1. Ni iki
Icyuma gisukuye gisukwa mu cyuho kibumbabumbwe gifite ishusho ibereye igice, kandi nyuma yo gukomera, igicuruzwa cyigice gifite imiterere runaka, ingano nubuziranenge bwubuso kiboneka, ibyo bita casting. Ibintu bitatu byingenzi: kuvanga, kwerekana, gusuka no gukomera. Inyungu nini: ibice bigoye birashobora gushingwa.
2. Gutezimbere abakinnyi
Umusaruro watangiye mu 1930 ukoresheje imashini za pneumatike hamwe nubutaka bwibumba ryibumba.
Ubwoko bw'umucanga bwa sima bwagaragaye mu 1933
Mu 1944, hagaragaye ubwoko bukonje bukomeye bwa resin sand shell
CO2 ikomye amazi yikirahuri cyumucanga cyagaragaye mumwaka wa 1947
Mu 1955, ubwoko bwa shitingi yumuriro resin sand shell bwagaragaye
Mu 1958, furan resin no-bake ibumba ryumucanga ryaragaragaye
Mu 1967, hagaragaye ifu ya sima itemba
Mu 1968, ikirahuri cyamazi hamwe nikomye kama
Mu myaka 50 ishize, uburyo bushya bwo gukora ibishushanyo mbonera hakoreshejwe uburyo bwa fiziki, nka: magnetiki pellet molding, uburyo bwo gufunga vacuum, uburyo bwo kubura ifuro, n'ibindi. Nka centrifugal casting, umuvuduko mwinshi, gutera umuvuduko muke, gukuramo amazi, nibindi.
3. Ibiranga gukina
A. Guhuza n'imihindagurikire y'ikirere no guhinduka. Ibicuruzwa byose byuma. Gukina ntabwo bigarukira kuburemere, ubunini n'imiterere y'igice. Uburemere bushobora kuva kuri garama nkeya kugeza kuri toni amagana, uburebure bwurukuta bushobora kuva kuri 0.3mm kugeza kuri 1m, kandi imiterere irashobora kuba ibice bigoye cyane.
B. Ibyinshi mubikoresho bibisi nubufasha bikoreshwa bikomoka cyane kandi bihendutse, nkibyuma bishaje n'umucanga.
C. Abakinnyi barashobora kuzamura uburinganire bwukuri hamwe nuburinganire bwubuso bwa casting hifashishijwe ikorana buhanga rya casting, kugirango ibice bishobore gucibwa bike kandi bitagabanijwe.
Igihe cyo kohereza: Kanama-11-2022