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Chinhu pamusoro pegiredhi rekudya resimbi isina tsvina

1. Izvo zvikamu zvikuru zvesimbi isina tsvina
Zvinhu zvikuru zvesimbi isina tsvina isimbi, chromium, nickel, uye kabhoni kadiki nezvimwe zvinhu.

Chechipiri, kurongeka kwesimbi isina tsvina
Zvinoenderana nechimiro chehurongwa hwezvinhu

Austenitic simbi isina tsvina
Martensitic simbi isina tsvina
Ferritic simbi isina tsvina
Austenitic-ferritic duplex simbi isina tsvina
Kunaya kunoomesa simbi isina tsvina
Iyo inonyanya kuzivikanwa ndeye austenitic Stainless simbi, iyo inobuda yeaustenitic Stainless steel accounts inosvika 75% kusvika 80% yekubuda kwese kwesimbi isina tsvina.

Tatu, austenitic simbi isina tsvina
Yekutanga-yechizvarwa austenitic Stainless simbi inonzi 18-8 simbi (kureva, yedu yakajairika 304 Stainless simbi, 18-8 zvinoreva kuti chromium yemukati inenge 18%, uye nickel 8% ~ 10%), inova yakawanda yakajairika Representative simbi, mamwe austenites ese anogadzirwa pahwaro hwe18-8.

Izvo zvakajairika zvinoumba austenitic Stainless simbi ndezvi:

2XX akatevedzana (chromium-nickel-manganese austenitic simbi isina tsvina, inonyanya kuzivikanwa 201, 202)
3XX akatevedzana (chromium-nickel austenitic simbi isina tsvina, inonyanya kuzivikanwa 304, 316)
Iyo 2XX yakatevedzana yakatanga kubva muHondo Yenyika Yechipiri.Kushandiswa kwenickel sechinhu chekugadzirisa kunonyatsodzorwa munyika dzakasiyana-siyana (nickel inodhura zvikuru).Kuti agadzirise dambudziko rekushayikwa kwakakomba kwekupa nickel, United States yakatanga kugadzira 2XX yakatevedzana zvigadzirwa zvesimbi isina nickel yakaderera.Sechimbichimbi uye kuwedzera kune 3XX yakatevedzana, iyo 2XX yakatevedzana yakagadziridzwa nekuwedzera manganese uye (kana) nitrogen kusimbi kutsiva yakakosha simbi nickel.The 2XX series yakaderera kune 3XX series mukurwisana nekuora, asi zvose hazvisi magineti, saka vepamba Vatengesi vakawanda vasina kutendeseka vanozviita 304 simbi isina tsvina ine yakaderera 201 simbi isina tsvina, asi kunyanya kudyiwa kwemanganese mumuviri wemunhu kunokonzera kukanganisa. iyo sisitimu yetsinga, saka iyo 2XX yakatevedzana haigone kushandiswa kune tableware.

Chechina, ndeupi musiyano uripo pakati pe304, SUS304, 06Cr19Ni10, S30408
Aya 18-8 austenitic stainless steels anonzi akasiyana munyika dzakasiyana, 304 (American standard, iro zita reAmerica), SUS304 (Japanese standard, iro zvakare zita rechiJapan), 06Cr19Ni10 (Chinese standard, iro ndiro zita rechiChinese) , S30408 ​​(S30408 ​​​​inhamba yeUNS ye06Cr19Ni10, uye United States 304 zvakare ine nhamba inoenderana neUNS yeS30400).Mitemo yenyika yakasiyana ichave yakasiyana zvishoma, asi pakupedzisira, izvi zvinogona kuonekwa sezvinhu zvakafanana.

shanu, 304 simbi isina simbi kana 316 simbi isina tsvina izvo zviri nani
Tinowanzo taura kuti 316 simbi isina tsvina inoreva 316L, "L" ndiyo chidimbu che"LOW" kuChirungu, zvinoreva "low carbon".Zvichienzaniswa ne304, 316 simbi isina tsvina yakawedzera zviri munickel, yakaderedza zviri mukati kabhoni, uye ichangobva kuwedzerwa molybdenum (hapana molybdenum mu304).Kuwedzerwa kwe nickel uye molybdenum kunowedzera kusimba kwayo kwekuora uye kupisa kwakanyanya.Chokwadi, mutengo Uyewo yakakwirira.316 inonyanya kushandiswa mugungwa, yakanyanya-tembiricha distillation, yakakosha midziyo yekurapa uye nemimwe midziyo inoda corrosion resistance uye yakakwirira tembiricha kuramba, saka 304 inokwana kune zvakajairika kubata chikafu.

Nhanhatu, chii chinonzi chikafu chegiredhi Stainless simbi
Chikafu-giredhi Stainless simbi inoreva simbi isina tsvina inosangana nenyika inosungirwa mwero GB4806.9-2016 "National Food Safety Standard uye Metal Materials uye Zvigadzirwa Zvekudya Kubata".

Zvinogona kuonekwa kubva pane zviri pamusoro apa kuti nyika ine zvinhu zviviri zvinonyanya kudiwa pakudya-giredhi simbi isina tsvina: chimwe ndechekuti mbichana dzinofanirwa kuzadzisa zvinodiwa, uye imwe ndeyekuti kunaya kwesimbi inorema muzvigadzirwa izvi zvinofanirwa kusangana nechikafu-giredhi. mitemo.

Shamwari dzakawanda dzinobvunza kana 304 simbi isina tsvina iri chikafu chegiredhi simbi isina tsvina?
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Mhinduro ndeiyi: 304 Stainless simbi "haina kuenzana" chikafu-giredhi Stainless simbi.304 chiyero cheAmerica.Sezvineiwo, hazvigoneke kuti chiyero cheChinese chishandise izwi rekuti "304" sechiyero cheAmerica, asi kazhinji kutaura, "kunyanya kurapwa 304 simbi isina tsvina" chikafu Grade Stainless simbi, yakajairika 304 Stainless simbi haisi yegiredhi rekudya simbi isina tsvina, 304 simbi isina tsvina ine huwandu hwakawanda hwekushandiswa kwemaindasitiri, uye mazhinji acho haasi giredhi rekudya.


Nguva yekutumira: Aug-24-2021

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