Gutera umubiri wa valve nigice cyingenzi mubikorwa byo gukora valve, kandi ubuziranenge bwa casting bugena ubwiza bwa valve. Ibikurikira byerekana uburyo busanzwe bwo gutoranya inganda za valve:
Gutera umucanga:
Umucanga wumucanga ukunze gukoreshwa mubikorwa byinganda za valve urashobora kugabanywa mumucanga utose, umucanga wumye, sodium silikatike yumucanga na furan resin yo kwinangira umusenyi ukurikije binders zitandukanye.
(1) Umusenyi wicyatsi ninzira yo kubumba hamwe na bentonite nka binder.
Ibiranga ni: ifu yumucanga ntikeneye gukama, ntigomba gukomera, ifu yumucanga ifite imbaraga zitose, intandaro yumucanga nigikonoshwa bifite imbaraga zo kwihanganira, byorohereza isuku ya casting. Ubushobozi buhanitse bwo kubumba umusaruro, kuzenguruka kwigihe gito, igiciro gito cyibikoresho, byoroshye gutunganya umusaruro winteko.
Ibibi byayo ni: gutora byoroshye kubyara inenge nko gutinyuka, gushyiramo umucanga no gufatira umucanga, kandi ubwiza bwa casting, cyane cyane ubwiza bwimbere, ntabwo ari byiza.
Ikigereranyo nimiterere yumucanga wicyatsi kumyuma ni ibi bikurikira:
| Inomero y'uruhererekane | ikigereranyo cyo kuvanga% | imikorere | intego | ||||||||
| Umusenyi mushya | Umusenyi ushaje | Bentonite | sodium karubone | dextrin | pulp | ibirimo amazi % | Ikirere AFS | Imbaraga zo guhonyora KPa | |||
| Itsinda ingano | Umubare wongeyeho | ||||||||||
| 1 | 10 | 100 | 9/11 | 0.2 | 0.2 / 0.4 | 3.8 / 4.3 | 100/200 | 56/77 | Umucanga kubikoresho bito bito | ||
| 2 | 15 | 50 | 50 | 3 | 0.4 | 0.6 / 1.2 | 4 / 4.7 | 100 | 50/75 | Umucanga wo kubumba imashini | |
. Ongeramo bike bentonite irashobora kunoza imbaraga zayo.
Ibiranga ni:ifu yumucanga igomba gukama, ifite umwuka mwiza, ntabwo byoroshye kubyara inenge nko gukaraba umucanga, gufata umusenyi nu mwobo wumwuka, kandi ubwiza bwimbere muri casting nibyiza.
Ibibi byayo ni:gukenera ibikoresho byo kumisha umucanga, inzinguzingo ni ndende.
Igihe cyo kohereza: Gashyantare-03-2021
