贵定县二辊轧机 Two-high mill
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1、二辊轧机用途
二辊轧机设备为低碳钢、铜银铅铝、有色金属板材、合金粉末冷轧带材实验设备。
2、二辊轧机的工作原理
二辊轧机分为可逆式和不可逆式，现在一般都是采用可逆式。二辊轧机主要是通过两个旋转的轧辊将轧件咬入轧机，实现来料尺寸的变化完成轧钢的。轧制板材时轧辊工作面是平面，通过压下装置调节辊缝大小来实现板材厚度的变化。轧制线材是轧辊上刻有孔型，来料在孔型内完成断面形状及尺寸的变化，同时也可以通过压下装置调节辊缝来实现断面尺寸的变化。
3、二辊轧机主要功能
该设备为低碳钢、有色金属板材冷轧实验设备。具有先进的轧制工艺参数计算机采集装置，可进行轧制过程的压力、转矩、电机功率、转速等参数的测量。因此、在该设备上可进行材料轧制工艺的研究和冷轧件的开发。
4、二辊轧机组成及结构特点
本机由主电机、减速器、人字齿轮座、万向接轴、工作机座、电控柜等组成，辊系采用专用轧机轴承，轧辊材质为 9Cr2Mo 。
5、二辊轧机主要技术参数
|
型号/mm |
轧辊尺寸mm |
坯料尺寸mm |
成品尺寸mm |
轧制力 KN |
轧制速度m/s |
电机功率KW |
|||
|
辊长 |
辊径 |
厚 |
宽 |
厚 |
宽 |
||||
|
Φ170×300 |
300 |
170 |
2 |
200 |
0.17 |
|
450 |
0.2-0.4 |
24.5 |
|
Φ250×300 |
300 |
200 |
10 |
200 |
0.5 |
|
1000 |
0.3 |
55 |
|
Φ250×300 |
250-300 |
180-200 |
6 |
200-260 |
1.2 |
|
1000 |
0.3 |
75 |
|
Φ310×400 |
400 |
300-310 |
0.45 |
140-300 |
0.12-0.15 |
140-300 |
1176 |
0.99 |
90 |
|
Φ350×350 |
350 |
350 |
12 |
240 |
1 |
|
1250 |
0.49 |
115 |
|
Φ420×350 |
850 |
420 |
30 |
250 |
1 |
|
1800 |
0.45 |
185 |
|
Φ485×850 |
850 |
455-475 |
30 |
330-560 |
0.45 |
|
|
0.88 |
280 |
|
Φ500×1200 |
1200 |
500 |
10 |
1050 |
0.5 |
|
2500 |
0.63 |
130 |
|
Φ500×1350 |
1350 |
490-510 |
20 |
1100 |
0.8 |
1100 |
4000 |
0.89 |
210 |
1. Use of two high rolling mill
Two high mill equipment for low carbon steel, copper silver lead aluminum, non-ferrous metal plate, alloy powder cold rolling strip experimental equipment.
2. Working principle of two-high rolling mill
Two high mill is divided into reversible type and irreversible type, now generally use reversible type. Two high rolling mill is mainly through two rotating rolls to bite the rolling pieces into the mill to realize the change of incoming material size to complete the rolling. The rolling face is a flat surface, and the thickness of the plate can be changed by adjusting the size of the roll gap through the pressing device. Rolling wire is a roll engraved with a pass, the incoming material in the pass to complete the change of the shape and size of the section, but also can be adjusted by the roller seam to achieve the change of the section size.
3. Main functions of two high rolling mill
The equipment is cold rolling experimental equipment of low carbon steel and non-ferrous metal sheet. With advanced rolling process parameters computer acquisition device, can be used to measure the rolling process pressure, torque, motor power, speed and other parameters. Therefore, the research of material rolling process and the development of cold rolled parts can be carried out on this equipment.
4. Composition and structure characteristics of two-high rolling mill
This machine is composed of main motor, reducer, miter gear holder, universal coupling shaft, working stand, electric control cabinet, etc. Roll system adopts special rolling mill bearing, roll material is 9Cr2Mo.
5. Main technical parameters of two-high mill
| Model /mm | Roll size mm | Billet size mm | Finished size mm | Rolling force KN |
Rolling speed m/s |
Motor power KW | |||
| Roll length | Roll diameter | thick | wide | thick | wide | ||||
| Φ170×300 | 300 | 170 | 2 | 200 | 0.17 | 450 | 0.2-0.4 | 24.5 | |
| Φ250×300 | 300 | 200 | 10 | 200 | 0.5 | 1000 | 0.3 | 55 | |
| Φ250×300 | 250-300 | 180-200 | 6 | 200-260 | 1.2 | 0.3 | 75 | ||
| Φ310×400 | 400 | 300-310 | 0.45 | 140-300 | 0.12-0.15 | 140-300 | 1176 | 0.99 | 90 |
| Φ350×350 | 350 | 350 | 12 | 240 | 1 | 1250 | 0.49 | 115 | |
| Φ420×350 | 850 | 420 | 30 | 250 | 1 | 1800 | 0.45 | 185 | |
| Φ485×850 | 850 | 455-475 | 30 | 330-560 | 0.45 | 0.88 | 280 | ||
| Φ500×1200 | 1200 | 500 | 10 | 1050 | 0.5 | 2500 | 0.63 | 130 | |
| Φ500×1350 | 1350 | 490-510 | 20 | 1100 | 0.8 | 1100 | 4000 | 0.89 | 210 |
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