Amanyathelo okuthintela ukushwabana kwediski yebrake kunye nokungakhululeki: intsimbi enyibilikisiweyo ifakwa kwi-sprue ngokulinganayo ukunciphisa ubushushu bediski kwindawo ethile kunye nokuthintela ukwakheka kwamabala ashushu okwenziwa. Ngokwembono yokuqina okulinganayo kwe-iron castings, okukhona iindawo ezincinci ezinodonga oluncinci, kokukhona ixabiso lokushwabana liba likhulu, kwaye kugxininiswa ngakumbi kwi-shrinkage. Indlela yokutya ingaba kukutya kwenkqubo yokugada okanye ukondla ngokunyuka. Xa iskimu yokondla yenkqubo yokugada yamkelwe, intloko ye-sprue inokwandiswa ngokufanelekileyo, njengokunyusa ukuphakama kwebhokisi ephezulu, ukongeza i-gate ring, njl.njl.; I-cross runner yeyona yunithi iphambili yokukhupha umoya kunye nomoya odadayo. Xa isetyenziselwa ukongezwa kokushwabana, ubungakanani bayo becandelo bunokwandiswa ngokufanelekileyo; I-sprue yangaphakathi mayibe mfutshane, incinci kwaye ibanzi. I-sprue yangaphakathi imfutshane (i-sprue enqamlezileyo ikufutshane ne-casting). Ngenxa yempembelelo yobushushu ye-casting kunye ne-sprue enqamlezileyo kunye nesiphumo sokuhamba kokuzaliswa kwesinyithi esinyibilikisiweyo kunye nokondla, i-sprue yangaphakathi ayiyi kuqina kwaye ivalwe kwangaphambili, kwaye iya kuhlala ivuliwe ixesha elide. Ukubhitya (ngokubanzi) kunokuthintela ukwakheka kwamalungu ashushu adibanayo kwindawo yokungena ye-sprue yangaphakathi. Ububanzi buqinisekisa indawo eyaneleyo yokugcwala. Nje ukuba i-casting ifike kwinqanaba elilinganayo lokuqina kwe-graphitization yokwandiswa kunye nokucutheka, isinyithi esinyibilikisiweyo kwi-ingate siya kuyeka ukuhamba kwaye siya kuqina kwaye siyeke ngexesha ukuphucula izinga lokusetyenziswa kwe-graphitization self feeding, eli lisiphumo sokulungiswa okuguquguqukayo kwe-ingate emfutshane, encinci nebanzi (intamo ye-riser) ekutyeni. Kwezinye ii-castings ezinokuncipha okukhulu, i-riser ingamiselwa ukondla. I-riser ingcono kakhulu ekubekweni ekuqaleni kwe-sprue yangaphakathi, okanye i-riser ingamiselwa embindini ukuze yondle idiski kwelinye icala le-sprue yangaphakathi. Kwiindawo ezincinci ezixineneyo, amanyathelo okugonya wesibini anokusetyenziswa, oko kukuthi, i-injection inokongezwa kwiphakheji encinci ukuze igonyelwe ngoko nangoko ukuphucula isiphumo se-injection kunye nokukhuthaza i-nucleation kunye nokukhula kwe-graphite. Ingongezwa ezantsi kwephakheji kwaye ihlanjwe ibe yintsimbi enyibilikisiweyo.
