Kub Dipped Galvanized Steel Sheets hauv Coils
Galvanized ntawv, nyias hlau phaj rau hauv lub molten zinc tank los tsim ib txheej nyias ntawm zinc ntawm nws qhov chaw. Nws yog tsim los ntawm cov txheej txheem txuas ntxiv galvanizing, uas yog, cov nplooj ntawv steel dov tau txuas ntxiv rau hauv zinc-plated tank ntim nrog zinc molten los ua cov ntawv hlau galvanized; alloyed galvanized steel ntawv. Cov ntawv hlau no kuj yog tsim los ntawm cov txheej txheem kub -dip, tab sis tom qab tso tawm ntawm lub tank, nws yog tam sim ntawd rhuab mus rau ib ncig ntawm 500ºC los ua ib tug alloy zaj duab xis ntawm zinc thiab hlau. Cov ntawv galvanized no muaj qhov zoo adhesion rau coatings thiab weldability.
Cov yam ntxwv ntawm zinc paj kauj thiab du galvanized kauj:
smooth galvanized kauj:
Qhov saum npoo yog du yam tsis muaj kev ntxhib los mos, thiab zinc txheej yog uniform. Nws feem ntau siv cov txheej txheem "tsis muaj zinc paj" (xws li kev ua kom txias sai hauv qhov kub tsis tu ncua -dip galvanizing kab).
- Zinc txheej thickness ntau yog dav (feem ntau 40-275g / m², raws li tus qauv GB / T 2518-2019), nrog kev ruaj khov corrosion.
zinc paj coil:
Qhov saum npoo nthuav tawm pom cov qauv crystalline (zinc paj) tsim los ntawm kev txias txias tom qab galvanization (xws li "natural crystallization tom qab galvanization" txheej txheem).
- Qhov loj ntawm zinc paj yog cais (loj zinc paj, me me zinc paj), nrog rau kev zoo nkauj zoo nkauj, tab sis zinc txheej thickness feem ntau yog me ntsis thinner (60-180g / m²).
- Khoom Specifications
| Khoom npe | galvanized steel kauj |
| Loj | 2.0*1250*C, 1.5*1250*C, 0.8*1250*C, 1.0*1250*C, 1.2*1250*C, 1.0*1000*C, 1.2*1000*C, 1.5*1000*C, 0.8*1000*C, 0.7*1000*C, 0.7*1250*C, 0.9*1250*C, 2.0*1000*C, 0.6*1250*C, 0.9*1000*C |
| Thickness | 0.12 ~ 6.0 hli |
| Qib | DX51D, DX52D, DX53D, DX54D, S220GD, S250GD, S280GD, S320GD, S350GD, S400GD, S450GD, S500GD |
| Txuj | JIS G3302-94; GB/T 12754-2019; ASTM-A653; JIS G3302; EN10147; thiab lwm yam |
| Hardness | Mos hard (60), nruab nrab hard (HRB60-85), tag nrho nyuaj (HRB85-95) |
| Nto qauv | Tsis tu ncua spangle, Yam tsawg kawg nkaus spangle, xoom spangle, loj spangle |
| Kev kho saum npoo | Chromated/Non-Chromated, Oiled/Non- oiled, Daim tawv nqaij dhau |
| Khoom siv | Kub-rolled strip steel: SPHC, SPHD, SPHE, STW |
| me ntsis steel: DX51D + Z, DX52D + Z | |
| Kev tsim kho steel: S250GD + Z, S350GD + Z, S450GD + Z, S550GD + Z | |
| Kub-dip galvanized ntawv: Q235B,08AL,Q390D | |
| Zinc- hlau alloy kub-dip galvanized ntawv: DC04 | |
| Kev Pabcuam | Coarse processing (xws li kev npaj, dov, thiab lwm yam) |
| Daim ntawv thov | Kev siv tsheb, hnub ci zog, cov khoom siv hlau, cov khoom siv hauv tsev, cov thawv ntim khoom, kev tsim cov tshuab, cov khoom siv huv huv, cov hlab ntsha siab, txhua hnub -siv cov khoom siv hluav taws xob, cov yeeb nkab tsim khoom thiab lwm yam. |
| Qhov zoo | npaj cov khoom lag luam, lub sijhawm xa khoom sai; muaj nyob rau hauv txhua qhov ntau thiab tsawg, customized; siab zoo |
- Muaj Steel Qib
| Qib hlau | Txheej | Tawm tswv yim (MPA) | Tensile (MPA) | Elongation (%) |
| xwm 51d | Z, ZF | -- | 270-500 | 20 |
| xwm 52d | Z, ZF | 140-300 | 270-420 | 22 |
| xwm 53d | Z, ZF | 140-260 | 270-380 | 26 |
| xwm 54d | Z, ZF | 140-220 | 270-350 | 30 |
| S220 GD | Z, ZF | 220 | 300 | 18 |
| S250 GD | Z, ZF | 250 | 330 | 17 |
| S280 GD | Z, ZF | 280 | 360 | 16 |
| S320 GD | Z, ZF | 320 | 390 | 15 |
| S350 GD | Z, ZF | 350 | 420 | 14 |
| S400 GD | Z, ZF | 400 | 470 | -- |
| S450 GD | Z, ZF | 450 | 530 | -- |
| S500 GD | Z, ZF | 500 | 560 | -- |