304, wuhlobo lwensimbi engagqwali, igama laseMelika.Igama layo lomkhiqizo waseShayina yi-06Cr19Ni10, eyinkimbinkimbi kakhulu futhi enzima ukuyifunda, ngakho-ke sikhetha ukuyibiza ngokuthi "304 stainless steel".
Ingabe i-304 insimbi engagqwali iyafana nebanga lokudla 304 insimbi engagqwali?Akunjalo!Ibanga lokudla kanye nomkhiqizo, kungokwezinhlelo ezimbili, kodwa kunezixhumanisi ezingenakubalwa.Njengendoda engaba kokubili indoda nobaba—ingabe indoda kufanele ibe ubaba?Akunjalo.

Inkambu yensimbi engagqwali iyafana, umkhiqizo unquma ukumelana nokugqwala kwensimbi engagqwali.Ukuthi izinga lokudla, ngaphezu kokumelana nokugqwala kwezidingo zensimbi engagqwali, kodwa nakumthofu, i-chromium, i-nickel, i-cadmium, izinkomba ze-arsenic ezinhlanu zensimbi esindayo zinezimfuneko.
Kamuva, kwatholakala ukuthi insimbi engagqwali engahlangabezana nezidingo zemvula yensimbi esindayo ingahlangabezana nezidingo zomkhiqizo.Ngakho in the standard kazwelonke GB9684-2011 "izindinganiso kazwelonke ukuphepha kokudla Imfuneko imikhiqizo yensimbi engagqwali, ikhanseliwe, zidinga kuphela metal esindayo deposition (kushintshwe ngenye indlela, kodwa empeleni futhi JiuGuo uphawu cishe), ngakho esetshenziswa namuhla insimbi engagqwali tableware, kuba engalungile ezidingweni zomkhiqizo, kodwa ngesikhathi esifanayo, inqobo nje uma ikwazi ukuzuza izinga lokudla, Kumele ikwazi ukufeza okungenani izinga lensimbi engagqwali engama-304.

Manje, izinga lokudla 304 insimbi engagqwali 304 insimbi engagqwali ukuhlangabezana izinga kwezulu metal esindayo;Futhi insimbi engagqwali engu-304 ejwayelekile, ayihlolwa yi-GB 9684.
Igama le-NATIONAL standard standard GB 9684 Izinga Likazwelonke Lokuphepha Kokudla Kwemikhiqizo Yensimbi Engenasici.Leli zinga likazwelonke lithathelwe indawo ngo-2017 yi-GB 4806.9-2016 National Standard for Food Safety metallic Materials and Products esetshenziswa Ekuxhumaneni Nokudla (leli zinga elisha lihlanganisa izindinganiso kazwelonke ezimbili zangempela ezisebenza ensimbi engagqwali (GB 9684) kanye ne-aluminium (GB 11333) ).

Okusho ukuthi, insimbi engagqwali yebanga lokudla ihambisana nezinga le-GB4806.9-2016 eliphoqelekile likazwelonke "Ukuphepha kokudla ukuthintana kokudla okujwayelekile kuzwelonke ngezinto zensimbi nemikhiqizo" insimbi engagqwali.
Mayelana nezitsha zensimbi ezingenasici, izinga elisha le-NATIONAL (GB 4806.9) liyacacisa:
4.1.3 Izitsha zensimbi engagqwali kufanele zenziwe nge-austenitic stainless steel, austenitic ferritic stainless steel, ferritic stainless steel kanye nezinye izinto zensimbi engagqwali;
Kuleli zinga LIKAZWELONKE, ukuhlinzekwa kokuhlolwa kokufuduka, faka izinto zensimbi engagqwali esixazululweni sokudla esilingiswayo (isixazululo esine-acidic ngokuvamile) sokucwiliswa, ngemva kokufinyelela esivivinyweni sesikhathi esishiwo ukuthi zikhona yini izakhi ezithile esixazululweni, njengoba kuboniswe etafuleni elilandelayo.

Njengoba kubonakala etafuleni, izakhi eziyingozi zihlanganisa i-arsenic, i-cadmium, i-lead, i-chromium, i-nickel nezinye izakhi ezinhlanu, inqobo nje uma izakhi ezinhlanu zesixazululo sokuhlola zingeqi inani elishiwo etafuleni, ungasho ukuthi lokhu Iqoqo lezinto insimbi engagqwali yebanga lokudla.
Sithenga i-tableware (empeleni kuthiwe “i-tableware” ayiyona indinganiso impela, kufanele kube “ukudla kokuxhumana kwensimbi engagqwali”), kufanele ikakhulukazi sibone ukupakishwa kwayo kunamagama “e-GB4806.9-2016″, kuphela ngokutholwa kwemikhiqizo, singaqiniseka ukuthenga.

