Kila kohu ʻoleHe ʻano kila, ʻo ke kila e pili ana i ka nui o ke kalapona (C) i kēia 2% i kapa ʻia he kila, ʻoi aku ma mua o 2% ka hao. ʻO ke kila i loko o ke kaʻina hoʻoheheʻe e hoʻohui i ka chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) a me nā mea hoʻohui ʻē aʻe e hoʻomaikaʻi i ka hana o ke kila i loaʻa ke kila. ʻO ke kūpaʻa corrosion (ʻo ia hoʻi, ʻaʻole i ka ʻōpala) ʻōlelo pinepine mākou he kila kila.
ʻO ke kila kila ma ke kaʻina hana hoʻoheheʻe, ma muli o ka hoʻohuiʻana i nā mea hoʻohui o nāʻano likeʻole, nāʻano likeʻole o ka nui o nā mea likeʻole. Heʻokoʻa hoʻi kona mau hiʻohiʻona, i mea eʻike ai i ka lei aliʻi ma nā helu kila likeʻole.
Hoʻokaʻawale maʻamau o ke kila kila
1. 304 kila kila
ʻO 304 ke kila kila ka mea maʻamau o ke kila, e like me ke kila hoʻohana nui ʻia, maikaʻi ke kūpaʻa corrosion, ka wela wela, ka ikaika haʻahaʻa haʻahaʻa a me nā waiwai mechanical; He maikaʻi ka hoʻopaʻa ʻana, ke kuʻi ʻana a me nā kaʻina hana wela ʻē aʻe, ʻaʻohe mea paʻakikī mālama wela (ʻaʻohe magnetic, a laila hoʻohana i ka mahana -196 ℃ ~ 800 ℃).
Ka nui o ka noi: nā ʻatikala hale (1, 2 papa ʻaina, nā keʻena, nā paipu i loko, nā mea hoʻomehana wai, nā paila, nā ʻauʻau ʻauʻau); Nā ʻāpana kaʻa (wiper windshield, muffler, nā huahana mold); Na Lapaau Lapaau, Na Lako Hale, Kemika, Mea Ai, Mahiai, Moku
2. 304L kila kuhiliʻole (L he haʻahaʻa kalapona)
E like me ka haʻahaʻa kalapona 304 kila, ma ka laulā moku'āina, kona corrosion kū'ē a me 304 like wale, akā, ma hope o kuʻihao a stress elimination, kona kū'ē i ka palaoa palena corrosion hiki maikai; Inā ʻaʻohe wela wela, hiki ke mālama i ke kūpaʻa corrosion maikaʻi, ka hoʻohana ʻana i ka mahana -196 ℃ ~ 800 ℃.
Ka palena o ka noi: hoʻohana ʻia i nā ʻoihana kemika, lanahu a me ka ʻaila me nā koi kiʻekiʻe o ke kūʻē ʻana i ka corrosion palena o nā mīkini waho, nā mea kūkulu hale i nā ʻāpana wela a me nā ʻāpana me nā pilikia i ka mālama wela.
3. 316 kila kila
316 kila kila ma muli o ka hoʻohui ʻana o ka molybdenum, no laila ʻoi aku ka maikaʻi o kona kūpaʻa ʻana i ka corrosion, ke kū ʻana o ka corrosion o ka lewa a me ka ikaika wela kiʻekiʻe, hiki ke hoʻohana ʻia ma lalo o nā kūlana paʻakikī; ʻO ka paʻakikī hana maikaʻi (non magnetic).
Ka palena o ka noi: nā mea hana wai kai, kemika, ka wai, ka hana pepa, ka waikawa oxalic, ka mea hoʻomomona a me nā mea hana ʻē aʻe; Nā kiʻi kiʻi, ʻoihana meaʻai, nā wahi kai, nā kaula, nā koʻokoʻo CD, nā bolts, nā nati.
4. 316L kuhiliʻole (L he kalapona haʻahaʻa)
E like me ke kalapona haʻahaʻa haʻahaʻa o 316 kila, me nā ʻano like me 316 kila, ʻoi aku ka maikaʻi o kona kūʻē ʻana i ka corrosion palena ʻai.
Ka laulā o ka noi: nā koi kūikawā e pale aku i nā huahana corrosion palena o ka palaoa.
Hoʻohālikelike Hana
1. Hoʻohui kemika
ʻO nā kila kila 316 a me 316L he molybdenum i loaʻa nā kila kila. ʻOi aku ka kiʻekiʻe o ka molybdenum o 316L stainless steel ma mua o ka 316 stainless steel. Ma muli o ka molybdenum i ke kila, ʻoi aku ka maikaʻi o ka hana holoʻokoʻa o ke kila ma mua o 310 a me 304 stainless steels. Ma lalo o ke kūlana wela kiʻekiʻe, i ka wā e emi ai ka nui o ka sulfuric acid ma mua o 15% a ʻoi aku ma mua o 85%, 316 mau mea kila kila he nui nā hoʻohana. Loaʻa iā 316 ke kila kila maikaʻi a me ka chloride erosion waiwai, no laila hoʻohana mau ʻia i nā kaiapuni moana. ʻO 316L kila kila ka nui o ka maʻiʻo kalapona he 0.03. He kūpono no nā noi kahi hiki ʻole ke hoʻopili ʻia ma hope o ka weld a ma kahi e koi ʻia ai ke kūpaʻa corrosion kiʻekiʻe.
