1. Ka wehewehe a me nā hiʻohiʻona o ke kila kila kila
ʻO ka pahu kila kila i kahi mea lōʻihi me ka ʻāpana keʻa poʻomanaʻo like ʻole, ma kahi o ʻehā mau mika ka lōʻihi, hiki ke hoʻokaʻawale ʻia i ka pā maʻemaʻe a me ka ʻeleʻele. He laumania ka ili poepoe pahee a ua hana ia e ka quasi-rolling; ʻeleʻele a ʻeleʻele ka ʻili o ka pā ʻeleʻele a ʻōwili wela pololei.
He nui nā waiwai maikaʻi loa. ʻO ka mea mua, ʻoi aku ka maikaʻi o kona pale ʻana i ka oxidation. No ka laʻana, 310S kuhiliʻole kila poepoe bar i oi aku ka maikai kolo ikaika ma muli o ka kiʻekiʻe pakeneka o chromium a me nickel, hiki ke hoʻomau i ka hana ma kiʻekiʻe wela, a he maikai kiʻekiʻe wela kū'ē. ʻO ka lua, loaʻa iā ia ka pale corrosion ikaika. No ka laʻana, 316L kuhiliʻole kila poepoe bar i maikaʻi corrosion kū'ē, o ka pitting kū'ē, ma muli o ka hoʻohuiʻia o Mo, a me ka helehelena o ke anu-owili huahana i maikai gloss; ma hope o ka hoʻohui ʻana iā Mo i ka 316 stainless steel round bar, ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion, ke kū ʻana o ka corrosion o ka lewa a me ka ikaika wela kiʻekiʻe, a hiki ke hoʻohana ʻia ma lalo o nā kūlana paʻakikī. Eia kekahi, ʻo ka pā kila kila kila maikaʻi nā waiwai mechanical, e like me ka 304 stainless steel round bar he maikaʻi ka corrosion resistance, ka wela wela, ka ikaika haʻahaʻa haʻahaʻa a me nā waiwai mechanical, a me ka corrosion-kū i ka lewa. I ka manawa like, loaʻa nā waiwai maʻemaʻe maikaʻi a hoʻohana nui ʻia i ka ʻoihana meaʻai a me nā mea ʻoki kino. Eia kekahi, ʻoluʻolu maikaʻi nā ʻāpana kila kila me ka maikaʻi o ka ʻili. Hiki iā lākou ke hana ʻia i loko o nā ʻoihana ʻenehana, nā ʻili i kāhili ʻia, nā ʻili kukui a hiki ke hoʻoliʻi hou ʻia e like me nā pono like ʻole.
2. Hoʻohana ʻia i ke kila kila kila
2.1 Ka laulā o nā kahua noi
Loa'a ka mana'o ho'ohana ākea a he kuleana ko'iko'i i nā kula he nui nā lā'au pō'ai. Ma ke kahua o ka hana moku, kona pale ʻana i ka corrosion a me ke kūpaʻa wela kiʻekiʻe e lilo ia i mea koho waiwai kūpono no ka hana ʻana i nā hale hull a me nā lako moku. I loko o ka ʻoihana petrochemical, hiki i nā ʻāpana kila kila ke kū i ka ʻino ʻana o nā kemika corrosive like ʻole a hoʻohana nui ʻia i ka hana ʻana i nā mea kemika a me nā pipeline. ma muli o ko lākou maʻemaʻe maikaʻi a me ka pale ʻana i ka corrosion. He kiʻekiʻe loa ko ke kahua lapaʻau no ka maʻemaʻe. ʻO nā mea hana ʻokiʻoki a me nā mea lapaʻau i hana ʻia me nā kaola poʻo kila kuhili ʻole e kūpono i nā kūlana maʻemaʻe koʻikoʻi.
