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济南铝卷为什么要冷却弯曲?

文章出处:www.yarucopi.com 责任编辑:admin 发表时间:2014-11-2 17:41:46

济南铝卷http://www.yarucopi.com/在我们的日常生活中是密不可分的,保温铝卷熔炼好的铝液在一定的铸造工艺条件下,优越的超耐候性,超耐腐蚀性及耐污染性,可承受极端的气候条件,不受紫外线和温差的影响,保温铝卷的形状也日趋多元化和复杂化,但是在保温铝卷正常出料在冷床上冷却时会呈现向空心部位或壁厚较厚的部位曲折的表象,那么,济南铝卷为什么要冷却弯曲?

1、压气雾喷嘴具有较强的方向性,气雾的夹角约为25°~30°,可以完成保温铝卷的部分冷却而不影响保温铝卷其它部位,保温铝卷在高压空气下将水雾化,添加了水和型材触摸的外表积,一起破坏了水和高温型材触摸时发生的蒸气膜,进步了换热效率。
Pressure aerosol nozzle having strong directivity angle of the mist is approximately 25 ° ~ 30 °, part of the cooling can be done without affecting the thermal insulation of the aluminum coil volume of other parts of the aluminum, the aluminum heat the air volume at a high pressure water mist technology, adding a touch of water and the appearance of the product profiles, together with the destruction of the vapor film occurs when a touch of water and temperature profiles, the progress of the heat transfer efficiency.
   
2、一般风冷条件下,保温铝卷各部位与空气触摸的换热系数均持平,但因为壁厚或形状不一样,各部位的散热速度不持平,所以,厚壁部或空心管的散热速度比薄壁部慢。
Under normal conditions of air-cooled, aluminum coil insulation and heat transfer coefficient of each part of the air touch are flat, but because of the wall thickness or shape is not the same,each part of the cooling rate is not flat, so that the cooling rate of the thick portion or hollow tube than thin portion slow.
   
3、选用部分高压气雾冷却时,因为一起存在空气和水两种换热介质,且水的换热系数比空气大,所以保温铝卷能进步散热速度。
Selection of high-pressure mist cooling part, because of the presence of air and water along with two heat transfer medium, and the heat transfer coefficient of water than air, it can improve the heat insulation aluminum roll speed.  

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此文关键字:济南铝卷
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