I-Silicon For Metal Casting

I-Metal casting iyindlela yakudala ebilokhu ibalulekile empucukweni yabantu amakhulu eminyaka. Kusukela ekudaleni izithombe ezibaziweyo kuya ekukhiqizeni izingxenye zezimboni eziyinkimbinkimbi, ukubunjwa kwensimbi kudlala indima ebalulekile ezimbonini ezihlukahlukene.I-silicon, into evame ukuhlotshaniswa nobuchwepheshe obuphambili, ingenye yezinto eziwusizo kakhulu esintwini. Isetshenziswa kakhulu ukwenza i-aluminium-ama-silicone alloysfuthii-ferrosilicon(i-iron-silicon) alloys, iphinde ibe nomthelela omkhulu enqubweni yokukhipha insimbi. I-China, iRussia, iNorway, neBrazil ingabakhiqizi abakhulu bamaminerali e-silicon. Kulesi sihloko, sizongena ngokujulile ekusetshenzisweni kwe-silicon ekubunjweni kwensimbi, sihlola izakhiwo zayo, izinhlelo zokusebenza, nezindlela ezithuthukisa ngayo inqubo yokuphonsa.

Ukuqonda i-Silicon ku-Metal Casting

I-silicon iyinto ehlukahlukene esetshenziswa kakhulu ekubunjweni kwensimbi ngenxa yezakhiwo zayo ezihlukile. Uma ihlanganiswe nezinsimbi ezifana ne-aluminium, ithusi, nensimbi, i-silicon ithuthukisa amandla, ukuqina, nokungagqwala kwengxubevange ewumphumela. Lezi zakhiwo ezithuthukisiwe zemishini zenza ama-silicon alloys abaluleke kakhulu ezimbonini lapho ukuqina nokusebenza kubalulekile.

Kungani I-Silicon Ifanele Ukusakaza Kwensimbi

I-High Melting Point: I-Silicon inendawo ephezulu yokuncibilika, iyenza ifaneleke ekusetshenzisweni kwezinga lokushisa eliphezulu njengokuphonswa kwensimbi.
Ukwandiswa Okuphansi Kokushisa: I-Silicon inendawo ephansi yokwandisa ukushisa okushisayo, esiza ukunciphisa ingozi yokucindezeleka okushisayo phakathi nenqubo yokukhipha.
I-fluidity enhle: I-silicon ithuthukisa uketshezi lwensimbi encibilikisiwe, ivumela ukuthi igeleze kalula ezibunjeni eziyinkimbinkimbi nasezimbotsheni.
Amandla athuthukisiwe: I-Silicon inyusa amandla nobulukhuni bensimbi, ibenze ilungele izinhlelo zokusebenza ezidinga izakhiwo eziphezulu zemishini.

Izicelo ze-Silicon ku-Metal Casting

1. I-Aluminium Casting: I-silicon ivame ukusetshenziswa ekubunjweni kwe-aluminium ukuze kuthuthukiswe izakhiwo zemishini ye-alloy. Ama-alloys e-aluminium-silicon alula futhi anokumelana nokugqwala okuhle kakhulu, okuwenza alungele ukusetshenziswa kwe-aerospace nezimoto.

2. Insimbi: Ngensimbi ekhonjiwe, i-silicon yengezwa ku-iron empunga ukuze kuthuthukiswe ukwakheka kwama-graphite flakes, okuthuthukisa ukusebenza kwempahla kanye nezakhiwo zokudambisa. I-silicon iphinde ithuthukise ukumelana nokugqokwa kwama-ferroalloys.

3. Cast Steel: I-silicon isetshenziswa ensimbi encibilikisiwe ukuze ikhiphe insimbi encibilikisiwe futhi ithuthukise ubumanzi bayo. I-silicon iphinde isize ukulawula usayizi wokusanhlamvu wensimbi, okuholela ekubunjweni okuqinile, okuvumelana nezimo.

Iqhaza Le-Silicon Ekuthuthukiseni Inqubo Yokusakaza

I-fluidity ethuthukisiwe: I-silicon ithuthukisa uketshezi lwensimbi encibilikisiwe, ivumela ukuthi igcwalise kalula izimbotshana zesikhunta eziyinkimbinkimbi. Lesi sakhiwo sibalulekile ukuze kuzuzwe ukulingwa okuyinkimbinkimbi nokunemininingwane.

Ukunciphisa Ukuncipha: Ukwengeza i-silicon kuma-alloys ensimbi kusiza ukunciphisa amaphutha e-shrinkage ekubunjweni, ukuqinisekisa ukunemba kobukhulu nokunciphisa isidingo somshini owengeziwe.

Ukusebenza Okuthuthukisiwe: Ukusebenziseka kalula kulula ukucubungula. Lesi sakhiwo siwusizo ikakhulukazi ezinhlelweni ezidinga ukwenziwa kwemishini yangemva kokusakazwa.

Izinselelo Nokucatshangelwa

Ngenkathi i-silicon inikeza izinzuzo eziningi ekubunjweni kwensimbi, kunezinselelo ezithile okufanele zicatshangelwe:

1. Ukuqina: Ukuphakama kakhulu kokuqukethwe kwe-silicon kungabangela i-alloy brittleness, okungafaka engcupheni izici zayo zomshini. Idizayini efanele ye-alloy kanye nokulawulwa kokuqukethwe kwe-silicon kubalulekile ekuvimbeleni le nkinga.

2. I-Porosity: Uma ingalawulwa kahle, i-silicon ingandisa ingozi ye-porosity ekubunjweni. Kufanele kuthathwe ukucutshungulwa ngokucophelela kanye nezinyathelo eziqinile zokulawula ikhwalithi ukuze kuncishiswe i-porosity.

3. Izindleko: I-silicon iyinto ebiza kakhulu ethinta izindleko zizonke zokukhiqiza ama-alloys aqukethe i-silicon. Ukuhlaziywa kwezindleko zenzuzo kubalulekile ukuze kutholwe ukuthi kungenzeka yini ukusebenzisa i-silicon ohlelweni oluthile lokuphonsa.