Mekhoa e fapaneng ea ho lahla e 'nile ea ntlafatsoa ha nako e ntse e ea ke baqapi le bafuputsi, e' ngoe le e 'ngoe e na le litšobotsi tsa eona le tšebeliso ea eona.litšepe tsa tšepeho fihlela litlhoko tse khethehileng tsa boenjiniere le litšebeletso. Ka kakaretso, ho latela hore na hlobo e ka sebelisoa hape kapa che, mekhoa ea ho lahla e ka aroloa ka Expendable Mold Casting, Permanent Mold Casting le Composite Mold Casting. Theko e ka sebelisoang ea hlobo e ka boela ea aroloaho lahla lehlabathe, ho lahla hlobo ea khetla,ho kenya cheletele ho lahleheloa ke foam ho lahlela, ha hlobo e sa feleng e koahela haholo-holo matla a khoheli a shoang, khatello e tlaase ea ho lahla le khatello e phahameng ea lefu la ho lahla.
1. Expendable Mold Casting
Mefuta e ka sebelisoang hangata e entsoe ka lehlabathe, samente, lirafshoa le lisebelisoa tse tšoanang. Ka kakaretso e kopantsoe le li-binders tse fapaneng, kapa li-bonding agents. Mofuta o tloaelehileng oa lehlabathe o na le 90% ea lehlabathe, 7% ea letsopa, le 3% ea metsi. Lisebelisoa tsena li refractory (ho mamella mocheso o phahameng oa tšepe e qhibilihisitsoeng). Ka mor'a hore "casting" e tiee, hlobo e ka sebelisoang lits'ebetsong tsena e robeha ho tlosa lisebelisoa tsa ho qetela tsa tšepe.
2. Ho Rala hlobo e sa Feleng
Mefuta e sa feleng e entsoe haholo ka litšepe tse bolokang matla a mocheso o phahameng. Li sebelisoa khafetsa. E entsoe e le hore li-castings tsa tšepe li ka tlosoa habonolo 'me hlobo e ka sebelisoa hape. The sa feleng hlobo casting sebelisa molemo mocheso conductor ho feta atoloswa nonmetallic hlobo; kahoo, solidifying casting e tlas'a tekanyo e phahameng ea ho pholile, e amang microstructure le boholo ba lijo-thollo.
3. Composite Mold Casting
Mefuta e entsoeng ka motsoako e entsoe ka lisebelisoa tse peli kapa ho feta tse fapaneng (tse kang lehlabathe, graphite le tšepe) li kopanya melemo ea thepa ka 'ngoe. Mefuta e kopantsoeng e na le karolo e sa feleng le e theko e tlaase 'me e sebelisoa mekhoeng e fapaneng ea ho lahla ho ntlafatsa matla a hlobo, ho laola maemo a ho pholisa, le ho ntlafatsa moruo ka kakaretso oa mokhoa oa ho lahlela.
Nako ea poso: Feb-18-2021