ʻO 400 Series Kūleʻa Kūleʻa?

Hoʻohanohano ʻia ke kila kila no kona pale ʻana i ka corrosion, ka lōʻihi, a me ka hoʻopiʻi nani. Eia naʻe, ʻaʻole i hāʻawi like nā māka kila kuhili ʻole i ka pae like o ka pale ʻana i ka ʻōpala. ʻO kekahi o nā nīnau i nīnau pinepine ʻia ma waena o nā ʻenekinia, nā mea hana hale, a me nā mea hana:He 400 moʻo kila kuhiliʻole?

ʻO ka pane pōkole:ʻae, 400 moʻo kila kuhiliʻole hiki ke ʻōpala, ma lalo o kekahi mau kūlana kaiapuni. ʻOiai ke hāʻawi nei ʻo ia i ka pale corrosion ʻoi aku ka maikaʻi ma mua o ke kila kalapona, hilinaʻi kāna hana i ka pae kikoʻī, haku mele, a me ka ʻoihana lawelawe. Ma kēia ʻatikala, e luʻu mākou i kaʻo ke kūpale ʻana o ka 400 series stainless steel, e ʻimi i nā mea e hoʻoikaika ai i kāna hana, a hāʻawi i ke alakaʻi i kahi a pehea e hoʻohana pono ai.

Ma ke ʻano he mea hoʻolako hilinaʻi o nā huahana stainless steel,sakysteelAia kēia e kōkua iā ʻoe e hoʻomaopopo i ka hana ʻana i nā koho ʻike i ke koho ʻana i ka papa kūpono no kāu papahana.

1. Hoʻomaopopo i ka 400 Series Stainless Steel

ʻO ka 400 series stainless steels he ʻohana oferritic a me martensiticnā mea hoʻoheheʻe kila kila. ʻAʻole like me ka moʻo austenitic 300 (e like me 304 a me 316), ka moʻo 400 maʻamau.liʻiliʻi a ʻaʻohe nikela, e hoʻopilikia nui i ka pale ʻana i ka corrosion.

Loaʻa nā māka moʻo 400 maʻamau:

• 409: Hoʻohana ʻia i nā ʻōnaehana hoʻopau kaʻa

• 410: Mākaukau martensitic kumu nui

• 420: ʻIke ʻia no ka paʻakikī kiʻekiʻe a me nā mea ʻoki ʻoki

• 430: Mea hoʻonani a me ka corrosion-pale no ka hoʻohana i loko

• 440: Ke kalapona kiʻekiʻe, paʻakikī i hoʻohana ʻia no nā ʻili a me nā mea hana

Loaʻa maʻamau kēia mau māka11% a 18% chromium, ka mea i hoʻokumu i kahi papa ʻokikene passive e kōkua i ka pale ʻana i ka ʻōpala. Eia nō naʻe, me ka ʻole o ka mana pale o ka nickel (e like me ka mea i ʻike ʻia ma 300 series), ʻo kēia papaemi paʻama lalo o nā kūlana hakakā.

2. No ke aha e hiki ai i ka 400 Series Stainless Steel Rust?

Hoʻopili kekahi mau kumu i kaʻano ʻeleʻeleo 400 moʻo kila kila:

a) Haʻahaʻa Nickel Content

Hoʻonui ka Nickel i kapaʻa o ka papa chromium oxide passivee pale ana i ke kila kuhiliʻole mai ka ʻino. ʻO ka loaʻa ʻole o ka nickel i nā helu 400 series e hana iā lākouemi i ka corrosion-kuehoʻohālikelike ʻia me 300 series.

b) Hoʻohaumia i ka ʻili

Inā ʻike ʻia i:

• ʻO nā ion Chloride (e laʻa, mai ka wai paʻakai a i ʻole nā paʻakai deicing)

• Nā mea haumia ʻoihana

• ʻO nā koena hoʻomaʻemaʻe kūpono ʻole a hana ʻia paha
  hiki ke hoʻopau ʻia ka ʻāpana chromium oxide pale, e hana ailua ʻino or wahi ʻōpala.

c) Mālama maikaʻi ʻole a i ʻole ka hōʻike

Ma nā kaiapuni waho me ka haʻahaʻa kiʻekiʻe, ka ua waikawa, a i ʻole ka paʻakai paʻakai, ʻoi aku ka maʻalahi o ke kila 400 series i pale ʻole ʻia i ka corrosion. Me ka ʻole o ka hoʻomaʻamaʻa ʻana i ka ʻili, hiki ke hoʻopaʻa ʻia a me ka ʻōpala i ka manawa.

3. Nā ʻokoʻa ma waena o nā papa Ferritic a me Martensitic

ʻO ka moʻo 400 pū kekahiferriticamartensiticnā kila kila, a ʻokoʻa kā lākou hana ma ke ʻano o ka pale ʻana i ka ʻōpala.

Ferritic (e laʻa, 409, 430)

• Magnetic

• ʻO ke kūpaʻa ʻino

• Maikaʻi no nā kaiapuni o loko a i ʻole ka ʻino ʻino

• ʻOi aku ka maikaʻi o ka formability a me ka weldability

Martensitic (e laʻa, 410, 420, 440)

• Paʻa i ka mālama ʻana i ka wela

• ʻOi aku ka nui o ke kalapona

• ʻO ka ikaika kiʻekiʻe a me ke kūpaʻa ʻaʻahu

• ʻAʻole hiki ke pale i ka corrosion ma mua o ka ferritic ke ʻole ka passivated a i uhi ʻia

ʻO ka hoʻomaopopo ʻana i ka subclass āu e hoʻohana nei he mea koʻikoʻi ia i ka helu ʻana i ka hana ʻino.

4. Nā noi honua maoli a me kā lākou mau manaʻo hoʻopōʻino

ʻO kakoho o 400 moʻo papapono e kulike me kaʻike kaiapuni o ka noi:

• 409 Ke kila kila: Hoʻohana pinepine ʻia i nā hoʻopau kaʻa. Hiki ke ʻōpala i ka manawa akā hāʻawi i ke kūpaʻa corrosion e ʻae ʻia no nā wahi wela wela.

• 410 Ke kila kila: Hoʻohana ʻia i nā ʻoki ʻoki, nā kīwī, nā mea hoʻopaʻa. Hiki i ka corrosion me ka ʻole o ka passivation o ka ʻili.

• 430 Ke kila kila: He mea kaulana no na lako kīhini, nā poho, a me nā paneli hoʻonani. He maikaʻi ke kūpaʻa ʻino i loko, akā hiki ke pala inā hoʻohana ʻia ma waho.

• 440 Ke kila kila: ʻO ka paʻakikī kiʻekiʻe no nā lau a me nā mea hana ʻokiʻoki, akā hiki ke hoʻopaʻa ʻia i ka lua i loko o nā wahi ʻoluʻolu inā ʻaʻole i hoʻopau pono ʻia.

At sakysteel, ke aʻo aku nei mākou i nā mea kūʻai aku i ka helu 400 series kūpono loa e pili ana i ko lākou ʻike kaiapuni a me nā manaʻo corrosion.

5. Hoʻohālikelike i ka 400 Series me 300 Series Stainless Steel