304, nws yog ib hom ntawm stainless hlau, American lub npe.Nws lub npe suav suav yog 06Cr19Ni10, uas nyuaj heev thiab nyeem tsis yooj yim, yog li peb nyiam hu nws "304 stainless hlau".
Puas yog 304 stainless hlau zoo ib yam li zaub mov qib 304 stainless hlau?Tsis zoo ib yam!Khoom noj khoom haus qib thiab hom, muaj nyob rau hauv ob lub tshuab, tab sis muaj ntau qhov sib txuas.Zoo li ib tug txiv neej uas tuaj yeem ua tau txiv neej thiab txiv - txiv neej yuav tsum yog txiv?Tsis tas li.

Stainless hlau teb yog tib yam, lub hom txiav txim siab corrosion kuj ntawm stainless hlau.Txawm hais tias nws yog qib zaub mov, ntxiv rau qhov kev tiv thaiv corrosion ntawm cov hlau tsis muaj steel, tab sis kuj tseem muaj cov hlau lead, chromium, npib tsib xee, cadmium, arsenic tsib hnyav hlau nag lossis daus ntsuas.
Tom qab ntawd, nws tau pom tias cov hlau tsis muaj steel uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov hlau hnyav hnyav tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm hom.Yog li nyob rau hauv lub teb chaws tus qauv GB9684-2011 "Lub teb chaws cov zaub mov kev ruaj ntseg cov qauv yuav tsum tau ntawm stainless steel cov khoom, yog muab tshem tawm, tsuas yog yuav tsum tau hnyav hlau deposition (hloov lwm txoj kev, tab sis yog tiag tiag thiab JiuGuo cim yuav luag), yog li niaj hnub no siv stainless hlau tableware, nws yog. tsis ncaj ncees lawm rau cov khoom lag luam, tab sis tib lub sijhawm, tsuav nws muaj peev xwm ua tiav qib zaub mov, Yuav tsum muaj peev xwm ua tiav yam tsawg kawg 304 stainless hlau qib.

Tam sim no, zaub mov qib 304 stainless hlau yog 304 stainless hlau kom tau raws li tus qauv ntawm cov hlau hnyav nag lossis daus;Thiab zoo tib yam 304 stainless hlau, tsis raug kuaj los ntawm GB 9684.
Lub npe qub NATIONAL standard GB 9684 yog National Standard for Food Safety stainless hlau khoom.Lub teb chaws tus qauv no tau raug hloov nyob rau hauv 2017 los ntawm GB 4806.9-2016 National Standard for Food Safety metallic Materials and Products used in Food Contact (tus qauv tshiab no muab cov qauv qub ob lub teb chaws siv tau rau stainless hlau (GB 9684) thiab txhuas (GB 11333) ).

Uas yog hais, zaub mov qib stainless hlau yog raws li lub teb chaws yuav tsum standard GB4806.9-2016 "Food kev ruaj ntseg lub teb chaws txheem zaub mov tiv tauj nrog hlau cov ntaub ntawv thiab cov khoom" stainless hlau.
Hais txog stainless hlau tableware, tus tshiab NATIONAL standard (GB 4806.9) stipulates:
4.1.3 Stainless hlau tais diav yuav tsum tau ua los ntawm austenitic stainless hlau, austenitic ferritic stainless hlau, ferritic stainless hlau thiab lwm yam ntaub ntawv stainless hlau;
Nyob rau hauv lub teb chaws tus qauv no, kev muab ib tug migration xeem, muab stainless hlau cov ntaub ntawv rau hauv ib tug simulated zaub mov tov (feem ntau acidic tov) rau immersion, tom qab mus txog rau lub sij hawm ntsuam xyuas seb puas muaj tej yam ntsiab nyob rau hauv cov kev daws, raws li qhia nyob rau hauv cov lus nram qab no.

Raws li tuaj yeem pom los ntawm lub rooj, cov khoom tsis zoo muaj xws li arsenic, cadmium, lead, chromium, npib tsib xee thiab lwm yam tsib lub ntsiab lus, tsuav yog tsib lub ntsiab lus hauv cov tshuaj ntsuam xyuas tsis pub tshaj tus nqi teev hauv lub rooj, koj tuaj yeem tshaj tawm tias qhov no. batch ntawm cov khoom yog zaub mov qib stainless hlau.
Peb nyob rau hauv kev yuav khoom tableware (qhov tseeb hais tias "tableware" tsis yog tus qauv, yuav tsum yog "stainless steel hu rau zaub mov"), yuav tsum tau pom nws cov ntim muaj "GB4806.9-2016" cov lus, tsuas yog los ntawm kev tshawb nrhiav cov khoom, peb tuaj yeem so assured mus yuav.