2. Cokūʻē rrosion
ʻOi aku ka maikaʻi o ka pale ʻana o ka 316 stainless steel ma mua o ka 304 stainless steel. Loaʻa iā ia ka pale corrosion maikaʻi i ke kaʻina hana o ka pulp a me ka pepa. A ʻo 316 ke kila kuhili ʻole ke kūpaʻa ʻana i ke kai a me ka hoʻoneʻe ʻana i ka lewa ʻenehana. Ma ka laulā, 304 stainless steel a me 316 kuhiliʻole kila i ke kū'ē i kemika corrosion waiwai o ka liʻiliʻi oʻokoʻa, akā, i loko o kekahi mau media kūikawā.
Ua hoʻokumu mua ʻia ʻo 304 stainless steel, i maʻalahi i ka Pitting Corrosion i kekahi mau hihia. ʻO ka hoʻohui ʻana i ka 2-3% molybdenum i hōʻemi i kēia ʻike, ka hopena i ka 316. Eia kekahi, hiki i kēia mau molybdenum hou ke hoʻemi i ka ʻinoʻino o kekahi mau ʻakika organik wela.
Ua aneane lilo ʻo 316 stainless steel i mea maʻamau i ka ʻoihana meaʻai a me nā mea inu. Ma muli o ka hemahema o ka honua holoʻokoʻa o ka molybdenum a me ke kiʻekiʻe o ka nickel content ma 316 stainless steel, 316 stainless steel ʻoi aku ke kumukūʻai ma mua o 304 stainless steel.
ʻO ka pitting corrosion kahi mea maʻamau i hoʻokumu ʻia e ka corrosion i waiho ʻia ma ka ʻili o ke kila kila, no ka nele o ka oxygen a ʻaʻole hiki ke hana i kahi papa pale o ka chromium oxide. ʻOi aku ka nui ma nā valve liʻiliʻi, liʻiliʻi ka manawa o ka waiho ʻana ma ka diski, no laila he kakaikahi ka lua.
I loko o nā ʻano ʻano wai like ʻole (wai distilled, wai inu, wai kahawai, wai paila, wai kai, a me nā mea ʻē aʻe), 304 stainless steel a me 316 stainless steel corrosion kūpaʻa ʻaneʻane like, ke ʻole ka ʻike o ka chloride ion i loko o ke kikowaena. kiʻekiʻe loa, i kēia manawa ʻoi aku ka kūpono o 316 stainless steel. I ka hapanui o nā hihia, ʻaʻole ʻokoʻa loa ka pale ʻana o ka corrosion o 304 stainless steel a me 316 stainless steel, akā i kekahi mau hihia he ʻokoʻa loa ia, pono e nānā ʻia i kēlā me kēia hihia.
3. Kūleʻa wela
Loaʻa i ka 316 stainless steel ka pale oxidation maikaʻi i ka hoʻohana ʻole ʻana ma lalo o 1600 degere a me ka hoʻohana mau ʻana ma lalo o 1700 degere. Ma ka laulā o 800-1575 degere, ʻoi aku ka maikaʻi ʻaʻole e hoʻomau i ka hopena o ka 316 stainless steel, akā i ka pae wela o ka hoʻohana mau ʻana o 316 stainless steel, ʻoi aku ka maikaʻi o ke kila kila. ʻOi aku ka maikaʻi o ke kūʻē ʻana o 316L stainless steel i ka ua carbide ma mua o 316 stainless steel, hiki ke hoʻohana ʻia i ka pae wela o luna.
4. Hana wela
Hana ʻia ka Annealing ma ke ʻano wela o 1850 a 2050 degere, a ma hope o ka hoʻopili wikiwiki ʻana a laila hoʻomaha wikiwiki. ʻAʻole hiki ke hoʻomehana ʻia ke kila kila 316 a paʻakikī.
5. Ka wiliwili
316 kuhiliʻole kila i maikai weld hiki. Hiki ke hoʻohana ʻia nā ʻano hana wili maʻamau a pau no ka wili. E like me ke kumu o ka wiliwili, hiki ke hoʻohana ʻia ka 316CB, 316L a i ʻole 309CB stainless steel packing rod a i ʻole electrode no ka wili. No ka loaʻa ʻana o ke kūpaʻa corrosion maikaʻi loa, pono e hoʻopili ʻia ka ʻāpana welding o 316 stainless steel ma hope o ke kuʻi ʻana. ʻAʻole koi ʻia ka hoʻopili ʻana ma hope o ka weld inā hoʻohana ʻia ke kila kila 316L.
Hikelokpaipu kuhiliʻole kilahoʻohana i ka mea 316L. Hoʻohana maʻamau nā mea hoʻopili ʻē aʻe a me nā kiwi 316.
Ka manawa hoʻouna: Feb-23-2022