Simbi isina tsvina yemhando yepamusoro inoreva zvinhu zvesimbi isina tsvina zvinoenderana neNational Standard of the People's Republic of China / Sanitary Standards for Stainless Steel Utensil Containers GB 9684-88. Muviri wayo we lead ne chromium wakaderera zvikuru pane wesimbi isina tsvina yemhando yepamusoro.
Kana simbi dzinorema dzinoshandiswa nesimbi dzisina ngura dzikapfuura muganho, zvinogona kuisa hutano hwevanhu panjodzi. Nekuda kweizvi, National Food Safety Standard ye "Stainless Steel Products" (GB9684-2011) yakaisa mitemo yakasimba yekudonhedza simbi dzakasiyana-siyana dzakadai sechromium, cadmium, nickel, uye lead mumidziyo yekubikira. Chimwe chikonzero ndechekuti nekuwedzera kwehuwandu hwemanganese musimbi isina ngura, pane kurasikirwa nemabasa akadai sekudzivirira ngura uye kudzivirira ngura kwemubiki. Kana huwandu hwemanganese hwasvika pamutengo wakatarwa, chigadzirwa ichi hachigone kushandiswa semubiki kana kuti hachigone kunzi mubiki wesimbi isina ngura. Asi kunyangwe nehuwandu hwakawanda hwemanganese, kazhinji hapana kukanganisa hutano. 304 simbi isina ngura isimbi isinga ngura yakajairika, inonziwo 18-8 simbi isina ngura muindasitiri. Kudzivirira kwayo ngura kuri nani pane 430 simbi isina ngura, kudzivirira ngura zvakanyanya, uye kudzivirira kupisa kwakanyanya, kushanda zvakanaka kwekugadzirisa, saka inoshandiswa zvakanyanya muindasitiri, kushongedzwa kwefenicha, uye indasitiri yekurapa, semuenzaniso, mamwe matafura esimbi isina ngura emhando yepamusoro, imba yekugezera, midziyo yekicheni.
Kuti simbi isingatsvinyi ngura irambe yakasimba, simbi inofanira kunge iine chromium inopfuura 17% uye nickel inopfuura 8%. Kana tichienzanisa, 201, 202 simbi isingatsvinyi ngura (inozivikanwa sesimbi ine manganese yakawanda) inowanzo shandiswa muzvigadzirwa zvemaindasitiri uye haigone kushandiswa semidziyo yekudya, nekuti: Manganese yakawanda inodarika mwero, kudya manganese zvakanyanya mumuviri wemunhu kunokonzera kukuvara kwetsinga.
Muhupenyu hwezuva nezuva, tine mukana mukuru wekubata zvigadzirwa zvesimbi isingatsvi, uye mapoto emagetsi esimbi isingatsvi ndeimwe yacho. Zvakaoma kusiyanisa kuti ndeapi ari "201″? Ndeapi ari "304″?"
Kuti musiyanise zvinhu zvakasiyana-siyana zvesimbi isina ngura, nzira iri murabhoritari inonyanya kukosha pakuona kuumbwa kwezvinhu. Pane musiyano mukuru mukugadzirwa kwesimbi yezvinhu zvakasiyana-siyana zvesimbi isina ngura. Kune vatengiwo zvavo, nzira iyi inonyanya kukodzera uye haina kukodzera, uye inonyanya kukodzera kushandisa 304 manganese content test agent. Ingoda kudonhedza pamusoro kuti uone kana zvinhu zvacho zvine manganese inodarika mwero, nokudaro zvichisiyanisa 201 stainless steel ne304 stainless steel. Uye pamusiyano uripo pakati pe304 stainless steel yakajairika ne304 stainless steel yemhando yechikafu, bvunzo dzakadzama dzerabhoritari dzinodiwa kuti dzisiyane. Asi tinofanira kuziva kuti kuumbwa kwesimbi isina ngura yechikafu ndiko kwakanyanya kuomarara, nepo simbi isina ngura yeindasitiri iri nyore.
zvinhu zvinosangana negwaro renyika reGB9684 uye zvinogona kusangana nechikafu pasina kukonzera kukuvara mumuviri. Simbi isingatsvedzeri yeGB9864 isimbi isingatsvedzeri inosangana negwaro renyika reGB9684, saka simbi isingatsvedzeri yeGB9864 isimbi isingatsvedzeri yemhando yefood. Panguva imwe chete, inonzi 304 stainless steel haidiwi kuti isimbi isingatsvedzeri yemhando yeGB9684. Simbi isingatsvedzeri ye304 haina kufanana nesimbi isingatsvedzeri yemhando yefood. Simbi isingatsvedzeri ye304 haingoshandiswi mumidziyo yekicheni chete asiwo inoshandiswa zvakanyanya muindasitiri. Panguva yekutenga, zvigadzirwa zvenguva dzose zvichave negwaro rekuti "food grade 304 stainless steel" pamusoro nepamadziro emukati mechigadzirwa, uye zvigadzirwa zvakanyorwa ne "food grade-GB9684" zvakachengeteka zvakanyanya.
Nguva yekutumira: Nyamavhuvhu-29-2023