ʻO ka hui kemika o ka hao ductile ka nui o nā mea maʻamau ʻelima o carbon, silicon, manganese, sulfur a me phosphorus. No kekahi mau castings me nā koi kūikawā e pili ana i ka hoʻonohonoho a me ka hana, ua hoʻokomo pū ʻia kahi liʻiliʻi o nā mea hoʻohui. ʻAʻole like me ka hao hina hina maʻamau, pono e loaʻa i ka hao ductile ka nui o nā mea spheroidal koena i mea e hōʻoia ai i ka graphite spheroidization. Hana mākou i kahi ākea ohoolei ana no na kaa kalaka Iapana a me Europa, e like mepūnāwai bracket, pūnāwai kaula,pine puna a me ka pūnāwai kumu.
1, Carbon a me carbon equivalent koho kumukānāwai: carbon ka mea kumu o ka ductile hao, kiʻekiʻe kalapona kōkua graphitization. Eia naʻe, ʻo ke kiʻekiʻe o ke kalapona ka mea e lana ai ka graphite. No laila, ʻo ka palena kiʻekiʻe o ka like kalapona i loko o ka hao ductile ma muli o ke kumu o ka lana ʻole graphite.
2, ʻO ke kumumanaʻo koho Silicon: ʻO Silicon kahi mea graphitizing ikaika. I ka hao ductile, ʻaʻole hiki i ka silikoni ke hoʻohaʻahaʻa i ke ʻano o ka waha keʻokeʻo a hoʻonui i ka nui o ka ferrite, akā loaʻa nō hoʻi ke kuleana o ka hoʻomaʻemaʻe ʻana i nā puʻupuʻu eutectic a me ka hoʻomaikaʻi ʻana i ka pōʻai o nā spheres graphite.
3, Manganese koho kumu: E like me ka sulfur maʻiʻo i loko o ka ductile hao ua loa haʻahaʻa, aole pono nui loa manganese e neutralize sulfur, ka hana o ka manganese i ductile hao mea nui i ka hoonui i ka paʻa o ka pearlite.
4, Nā loina koho Phosphorus: ʻO ka phosphorus kahi mea ʻino, haʻahaʻa loa ka solubility i ka hao. Ma ka laulā, ʻoi aku ka haʻahaʻa o ka phosphorus i ka hao ductile, ʻoi aku ka maikaʻi.
5, ʻO ke kumu koho Sulfur: ʻO ka Sulfur he mea anti-spherical, he pilina ikaika ia me ka magnesium, ka honua ʻokoʻa a me nā mea spheroidal ʻē aʻe, ʻo ka hele ʻana o ka sulfur e hoʻopau i ka nui o nā mea spheroidal i ka ferrofluid, ka hoʻokumu ʻana o ka magnesium a me ka laha. honua sulfides, hoʻoulu i ka pala, porosity a me nā hemahema ʻē aʻe.
6, Spheroidal element koho loina: ma ka manaʻo o ka hōʻoia ʻana i ka spheroidal kūpono, ʻo ke koena o ka magnesium a me ka honua laha ʻole e like me ka haʻahaʻa. He kiʻekiʻe loa nā koena o ka magnesium a me ka honua, e hoʻonui i ka manaʻo o ka waha keʻokeʻo o ka wai hao, a e hoʻopilikia i nā ʻano mechanical o nā castings ma muli o ko lākou hoʻokaʻawale ʻana i nā palena o ka palaoa.
Ka manawa hoʻouna: Jul-04-2023
