Kub-dip galvanizing, tseem hu ua kub-dip galvanizing, yog siv dav siv los tiv thaiv corrosion txheej txheej hlau. Cov ntawv hlau thiab cov coils tsim los ntawm cov txheej txheem kub-dip galvanizing feem ntau suav nrog cov ntshiab kub-dip zinc (GI) thiab kub-dip galvanized (GA) ferroalloys. Thaum cov hlau cua los ntawm lub lauj kaub zinc, qhov saum npoo coated nrog cov kua zinc, zinc txheej crystallized nyob rau hauv lub ntuj solidification txheej txheem, uas yog, lub thiaj li hu ua zinc spangles, yog ib hom ntawm topography ntawm kub-dip.galvanized steel ntawvthiab coil.
Qhov luaj li cas, luster, thiab cov tsos ntawm zinc spangles nyob ntawm ntau yam, tab sis lawv feem ntau cuam tshuam nrog cov txheej txheem zinc txheej thiab cov txheej txheem txias. Txhawm rau tsim cov zinc spangles ua tau raws li qhov yuav tsum tau ua, nws yog ib qho tsim nyog los txo qhov kub ntawm cov zinc tov.
kub-dip galvanized steel ntawv
Tsis muaj sequins
Cov sequins tsis tuaj yeem pom ntawm daim ntawv hlau nrog qhov muag liab qab, tseem hu ua zinc-dawb txheej, uas yog tsim los ntawm kev tswj cov tshuaj muaj pes tsawg leeg ntawm zinc liquefaction. Zinc-free steel khoom tuaj yeem tsim los ntawm kev ntxiv cov txhuas hauv zinc tov, tsis muaj cov hmoov txhuas, antimony, thiab tin. Cov txheej txheem yog dav siv thoob ntiaj teb vim nws tso cai rau cov chaw sib xws kom ua tiav yam tsis muaj khoom siv ntxiv. Nws muaj superior corrosion kuj thiab zoo txheej txheej, haum rau ntau lub hom phiaj ntawm kev lag luam niaj hnub, nws yog lub hauv paus zoo tagnrho ntawm cov xim coated ntawv.
Ib txwm spangle
Ib txwm sequins yog cov uas muaj txoj kab uas hla ntawm ntau tshaj 3 hli uas tuaj yeem paub qhov txawv ntawm qhov muag liab qab, tseem hu ua sequins loj lossis ntuj spangles. Qhov loj tshaj plaws thoob ntiaj teb lees paub yog 8 ~ 12mm.
Minimized spangle
Minimized spangles yog spangle nrog txoj kab uas hla ntawm 1 ~ 2 hli. Tom qab cov ntawv kub kub galvanized los ntawm lub lauj kaub zinc, tshuaj tsuag dej pos huab lossis zinc hmoov kom tsis muaj kev sib koom ua ke ntawm zinc txheej, cov tee dej los yog zinc hmoov yuav tsim ib lub chaw crystallization, uas yuav nce thiab txo qhov chaw ntawm zinc chav tsev. daim ntawv rau qhov muag liab qab tuaj yeem paub qhov txawv me me spangle. Txawm li cas los xij, cov txheej txheem no feem ntau ua rau cov zinc tsis sib xws thiab cov nqi tsim khoom siab, yog li nws tsis tau siv dav tam sim no.
Cov qauv thoob ntiaj teb tam sim no kuj txhais zine sequins txawv. Lawv txawv tsuas yog qhov loj ntawm lub paj thiab morphology ntawm cov muaju.
Muaj ob hom EN (EN 10346 DX51D + Z):
1. Ib txwm spangles (N): nws tsis tsim nyog los tswj cov txheej txheem solidification ntawm zinc txheej, thiab ntau qhov ntau thiab tsawg ntawm zinc paj lossis tsis muaj paj;
2. Minimized sequins (M): Nws yog ib qho tsim nyog los tswj cov txheej txheem solidification ntawm zinc txheej kom tau ib lub paj me me zinc (feem ntau pom tsis pom ntawm qhov muag liab qab).
Kev faib tawm ntawm Nyij Pooj yog ze rau cov qauv European. Muaj ob hom JIS (JIS G3302 SGCC)
1. Ib txwm spangles (R): zinc flakes tsim thaum lub sij hawm crystallization thiab solidification ntawm zinc plating.
2. Me Sequins (Z): Txwv tsis pub tsim cov zinc sequins ib txwm muaj me me.
ASTM zinc spangles tuaj yeem muab faib ua peb pawg (ASTM A653 Cov Khoom Siv Hluav Taws Xob):
1. Ib txwm spangles (N): Nws tsis yog tsim nyog los tswj cov txheej txheem solidification ntawm zinc txheej, thiab ntau qhov ntau thiab tsawg ntawm zinc flakes tuaj yeem tsim tawm thaum lub sij hawm ntuj solidification txheej txheem;
2. Minimized spangles (M): Nws yog ib qho tsim nyog los tswj cov txheej txheem solidification ntawm zinc txheej kom tau ib qho zoo sib xws thiab me me zinc paj tseem pom ntawm qhov muag liab qab;
3. Zinc-dawb spangles (F): me me zinc-dawb paj, pom tsis tau ntawm qhov muag liab qab, tuaj yeem tau los ntawm kev tswj hwm.
Qhov ntsuas GB / T 2518 zoo ib yam li ASTM tus qauv.