Matanho ekudzivirira kupwanyika kwediski remabhureki uye kusunuka: simbi yakanyungudutswa inopinzwa mu sprue zvakaenzana kuderedza kupisa kwediski munzvimbo uye kudzivirira kuumbwa kwenzvimbo dzinopisa dzekugadzira. Zvichienderana nemaonero ekusimbisa kwakaringana kwesimbi, zvikamu zvidiki zvakatetepa, kukosha kwekupwanyika kunowedzera, uye kusimbiswa kwakanyanya pakupwanyika. Nzira yekudyisa inogona kuva yekudyisa system yegeti kana yekudyisa riser. Kana chirongwa chekudyisa chegating system chashandiswa, musoro we sprue unogona kuwedzerwa zvakakodzera, senge kuwedzera kukwirira kwebhokisi repamusoro, kuwedzera gate ring, nezvimwewo; Cross runner ndiyo huru ye skimming nefloating air. Kana ichishandiswa shrinkage supplement, saizi yayo yechikamu inogona kuwedzerwa zvakakodzera; Sprue yemukati inofanira kuva pfupi, yakatetepa uye yakafara. Sprue yemukati ipfupi (sprue inochinjika iri pedyo ne casting). Nekuda kwesimba rekupisa kwe casting uye sprue inochinjika uye mafambiro e flow ye filling yesimbi yakanyungudutswa uye kudya, sprue yemukati haizosimbiswi uye kuvharwa pachine nguva, uye icharamba isina kuvharwa kwenguva yakareba. Zvitete (kazhinji) zvinogona kudzivirira kuumbwa kwemajoini anopisa panopinda mukati me sprue yemukati. Upamhi ndehwekuona kuti nzvimbo yakakwana yekupfuura. Kana casting yapinda muchikamu chekusimbisa chakaenzana chekuwedzera nekukotama kwe graphitization, simbi yakanyungudutswa iri mu ingate ichamira kuyerera uye ichaoma uye ichamira nenguva kuti ivandudze mwero wekushandiswa kwe graphitization self feeding, inova mhedzisiro yekugadzirisa inochinjika ye ingate pfupi, yakatetepa uye yakafara (riser neck) pakudyisa. Kune mamwe ma castings ane shrinkage yakakura, riser inogona kuiswa yekudyisa. Riser inonyanya kuiswa pakutanga kwe inner sprue, kana riser inogona kuiswa pakati pepakati kuti idyise disc kune rumwe rutivi rwe inner sprue. Kune zvikamu zvidiki zvakatetepa, matanho echipiri ekudzivirira anogona kushandiswa, kureva kuti, inoculant inogona kuwedzerwa mupakeji diki kuti ivandudze incoculation effect uye kukurudzira nucleation nekukura kwe graphite. Inogona kuwedzerwa pasi pepakeji uye kusukwa kuita simbi yakanyungudutswa.
