304 kila kila kila: 0Cr18Ni9 (0Cr19Ni9) 06Cr19Ni9 S30408
Huina kemika: C: ≤0.08, Si: ≤1.0 Mn: ≤2.0, Cr: 18.0～20.0, Ni: 8.0～10.5, S: ≤0.03, P: ≤0.035 N≤0.1.
ʻOi aku ka 304L i ka corrosion a ʻo 304L ka liʻiliʻi o ke kalapona.
Hoʻohana nui ʻia ʻo 304, me ke kūpaʻa corrosion maikaʻi, ka pale wela, ka ikaika haʻahaʻa haʻahaʻa a me nā waiwai mechanical; ʻO ka hana wela maikaʻi e like me ke kuʻi ʻana a me ke kulou ʻana, ʻaʻohe mea hoʻopaʻapaʻa mālama wela (non-magnetic, wela lawelawe -196°C~800°C).
ʻO 304L he kūʻē maikaʻi loa i ka corrosion palena o ka palaoa ma hope o ke kuʻi ʻana a i ʻole ka hoʻoluhi pilikia; hiki iā ia ke mālama i ke kūpaʻa corrosion maikaʻi me ka ʻole o ka mālama ʻana i ka wela, a ʻo ka mahana lawelawe ʻo -196 ° C-800 ° C.

kūlana kumu:

Wahi a ke ʻano hana hana, hiki ke hoʻokaʻawale ʻia i ʻelua ʻano: ʻo ka ʻōwili wela a me ka ʻōwili anu, a hiki ke hoʻokaʻawale ʻia i 5 mau ʻano e like me ke ʻano o nā ʻano kila: austenitic type, austenite-ferritic type, ferritic type, martensitic type, and precipitation hardening type. Pono ia e hiki ke pale aku i ka corrosion o nā ʻakika like ʻole e like me ka oxalic acid, sulfuric acid-ferric sulfate, nitric acid, nitric acid-hydrofluoric acid, sulfuric acid-copper sulfate, phosphoric acid, formic acid, acetic acid, etc. nā lako papaʻaina, nā kaʻa, nā ʻāpana like ʻole o nā mea hana hale.
ʻO ka pā kila kila he ʻili maʻemaʻe, ka plasticity kiʻekiʻe, ka paʻakikī a me ka ikaika mechanical, a kūpaʻa i ka corrosion e nā waikawa, nā kinoea alkaline, nā hopena a me nā media ʻē aʻe. He kila kila ʻaʻole maʻalahi i ka ʻōpala, akā ʻaʻole ia he ʻeleʻele loa.
E like me ke ʻano o ka hana ʻana, hiki ke hoʻokaʻawale ʻia i ʻelua ʻano: ka ʻōwili wela a me ka ʻōwili anu, me ka pā anu anuanu me ka mānoanoa o 0.02-4 mm a me ka pā waena a me ka mānoanoa me ka mānoanoa o 4.5-100 mm.
I mea e hōʻoia ai i ka hoʻokō ʻana o nā mea hana mechanical e like me ka hoʻoulu ʻana i ka ikaika, ka ikaika tensile, ka elongation a me ka paʻakikī o nā ʻano ʻāpana kila kila e hoʻokō i nā koi, pono nā papa kila e hoʻomaʻamaʻa wela e like me ka annealing, ka hoʻoponopono ʻana, a me ka mālama ʻana i ka wā kahiko ma mua o ka lawe ʻana. 05.10 88.57.29.38 hōʻailona kūikawā
ʻO ke kūpaʻa o ka corrosion o ke kila kila e hilinaʻi nui ʻia i kāna ʻano huila (chromium, nickel, titanium, silicon, aluminika, a me nā mea ʻē aʻe) a me ka hale o loko, a ʻo ka hana nui ʻo chromium. Loaʻa i ka Chromium ke kūpaʻa kemika kiʻekiʻe a hiki ke hana i kahi kiʻiʻoniʻoni passivation ma ka ʻili kila e hoʻokaʻawale i ka metala mai ka honua o waho, e pale i ka pā kila mai ka oxidation, a hoʻonui i ke kūpaʻa corrosion o ka pā kila. Ma hope o ka luku ʻia ʻana o ka kiʻiʻoniʻoni passivation, e emi ana ke kūpaʻa corrosion.

