Kina OEM maʻamau ductile hao nalowale waxnā huahana hoʻolei kālāme ka CNC machining, ka mālama wela a me nā lawelawe lapaʻau ʻili.
Hoʻolei maʻamau e ka hoʻolei kālā, hoʻolei ʻōmaʻomaʻo a mehoʻoheheʻe ʻia ʻana o ka pūpū, Hāʻawi nā mea hao ductile i ka maʻalahi o ka hoʻolālā ʻana a me ka hoʻemi ʻana i nā kumukūʻai hana kūʻē i nā hana welded a me nā forgings. He nui nā hiʻohiʻona o ka hoʻoheheʻe ʻia ʻana o ka hao, akā naʻe, ʻaʻole i nā manawa a pau ke kumu kūʻai maikaʻi loa i nā ʻāpana ferrous ʻē aʻe. Hoʻohui ʻia, hoʻohana nui ʻia nā hao ductile i nā ʻoihana hana he nui, me ka mahiʻai, automotive, hydaulics, kaʻaahi kaʻaahi, nā kaʻa kalepa a me nā ʻoihana aerospace.
Hoʻohana nui ʻia ka hao hoʻoheheʻe, ka mea nui me ka hao hina hina a me ka hao ductile (nodular) no ka hoʻolei ʻana ma o nā kaʻina hana o ka hoʻolei ʻana i ke one, ka hoʻoheheʻe ʻia ʻana o ka pūpū, ka hoʻolei ʻana i ke one i uhi ʻia a i ʻole ka hoʻolei ʻana i ka huʻa. Eia naʻe, no kekahi kūlana kūikawā, kakaʻina hoʻoheheʻe wax investmenthoʻohana ʻia ma muli o ko lākou ʻili maikaʻi a ʻoi aku ka pololei. Ma RMC, loaʻa iā mākou ka hiki ke hoʻolei i ka hao hina a me ka ductile me ka pololei o ka nalo ʻana o ka hoʻokele wax me ka hoʻohana ʻana i ka silica sol a me ke aniani wai no ke kūkulu ʻana i ka pūpū. ʻO nā hao hao he mau ferrous alloys i loaʻa nā mea kalapona i ʻoi aku ma mua o 2%. ʻOiai hiki ke loaʻa ka pākēneka kalapona i ka hao hao ma waena o 2 a 6.67, ʻo ka palena kūpono ma waena o 2 a me 4%. He mea nui kēia ma muli o kā lākou mau hiʻohiʻona maikaʻi loa. ʻO nā hao hina hina a me nā hao ductile (i kapa ʻia ʻo nodular cast iron a i ʻole spheroidal graphite iron).
Ke loaʻa ka graphite ma ke ʻano he liʻiliʻi, poepoe, a puʻunaue maikaʻi ʻia, liʻiliʻi kona hopena nāwaliwali a ʻoi aku ka nui o ka ductility o ia mau hao. Kapa ʻia kēia ʻano hao hao he ductile a iron nodular a i ʻole graphite spheroidal a i ʻole hao SG wale nō. Hiki ke loaʻa kēia ʻano graphite ma ka hoʻohui ʻana i ka magnesium elemental a i ʻole cerium a i ʻole ka hui pū ʻana o nā mea ʻelua i ka hao hoʻoheheʻe ʻia. Hoʻohui ʻia ka Magnesium i ka nui o 0.07 a 0. 10% i ukali ʻia e ka hoʻohui ʻana o ka ferro-silicon e hoʻoikaika i ka graphitization. I ka wā paʻa, kōkua ka magnesium i ka hāʻawi ʻana i ka graphite ma ka metala.
ʻOi aku ka maikaʻi o ka ikaika-a-kaumaha lākiō, ʻoi aku ka maikaʻi o ka mīkini a me ka waiwai o ka hopena kiʻekiʻe. Eia kekahi, hana ʻia nā ʻāpana hao ductile e ke kaʻina hoʻolei kahi e hiki ai ke hoʻokō ʻoi aku ka maikaʻi o ke ʻano o ka ʻāpana i hoʻohālikelike ʻia me ka hāʻule forging. No laila, ʻoi aku ka nui o nā ʻāpana e like me ka crank shafts a me nā lāʻau hoʻohui i hana maʻamau ʻia e ka drop forging e hoʻololi hou ʻia ana e nā hoʻolei hao ductile.
