Cov hlau tsis xeb uas siv rau zaub mov yog hais txog cov khoom siv hlau tsis xeb uas ua raws li National Standard of the People's Republic of China / Sanitary Standards for Stainless Steel Utensil Containers GB 9684-88. Nws cov hlau txhuas thiab chromium tsawg dua li cov hlau tsis xeb dav dav.
Thaum cov hlau hnyav uas cov khoom siv hlau tsis xeb nkag mus rau hauv kev siv ntau tshaj qhov txwv, nws yuav ua rau tib neeg muaj kev noj qab haus huv. Vim li no, Lub Tebchaws Cov Qauv Kev Nyab Xeeb Khoom Noj ntawm "Cov Khoom Siv Hlau Tsis Xeb" (GB9684-2011) tau teeb tsa cov qauv nruj rau kev sib xyaw ntawm ntau yam hlau hnyav xws li chromium, cadmium, nickel, thiab lead hauv cov khoom siv ua noj. Ib qho laj thawj yog tias nrog kev nce ntawm cov ntsiab lus manganese hauv cov hlau tsis xeb, muaj kev poob ntawm cov haujlwm xws li kev tiv thaiv corrosion thiab kev tiv thaiv xeb ntawm lub qhov cub. Thaum cov ntsiab lus manganese ncav cuag qee qhov nqi, cov khoom no tsis tuaj yeem siv ua lub qhov cub lossis tsis tuaj yeem hu ua lub qhov cub hlau tsis xeb. Tab sis txawm tias muaj cov ntsiab lus manganese siab, feem ntau tsis muaj kev cuam tshuam rau kev noj qab haus huv. 304 stainless hlau yog cov hlau tsis xeb uas siv ntau heev, tseem hu ua 18-8 stainless hlau hauv kev lag luam. Nws qhov kev tiv thaiv corrosion zoo dua li 430 stainless hlau, kev tiv thaiv corrosion siab, thiab kev tiv thaiv kub siab, kev ua haujlwm zoo, yog li nws tau siv dav hauv kev lag luam, kev kho kom zoo nkauj rooj tog, thiab kev lag luam kho mob, piv txwv li, qee cov khoom siv hlau tsis xeb zoo, chav dej, khoom siv hauv chav ua noj.
Yuav kom tswj tau qhov corrosion tsis kam ntawm stainless hlau, hlau yuav tsum muaj ntau tshaj 17% chromium thiab ntau tshaj 8% nickel. Piv txwv li, 201, 202 stainless hlau (feem ntau hu ua high manganese steel) feem ntau yog siv rau hauv cov khoom lag luam thiab tsis tuaj yeem siv ua tableware, vim tias: Manganese cov ntsiab lus ntau tshaj qhov tus qauv, kev noj ntau dhau ntawm manganese hauv tib neeg lub cev yuav ua rau puas tsuaj rau lub paj hlwb.
Hauv lub neej txhua hnub, peb muaj feem ntau yuav raug cov khoom siv hlau tsis xeb, thiab cov lauj kaub hluav taws xob hlau tsis xeb yog ib qho ntawm lawv. Nws nyuaj rau paub qhov txawv ntawm cov twg yog "201"? Cov twg yog "304"?
Yuav kom paub qhov txawv ntawm cov khoom siv hlau tsis xeb no, txoj kev hauv chav kuaj mob feem ntau yog los nrhiav cov khoom sib xyaw. Muaj qhov sib txawv tseem ceeb ntawm cov hlau sib xyaw ntawm cov khoom sib txawv ntawm cov hlau tsis xeb. Rau cov neeg siv khoom ib txwm, txoj kev no yog kev tshaj lij dhau thiab tsis haum, thiab qhov tsim nyog tshaj plaws yog siv tus neeg sawv cev kuaj 304 manganese. Tsuas yog yuav tsum poob rau ntawm qhov chaw kom paub seb cov khoom siv puas muaj cov manganese ntau dua li tus qauv, yog li ntawd thiaj paub qhov txawv ntawm 201 stainless hlau thiab 304 stainless hlau. Thiab rau qhov sib txawv ntawm 304 stainless hlau ib txwm thiab cov hlau tsis xeb qib zaub mov, yuav tsum tau kuaj hauv chav kuaj mob kom ntxaws ntxiv kom paub qhov txawv. Tab sis peb yuav tsum paub tias cov khoom sib xyaw ntawm cov hlau tsis xeb qib zaub mov yog qhov nruj tshaj plaws, thaum cov hlau tsis xeb rau kev lag luam yooj yim dua.
cov khoom siv uas ua tau raws li daim ntawv pov thawj GB9684 hauv tebchaws thiab tuaj yeem kov cov zaub mov yam tsis ua rau lub cev raug mob. GB9864 stainless hlau yog cov khoom siv stainless hlau uas ua tau raws li daim ntawv pov thawj GB9684 hauv tebchaws, yog li GB9864 stainless hlau yog stainless-grade zaub mov. Tib lub sijhawm, qhov hu ua 304 stainless hlau tsis tas yuav tsum tau ntawv pov thawj los ntawm tus qauv GB9684 hauv tebchaws. 304 stainless hlau tsis sib npaug rau cov zaub mov-grade stainless hlau. 304 stainless hlau tsis yog siv rau hauv chav ua noj xwb tab sis kuj siv dav hauv kev lag luam. Thaum lub sijhawm yuav khoom, cov khoom ib txwm yuav muaj cim "zaub mov qib 304 stainless hlau" ntawm qhov chaw thiab phab ntsa sab hauv ntawm cov khoom, thiab cov khoom cim "zaub mov qib-GB9684" muaj kev nyab xeeb dua.
Lub sijhawm tshaj tawm: Lub Yim Hli-29-2023