Ma ke ʻano o ka hoʻonani hale, hiki ke hoʻohana ʻia nā kaola pōʻai kila kila e hana i ka iwi o nā hale, nā ʻāpana hoʻonaninani like ʻole, nā handrails, nā puka a me nā puka makani, a me nā mea ʻē aʻe. ka hale. Eia kekahi, ma ke kahua o nā lako kīhini lako, nā mea kīhini i hana ʻia me nā ʻāpana kila kila he lōʻihi a nani. Ma ke ʻano o nā lako hana, e like me nā lako hoʻohana wai kai, nā kemika, nā mea hoʻonaninani, ka hana pepa, ka waikawa oxalic, nā mea hoʻomomona a me nā mea hana ʻē aʻe, hoʻohana nui ʻia nā pahu kila kila. Hiki i kona pale ʻana i ka corrosion ke hōʻoia i ka hana lōʻihi a paʻa o nā mea hana ma nā wahi paʻakikī.
3. Ka hoʻokaʻawale ʻana o ke kila kila kila
3.1 Hoʻolauna i nā mea maʻamau
301 Ke kila kila poepoe pae: maikaʻi ductility, hoʻohana nui 'ia i hoʻokumu 'ia huahana. Hiki ke hoʻopaʻakikī ʻia e ka mīkini wikiwiki, maikaʻi ka weldability, a ʻoi aku ka maikaʻi o ke kūpaʻa a me ka ikaika luhi ma mua o 304 stainless steel.
304 kuhili 'ole ka poepoe bar: 'O ia ka mea i hoʻohana nui 'ia chromium-nickel kuhiliʻole kila me ka maikaʻi corrosion kū'ē, wela wela, haʻahaʻa wela ikaika a me ka mechanical waiwai. He pale ʻino i ka lewa. Inā he lewa ʻoihana a he wahi haumia nui paha, pono e hoʻomaʻemaʻe ʻia i ka manawa e pale ai i ka corrosion.
303 kuhili 'ole ka poepoe pae: 'Oi aku ka ma'alahi o ka 'oki 'ana ma mua o 304 ma ka ho'ohui 'ana i ka sulfur a me ka phosphorus, a ua like kona mau waiwai me 304.
ʻO 316 mau kila kila kila: Ma hope o 304, ʻo ia ka lua o ka ʻano kila i hoʻohana nui ʻia, i hoʻohana nui ʻia i ka ʻoihana meaʻai a me nā mea hana. Ma muli o ka hoʻohui ʻana o Mo, ʻoi aku ka maikaʻi o kona pale ʻana i ka corrosion, ke kū ʻana o ka corrosion atmospheric a me ka ikaika wela kiʻekiʻe, a hiki ke hoʻohana ʻia ma lalo o nā kūlana paʻakikī; ʻo ka paʻakikī hana maikaʻi (non-magnetic).
316L kuhiliʻole kila poepoe pae: ʻO ka huahana i ʻōwili ʻia i ke anuanu he hiʻohiʻona nani a nani hoʻi; ma muli o ka hoʻohui ʻana o Mo, loaʻa iā ia ke kūpaʻa corrosion maikaʻi loa, ʻoi aku ka pale ʻana i ka pitting; maikaʻi loa ka ikaika wela; ka paʻakikī o ka hana maikaʻi (nāwaliwali magnetism ma hope o ka hana ʻana); non-magnetic ma ke kūlana hoʻonā paʻa.
304L kuhili 'ole ka poepoe bar: He ʻano ʻano o 304 stainless steel me ka haʻahaʻa carbon content a hoʻohana ʻia i nā manawa e koi ʻia ai ka wili. ʻO ka haʻahaʻa carbon maʻiʻo e hōʻemi i ka ua o ka carbide i loko o ka wela wela ma kahi kokoke i ka weld, a ʻo ka ua o ka carbide hiki ke hoʻoneʻe intergranular (welding erosion) o ke kila kila ma kekahi mau kaiapuni.
321 kuhili 'ole ka poepoe bar: Hoʻohui ʻia ʻo Ti i 304 kila e pale ai i ka ʻinoʻino intergranular, a kūpono no ka hoʻohana ʻana i nā mahana o 430 ℃ - 900 ℃. Ma waho aʻe o ka hoʻemi ʻia ʻana o ka hopena o ka weld waiwai e ka hoʻohui ʻana o ka titanium, ua like nā waiwai ʻē aʻe me 304.