Kodwa-ke: eminye imikhiqizo yensimbi engagqwali izodlala "ibanga lokudla elingu-304" lensimbi, eqinisweni, siyazi ubuchopho obuncane, "i-304" ngokwayo akulona igama lesiShayina, lolu phawu lungaba kanjani igunya lophawu lwesitifiketi?
Ukulebula okunjalo kusewumkhiqizo ongekho emthethweni, futhi akukho “ukulebula” okusemthethweni eZingeni.Isigaba 4 kuphela "Okunye" sibhekisela ekulebeni embhalweni wokuqala.4.1: “Okuthintana naye ngokudla” kuzofakwa ilebula emkhiqizweni noma ephaketheni elincane lokuthengisa.Ayikho imiyalelo noma izakhi ezengeziwe.
Ngakho-ke noma ngabe sikhona lesi sitembu noma cha, akufanele sahlulele ikhwalithi yensimbi engagqwali ngokushintshana.Noma kunjalo lowo musho, bona ukuthi ingabe ikhona yini i-“GB4806.9-2016” ephaketheni, ethembeke kakhulu.

Insimbi engagqwali yezinga lokudla ikakhulukazi inensimbi engagqwali engu-304 kanye nensimbi engagqwali engu-316
1. 304 insimbi engagqwali ingamelana nokugqwala kanye ne-oxidation yezinto zamakhemikhali.Izinto ezijwayelekile zompheki wensimbi engagqwali zingaphezu kuka-304. 2, 316 insimbi engagqwali ingcono, iqukethe i-nickel engu-10%, ukumelana nokugqwala okwengeziwe, isetshenziswa kabanzi kwezokwelapha, akukho mvula ye-ion yensimbi, iphephe kakhulu.

Ibanga lokudla 304 kanye ne-SUS304 umehluko wensimbi engagqwali
I-SUS304 isho insimbi engagqwali engu-304.I-SUS iyindinganiso yezinto zaseJapan, insimbi engagqwali engu-304 ikhiqizwa ngokuhambisana nezinga le-ASTM laseMelika lohlobo lwensimbi engagqwali.I-304 ilingana ne-China 06Cr19Ni10 insimbi engagqwali, iJapan iphinde yacaphuna i-United States yegama, eyibiza ngokuthi: SUS304.I-SUS304 akuyona neze insimbi engagqwali yebanga lokudla, lena ilebula nje yesiJapane.

Okubizwa ngokuthi "ibanga lokudla", "ibanga lendiza", "ibanga lezokwelapha" noma amagama afanayo, ahambisana nezindinganiso zikazwelonke, bheka nje insimbi futhi awukwazi ukunquma ukuthi lokhu "ibanga le-XX" njengensimbi engu-304 kuphela. imele insimbi ngokuhambisana nokusebenza kwezinga le-304 yensimbi engagqwali ezingeni likazwelonke, Ngokuhambisana kuphela nendinganiso kazwelonke (GB 4806.9-2016 Izindinganiso Zokuphepha Kokudla Kazwelonke Zokuthintana nokudla kwensimbi nemikhiqizo) 304 insimbi engagqwali iyona yangempela " ukudla grade” insimbi engagqwali.
Okwesithathu, ngisho noma izinto zokusetshenziswa zisebenzisa insimbi engagqwali yezinga lokudla langempela, kodwa umkhiqizo wokugcina ungafinyelela "ibanga lokudla" usadinga ukubona izinga lokucubungula nezinto zangaphandle, kuphela konke okuhambisana nezindinganiso zikazwelonke zomkhiqizo kuphephile. "ibanga lokudla" imikhiqizo yensimbi engagqwali.

Ngaphezu kwalokho, izinga le-304 yensimbi engagqwali okufanele lihlukaniswe, ngoba ngokwebanga / imvelaphi / ngokwamazinga ahlukene, ukwakheka kwezinto ezibonakalayo kanye nezakhiwo ezibonakalayo kuyashintshwa.
I-X5crni18-10 — Izinga lamazwe ngamazwe (Ithebula Lokuqhathanisa lemikhiqizo Yensimbi engagqwali emhlabeni)
304/S30400 — American Standard (ASTM Standard ASTM A312 Stainless Steel Tube Chinese version)
SUS304 — JIS G3459 Amashubhu Ensimbi Engagqwali
06Cr19Ni10 — GB/T 20878-2007 Insimbi engagqwali kanye namamaki ensimbi amelana nokushisa kanye nokwakheka kwamakhemikhali