He aha ka austenitic stainless steel?

He aha ka austenitic stainless steel? He aha nā mea o ka austenitic stainless steel? He aha nā ʻano o ka austenitic stainless steel? He aha nā mea hoʻohana o ka austenitic stainless steel? Ma kēia ʻatikala, e pane mākou i kēia mau nīnau me ka kikoʻī.

He aha ka austenitic stainless steel?

He ʻano kūikawā ia o ke kuhili kila kila. Hōʻike ʻia ia e nā mea kiʻekiʻe o ka chromium a me ka nickel. ʻO ke kila Austenitic he non-magnetic a he maikaʻi ke kuʻi ʻana a me nā waiwai formability.

He aha nā mea o ka austenitic stainless steel?

He chromium-nickel alloy ia e pili ana i ka 18% chromium a me 8% nickel. He non-magnetic lākou a ʻoi aku ka nui o ke kūpaʻa corrosion ma mua o nā mea ʻē aʻe ʻano kila kila. ʻAʻole liʻiliʻi ke kila kila Austenitic i nā haʻahaʻa haʻahaʻa.

He aha nā ʻano o ka austenitic stainless steel?

Heʻano kūikawā ia o ke kila kila me nā mea kiʻekiʻe o ka chromium a me ka nickel. Ke hoʻohālikelike ʻia me nā ʻano ʻano kila kila ʻē aʻe, loaʻa iā lākou kahi ʻāpana kalapona haʻahaʻa, e hāʻawi iā lākou i ke kūpaʻa maikaʻi loa i ka corrosion intergranular. Austenitic kila no hoi i maikai formability a weldability.

Aia kekahi mau hiʻohiʻona nui:

• Kūleʻa kino kiʻekiʻe
• ʻO ka ductility kiʻekiʻe a me ka paʻakikī
• ʻO ka formability maikaʻi a me ka weldability
• Hana maikaʻi haʻahaʻa wela

He aha nā mea hoʻohana o ka austenitic stainless steel?

ʻO ia ke ʻano nui o ke kila kila. ʻO lākou nā'āpana chromium-nickel me kahi mea chromium mai ka 16% a hiki i ka 30% a me ka nickel content a hiki i ka 35%. ʻIke ʻia lākou no ko lākou kūpaʻa ʻana i ka corrosion maikaʻi a me nā waiwai mechanical maikaʻi.

Aia kekahi mau noi maʻamau:

• Mea hana meaʻai
• Piko a me nā papa hana
• Nā pahu mālama kemika
• Nā moku kaomi
• Nā mea aerospace

Nā mea hou aku e pili ana i ka nā hoʻohana ʻana i ke kila kuhili ʻole austenitic:

ʻAustenite 304 pā kila kila He mea ia i ʻōlelo ʻia e hāʻawi i ka lepo ikaika a me ka pale ʻana i ka corrosion, ka plasticity maikaʻi loa a me ka paʻakikī, a maʻalahi ke hoʻopaʻa ʻia a hana ʻia. Me ka mānoanoa o 7.93 g/cm³, 304 stainless steel he ʻano maʻamau o ke kila kila, ʻike ʻia hoʻi ʻo 18/8 stainless steel i ka ʻoihana. ʻO kāna mau huahana metala he pale wela a loaʻa nā waiwai mīkini maikaʻi, e hoʻohana nui ʻia i nā ʻoihana e like me ka ʻoihana lako a me ka ʻoihana hoʻonaninani, nā meaʻai a me nā ʻoihana lapaʻau.

Kaʻina hana o Austenitic kuhiliʻole kila

ʻOi aku ka maikaʻi o ke kaʻina hana o ka austenitic stainless steel, ʻoi loa no ka chromium-nickel austenitic stainless steel. Hiki ke hana ʻia nā ʻano kikoʻī maʻamau o ka pā, tube, strip, wire, bar stock, forgings and castings me ka hoʻohana ʻana i nā ʻano hana maʻamau no ka hana ʻana i ke kila kūikawā.

Ma muli o ke kiʻekiʻe o nā mea hao (ʻoi aku ka chromium) a me ka haʻahaʻa kalapona haʻahaʻa, ua hana ʻia ka hapa nui o nā austenitic stainless steels i ka nui me ka hoʻohana ʻana i ka umu ahi arc me ka argon-oxygen decarburization (AOD) a i ʻole vacuum oxygen decarburization (VOD). No nā huahana liʻiliʻi liʻiliʻi kiʻekiʻe, hiki ke hoʻohana ʻia ka hoʻoheheʻe ʻana i ka umu a i ʻole ka hoʻoheheʻe ʻana i ka umu hoʻoheheʻe ʻole, a he pono paha ka hoʻoheheʻe ʻana o ka uila.

ʻO nā waiwai thermoplastic maikaʻi loa o ka chromium-nickel austenitic stainless steel e maʻalahi ke hana i ka hana wela e like me ka forging, rolling, hot piercing, a extrusion. ʻO ka mahana wela o ka ingot kila he 1150-1260 ℃, a ʻo ka pae wela deformation maʻamau he 900-1150 ℃. ʻO nā māka kila i loaʻa ke keleawe, nitrogen, a hoʻopaʻa ʻia me ka titanium a me ka niobium e hilinaʻi i nā haʻahaʻa haʻahaʻa, ʻoiai ʻo ka chromium kiʻekiʻe a me ka molybdenum kila kila e hilinaʻi i nā wela kiʻekiʻe. Ma muli o ka maikaʻi ʻole o ka thermal conductivity, pono e lōʻihi ka manawa insulation.

