Insimbi engagqwali iyinsimbi ekhethekile ye-alloy enokumelana nokugqwala okuhle kakhulu ngokungeza izakhi ze-alloy ukumelana nokugqwala njengethusi, nickel, ne-chromium.

Lolu hlobo lwensimbi lungamelana nokuguguleka kwemithombo yezindaba ehlukahlukene egqwala kakhulu.

Ukumelana nokugqwala kwayo kuphakeme izikhathi ezi-2-8 kune-carbon steel evamile. Njengoba isikhathi sokusebenzisa sikhula, ukumelana nokugqwala kuya kugqama kakhulu.

Insimbi engagqwali iwuhlobo lwensimbi oluvikela ukugqwala, okuyenza ingagqwali.

insimbi ukumelana nokugqwala

Izinsimbi ezingenasiciama-alloys asekelwe ku-iron aqukethe ubuncane be-chromium engu-10.5%, eyanele ukuvimbela ukugqwala ngaphansi kwezimo zomoya ezijwayelekile zegumbi.

Ngaphezu kokumelana nokugqwala okuhle, insimbi engagqwali nayo inezakhiwo ezinhle kakhulu zemishini, izakhiwo zokushisela, njll.

Ngakho-ke, isetshenziswa kabanzi embonini ye-petrochemical, ubunjiniyela basolwandle, imboni yamakhemikhali, ubunjiniyela bokuvikela imvelo, ubunjiniyela bamandla kanye neminye imikhakha ukwenza imishini ehlukahlukene, amapayipi, amathangi okugcina, izingxenye, njll. ukuze kuqinisekiswe ukusebenza okuzinzile nokuphepha kwesikhathi eside. imishini.

NgoMashi 11, 2024, i-European Commission yakhipha isimemezelo sokuthi yenze isinqumo sokugcina sokulwa nokulahla ukushona kwelanga mayelana ne-Corrosion Resistant Steels evela eChina, yanquma ukuthi uma izindlela zokulwa nokulahlwa zikhanseliwe, ukulahlwa kwemikhiqizo. ehilelekile futhi umonakalo wokulahla okudalwe ezimbonini ze-EU uzoqhubeka noma wenzeke futhi, ngakho-ke kwanqunywa ukuqhubeka nokugcina imisebenzi yokulwa nokulahlwa kwemikhiqizo yaseShayina ehilelekile.

Izilinganiso zentela zokulwa nokulahlwa zingu-17.2% ukuya ku-27.9%.

Leli cala libandakanya amakhodi e-EU CN (Combined Nomenclature) ex 7210 41 00, ex 7210 49 00, ex 7210 61 00, ex 7210 69 00, ex 7212 30 00, ex 7212 50 70 625 ex 7212 50 70 62 5 92 00, ex 7225 99 00, ex 7226 99 30

kanye ne-ex 7226 99 70 (amakhodi e-EU TARIC athi 7210 41 00 20, 7210 49 00 20, 7210 61 00 20, 7210 69 00 20, 7212 30 00 2 72 12, 7212 50 69 20, 7225 92 00 20, 7225 99 00 22, 7225 99 00 92, 7226 99 30 10 kanye 7226 99 70 94).

Isikhathi sophenyo sokulahlwa kuleli cala sisuka kuJanuwari 1, 2022 kuya kuDisemba 31, 2022, futhi isikhathi sokuphenya ngomonakalo sisuka ngoJanuwari 1, 2019 kuze kube sekupheleni kwesikhathi sophenyo lokulahla.

Ngomhla ziyisi-9 kuZibandlela wezi-2016, iKhomishini YaseYurophu yethula uphenyo olumelene nokulahlwa kwensimbi engagqwali evela eChina.

Ngomhla ziyisi-8 kuNhlolanja wezi-2018, iKhomishini YaseYurophu yenza isinqumo sokugcina sokungalahli insimbi engagqwali evela e-China.

Ngomhla ziyisi-8 kuFebhruwari, 2023, Ikhomishini YaseYurophu yethula uphenyo lokuqala lokubuyekezwa kokushona kwelanga lokulwa nokulahla ngensimbi ekwazi ukumelana nokugqwala evela eChina.

Kunamamodeli ahlukahlukene ensimbi engagqwali, eklanywe ngokuyinhloko ngokuya ngezindawo ezihlukene zohlelo lokusebenza kanye nezidingo zokumelana nokugqwala.

Nawa amamodeli ensimbi ajwayelekile amelana nokugqwala:

304sipuleti lensimbi engagqwali:Le modeli inokumelana nokugqwala okuhle nokusebenza kokucubungula, futhi isetshenziswa kabanzi ezimbonini zokudla, ezemithi, zamakhemikhali nezinye.

316 ipuleti lensimbi engagqwali:I-Mo element yengezwa ngesisekelo se-304 ukuze kuthuthukiswe ukumelana nokugqwala nokusebenza kwezinga lokushisa eliphezulu, futhi ifanele izindawo ezigqwalile ezinokushisa okuphezulu nokucindezela okuphezulu.

06Cr19Ni10:Lena ipuleti yensimbi engagqwali ye-austenitic ezingxenye zayo eziyinhloko yi-Cr, Ni, C, njll. Inokumelana nokugqwala okuhle nokusebenza kokucubungula futhi isetshenziswa kabanzi embonini yamakhemikhali, i-petroleum neminye imikhakha.

022Cr17Ni12Mo2:Leli ipuleti lensimbi engagqwali elingagqwali kakhulu elikwazi ukumelana nokugqwala elihlanganiswe i-Cr, i-Ni, i-Mo, njll. Linokumelana nokushisa okuhle kakhulu futhi lisetshenziswa kakhulu ku-petrochemical, amakhemikhali e-organic, ezondiza, i-aerospace kanye neminye imikhakha.

00Cr17Ni14Mo2:Lena ipuleti yensimbi engagqwali enamandla amakhulu eyakhiwe yi-Cr, Ni, Mo, njll. Inokumelana nokugqwala okuhle kakhulu nokumelana nokugqoka futhi isetshenziswa kakhulu ekukhiqizeni imishini embonini yamakhemikhali, i-petroleum neminye imikhakha.