Iifa ezimbini zisetyenziselwa ukuphosa ukufa;enye ibizwa ngokuba “yi-cover die half” kwaye enye ibizwa ngokuba “yi-ejector die half”.Apho badibana khona kuthiwa ngumgca wokwahlulahlula.Isigubungelo sokufa siqulethe i-sprue (yoomatshini begumbi elishushu) okanye umngxuma wokudubula (oomatshini begumbi elibandayo), evumela ukuba isinyithi esinyibilikisiweyo sigeleze kwi-dies;olu phawu luhambelana nombhobho wokutofa koomatshini begumbi elishushu okanye igumbi lokudutyulwa koomatshini begumbi elibandayo.I-ejector die iqulethe izikhonkwane ze-ejector kwaye ngokuqhelekileyo imbaleki, eyona ndlela isuka kwi-sprue okanye umngxuma wokudubula ukuya kwi-mold cavity.Idiyizi yokugquma ikhuselwe kwindawo emileyo, okanye ngaphambili, kwiplaten yomatshini wokugalela, ngelixa i-ejector die incamathele kwiplaten eshukumayo.Umgodi wokungunda usikwa ube ziziqwenga ezibini zomngxuma, eziziingceba ezahlukeneyo ezinokutshintshwa ngokulula kwaye zibotshwe kwiihafu zokufa.

I-dies yenzelwe ukuba ukuphosa okugqityiweyo kuya kutyibilika kwisiqingatha sekhava yefa kwaye uhlale kwisiqingatha se-ejector njengoko iifa zivulwa.Oku kuqinisekisa ukuba ukuphosa kuya kukhutshwa kumjikelo ngamnye kuba isiqingatha se-ejector sinezikhonkwane ze-ejector ukutyhala ukukhutshelwa ngaphandle kweso siqingatha sokufa.Izikhonkwane ze-ejector ziqhutywe nge-ejector pin plate, eqhuba ngokuchanekileyo zonke izikhonkwane ngexesha elifanayo kunye namandla afanayo, ukwenzela ukuba ukuphosa kungonakaliswe.I-ejector pin plate iphinda ihoxise izikhonkwane emva kokukhupha i-casting ukulungiselela ukudubula okulandelayo.Kufuneka kubekho izikhonkwane ze-ejector ezaneleyo ukugcina amandla apheleleyo kwiphini nganye ephantsi, kuba ukuphosa kuseshushu kwaye kunokonakaliswa ngamandla agqithisileyo.Izikhonkwane zisashiya uphawu, ngoko ke kufuneka zibekwe kwindawo apho la manqaku engayi kuyiphazamisa injongo yokuphosa.

Amanye amacandelo okufa abandakanya ii-cores kunye nezilayidi.I-cores zizinto ezivame ukuvelisa imingxuma okanye ukuvula, kodwa zingasetyenziselwa ukudala ezinye iinkcukacha.Zintathu iindidi zeecores: ezizinzileyo, ezishenxisekayo, nezikhululekileyo.Ii-cores ezilungisiweyo zezo zilungelelaniswe ngokunxuseneyo necala lokutsalwa kwee-dies (okt isalathiso sokufa sivulekile), ngoko ke zigxininiswe, okanye zincanyathiselwe ngokusisigxina kwidayi.Iicores ezishukumayo zezo ezijoliswe kuyo nayiphi na enye indlela ngaphandle kokuhambelana nesalathiso sokutsalwa.Ezi cores kufuneka zisuswe kumngxuma wokufa emva kokuba udubulo lomelele, kodwa ngaphambi kokuba lufe luvuleleke, kusetyenziswa indlela eyahlukileyo.Izilayidi ziyafana neecores ezihambayo, ngaphandle kokuba zisetyenziselwa ukwenza umphezulu ophantsi.Ukusetyenziswa kweecores ezihambayo kunye nezilayidi zonyusa kakhulu iindleko zokufa.Iicores ezikhululekileyo, ezikwabizwa ngokuba yi-pick-outs, zisetyenziselwa ukuphosa iimpawu ezintsonkothileyo, njengemingxuma enemisonto.Ezi cores ezikhululekileyo zifakwe kwi-die ngesandla phambi komjikelo ngamnye kwaye zikhutshwe kunye nenxalenye ekupheleni komjikelo.Undoqo ke kufuneka ususwe ngesandla.I-Lose cores yolona hlobo lubiza kakhulu lwe-core, ngenxa yomsebenzi owongezelelweyo kunye nexesha lokunyuka komjikelo.Ezinye izinto kwiidies ziquka iipaseji zokupholisa amanzi kunye neendawo zokuphuma ecaleni kwemigca yokwahlula.Le mijelo idla ngokuba banzi kwaye ibhityile (malunga ne-0.13 mm okanye i-0.005 ngaphakathi) ukuze xa isinyithi esinyibilikisiweyo siqala ukuzalisa isinyithi siqina ngokukhawuleza kwaye sinciphise i-scrap.Akukho zinyuka zisetyenziselwa ngenxa yokuba uxinzelelo oluphezulu luqinisekisa ukutya okuqhubekayo kwesinyithi ukusuka kwisango.

Izinto ezibaluleke kakhulu zezinto zokufa zixhatshazwa yi-thermal shock kunye nokuthamba kwiqondo lokushisa eliphakamileyo;ezinye iimpawu ezibalulekileyo zibandakanya ukuqina, ukunyanzeliswa, ukuchasana nokushisa ukujonga, ukuthungatha, ukufumaneka (ingakumbi ngokufa okukhulu), kunye neendleko.Ubomi obude bokufa buxhomekeke ngokuthe ngqo kubushushu besinyithi esinyibilikisiweyo kunye nexesha lomjikelo.[16]Iifa ezisetyenziselwa ukuphosa i-die ngokuqhelekileyo zenziwe ngeentsimbi zesixhobo esomeleleyo, kuba isinyithi esityhidiweyo asinako ukumelana noxinzelelo oluphezulu olubandakanyekayo, ngoko ke ukufa kubiza kakhulu, okubangelwa iindleko eziphezulu zokuqalisa.Izinyithi eziphoswa kumaqondo obushushu aphezulu zifuna ukufa okwenziwe ngeentsimbi eziphezulu zealloy.

Eyona ndlela yokusilela yokufa kukunxitywa okanye ukhukuliseko.Ezinye iindlela zokusilela kukujonga ubushushu kunye nokudinwa kwe-thermal.Ukujonga ubushushu kuxa iintanda kumphezulu zenzeka kwifa ngenxa yotshintsho olukhulu lobushushu kumjikelo ngamnye.Ukudinwa kwe-Thermal kuxa iintanda zomphezulu zenzeka kwifa ngenxa yenani elikhulu lemijikelo.