12L14 ʻOki ʻoki kūʻokoʻa i ka hao hao

A ke kila me ka mea kiʻekiʻe ma mua o ka mea maʻamau o ka sulfur a me ka phosphorus i manaʻo ʻia no ka hana ʻana i nā ʻāpana no nā mea mīkini mīkini kiʻekiʻe a me semiautomatic. Hana ʻia ke kila ʻoki manuahi ma ke ʻano o nā koʻokoʻo, a loaʻa iā 0.08–0.45 pakeneka kalapona, 0.15–0.35 pakeneka silika, 0.6–1.55 pakeneka manganese, 0.08–0.30 pakeneka sulfur, a me 0.05–0.16 pakeneka o ka phosphorus. ʻO ke kiʻekiʻe o ka sulfur maʻi e alakaʻi i ka hoʻokumu ʻana i nā inclusions (e like me ka manganese sulfide) i hoʻolei ʻia ma ka palaoa. Hoʻomaʻamaʻa kēia mau mea hoʻohui i ka ʻāhi a hoʻoikaika i ka wili a me ka hana maʻalahi. No kēia mau kumu, hoʻohui ʻia ke kila ʻoki manuahi i kekahi manawa me ke kēpau a me ka tellurium.

ʻO 12L14 kahi ʻano o ke kila kalapona resulfurized a rephosphorized no ka ʻoki manuahi a me nā noi mīkini. ʻO ke kila structural (akomi Steel) he machinability maikaʻi loa a me ka ikaika haʻahaʻa ma muli o nā mea alloying e like me Sulfur a me Lead, hiki ke hōʻemi i ka ʻoki ʻana a hoʻomaikaʻi i ka hoʻopau a me ka pololei o nā ʻāpana mīkini. Ua hoʻohana nui ʻia ke kila 12L14 i ka hana ʻana i nā ʻāpana mea kani pololei, nā ʻāpana kaʻa a me nā ʻāpana koʻikoʻi o nā ʻano mīkini like ʻole, nā noi maʻamau me nā bushings, shafts, inserts, couplings, fittings a me nā mea ʻē aʻe.