Ma lalo o ka mana o ke kumukūʻai o ka hao hao, ua piʻi aʻe ke kumu kūʻai o ke kila a ua hoʻomaka ke kumukūʻai o ka hao puaʻa. Hoʻopilikia pū kekahi i ka hopena o ka mālama ʻana i ke kaiapuni i ka pau ʻole o ka waihona carburizing kiʻekiʻe. A laila e piʻi aʻe ke kumukūʻai hao i ka mahina e hiki mai ana. Eia nā mea kikoʻī.
1 Ka hao puaʻa a me ka coke
Ma Shandong, Shanxi, Jiangsu, Hebei, Henan a me nā wahi ʻē aʻe ʻoiai he liʻiliʻi nā mea hao hao, akā liʻiliʻi nā mea hana i ka hana no laila ʻaʻole nui ka waihona. ʻO ka piʻi ʻana o ka mākeke kila, coke a me nā kumu kūʻai ʻai ka hopena i ka piʻi ʻana o ke kumukūʻai hao, i ka pule i hala ua piʻi ka hao puaʻa i 1% - 3%, piʻi ka coke 2% a ua hoʻemi ʻia nā waihona ʻelua. E hiki mai ana ke kiʻekiʻe o ke kauwela, e ulu mau ana ka makemake a me ke kumukūʻai o ka coke. Akā, ma muli o ke kiʻekiʻe o ka mahana a me ka wā e hiki mai ana, ʻaʻole ʻoi aku ka maikaʻi o ka koi ʻana o ke kila a me nā foundries no ka hao puaʻa, ua manaʻo ʻia ʻaʻole e piʻi nui ke kumukūʻai i ka wā pōkole.
2 ʻAi ʻōpala a me ka carburizing agent
Ua wehe ʻia ke kīʻaha o ka foundry ma muli o nā pilikia kaiapuni, ua hoʻomaka nā hui he nui e hoʻololi i ke kaʻina hoʻoheheʻe ʻana o ka umu uila, me ka hoʻohana ʻana i ke kumu kūʻai haʻahaʻa a me ke kila ʻōpala a me ka carburizing agent e hana i ka hao ductile a i ʻole ka hao hina. ʻO ka mea hana carburizing graphite maikaʻi ke kī, akā ʻo ka hapa mua o ka mālama ʻana i ke kaiapuni i alakaʻi ʻia i nā hale hana he nui i pani ʻia a pau ka ʻoihana carburizing. ʻO ka mea hou aʻe, ua piʻi aʻe ke kumukūʻai o ka ʻōpala no laila ua hoʻonui ʻia ke kumukūʻai o nā hale hana a piʻi pū ke kumukūʻai o ka hoʻolei ʻana i nā paipu hao.
Ka manawa hoʻouna: Mar-07-2017
