在铝卷制作的过程中，为了帮助改变它的形状，我们是需要对它进行高温加热处理的，在高温的状态下它就会比较软，其形状也比较容易发生一些变化，在形状调整好之后，就可以将它的温度给降低下来，使其保持一定的硬度，但是有些情况，在高温冷却完成之后，铝卷会出现一些卷曲问题，这是什么原因呢？铝卷加工厂家下面为您讲解一番：
In order to help change the shape of aluminum coil, we need to heat it at high temperature. Under high temperature, it will be soft and its shape is easy to change. After the shape is adjusted, its temperature can be reduced to maintain a certain hardness. However, in some cases, after the completion of high temperature cooling, the aluminum coil will have some curling problems, What is the reason? The aluminum coil processing factory will explain to you:
冷却时会出现弯曲现象，原因为：
Bending will occur during cooling due to:
一般风冷的条件下，铝卷的各个部位与空气接触的换热系数均持平，但因为壁厚或形状不一样，各部位的散热速度不均衡，造成厚壁部或空心管的散热速度比薄壁部慢，终造成它在冷却时会出现向空心部位或壁厚较厚的部位曲折的现象。
Under the condition of general air cooling, the heat transfer coefficient of each part of the aluminum coil in contact with the air is the same, but because of the different wall thickness or shape, the heat transfer rate of each part is uneven, resulting in the heat transfer rate of the thick wall or hollow tube is slower than the thin wall part, and finally the phenomenon that it will turn to the hollow part or the thicker part when cooling.

弯曲原因及过程如下：
The causes and process of bending are as follows:
1、薄壁部分温度下降快，先产生收缩力，厚壁部分或空心管部分温度下降慢，几乎没有收缩力；
1. The temperature of the thin-walled part decreases rapidly, and the shrinkage force is generated first. The temperature of the thick-walled part or the hollow pipe part decreases slowly, and there is almost no shrinkage force;
2、薄壁部分截面积较小，产生的收缩力较小，或被牵引机牵引力消除；
2. The section area of the thin-walled part is small, and the shrinkage force generated is small, or it is eliminated by the traction force of the tractor;
3、离开牵引机，温度继续下降；
3. After leaving the tractor, the temperature continues to drop;
4、厚壁部分或空心管部分截面积较大，随着温度下降逐渐产生较大收缩力，薄壁部分温度已大幅下降，不再产生收缩力或收缩力较小；
4. The thick wall part or hollow pipe part has a large cross-sectional area, and gradually produces a large shrinkage force as the temperature decreases. The temperature of the thin wall part has decreased significantly, and no longer produces shrinkage force or the shrinkage force is small;
5、铝卷截面上受到的收缩力大小不均，沿挤压方向往厚壁部分或空心管部分弯曲。
5. The shrinkage force on the aluminum coil section is uneven, and it bends to the thick wall part or hollow pipe part along the extrusion direction.
以上就是关于铝卷在高温冷却后会出现卷曲问题的方法介绍，希望可以对大家有所帮助。当然您对铝卷等产品有所需求的话，可以随时来我们网站http://www.jndclyyxgs.com留言！
The above is an introduction to the method of crimping of aluminum coil after high temperature cooling. I hope it can help you. Of course, you can come to our website at any time if you have any demand for aluminum rolls and other products http://www.jndclyyxgs.com Leaving a message.