1. Kev faib tawm los ntawm tuab: (1) phaj nyias (2) phaj nruab nrab (3) phaj tuab (4) phaj tuab ntxiv
2. Kev faib tawm los ntawm txoj kev tsim khoom: (1) Kub dov steel phaj (2) Cold rolled steel phaj
3. Muab faib los ntawm cov yam ntxwv saum npoo: (1) Galvanized ntawv (kub-dip galvanized ntawv, electro-galvanized ntawv) (2) Tin-plated ntawv (3) Composite steel ntawv (4) Xim-coated ntawv
4.Classification los ntawm kev siv: (1) Choj steel phaj (2) Boiler steel phaj (3) Shipbuilding steel phaj (4) Armor steel phaj (5) Tsheb steel phaj (6) ru tsev steel phaj (7) steel phaj (8) ) Hluav taws xob steel phaj (silicon steel ntawv) (9) Caij nplooj ntoos hlav steel phaj (10) Thaum tshav kub kub-resistant steel phaj (11) Alloy steel phaj (12) Lwm yam
Cov phaj feem ntau yog cov ntawv luv ntawm cov qauv carbon zoo tib yam.It belongs rau ib pawg loj ntawm cov hlau, xws li: Q235, SS400, A36, SM400, St37-2, thiab lwm yam.Vim lub npe sib txawv ntawm ntau lub teb chaws, cov qauv siv kuj yog Cov phaj sib txawv muaj xws li cov ntawv txias txias thiab cov phaj kub dov.Cold dov daim hlau feem ntau hauv qab 2 hli hauv thickness; Kub dov phaj 2mm-12mm
Galvanized ntawv yog hais txog ib daim ntawv hlau coated nrog ib txheej zinc ntawm qhov chaw.Galvanizing yog ib qho kev lag luam thiab siv tau zoo los tiv thaiv corrosion uas feem ntau siv.Kwv yees li ib nrab ntawm lub ntiaj teb zinc ntau lawm yog siv rau hauv cov txheej txheem no
(1) Muaj nuj nqi
galvanized steel ntawv yog los tiv thaiv corrosion ntawm daim ntawv hlau thiab txuas nws lub neej kev pab cuam.Qhov saum npoo ntawm cov ntawv hlau yog coated nrog ib txheej ntawm hlau zinc.Qhov no galvanized steel ntawv yog hu ua galvanized steel ntawv.
(2)Kev faib tawm
Nws tuaj yeem muab faib ua pawg hauv qab no raws li kev tsim khoom thiab kev ua haujlwm:
①Kub-dip galvanized steel ntawv.Lub nyias steel phaj yog immersed nyob rau hauv lub molten zinc tank, thiaj li hais tias ib tug nyias steel phaj nrog ib tug txheej ntawm zinc yog adhered rau saum npoo.Tam sim no, cov txheej txheem galvanizing tsis tu ncua yog siv rau kev tsim khoom, uas yog, cov ntawv dov steel yog txuas ntxiv rau hauv lub galvanized da dej nrog molten zinc los ua cov ntawv hlau galvanized;
②Alloyed galvanized steel ntawv.Hom steel phaj no kuj yog tsim los ntawm kub dipping txoj kev, tab sis tam sim ntawd tom qab tawm hauv lub tank, nws yog rhuab mus txog 500.°C los ua ib zaj duab xis alloy ntawm zinc thiab hlau.Hom ntawv galvanized no muaj cov xim zoo adhesion thiab weldability;
③Electro-galvanized steel ntawv.Cov ntawv hlau galvanized ua los ntawm txoj kev electroplating muaj kev ua haujlwm zoo.Txawm li cas los xij, txheej txheej yog thinner, thiab corrosion kuj tsis zoo li cov ntawv kub-dip galvanized.
④Ib sab thiab ob sab tsis zoo galvanized steel ntawv.Ib sab galvanized steel ntawv yog ib yam khoom uas yog galvanized ntawm ib sab nkaus xwb.Nyob rau hauv vuam, painting, anti-xeb kev kho mob, ua, thiab lwm yam., nws muaj zoo adaptability tshaj ob-sided galvanized ntawv.Txhawm rau kom kov yeej qhov tsis txaus ntawm cov zinc tsis muaj coated ntawm ib sab, muaj lwm hom galvanized ntawv coated nrog ib txheej nyias ntawm zinc ntawm sab nraud, uas yog, ob sab sib txawv galvanized ntawv;
⑤Alloy, composite galvanized steel ntawv.Nws yog ib lub phaj hlau ua los ntawm zinc thiab lwm yam hlau xws li txhuas thiab zinc alloys thiab txawm plating.Hom steel phaj no tsis tsuas yog muaj kev ua haujlwm zoo los tiv thaiv xeb, tab sis kuj muaj cov txheej txheem zoo;
Ntxiv rau tsib hom saum toj no, muaj cov xim galvanized steel ntawv, luam ntawv coated galvanized steel ntawv, polyvinyl chloride laminated galvanized steel nplooj ntawv, thiab lwm yam. Tab sis tam sim no feem ntau siv yog tseem kub-dip galvanized ntawv.
Xim-coated phaj, tseem hu ua xim hlau phaj, xim phaj hauv kev lag luam.Xim coated steel phaj yog ua los ntawm txias-kuav los tiag steel phaj thiab galvanized steel phaj raws li lub substrate, tom qab nto pretreatment (degreasing, tu, tshuaj hloov dua siab tshiab kev kho mob), txheej nrog cov xim nyob rau hauv ib tug nruam txoj kev (roller txheej txheej), ci thiab txias rau hauv. cov khoom.
Coated steel phaj muaj lub teeb yuag, zoo nkauj tsos thiab zoo corrosion kuj, thiab tuaj yeem ua tiav ncaj qha.Nws muab ib yam tshiab ntawm cov khoom siv rau kev tsim kho kev lag luam, kev lag luam shipbuilding, tsheb tsim kev lag luam, kev lag luam rooj tog, thiab kev lag luam hluav taws xob.Ntoo, siv tau zoo, txuag hluav taws xob, tiv thaiv kev ua qias tuaj thiab lwm yam zoo.
Post lub sij hawm: Feb-28-2022