ʻO ke ʻano maʻamau ʻāina:

Ka ikaika uʻi (Mpa) 520
Ka ikaika hua (Mpa) 205-210
Elongation (%) 40%
Oolea HB187 HRB90 HV200
ʻO 7.93 g/cm3 ka mānoanoa o 304 kila kila. Hoʻohana maʻamau ʻo Austenitic stainless steel i kēia waiwai. 304 chromium maʻiʻo (%) 17.00-19.00, nickel maʻiʻo (%) 8.00-10.00, 304 mea like me koʻu ʻāina 0Cr19Ni9 (0Cr18Ni9) kila kila.
ʻO 304 ke kila kila he mea kila kila nui loa, a ʻoi aku ka ikaika o kāna hana anti-rust ma mua o nā mea 200 series stainless steel. ʻOi aku ka maikaʻi o ka pale wela kiʻekiʻe.
ʻO 304 kila kila maikaʻi loa ke kūʻē ʻana i ka corrosion kuhiliʻole a ʻoi aku ka maikaʻi o ke kūʻē ʻana i ka corrosion intergranular.
No ka oxidizing acids, ua hoʻopau ʻia i nā hoʻokolohua ʻo 304 stainless steel he ikaika ka corrosion resistance i loko o ka waikawa nitric ma lalo o ka mahana paila me ka manaʻo o ≤65%. Loaʻa iā ia ke kūpaʻa corrosion maikaʻi i nā hoʻonā alkaline a me ka hapa nui o nā mea ʻona a me nā waikona inorganic.

ʻano maʻamau:

ʻO 304 ka pā kila kila he ili nani a me nā mea hiki ke hoʻohana
ʻOi aku ka maikaʻi o ka corrosion, ʻoi aku ka maikaʻi o ka corrosion ma mua o ke kila maʻamau
ʻO ka ikaika kiʻekiʻe, no laila ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka pā lahilahi
Kū'ē i ka wela wela a me ka ikaika kiʻekiʻe, no laila kū'ē i ke ahi
ʻO ka hana wela maʻamau, ʻo ia hoʻi, ka hana plastik maʻalahi
Maʻalahi a maʻalahi ka mālama ʻana no ka mea ʻaʻohe pono o ka mālama ʻana
maʻemaʻe, hoʻopau kiʻekiʻe
Hana maikaʻi wiliwili

