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中空缠绕管的拉伸性能的重要性!

作者: admin    来源:http://www.laobingguandao.com  时间:2020-05-15    人气:
  中空缠绕管:PE管的拉伸性能有什么作用,很多客户觉得PE管用来做给水管的时候,对于拉伸性能这一技术指标并不关注,那么这里简单说一下拉伸性能的重要性。
  Hollow wound pipe: what's the function of PE pipe's tensile property? Many customers think that when PE pipe is used as water supply pipe, they don't pay attention to the technical index of tensile property. Here's a brief introduction to the importance of tensile property.
  高分子聚合物具有所有已知材料中可变性范围更宽的力学性质,这是由于高聚物由长链分子组成,分子运动具有明显的松弛特性的缘故。
  Polymer has the widest range of mechanical properties of all known materials, which is due to the fact that polymer is composed of long chain molecules and the molecular motion has obvious relaxation characteristics.
  如高聚物材料具有相当高的伸长率,一般PE的断裂伸长率在90%~950%(其中线性低密度聚乙烯LLDPE的伸长率较高),通过特殊的制作工艺,部分材料的伸长率可在1000%之上,而普通高聚物材料的断裂伸长率也多在50%~100%之间。
  For example, the elongation at break of high polymer materials is quite high, generally the elongation at break of PE is 90% - 950% (in which the elongation of LLDPE is relatively high). Through special manufacturing process, the elongation of some materials can be over 1000%, while the elongation at break of ordinary high polymer materials is mostly between 50% - 100%.
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  通常对材料的拉伸性能要求较高的有热收缩膜以及拉伸膜等。
  Generally, there are high requirements for the tensile properties of materials, such as heat shrinkable film and tensile film.
  具体到我们实际的PE管材产品来说中空缠绕管,一般拉伸性能在200%以上就可以了,像做PE拖拉管使用的时候,这个数据比较理想,反过来说,拉伸性能过于好也不是好事,因为拉伸过长,相应的PE管的环钢度肯定就下降了,所以合理的产品技术数据才是更适合我们日常应用的。
  Specifically, for our actual PE pipe products, hollow wound pipes usually have a tensile property of more than 200%. For example, when they are used as PE drag pipes, this data is ideal. Conversely, it's not a good thing that the tensile property is too good. Because the tensile property is too long, the ring steel of corresponding PE pipes will definitely decline, so the reasonable product technical data is the most suitable for our day Often used.
  作为材料使用时要求高分子聚合物具有必要的力学性能。可以说,中空缠绕管对于高分子聚合物的大部分应用而言,力学性能比其他物理性能显得更为重要。
  When used as materials, polymer is required to have necessary mechanical properties. It can be said that for most applications of polymer, mechanical properties are more important than other physical properties.

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