离岸价格
获取最新报价|
- Minimum Order
国家:
China
型号:
-
离岸价格:
位置:
-
最小订单价格:
-
最小订单:
-
包装细节:
-
交货时间:
-
供应能力:
-
付款方式:
-
联系人 Mr. Chen
No.12 Huanghe Road, Changshu, Jiangsu
1 Process
description
1.1 productive
technology resume
This line
is designed as Sendzimir processing.
After cold
rolling strip steel surface was clean through electrolysis cleaning
and bake, enter into NOF for annealing and reduction, galvanized in
the zinc pot in the sealed atmosphere, blowed by air knife and
cooling, and obtain galvanizing steel coil. Under the process of
the skin pass mill, tension leveler, passivity/antifinger
treatment, oil coating, get finished galvanizing coil.
The main
process flow: loading coil—pay-off reel( 1# and 2# pay-off reel in
turn) — shear (1# and 2# shear in turn) — welding electrolytic
cleaning and drying annealing galvanizing/galvalume — air knife
blow -- air cooling water quenching — skin pass mill(reserved) —
tension leveler — passivity — electrostatic oiling (reserved)—
shear—coiling — unloading coil — packing.
1.2 Line
technical parameter
1) Raw
material
Un-annealing low
carbon cold rolled coil
Material:
CQ
Strength
of extension max.650MPa
Yield
strength max.450Mpa
Specification
thickness: 0.22-2.0mm
Width:
900-1250mm
Coil
weight 25t (max.)
Coil ID
Φ508mm,Φ610mm
Coil OD
Φ2100mm(max.), Φ900mm(min.)
The cold
rolled strip steel quality standard is in accordance with
GB709-2004, detail specification:
Single
coil weight ≤25t
Flatness <40
I
Camber <3mm/m
Coil inner
is required orderly, edge is flat, no burr, crack and crack
Cleanness of the strip steel surface:
Residual
rolling oil (double side) max. 500 mg / m2
Residual
carbon powder(double side) max. 50 mg / m2
Residual
ferrous power(double side) max. 250 mg / m2
Strip
temperature max.100ºC
2) Finished
product
Galvanized
and galvalume alloy steel coil
Variety of
coating: Zinc layer(GI), zinc aluminum layer (include
AL55%,GL, zinc pot
reserved)
Specification
thickness 0.22-2.0mm
Width
900-1250mm
Coil
weight 25t (max.)
Coil ID
Φ508mm
Coil OD
Φ1800mm (max.)
Product
performance grade CQ
Film
surface state common spangle
Surface
protection type chromating (oiling reservation)
Plating
layer weight GI 40-270 g/m2 (double side)
Product
standard GB 2518-2004(GI)
3) Production
outline
Strip steel composition | ||||||
C% | Si% | Mn% | Al% | P% | S% | |
CQ | ≤0.12 | ≤0.50 | ≤0.04 | ≤0.04 |
国家: | China |
型号: | - |
离岸价格: | 获取最新报价 |
位置: | - |
最小订单价格: | - |
最小订单: | - |
包装细节: | - |
交货时间: | - |
供应能力: | - |
付款方式: | - |
產品組 : | Turnkey Project For Building Materials |