Hana kiʻi
1, ʻO ka wili maloʻo i pulumi ʻia
ʻO nā mea maʻamau ma ka mākeke he uea lōʻihi a me ka uea pōkole. Ma hope o ka hana ʻana i kēlā ʻano, hōʻike ka 304 stainless steel plate i kahi hopena hoʻonaninani maikaʻi, hiki ke hoʻokō i nā koi o nā mea hoʻonaninani maʻamau. Ma ka ʻōlelo maʻamau, hiki i ka 304 series stainless steel ke hana i kahi hopena maikaʻi ma hope o hoʻokahi ʻōpala. Ma muli o ke kumukūʻai haʻahaʻa, ka hana maʻalahi, ke kumukūʻai haʻahaʻa haʻahaʻa a me ka hoʻohana ākea o kēia ʻano mea hana, ua lilo ia i mea pono no nā kikowaena hana. No laila, ʻo ka hapa nui o nā kikowaena mīkini hiki ke hāʻawi i nā papa hau lōʻihi a me nā uea pōkole, ʻo ia ka 304 mau mea kila ma mua o 80%.
2, kiʻi wili ʻaila
Hōʻike ka 304 ʻohana stainless steel i kahi hopena hoʻonaninani maikaʻi loa ma hope o ka wili ʻana i ka ʻaila, a hoʻohana nui ʻia i nā panela hoʻonaninani e like me nā elevators a me nā mea hana hale. Hiki ke loaʻa nā hopena maikaʻi ma hope o hoʻokahi kaʻa hau hau. Aia kekahi mau kikowaena hana ma ka mākeke e hiki ke hāʻawi i ka hau aila no ke kila kuhili ʻole wela, a ua like kona hopena me ka wili aila ʻaila anu. Hiki ke hoʻokaʻawale ʻia ke kaha kiʻi ʻaila i loko o ka filament lōʻihi a me ka filament pōkole. Hoʻohana maʻamau ka filament no ka hoʻonani ʻeleʻele, a ʻelua ʻano ʻano ʻano no nā mea pono hale liʻiliʻi a me nā mea kīhini.
ʻOkoʻa mai ka 316
ʻO nā mea kila kila ʻelua i hoʻohana pinepine ʻia 304 a me 316 (a i ʻole e pili ana i ka German/European standard 1.4308, 1.4408), ʻo ka ʻokoʻa nui ma waena o 316 a me 304 ʻo ia ka 316 i loko o Mo, a ʻike ʻia ʻo 316 ka ʻoi aku ka maikaʻi o ka corrosion. ʻOi aku ka pale ʻana i ka corrosion ma mua o 304 i ke kaiapuni wela kiʻekiʻe. No laila, i nā wahi wela kiʻekiʻe, koho maʻamau nā mea ʻenekinia i nā ʻāpana i hana ʻia i nā mea 316. Akā, ʻo ka mea i kapa ʻia ʻaʻohe mea paʻa, i loko o ke kaiapuni sulfuric acid concentrated, mai hoʻohana i ka 316 no ke kiʻekiʻe o ka mahana! A i ʻole, lilo paha kēia mea i mea nui. ʻO ka mea e aʻo i ka mechanics ua aʻo i nā kaula, a e hoʻomanaʻo i mea e pale ai i ka hopu ʻia ʻana o nā kaula i nā wela kiʻekiʻe, pono e hoʻohana ʻia kahi lubricant paʻa ʻeleʻele: molybdenum disulfide (MoS2), kahi e huki ʻia ai nā helu 2 ʻAʻole: [1] ʻO Mo he mea kūʻokoʻa kiʻekiʻe ka wela (ʻike ʻoe i ka crucible i hoʻohana ʻia i ka crucible Molybdenum? [2]: Hoʻopili maʻalahi ka Molybdenum me nā ion sulfur high-valent e hana i ka sulfide. No laila, ʻaʻohe ʻano kila kuhili ʻole i hiki ke lanakila a kū i ka corrosion. I ka hoʻoholo hope ʻana, ʻo ke kila kila he ʻāpana kila me nā mea haumia ʻē aʻe (akā, ʻoi aku ka pale ʻana o kēia mau haumia ma mua o ke kila^^), a hiki ke hana ke kila me nā mea ʻē aʻe.

Nānā maikaʻi o ka ʻili:

Hoʻoholo nui ʻia ka maikaʻi o ka ili o 304 stainless steel e ka hana pickling ma hope o ka mālama ʻana i ka wela. Inā mānoanoa ka ʻili oxide o ka ʻili i hoʻokumu ʻia e ke kaʻina hana wela ma mua a ʻaʻole kūlike paha ke ʻano, ʻaʻole hiki i ka pickling ke hoʻomaikaʻi i ka hoʻopau ʻana o ka ʻili a me ka like. No laila, pono e uku piha i ka hoʻomehana ʻana o ka hoʻomaʻemaʻe wela a i ʻole ka hoʻomaʻemaʻe ʻana i ka ʻili ma mua o ka mālama ʻana i ka wela.
Inā ʻaʻole like ka mānoanoa o ka oxide o ka pā kila kila, ʻokoʻa ka ʻili o ka metala kumu ma lalo o kahi mānoanoa a me ka wahi lahilahi. ʻOkoʻa, no laila, ʻaʻole kūlike ka ʻili o ka pā kila. No laila, pono e hana like i nā unahi oxide i ka mālama ʻana i ka wela a me ka hoʻomehana. No ka hoʻokō ʻana i kēia koi, pono e noʻonoʻo ʻia i kēia mau pilikia:
Inā hoʻopili ʻia ka ʻaila i ka ʻili o ka mea hana i ka wā e wela ai ka pā kila kuhiliʻole, ʻokoʻa ka mānoanoa a me ka hoʻohui ʻana o ka unahi oxide ma ka ʻāpana i hoʻopili ʻia i ka ʻaila mai ka mānoanoa a me ka hoʻohui ʻana o ka unahi oxide ma nā ʻāpana ʻē aʻe, a e hana ʻia ka carburization. ʻO ka ʻāpana carburized o ka metala kumu ma lalo o ka ʻili oxide e hoʻouka nui ʻia e ka waikawa. He hopena maikaʻi nō hoʻi nā kulu ʻaila i hoʻoheheʻe ʻia e ka mea puhi ʻaila kaumaha i ka wā o ka puhi mua ʻana inā pili lākou i ka mea hana. Hiki ke loaʻa ka hopena ke hoʻopili ʻia nā manamana lima o ka mea hana i ka mea hana. No laila, ʻaʻole pono e hoʻopā pono ka mea hana i nā ʻāpana kila kila me kona mau lima, a ʻaʻole e ʻae i ka mea hana e hoʻopaʻa ʻia me ka aila hou. Pono e hoʻokomo i nā mīkina lima maʻemaʻe.
Inā loaʻa kahi ʻaila lubricating i hoʻopili ʻia i ka ʻili o ka mea hana i ka wā o ka hana anu, pono e hoʻomaʻemaʻe piha ʻia i loko o ka trichlorethylene degreasing agent a me ka hopena caustic soda, a laila hoʻomaʻemaʻe ʻia me ka wai mahana, a laila mālama ʻia ka wela.
Inā loaʻa nā mea haumia ma ka ʻili o ka pā kila kila, ʻoi aku ka nui o ka hoʻopili ʻana i ka mea organik a i ʻole ka lehu i ka mea hana, ʻo ka hoʻomehana ʻana e pili i ka unahi.
ʻO nāʻokoʻa o ka lewa i loko o ke kapuahi kīʻaha kila Heʻokoʻa ka lewa i loko o ka umu ahi i kēlā me kēia'āpana, a e loli pū ka hoʻokumuʻiaʻana o kaʻili oxide,ʻo ia hoʻi ke kumu o kaʻole ma hope o ka pickling. No laila, i ka wā e hoʻomehana ai, pono e like ka lewa ma kēlā me kēia ʻāpana o ka umu. No kēia hopena, pono e noʻonoʻo ʻia ke kahe o ka lewa.

Eia kekahi, inā loaʻa i nā pōhaku lepo, asbestos, a me nā mea ʻē aʻe i hana i ka paepae i hoʻohana ʻia e hoʻomehana i ka mea hana i ka wai, e hoʻoheheʻe ʻia ka wai i ka wā i wela ai, a ʻokoʻa ka lewa o ka ʻāpana e pili pono ana me ka mahu wai mai nā ʻāpana ʻē aʻe. ʻokoʻa wale nō. No laila, pono e hoʻomaloʻo piha ʻia nā mea e pili pono ana me ka mea hana wela ma mua o ka hoʻohana ʻana. Eia nō naʻe, inā e kau ʻia ma ka lumi wela ma hope o ka hoʻomaloʻo ʻana, e hoʻomau mau ka makū ma ka ʻili o ka mea hana ma lalo o nā kūlana haʻahaʻa kiʻekiʻe. No laila, ʻoi aku ka maikaʻi e hoʻomaloʻo ma mua o ka hoʻohana ʻana.
Inā he koena ka ʻāpana o ka pā kila kila ma mua o ka mālama ʻana i ka wela, e ʻokoʻa ka mānoanoa a me ke ʻano o ka unahi ma waena o ka ʻāpana me ke koena a me ka ʻāpana ʻole ma hope o ka hoʻomehana ʻana, e hopena i ka ʻili ʻole ma hope o ka pickling.
Aia kekahi ʻokoʻa o ka unahi oxide i hana ʻia ma ka ʻili kila kuhiliʻole e pili pono ana me ke kinoea a i ʻole ka ʻaila lapalapa a me kahi i pili ʻole. No laila, pono e mālama i ka ʻāpana lapaʻau mai ka hoʻopili pololei ʻana i ka waha lapalapa i ka wā hoʻomehana.
Ka hopena o ka hoʻopau ʻili ʻokoʻa o ka pā kila kuhili
Inā ʻokoʻa ka hoʻopau ʻana o ka ʻili, ʻoiai inā i wela i ka manawa like, e ʻokoʻa nā unahi oxide ma nā ʻāpana ʻala a maikaʻi o ka ʻili. No ka laʻana, ma kahi i hoʻomaʻemaʻe ʻia ai ka hemahema kūloko a me kahi i hoʻomaʻemaʻe ʻole ʻia, ʻokoʻa ke kūlana o ka hana ʻana i ka ʻili oxide, no laila ʻaʻole kūlike ka ʻili o ka mea hana ma hope o ka pickling.