2520 kuhiliʻole kila poepoe bar: He maikai kiʻekiʻe wela kū'ē a me ka oxidation kū'ē, a hiki ke hana stable no ka manawa lōʻihi ma kiʻekiʻe wela kaiapuni.
201 kuhiliʻole kila poepoe pahu: He chromium-nickel-manganese austenitic kuhiliʻole kila me ka haʻahaʻa magnetism a me ka haʻahaʻa kumu kūʻai. Hoʻohana pinepine ʻia ia i nā kūlana ʻaʻole kiʻekiʻe loa ka pale ʻana i ka corrosion akā pono ka paʻakikī a me ka ikaika.
2202 kila kuhiliʻole pahu poepoe: He chromium-nickel-manganese austenitic kila kila me ka maikaʻi o ka hana ma mua o 201 kila kila.
3.2 Hoʻohana ʻokoʻa o nā mea like ʻole
I ka ʻoihana ʻaila, hoʻohana nui ʻia nā 316L a me 316 stainless steel round bar i ke kūkulu ʻana i nā lako petrochemical a me nā pipeline ma muli o ko lākou kūpaʻa maikaʻi ʻana a me ke kūpaʻa wela kiʻekiʻe. I ka ʻoihana uila, hoʻohana pinepine ʻia nā 304 a me 304L stainless steel round bar i loko o ka hale a me nā ʻāpana o loko o nā lako uila ma muli o kā lākou hana hoʻoponopono maikaʻi a me ke kū ʻana o ka corrosion. I loko o ka ʻoihana kemika, hoʻohana ʻia nā kaola poʻo kila kila o nā mea like ʻole, a koho ʻia ka mea kūpono e like me nā kemika like ʻole a me nā wahi hana. No ka laʻana, no nā kemika ʻino loa, ʻoi aku ka maikaʻi o 316L a me 316 mau pahu kila kila; ʻoiai no nā mea hana kemika maʻamau, hiki i ka 304 mau pahu kila kila ke hoʻokō i nā koi.
I ka ʻoihana lāʻau lapaʻau, kiʻekiʻe loa nā koi o ka maʻemaʻe. 316L a me 304L kuhiliʻole kila poepoe kaola, ua hoʻohana 'ia no ka hanaʻana i nā meaʻokiʻoki, lāʻau lapaʻau, etc. I ka ʻoihana meaʻai, ʻo 304 a me 316 mau mea hoʻohana maʻamau i hoʻohana ʻia i nā mea kila kila kila, hiki ke hoʻokō i nā koi o ka maʻemaʻe a me nā koi kūpaʻa corrosion i ke kaʻina hana meaʻai.
I ka ʻoihana mīkini, koho ʻia nā ʻāpana kila kila o nā mea like ʻole e like me nā koi kikoʻī o nā ʻāpana mechanical. No ka laʻana, no nā ʻāpana e koi ana i ka ikaika kiʻekiʻe a me ke kūpaʻa ʻana, hiki iā ʻoe ke koho i nā kaola 420 stainless steel puni; no nā ʻāpana e koi ana i ka hana hoʻoponopono maikaʻi, hiki iā ʻoe ke koho i ka 303 stainless steel pōʻai kaola.
I ka ʻoihana kūkulu, 304 a me 316 mau ʻāpana kila kila i hoʻohana pinepine ʻia no nā ʻāpana hoʻonaninani a me nā papa hana o nā hale. Hiki ke hoʻonui i ka waiwai o ko lākou pale ʻana i ka corrosion a me ka nani i ka hale. Ma kekahi mau kaiapuni hana kūikawā, e like me ka moana a i ʻole ka chlorine, ʻoi aku ka koʻikoʻi o ka pale ʻana o ka 316L stainless steel.
Ka manawa hoʻouna: ʻOkakopa-31-2024