Amandla okugcwalisa ensimbi encibilikisiwe, eyaziwa nangokuthi i-fluidity, iyisici esibalulekile enqubweni yokuphonsa. Kubhekiselwa emandleni ensimbi encibilikisiwe ukugcwalisa isikhunta ngokuphelele ngaphambi kokuqina. Ukuqonda nokwenza kahle lesi sakhiwo kubalulekile ekukhiqizeni ukulingisa kwekhwalithi ephezulu ngamajiyometri ayinkimbinkimbi kanye nokukhubazeka okuncane.
Umqondo Oyisisekelo Wekhono Lokugcwalisa
Ikhono lokugcwalisa lensimbi encibilikisiwe linquma ukuthi insimbi igeleza kahle kangakanani futhi igcwalise imininingwane eyinkimbinkimbi yesikhunta. Kuthonywa izici eziningana ezihlanganisa ukwakheka kwensimbi, izinga lokushisa, nokwakheka kwesikhunta. Ikhono elihle lokugcwalisa liqinisekisa ukuthi ukusakaza kokugcina akunawo amaphutha afana nokungahambi kahle, ukuvala okubandayo, nezingxenye ezingaphelele. Lesi sakhiwo sibaluleke kakhulu ekukhiqizeni ama-castings anezindonga ezincane kanye nezingxenye ezinamajiyometri ayinkimbinkimbi.
Izici Ezithonya Ikhono Lokugcwalisa
1.Ukwakhiwa Kwensimbi: Ukwakheka kwamakhemikhali ensimbi encibilikisiwe kudlala indima ebalulekile ekuketshezini kwayo. Izinsimbi ezinamaphoyinti ancibilikayo aphansi ngokuvamile ziba noketshezi olungcono.
2.Izinga lokushisa: Izinga lokushisa lensimbi encibilikisiwe lilingana ngokuqondile nokumanzi kwayo. Amazinga okushisa aphakeme anciphisa i-viscosity yensimbi, athuthukise amandla ayo okugeleza esikhunjini. Kodwa-ke, amazinga okushisa aphezulu kakhulu angaholela ekwandeni kwe-oxidation kanye nokumuncwa kwegesi, okungabangela ukukhubazeka ekubunjweni.
3.Isikhunta Design: Idizayini nempahla yesikhunta ithinta kakhulu ikhono lokugcwalisa. Isikhunta esinezindawo ezibushelelezi kanye nezinhlelo zokungena ezifanele kusiza ukugeleza okungcono.
4.Ukuthulula Izinga: Izinga okuthelwa ngalo insimbi encibilikisiwe esikhunjeni lithinta ikhono layo lokugcwalisa umgodi. Izinga lokuthulula elilawulwayo nelilinganayo liqinisekisa ukuthi insimbi igcina izici zayo zokushisa nokugeleza, ivimbela ukuqina ngaphambi kwesikhathi.
5.Izithasiselo: Izithasiselo ezithile zingangeniswa ukuze kuthuthukiswe uketshezi lwensimbi encibilikisiwe. Isibonelo, i-silicon ivame ukungezwa kuma-alloys e-aluminium ukuze kuthuthukiswe uketshezi lwawo, okuwenza afaneleke kakhulu ekubunjweni okuyinkimbinkimbi.
Izinyathelo Zokuthuthukisa Ikhono Lokugcwalisa
1.Ukukhetha Okufanelekile Kwengxubevange: Ukukhetha ama-alloys anezakhiwo ezinhle ze-fluidity kuyisinyathelo sokuqala sokuthuthukisa ikhono lokugcwalisa. Isibonelo, ama-alloys e-aluminium-silicon akhethwa ngenxa ye-fluidity yawo ephakeme kanye nokukhipha kalula.
2.Ukulawula izinga lokushisa: Ukugcina izinga lokushisa elilungile lensimbi encibilikisiwe kuyo yonke inqubo yokuphonsa kubalulekile. Ukushisa kuqala isikhunta nokulawula izinga lokushisa lokuthulula kungathuthukisa kakhulu uketshezi. Ukusebenzisa izinhlelo zokuqapha izinga lokushisa kusiza ekuzuzeni imiphumela engaguquki.
3.Idizayini Yesikhunta Ethuthukisiwe: Ukuklama isikhunta esinezindawo ezibushelelezi, umoya owanele, nezinhlelo zokungena ezihlelwe kahle kungenza kube lula ukugeleza kwensimbi okungcono.
4.Ukusetshenziswa kwe-Inoculants kanye ne-Fluxes: Ukwengeza ama-inoculants kungacwenga isakhiwo sokusanhlamvu sensimbi, kuthuthukise uketshezi lwaso. Ama-Fluxes angasetshenziswa futhi ukususa ukungcola nokunciphisa ukungezwani kwendawo, kuthuthukise izici zokugeleza kwensimbi encibilikisiwe.
5.Ukukhipha umoya: Ukukhipha amagesi ancibilikisiwe ensimbi encibilikisiwe kungavimbela ukwakheka kwama-bubbles kanye ne-voids, ukuthuthukisa ikhono lokugcwalisa jikelele.
6.Amasu Okuthela Alawulwayo: Ukusebenzisa izinhlelo zokuthela ezizenzakalelayo kuqinisekisa ukugeleza okungaguquguquki nokulawulwayo kwensimbi encibilikisiwe esikhunjeni. Lokhu kunciphisa amathuba okuba nezinxushunxushu kanye nokuvala okubandayo, okuholela emandleni okugcwalisa angcono.
Isikhathi sokuthumela: Nov-08-2024