Thaum cov hlau hnyav tsiv mus rau hauv kev siv cov khoom siv hlau tsis muaj zog tshaj qhov txwv, nws yuav ua rau tib neeg noj qab haus huv.
Yog li ntawd, kev tsim khoom ntawm stainless hlau cookware yuav tsum nrhiav kev sib npaug ntawm kev tiv thaiv corrosion thiab kev nyab xeeb. Yog tias cov ntsiab lus ntawm npib tsib xee thiab chromium yog siab, qhov kev tiv thaiv corrosion yuav ua kom zoo dua qub, tab sis cov nag lossis daus ntawm npib tsib xee thiab chromium tseem yuav nce ntxiv, uas txhais tau hais tias qhov kev pheej hmoo ntawm kev nyab xeeb yuav nce ntxiv.
Vim li no, lub teb chaws tus qauv kev nyab xeeb khoom noj khoom haus ntawm "Stainless Steel Products" (GB9684-2011) tau ua cov kev cai nruj ntawm cov ntsuas nag lossis daus ntawm ntau yam hlau hnyav xws li chromium, cadmium, nickel thiab txhuas hauv cov tais diav.
Vim li cas lub teb chaws tus qauv tsis qhia txog kev txwv kev tsiv teb tsaws ntawm manganese?
Ib qho laj thawj yog tias nrog kev nce ntawm manganese cov ntsiab lus hauv stainless hlau, nws yog nrog los ntawm kev poob ntawm corrosion kuj thiab xeb kuj ntawm cookware. Thaum cov ntsiab lus manganese nce mus txog ib qho nqi, cov khoom no tsis tuaj yeem siv los ua cookware lossis tsis tuaj yeem hu ua stainless hlau cookware. . Tab sis txawm tias cov qib siab ntawm manganese feem ntau tsis muaj teebmeem kev noj qab haus huv.
Yog li ntawd, txawm hais tias lub teb chaws tus qauv kev ruaj ntseg zaub mov tsis tau teev cov ntsiab lus ntawm manganese, nws qhia meej meej tias qhov tseem ceeb ntawm lub thawv ntim khoom noj yuav tsum tau ua los ntawm stainless hlau uas ua tau raws li lub teb chaws tus qauv.
Khoom noj khoom haus qib stainless hlau yog stainless hlau uas ua tau raws li tus qauv GB9684.
304 stainless hlau yog cov hlau tsis muaj steel ntau heev, tseem hu ua 18-8 stainless hlau hauv kev lag luam. Nws cov corrosion kuj zoo dua 430 stainless hlau, corrosion kuj thiab kub tsis kam, thiab kev ua tau zoo, yog li nws yog dav siv nyob rau hauv kev lag luam thiab rooj tog kho kom zoo nkauj kev lag luam thiab khoom noj khoom haus thiab kev kho mob kev lag luam, xws li: ib co high-qib stainless hlau tableware, chav dej chav ua noj.
304 yog lub hom phiaj dav dav hlau stainless uas tau siv dav los ua cov khoom siv thiab cov khoom siv uas yuav tsum muaj kev sib xyaw ua ke zoo (corrosion resistance and formability).
Yuav kom tswj tau qhov kev tiv thaiv corrosion ntawm cov hlau tsis huv, cov hlau yuav tsum muaj ntau dua 17% chromium thiab ntau dua 8% npib tsib xee.
Feem ntau, 304 stainless hlau tsis yog qib zaub mov, thiab cov txheej txheem tshwj xeeb yog qib zaub mov.
Raws li peb txhua tus paub, cov khoom siv stainless hlau muaj feem xyuam rau "cov khoom noj" yuav tsum siv 304 thiab 316 stainless hlau. Tus nqi ntawm 316 stainless hlau yog siab, thiab nws feem ntau yog siv rau hauv high-end khoom, xws li aerospace, zaub mov machinery thiab lwm yam kev lag luam. Cov khoom noj-qib stainless hlau siv nyob rau hauv cov khoom siv niaj hnub feem ntau yog 304 stainless hlau, uas muaj cov kua qaub thiab alkali tsis kam thiab muaj zog corrosion kuj.
Hauv qhov sib piv, 201, 202 stainless hlau (feem ntau hu ua siab manganese steel) feem ntau yog siv rau hauv cov khoom lag luam thiab tsis tuaj yeem siv los ua tableware vim:
● Cov ntsiab lus npib tsib xee tsis yog raws li tus qauv, cov kua qaub thiab alkali kuj tsis zoo, thiab nws yooj yim rau xeb;
● Cov ntsiab lus ntawm manganese ntau dhau, kev noj ntau dhau ntawm manganese los ntawm tib neeg lub cev yuav ua rau lub paj hlwb puas.