi nangaphandle komngundo ukugubungela ifilimu eshushu yeplastiki kwipateni kunye netemplate. Ukubumba okutyhidiweyo kuya komelela ngokwaneleyo ukumelana nentsimbi etyhidiweyo ngexesha lokuphosa. Emva kokufumana i-vacuum 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.
Izinto eziluncedo kwiNkqubo yokuGcina iVacuum
I-1) I-vacuum castings inokuchaneka okuphezulu kwe-dimensional, i-outline ecacileyo kunye nomphezulu ogudileyo.
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.
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.
I-4) 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.