ʻO ka heluna hoʻoili wela holoʻokoʻa o kahi metala e pili ana i nā kumu ʻē aʻe ma waho o ka conductivity thermal o ka metala. I ka hapanui o nā hihia, ʻo ka coefficient dissipation wela o ke kiʻiʻoniʻoni, ka unahi a me ke kūlana ʻili o ka metala. Mālama ke kila kila i ka maʻemaʻe o ka ʻili, no laila ʻoi aku ka maikaʻi o ka hoʻoili ʻana i ka wela ma mua o nā metala ʻē aʻe me ka ʻoi aku o ka wela wela. Hāʻawi ʻo Liaocheng Suntory Stainless Steel i ka 8. Nā kūlana ʻenehana no nā papa kila kila ʻO nā pā kila kila ikaika me ka maikaʻi o ka corrosion kū'ē, ka hana kulou ʻana, ka paʻakikī o nā ʻāpana welded, a me ka hana stamping o nā ʻāpana welded a me kā lākou hana hana. ʻO ke kiko'ī, C: 0.02% a iʻole ka liʻiliʻi, N: 0.02% a iʻole ka liʻiliʻi, Cr: 11% aʻoi aʻe a emi iho ma lalo o 17%, kūpono maʻiʻo o Si, Mn, P, S, Al, Ni, a hoʻomāʻona i ka 12≤Cr Mo 1.5Si≤ 17. ʻO ka pā kila kila me 1≤ CN ≤ ≤ ≤ ≤ ≤ 0. 0.5(Ni Cu) 3.3Mo≥16.0, 0.006≤CN≤0.030 ua wela i ka 850～1250°C, a laila laweia ma 1°C/s Heat lapaau no ka hooluolu ana maluna o ka helu hooluolu. Ma kēia ala, hiki iā ia ke lilo i pā kila kila ikaika loa me kahi hale i ʻoi aku ma mua o 12% martensite ma ka leo, ka ikaika kiʻekiʻe ma luna o 730MPa, ka pale ʻana i ka corrosion a me ka hana kulou ʻana, a me ka paʻakikī maikaʻi loa i ka wahi i hoʻopili ʻia i ka wela. Hiki i ka hoʻohana hou ʻana iā Mo, B, etc. ʻAʻole hiki i ka lapalapa o ka oxygen a me ke kinoea ke ʻoki i ka pā kila kila no ka mea ʻaʻole maʻalahi ke kila kila. Pono e hana ʻia ka pāpaʻi kila mānoanoa 5CM me nā mea hana ʻoki kūikawā, e like me: (1) Mīkini ʻoki ʻoki Laser me ka wattage ʻoi aku ka nui (mīkini ʻoki laser) (2) mīkini ʻike ʻaila (3) Grinding disc (4) ʻIke lima kanaka (5) Mīkini ʻoki Uea (mekini ʻoki uea). 6