Ma hope o ka hana wela, hiki ke hoʻoluʻu i ka ea. Loaʻa i ka Chromium manganese austenitic stainless steel ka naʻau ikaika i ka pohā wela. Ke wehe ʻia ka ingot kila, koi ʻia nā deformation liʻiliʻi a me nā ala he nui, a pono e hoʻopaʻa ʻia nā forgings a hoʻomaha. Hiki iā ia ke hana i nā ʻenehana hana anu e like me ka ʻōwili anu, ke kaha kiʻi anuanu, a me ka wili, a me ka hana ʻana i nā hana e like me ke kuʻi ʻana, ke kuʻi, ka wili, a me ka pelu.

ʻOi aku ka nāwaliwali o ka hana paʻakikī o ka chromium-nickel austenitic stainless steel ma mua o ke kila chromium-manganese, a ʻo ka deformation anu ma hope o hoʻokahi annealing hiki ke hiki i 70% a 90%. Eia nō naʻe, ma muli o ke kūpaʻa deformation kiʻekiʻe a me ka hana paʻakikī o ka chromium manganese austenitic stainless steel, pono e hoʻonui ʻia ka helu o ka annealing hoʻoluʻu waena. ʻO ka hoʻomaʻamaʻa ʻana i ka wai hoʻoluʻu ma waena o 1050-1100 ℃.

Hiki ke hoʻohana ʻia ke kila kila Austenitic no ka hana ʻana i nā castings. No ka hoʻomaikaʻi ʻana i ka wai o ka wai kila a hoʻomaikaʻi i ka hana hoʻoheheʻe ʻana, pono e hoʻoponopono ʻia ka hui ʻana o ke kila hoʻoheheʻe: hoʻonui i ka ʻike silika, hoʻonui i ka laulā o ka chromium a me ka nickel content, a me ka hoʻonui ʻana i ka palena kiʻekiʻe o ka maʻi sulfur impurity element. .

Pono e hoʻokuʻu ʻia nā kila kila Austenitic i ka hoʻonā ʻana ma mua o ka hoʻohana ʻana e hoʻonui i ka hopena paʻa o ka carbide a me nā precipitates ʻē aʻe i loko o ke kila i loko o ka austenite matrix, ʻoiai hoʻi i ka homogenizing i ke ʻano a me ka hoʻopau ʻana i ke koʻikoʻi, a laila e hōʻoia ai i ke kūpaʻa maikaʻi loa a me nā waiwai mechanical. ʻO ka ʻōnaehana lapaʻau hoʻonā kūpono ʻo ka wela ma 1050-1150 ℃ a laila maʻalili ka wai (hiki ke hoʻoluʻu ʻia nā ʻāpana lahilahi). ʻO ka wela o ka hoʻonā ʻana e pili ana i ke degere alloying o ke kila: haʻahaʻa haʻahaʻa-molybdenum a haʻahaʻa-molybdenum ʻoi aku ka haʻahaʻa (≤1100 ℃), ʻoiai ʻoi aku ke kiʻekiʻe o nā māka alloyed e like me 00Cr20Ni18Mo-6CuN, 00Cr25Ni22Mo2N, a me nā mea ʻē aʻe (1080). -1150 ℃).

Hoʻohana nui ʻia nā ʻenehana kiʻekiʻe i ka hana ʻana, e like me ka hoʻomaʻemaʻe ʻana ma waho o ka umu a hiki i ka 95%, ka hoʻomau ʻana o ka hoʻoheheʻe ʻana i ʻoi aku ma mua o 80%, a me nā mīkini wili kiʻekiʻe kiʻekiʻe, pololei, a me nā mīkini forging wikiwiki e hoʻolaha nui ʻia. ʻO keʻano,ʻo ka hoʻokōʻana i ka mana kamepiula uila i ka hoʻoheheʻeʻana a me ka hanaʻana e hōʻoia i ka hilinaʻi a me ka paʻa o ka maikaʻi o ka huahana a me ka hana.

Panina

Mahalo iā ʻoe no ka heluhelu ʻana i kā mākou ʻatikala a ke manaʻo nei mākou e hiki iā ʻoe ke hoʻomaopopo maikaʻi he aha ka austenitic stainless steel. Inā makemake ʻoe e ʻike hou aku e pili ana austenitic stainless steel, makemake mākou iā ʻoe e kipa Kinohi Pilikino Sino no ka mea, 'ike hou aku.

Ma ke ʻano he alakaʻi alakaʻi o nā huahana Stainless Steel 304 ma ka honua holoʻokoʻa, hāʻawi ʻo Sino Stainless Steel i nā mea kūʻai aku me ke ʻano kiʻekiʻe  Nā kihi kila kila, Na Kanika Kuleana. 316 a me 316L kila kila, Bara Hexagon Kuhiliʻole, ʻO ke kila kila i ʻōwili ʻia wela, Pepa kila kuhiliʻole kala, Kila kohu ʻole Pepa Pua, He kila kuhiliʻole ka ʻōwili anu, Wili kala kila, a Nā Papa Kūleʻa Pilikino ma ke kumu kūʻai hoʻokūkū loa.