He aha ka Austenitic Stainless Steel?

ʻO ke kila kila Austenitic kekahi o nā ʻano kila kila ma waena o nā ʻoihana ma muli o kona kūpaʻa maikaʻi ʻana i ka corrosion, formability, a me nā waiwai non-magnetic. Inā ʻoe e pili ana i ke kūkulu ʻana, ka hana ʻana i ka meaʻai, ka hana kemika, a i ʻole ka hana lāʻau lapaʻau, ua ʻike paha ʻoe i ka austenitic stainless steel me ka ʻike ʻole.

Ma kēia ʻatikala piha, e wehewehe mākouhe aha ka austenitic stainless steel, kona mau hiʻohiʻona nui, pehea e hoʻohālikelike ai me nā ʻano kila kuhili ʻole, a me kāna mau noi. Inā he mea kūʻai aku ʻoe a i ʻole ʻenekinia e ʻimi ana i ka maopopo i ke koho ʻana i ka metala kūpono, mai kēia alakaʻisakysteele kōkua iā ʻoe e hoʻoholo i ka ʻike.

1. Wehewehe: He aha ka Austenitic Stainless Steel?

Austenitic kuhiliʻole kila he waeʻano o kuhiliʻole kila wehewehe e konaka hoʻoheheʻe ʻia ʻana o ke aniani cubic alo (FCC)., i ʻike ʻia ʻo kapae austenite. Paʻa kēia hale i nā mahana a pau a mālama ʻia ma hope o ka hoʻoilo ʻana mai nā wela kiʻekiʻe.

ʻO nā kila kila Austeniticnon-magnetic i ke kūlana annealed, loaachromium kiʻekiʻe (16–26%)anikela (6–22%)ma loko, a hāʻawiʻoi aku ka pale ʻana i ka corrosion, ʻoi aku ka maikaʻi ma ka hoʻohālikelike ʻana me nā ʻohana kila kila ʻē aʻe.

2. Hoʻohui Kimia

ʻO nā waiwai kūʻokoʻa o ka austenitic stainless steel e loaʻa mai i kāna hana kemika:

• Chromium: Hāʻawi i ka pale ʻana i ka corrosion a hoʻokumu i kahi ʻāpana oxide pale ma ka ʻili.

• Nikela: Hoʻokūpaʻa i ka hale austenitic a hoʻomaikaʻi i ka ductility.

• Molybdenum (koho): Hoʻomaikaʻi i ke kūʻē ʻana i ka lua a me ka crevice corrosion ma nā kaiapuni chloride.

• Nitrogen: Hoʻonui i ka ikaika a me ka pale ʻana i ka corrosion.

• Carbon (haʻahaʻa loa): Hoʻomalu ʻia e pale aku i ka ua carbide a mālama i ka pale ʻana i ka corrosion.

ʻO nā māka maʻamau e like me 304 a me 316 kila kuhiliʻole kekahi ʻāpana o kēia hui.

3. ʻO nā hiʻohiʻona nui o Austenitic Stainless Steel

1. Kūleʻa ʻino maikaʻi loa

ʻO nā kila kila Austenitic ke kūpaʻa loa i kahi ākea o nā kaiapuni corrosive. Hoʻopili kēia i ka ʻinoʻino o ka lewa, ka ʻike ʻana i ka meaʻai a me ka mea inu, a me nā kemika maʻalahi a haʻahaʻa haʻahaʻa.

2. Nā Mea Mākēneki ʻole

Ma ke kūlana annealed, ʻaʻole maʻamau nā kila kulika austenitic. Eia nō naʻe, hiki i ka hana anu ke hoʻokomo i ka magnetism ma muli o ka hoʻokumu ʻana o martensite.

3. Weldability maikaʻi

Hiki ke wiliwili ʻia kēia mau kila me ka hoʻohana ʻana i nā ʻenehana wili maʻamau. Pono paha ka mālama kūikawā no ka pale ʻana i ka ua carbide ma kekahi mau papa.

4. Kiʻekiʻe Ductility a me ka paakiki

Hiki ke kaha kiʻi ʻia nā māka Austenitic, kūlou, a hana ʻia i nā ʻano like ʻole me ka ʻole o ka pohā. Mālama lākou i ka paʻakikī ma nā wela kiʻekiʻe a haʻahaʻa.

5. ʻAʻohe Paʻa Wela

ʻAʻole e like me nā kila kila martensitic, ʻaʻole hiki ke paʻakikī nā māka austenitic e ka mālama wela. Hoʻopaʻakikī maʻamau lākou e ka hana anu.

4. Nā Papa Maʻamau o Austenitic Stainless Steel

• 304 (UNS S30400)
  Hoʻohana nui ʻia ke kila kila. ʻO ke kūpaʻa corrosion maikaʻi loa, ka formability maikaʻi, kūpono no nā ʻoihana he nui.

• 316 (UNS S31600)
  Loaʻa i ka molybdenum no ka hoʻoikaika ʻana i ka corrosion resistance, ʻoi aku hoʻi i nā kaiapuni chloride e like me ke kai a i ʻole nā noi kahakai.

• 310 (UNS S31000)
  ʻO ke kūpaʻa wela kiʻekiʻe, hoʻohana ʻia i nā ʻāpana umu a me nā mea hoʻololi wela.

• 321 (UNS S32100)
  Hoʻopaʻa ʻia me ka titanium, kūpono no nā noi wela kiʻekiʻe kahi e hopohopo ai ka ua carbide.

Loaʻa kēlā me kēia mau māka i nā ʻano like ʻole e like me nā lau, nā paipu, nā kaola, a me nā mea pono, a hiki ke hoʻolako ʻia esakysteelno ka pono o kāu papahana.

5. Nā noi o Austenitic Stainless Steel

Mahalo i ko lākou mau waiwai kaulike, hoʻohana ʻia nā kila stainless austenitic i nā ʻāpana ākea:

1. ʻOihana meaʻai a me nā mea inu

Hoʻohana pinepine ʻia ʻo 304 a me 316 no nā lako hana meaʻai, nā pahu, a me nā mea hana ma muli o ko lākou maʻemaʻe a me ka pale ʻana i ka corrosion.

2. ʻOihana Kimia a Laʻau Laau

Makemake ʻia ʻo 316L no nā reactors, nā paipu, a me nā kiwi i hōʻike ʻia i nā kemika ma muli o kona kūpaʻa kiʻekiʻe i nā chlorides.

3. Na Lapaau Lapaau a me na Lapaau

Ma muli o ko lākou hoʻomaʻemaʻe a me ka biocompatibility, hoʻohana ʻia nā kila stainless austenitic no nā mea hana ʻokiʻoki, implants, a me nā lako halemai.

4. Hoʻolālā a me ke kūkulu ʻana

Hoʻohana ʻia i ka pale ʻana, nā handrails, facades, a me nā alahaka ma muli o ka hoʻopiʻi aesthetic a me ke kūʻē ʻana i ka corrosion kaiapuni.

5. Kaʻa a me ka lawe ʻana

Loaʻa nā ʻōnaehana hoʻopau, ʻoki, a me nā mea hana i ka hui pū ʻana o ka ikaika a me ke kūpaʻa corrosion.

6. Na Mea Hoololi Pumehana a me na Boiler

Hoʻohana ʻia nā māka kiʻekiʻe e like me 310 i nā wahi wela kiʻekiʻe ma muli o ko lākou pale ʻana i ka oxidation.

6. Pehea ka hoʻohālikelike ʻana o Austenitic me nā kila kulika ʻē aʻe