ʻO wai ka mea ʻoi aku ka maikaʻi no ka sus food grade 304 a i ʻole 316 kila kila?

ʻO wai ka maikaʻi? He paʻakikī ke ʻōlelo. Aia ia ma kahi āu e koho ai i ka 304 a me 316 stainless steel, he aha nā koi o ka hana, a pehea e koho ai i kēia mau mea ʻelua. Hoʻohana maʻamau ʻo 304, akā hoʻohana ʻia ʻo 316 no nā koi kūikawā. Inā hoʻohana ʻia ka 304 stainless steel o ka papa meaʻai no ke ola o kēlā me kēia lā, hiki ke hoʻohana ʻia. No nā ipu kemika, hiki ke hoʻohana ʻia ke kila kila 316.

ʻOkoʻa nā haku mele 304 a me 316

304 kila kuhiliʻole, kona haku mele 'ana ocr18ni9316l, austenitic kuhiliʻole kila, mea haku mele 'oocr12mo2ti.

He mau waiwai like ole ko 304 a me 316

Hiki i ka 304 stainless steel ke pale aku i ka corrosion o ka sulfuric acid, phosphoric acid, formic acid, urea, a me nā mea ʻē aʻe he kūpono ia no ka wai maʻamau, ka hoʻokele kinoea, ka waina, ka waiū, ka hoʻomaʻemaʻe hoʻomaʻemaʻe CIP a me nā manawa ʻē aʻe me ka corrosion liʻiliʻi a i ʻole ka hoʻopili ʻana i nā mea.

ʻO ka hoʻohui ʻana o ka mea molybdenum i ka 316L stainless steel grade 304 hiki ke hoʻomaikaʻi maikaʻi i kona kūʻē ʻana i ka intergranular corrosion, oxide stress corrosion a hoʻemi i ke ʻano o ka pohā wela i ka wā wili. Loaʻa iā ia ke kūpaʻa maikaʻi i ka chloride corrosion. Hoʻohana pinepine ʻia i ka wai maʻemaʻe, ka wai i hoʻoheheʻe ʻia, ka lāʻau lapaʻau, ka ʻuala, ka vīneka a me nā wahi ʻē aʻe me nā koi hoʻomaʻemaʻe kiʻekiʻe a me ka hana corrosion ikaika.

Hoʻohana ʻia ka 304 a me 316 no nā kumu like ʻole

304 stainless steel: 18cr-8ni-0.08c, maikaʻi corrosion resistance, oxidation resistance and processability, ikaika oxygen acid resistance, stamping, hiki ke hoʻohana ʻia no ka hana ʻana i nā ipu ʻoihana, nā papa ʻaina, nā mea metala, nā mea hoʻonani hale, nā ala, a me nā mea lapaʻau.

316 kila kila: 18cr-12ni-2.5mo ka mea maʻamau i nā hale kahakai, nā moku, kemika mana nuklea, nā meaʻai meaʻai, nā mea wati, nā ʻoihana lāʻau lapaʻau a me nā mea hana ʻoki. ʻAʻole ia e hoʻomaikaʻi wale i ke kūpaʻa corrosion o nā kemika hydrochloric acid a me ka moana, akā hoʻomaikaʻi pū kekahi i ka pale ʻana o ka brine halogen solution.

304 a me 316 chloride corrosion kū'ē:

ʻO 304 ke kila kila he ʻano kila kila non-magnetic nona ka microstructure ʻaʻole hiki ke hoʻololi ʻia e ka mālama wela.

Ma muli o ka hoʻohui ʻana o ka molybdenum element, 316 stainless steel kahi hanana anti-corrosion kūikawā a ʻoi aku ka ikaika o ka pale ʻana i ka chloride corrosion.

Hoʻokaʻawale ʻia ka pahu wai kila i loko o ke kila kila cylindrical pahu wai a me ka pahu wai i hui pū ʻia. Hana ʻia nā pahu wai pōʻai a me ka huinahā i 304 i loko o ke kila kila a me 201 i waho. Inā loaʻa nā koi kūikawā, hiki ke hoʻonohonoho ponoʻia nā mea, e like me ka 304 i loko, 304 i waho, 316 i loko a me 201 i waho. Hiki ke kuhikuhi i ka koho ma luna, e hoʻomanaʻo e pili, ma hope o nā mea a pau, e noʻonoʻo i ke kumukūʻai. ʻO ke kumu kūʻai o 316 ʻaneʻane ʻelua ma mua o 304.