Los ntawm txoj kev: qee cov khoom lag luam stainless hlau yuav ua si "qib zaub mov 304" steel foob, qhov tseeb, peb paub me ntsis lub hlwb, "304" nws tus kheej tsis yog Suav lub npe, yuav ua li cas lub foob no yog txoj cai ntawm daim ntawv pov thawj?
Cov ntawv sau npe no tseem yog cov khoom lag luam tsis raug cai, thiab tsis muaj "labeling" hauv Standard.Tsuas yog ntu 4 "Lwm yam" tsuas yog hais txog kev sau npe hauv cov ntawv qub.4.1: "Kev sib cuag zaub mov" yuav tsum tau sau rau ntawm cov khoom lossis pob muag yam tsawg kawg nkaus.Tsis muaj cov lus qhia lossis cov ntsiab lus ntxiv.
Yog li txawm tias muaj los yog tsis muaj lub stamp no, peb yuav tsum tsis txhob txiav txim qhov zoo ntawm stainless hlau nyob rau hauv lem.Tseem hais cov kab lus, saib seb puas muaj "GB4806.9-2016" ntawm pob, tsuas yog qhov kev ntseeg siab tshaj plaws.

Khoom noj khoom haus qib stainless hlau feem ntau muaj 304 stainless hlau thiab 316 stainless hlau
1. 304 stainless hlau tuaj yeem tiv taus corrosion thiab oxidation ntawm cov tshuaj lom neeg.Cov khoom txheem ntawm stainless hlau siab cooker yog siab dua 304. 2, 316 stainless hlau zoo dua, muaj 10% npib tsib xee, ntau corrosion kuj, dav siv hauv kev kho mob, tsis muaj hlau ions nag lossis daus, nyab xeeb heev

Khoom noj khoom haus qib 304 thiab SUS304 stainless hlau sib txawv
SUS304 yog hais txog 304 stainless hlau.SUS yog cov khoom siv hauv Nyij Pooj, 304 stainless hlau yog tsim raws li American ASTM tus qauv ntawm ib hom stainless hlau.304 yog sib npaug rau Tuam Tshoj tus 06Cr19Ni10 stainless hlau, Nyiv kuj tau hais lub tebchaws United States lub npe, hu ua nws: SUS304.SUS304 tsis yog khoom noj khoom haus qib stainless hlau, qhov no tsuas yog daim ntawv lo rau Japanese.

Lub npe hu ua "food grade", "aviation grade", "medical grade" los yog cov lus zoo sib xws, yog cov qauv ntawm lub teb chaws, tsuas yog saib cov hlau thiab tsis tuaj yeem txiav txim siab qhov no yog "qib XX" xws li 304 stainless hlau nkaus xwb. sawv cev rau cov hlau nyob rau hauv txoj kab nrog kev ua tau zoo ntawm 304 stainless hlau tus qauv hauv lub teb chaws tus qauv, Tsuas yog nyob rau hauv txoj kab nrog lub teb chaws tus qauv (GB 4806.9-2016 National Food Safety standard for food contact metal material and products) 304 stainless hlau yog qhov tiag " zaub mov qib " stainless hlau.
Thib peb, txawm tias cov khoom siv raw siv cov khoom noj khoom haus tiag tiag, tab sis cov khoom kawg tuaj yeem ncav cuag "qib zaub mov" tseem yuav tsum pom cov txheej txheem thiab cov khoom siv sab nraud, tsuas yog tag nrho raws li lub teb chaws cov qauv ntawm cov khoom muaj kev nyab xeeb. "Food Grade" stainless hlau khoom.

Tsis tas li ntawd, qib ntawm 304 stainless hlau yuav tsum txawv, vim hais tias raws li qib / keeb kwm / raws li cov qauv sib txawv, cov khoom tshwj xeeb muaj pes tsawg leeg thiab lub cev muaj zog hloov pauv.
X5crni18-10 - Tus txheej txheem thoob ntiaj teb (Kev Sib Piv Lub Rooj Sib Tham ntawm Stainless Hlau Hom hauv ntiaj teb)
304 / S30400 - American Standard (ASTM Standard ASTM A312 Stainless Hlau Tube Suav version)
SUS304 - JIS G3459 Stainless hlau raj
06Cr19Ni10 - GB / T 20878-2007 Stainless hlau thiab kub resistant steel qib thiab tshuaj muaj pes tsawg leeg