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No ke aha e hoʻohana ʻia ai ke kila kila 304 i ka lumi kuke?

ʻO ka hoʻohana nui ʻana i nā huahana stainless steel he hoʻololi i ka lumi kuke.He nani lākou, lōʻihi, a maʻalahi hoʻi e hoʻomaʻemaʻe.Hoʻololi pololei lākou i ke kala a me ka pā o ka lumi kuke.ʻO ka hopena, ua hoʻomaikaʻi maikaʻi ʻia ka ʻike maka o ka lumi kuke.
Eia nō naʻe, nui nā ʻano kila kuhili ʻole, a ʻaʻole liʻiliʻi ka ʻokoʻa ma waena o lākou.I kekahi manawa lohe ʻia nā nīnau palekana, a he pilikia ke koho ʻana iā lākou.

ʻOi aku i ka wā e pili ana i nā ipu hao, nā papa ʻaina a me nā mea ʻē aʻe e lawe pololei i ka meaʻai, lilo nā mea i ʻoi aku ka maʻalahi.Pehea e hoʻokaʻawale ai iā lākou?Manaʻo ʻo Sanjiangfood (ID: sanjiangfood) e hoʻohana pono nā mea a pau i nā mea āpau i loko o ka lumi kuke.
He aha ke kila kila?
Hoʻoholo ʻia ka hiʻohiʻona kūikawā o ke kila kila e nā mea ʻelua, ʻo ia ka chromium a me ka nickel.Me ka ʻole o ka chromium, ʻaʻohe kila kila, a ʻo ka nui o ka nickel e hoʻoholo i ka waiwai o ke kila kila.

Hiki i ke kila kila ke hoʻomau i kona luster i ka lewa a ʻaʻole ʻōpala no ka mea aia kekahi mau mea o ka chromium alloy element (ʻaʻole i emi iho ma mua o 10.5%), hiki ke hana i kahi kiʻi ʻoniʻoni paʻa ma ka ʻili o ke kila i hiki ʻole ke hoʻoheheʻe ʻia i kekahi mau media. .

Ma hope o ka hoʻohui ʻia ʻana o ka nickel, hoʻomaikaʻi hou ʻia ka hana o ke kila kila.Loaʻa iā ia ka paʻa kemika maikaʻi i ka ea, ka wai, a me ka mahu, a ua lawa kona kūpaʻa i nā ʻano waika, alkali, a me ka paʻakai aqueous solutions, ʻoiai i nā wela kiʻekiʻe a i ʻole I kahi haʻahaʻa haʻahaʻa haʻahaʻa, hiki iā ia ke mālama i kona mau pono o ka corrosion. kūʻē.

Wahi a ka microstructure, ua māhele ʻia ke kila kila i martensitic, austenitic, ferritic a me duplex stainless steels.Loaʻa i ka Austenite ka plasticity maikaʻi, ka ikaika haʻahaʻa, ka paʻakikī, ka hana maʻalahi a me ka hana ʻana, ʻaʻohe ferromagnetism.

Ua puka mai ʻo Austenitic stainless steel ma Kelemania i ka makahiki 1913 a ua hoʻokani mau ʻo ia i ka hana koʻikoʻi ma ke kila kila.ʻO kāna hana a me ka hoʻohana ʻana ma kahi o 70% o ka nui o ka hana a me ka hoʻohana ʻana i ke kila kila.Aia nō nā māka kila nui loa, no laila, ʻo ka hapa nui o nā kila kuhiliʻole āu e ʻike ai i kēlā me kēia lā he mau kila kuhili ʻole austenitic.

ʻO ke kila 304 kaulana ʻo austenitic stainless steel.ʻO 0Cr19Ni9 (0Cr18Ni9) ka pae aupuni Kina mua, ʻo ia hoʻi he 19% Cr (chromium) a me 9% Ni (nickel).ʻO 0 ke ʻano o ke kalapona<=0.07%.

ʻO ka pōmaikaʻi o ke kūlana aupuni Kina, ʻo ia nā mea i loaʻa i loko o ke kila kila i akaka i ka maka.ʻO 304, 301, 202 a pēlā aku, ʻo ia ka inoa o ʻAmelika a me Iapana, akā i kēia manawa ua maʻa nā mea a pau i kēia inoa.color2

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Ka manawa hoʻouna: ʻAukake-24-2021

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