500MM四辊不可逆轧机技术规格书

Technology Proposal

of

500mm 4Hi Non-reversing cold rolling mill 500mm 4辊不可逆冷轧机组

25th Dec, 2008

1.0. Summary

概述

500MM four roller irreversible cold rolling mill is used to roll hot rolled coils,which are ordinary carbon steel as material and 2mm as thickness, into cold rolled coils which are 1.5mm thick and have required surface hardness

500MM 四辊不可逆轧机组是在常温状态下，将材质为普通碳钢，厚为2MM热轧带卷，轧制成厚为1.5MM 并具有所需光洁度的冷轧带卷

2.0. Material specification

材料规格

Material: hot rolled coilds

材料: 低碳钢

Delegate steel No.: Q235B Q355B

代表钢号

2.1. Input material size

来料的尺寸

Width: 300mm - 400 mm

宽度

Thickness: 2.0 mm

厚度

Outer diamete r of steel coil: MaxΦ2000

钢卷外径

Inner diameter of steel coil: Φ610mm

钢卷内径

Max. coil weight: 8t

最大卷重

2.2. Finished product size

成品的尺寸

Width: 300mm - 400 mm

宽度

Thickness: 1.5mm

厚度

Outer d iameter of steel coil: MaxΦ2000mm

钢卷外径

Inner diameter of steel coil: Φ480mm- Φ510mm

钢卷内径

Max. coil weight: 8MT

最大卷重

Annual production capacity: 70,000 MT

年产量

3.0 Specification of Rolling mill

轧机规格参数

⏹Rolling speed：0 - 150m/min

轧制速度

⏹Threading speed：20m/min

穿带速度

⏹Max. rolling force：3000kN

最大轧制力

⏹Max. rolling moment：18KN.M

最大轧制力矩

⏹Max. gap of the work roll：20mm

工作辊最大开口度

⏹Dimension of the work roll：ф200×500 mm;

工作辊尺寸

⏹Dimension of back-up roll：ф500×450 mm;

支撑辊尺寸

⏹Column of the housing (cast steel)：250 x 300 mm2

机架牌坊的立柱（铸钢）

⏹Main motor power：350kw

主电机功率

⏹Motor power of tension reel：120kw

卷取机电机功率

⏹Max. Coiling speed：160m/min

最大卷取速度

⏹Coiling tension：50kN

卷取张力

⏹Coil drum diameter of tension reel: ф485 -ф510mm

卷取机卷筒直径

⏹Motor power of payoff reel：60kw

开卷机电机功率

⏹Max. payoff speed：100m/min

最大开卷速度

⏹Payoff tension：20kN

开卷张力

⏹Coil drum diameter of payoff reel:ф610mm

⏹开卷机卷筒直径：ф585 –ф625mm

⏹Auxiliary hydraulic system pressure：12MPa

辅助液压系统压力

⏹Elevation of pass line ：+1000MM

轧制线标高：+1000MM

4.0 Main features of the mill

设备主要特点

4.1. Motor screw down, Main drives with DC motors

电动压下，主传动用DC电机

4.2. Adopt SIEMENS PLC of S7-300 for automation and PROFIBUSS network communication.

机组采用西门子S7-400 PLC自动控制，并采用现场总线网络系统。

4.3. Main operation desk equipped with human-machine interface, showing dynamic menu, for

rolling parameters set- up, trouble alarm and printing report.

主操作台设有人--机界面，完成画面显示，轧制参数设定，故障报警和打印报表。

4.4. All DC motors adopt digital 4Q DC to drive 6RA70.

所有直流电机采用数字四象限直流驱动6RA70

4.5. With Strip break protection, trouble alarm and tension reel clamp positioning function.

断带保护、事故报警、卷取机钳口位置准停.

4.6 Automatic loading and unloading of coils

自动上，下钢卷自动化

4.7. Pass line set-up with tilted wedge adjustment automatically.

轧制线自动调零

4.8. Work rolls and backup rolls quick exchange

工作辊，支承辊快速换辊

4.9. Driving motors adop t the “Z” series which has the larger overloading capacity.

传动电机用“Z”系列具有较大的过载能力

4.10. Grease lubrication for both working rolls and back-up rolls.

工作辊，支撑辊均采用干油润滑

4.11 Center control for the pay-off reel.

开卷机对中控制（CPC）

4.12 Edge control of the tension reel

卷取机齐边控制（EPC）

4.13. Adopting γ-ray (or X-ray as option) gauge meter.

采用γ线(或X线作为可选方案)测厚仪

5.00. Equipment Composition and Function

机组组成及各单机的功能：