Ke kila kalapona, ʻike ʻia hoʻi he kila kalapona, pili i ka hao a me nā ʻāpana kalapona i loaʻa ka liʻiliʻi ma mua o 2% carbon, ʻo ke kila kalapona i hoʻohui ʻia i ke kalapona ma ke ʻano maʻamau he liʻiliʻi liʻiliʻi o ke silika, manganese, sulfur a me ka phosphorus.
Kila kohu ʻole, i ʻike ʻia ʻo ke kila ʻakika kūpaʻa ʻole, e pili ana i ke kūʻē ʻana o ka ea, ka mahu, ka wai a me nā mea ʻeleʻele corrosive nāwaliwali a me nā waikawa, nā alkalis, nā paʻakai a me nā mea ʻē aʻe impregnating media corrosion steel. I ka hoʻomaʻamaʻa ʻana, ʻo ke kila kūʻē i ka media corrosive nāwaliwali ke kapa ʻia he kila kila, a ʻo ke kila kūʻē i ka media kemika i kapa ʻia ʻo ka acid-resistant steel.
(1) ʻO ke kūpaʻa ʻana a me ka abrasion
ʻO ke kila kila he mea hoʻoheheʻe ʻia i kū i ka ʻinoʻino e nā media corrosive nāwaliwali e like me ka ea, ka mahu, ka wai a me nā mea hoʻoweliweli kemika e like me nā waikawa, nā alkalis a me nā paʻakai. A ʻo kēia hana ka mea nui i ka hoʻohui ʻana o ka mea stainless - chromium. Ke ʻoi aku ka nui o ka chromium ma mua o 12%, e hoʻoheheʻe ʻia ka ʻili o ke kila kila i kahi papa o ka kiʻiʻoniʻoni oxidized, i kapa ʻia ʻo passivation film, me kēia papa o ka oxidized film ʻaʻole maʻalahi e hoʻoheheʻe i kekahi mau media, hoʻokani maikaʻi i kahi kūlana kaʻawale, loaʻa ka ikaika corrosion.
ʻO ka hao kalapona e pili ana i ka hao-carbon alloy i loaʻa ka liʻiliʻi ma mua o 2.11% carbon, i ʻike ʻia ʻo carbon steel, ʻoi aku ka ʻoi aku o kona paʻakikī ma mua o ke kila kila, akā ʻoi aku ka nui o ke kaumaha, ʻoi aku ka haʻahaʻa o ka plasticity, maʻalahi i ka pala.
(2) haku mele like ʻole
He pōkole ke kila kila no ke kila ʻakika kūpaʻa, kū i ka ea, ka mahu, ka wai a me nā mea hoʻoheheʻe nāwaliwali ʻē aʻe a i ʻole me ke kila kila i kapa ʻia he kila kila; a e kū'ē i nā mea hoʻoheheʻe kino (acid, alkalis, salts and other chemical impregnation) ʻo ka corrosion o ke kila ua kapa ʻia ʻo ka acid-resistant steel.
ʻO ke kila kalapona he mea hao-kāpona hao me kahi kalapona maʻiʻo o 0.0218% a 2.11%. Kāhea ʻia ke kila kalapona. Loaʻa pū kekahi i nā mea liʻiliʻi o ke silika, manganese, sulfur, a me ka phosphorus.
(3) Kumukuai
ʻO kekahi mea nui e noʻonoʻo ai ka ʻokoʻa o ke kumukūʻai ma waena o ke kila kalapona a me ke kila kila. ʻOiai he ʻokoʻa nā kumukūʻai o nā kila ʻokoʻa, ʻoi aku ka nui o ke kumukūʻai ma mua o ke kila kalapona, ma muli o ka hoʻohui ʻana o nā mea hoʻohui like ʻole, e like me ka chromium, nickel, a me ka manganese, i ke kila kila.
Ke hoʻohālikelike ʻia me ke kila kalapona, ʻoi aku ka nui o ke kila kila i hui pū ʻia a ʻoi aku ke kumukūʻai i hoʻohālikelike ʻia me ke kila kalapona. Ma ka ʻaoʻao ʻē aʻe, ʻo ke kila kalapona ka nui o nā mea maʻalahi o ka hao a me ke kalapona. Inā ʻoe ma kahi kālā paʻa no kāu papahana, a laila ʻo ke kila kalapona paha ke koho maikaʻi loa.
ʻO wai ka mea paʻakikī, ke kila a i ʻole ke kila kalapona?
ʻOi aku ka paʻakikī o ke kila kalapona no ka mea ʻoi aku ka nui o ke kalapona, ʻoiai ʻo ka ʻaoʻao i lalo ʻo ia ka mea e pala.
ʻOiaʻiʻo, e hilinaʻi ka paʻakikī pololei ma ka papa, a pono ʻoe e hoʻomaopopo ʻaʻole ʻoi aku ka maikaʻi o ka paʻakikī, ʻoiai ʻo ka mea paʻakikī ʻoi aku ka maʻalahi o ka haki ʻana, akā ʻo ka paʻakikī haʻahaʻa ʻoi aku ka paʻakikī a emi ʻole ka haki.
Ka manawa hoʻouna: Iulai-22-2025
