YUAV UA LI CAS STAINLESS STEEL SAIB XYUAS UAS YUAV TSUM TAU TXAIS KEV UA HAUJ LWM?
Lub hauv paus ntsiab lus ntawm stainless hlau alloys, nrog rau kev tiv thaiv corrosion uas tshwm sim rau cov khoom lub npe, ua rau nws zoo tagnrho rau siv cov kua thiab khoom noj khoom haus. Zoo li lwm yam hlau, stainless hlau yog cov hlau thiab carbon. Txawm li cas los xij, stainless hlau tseem muaj qhov tsawg kawg nkaus ntawm 10.5% chromium nrog cov ntsiab lus carbon tsawg dua 1.2% los tsim cov khoom tiv thaiv corrosion. Lwm cov ntsiab lus alloying zoo li npib tsib xee lossis molybdenum ntxiv rau cov khoom siv corrosion-resistant, tab sis nws yog cov ntsiab lus chromium uas muab cov txheej txheem tiv thaiv chromium oxide rau ntawm cov khoom nto rau kev tiv thaiv corrosion tsis tu ncua. Amazingly, txawm tias qhov chaw yog khawb, cov khoom yuav rov tsim dua nws tus kheej.
Stainless hlau qhov kev tiv thaiv corrosion yog qhov tseem ceeb hauv kev tiv thaiv cov khoom noj lossis dej haus los ntawm kev cuam tshuam nrog cov khoom tsis zoo uas tuaj yeem nkag mus rau hauv cov zaub mov. Txawm li cas los xij, rau txhua yam khoom siv los txiav txim siab qib zaub mov nws yuav tsum ua tau raws li qee yam xwm txheej uas ua raws li FDA cov lus qhia. Hauv lwm lo lus, cov khoom siv yuav tsum tuav qee yam khoom siv sib xws nrog tag nrho cov txheej txheem tuav zaub mov raws li FDA cov cai. Cov khoom siv nws tus kheej yuav tsum muaj zog, corrosion resistant, nonabsorbent, thiab tsis ntxeem tau. Nws yuav tsum yog qhov hnyav thiab tuab kom tiv taus kev ntxuav thiab yaug dua. Cov khoom noj khoom haus qib yuav tsum muaj qhov ua tiav kom yooj yim ntxuav thiab ntxuav qhov chaw. Tsis tas li ntawd, cov khoom yuav tsum tiv thaiv chipping, khawb, qhab nia, pitting, warping, distortion, thiab decomposition. Thaum kawg, cov khoom siv yuav tsum tiv thaiv kev tsiv teb tsaws ntawm cov khoom tsis zoo lossis kev hloov pauv ntawm cov ntxhiab tsw, saj, lossis xim rau cov zaub mov.
CHARACTERISTIS THIAB PROPERTIES OF FOOD-GRADE STAINLESS STEEL
Cov yam ntxwv thiab cov khoom ntawm cov zaub mov qib stainless hlau kos lub thawv ntawm tag nrho cov xwm txheej no. Lub zog thiab kav ntev tso cai rau cov khoom siv los tiv thaiv kev siv hnyav thiab hnav los ntawm kev cuam tshuam, kev sib txhuam, kev puas tsuaj, elasticity, thiab qhov kub thiab txias hloov pauv. Vim nws lub ntsej muag du, tsis muaj qhov ntxeem tau, stainless hlau kuj tseem muaj cov khoom siv tu cev uas txo qhov kev pheej hmoo ntawm cov kab mob loj hlob thiab kis kab mob-cov kab mob, kab mob, thiab txawm tias stains tsis tuaj yeem nkag mus rau hauv cov khoom. Stainless hlau qhov ntxim nyiam, ci ntsa iab zoo nkauj yog qhov zoo nkauj rau lub qhov muag, thiab vim tias cov khoom sib xyaw ua ke elasticity, ductility, thiab hardness, nws tuaj yeem tsim rau hauv ntau yam khoom tsim nyog rau ntau yam khoom noj-kev pabcuam.
FOOD-SAFE STAINLESS STEEL Qib
Raws li tau hais, txawm hais tias muaj ntau qib sib txawv ntawm cov hlau tsis muaj steel, tsuas yog ib txhais tes ntawm 300 thiab 400 series yog suav tias yog zaub mov qib.
Qeb 304 STAINLESS STEEL
Qhov feem ntau siv stainless hlau qib rau cov khoom noj khoom haus yog qib 304, austenitic hom hlau paub txog nws cov ntsiab lus siab nickel thiab ductility.
Kuj tseem hu ua "18-8," vim nws cov 18% chromium thiab 8% npib tsib xee cov ntsiab lus, 304 raug suav hais tias yog nws cov corrosion tsis kam rau feem ntau oxidizing acids, durability, thiab yooj yim ntawm kev huv. Cov khoom siv kuj tau yooj yim welded thiab tsim, uas ua rau nws zoo haum rau fabrication rau ntau yam duab thiab ntau thiab tsawg rau ntau yam khoom thiab cov khoom tsim nyog rau kev ua zaub mov thiab ntau lawm. Qib 304 yog siv rau hauv kev tsim cov tub yees, dab dej, qhov cub, fermentation tank, tshuab ntxuav tais diav, thiab cov tank cia.
Qeb 316 STAINLESS STEEL
Qib 316 yog lwm yam austenitic stainless hlau siv hauv kev tsim khoom noj. Paub txog nws cov khoom tiv thaiv corrosion ntau dua vim nws 16-18% chromium, 10-14% npib tsib xee, thiab 2-3% molybdenum cov ntsiab lus, 316 yog ib qho kev xaiv zoo rau cov khoom noj uas muaj cov ntsev thiab chloride. kev daws teeb meem, piv txwv li, cov uas muaj ntsev ntau los yog acidic cov ntsiab lus. Nws kuj tseem siv tau qhov chaw tu kom tas li thiab xav tau ntau zaus, xws li hauv cov chaw ua cov nqaij.
400 SERIES STAINLESS STEEL
400 series yog ferritic stainless hlau kuj siv hauv kev ua zaub mov. Ferritic alloys yog sib nqus, nrog corrosion-tawg-resistant zog thiab muaj zog tiv thaiv me me organic thiab nitric acids. Qib 420 tsim cov hniav hlais, riam, diav, thiab diav rawg. Qib 430 steel feem ntau yog siv rau hauv cov nroj tsuag ua zaub rau cov ntawv thov tsis muaj corrosive zoo li cov txee, rooj, thiab cov kab tsis khoom noj. Nws cov ntsiab lus npib tsib xee qis ua rau nws tsis tshua muaj kev tiv thaiv corrosion tab sis ua rau qib 430 tsawg dua thiab tus nqi qis dua rau 300- qib qib rau cov ntawv siv zoo sib xws.
