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  • PE管常识
  • 本站编辑:杭州康美塑化有限公司发布日期:2018-01-04 08:06 浏览次数:
1、PE按树脂的密度可分为哪几类?
1, what are the categories of PE according to the density of the resin?
答:PE按树脂的密度可分为
Answer: PE according to the density of the resin can be divided into
低密度聚乙烯 LDPE (0.9~0.93g/cm3)由乙烯单体的均聚物组成;
The low density polyethylene LDPE (0.9 ~ 0.93g/cm3) is composed of the homopolymer of the ethylene monomer.
中密度聚乙烯 MDPE (0.93~0.94 g/cm3)由乙烯与α-烯烃共聚组成;
The MDPE MDPE (0.93 ~ 0.94 g/cm3) is composed of ethylene and alpha - olefin copolymerization.
高密度聚乙烯 HDPE (0.94~0.965 g/cm3)由乙烯与少量丙烯、丁烯、己烯单体共聚组成。
High density polyethylene HDPE (0.94 ~ 0.965 g/cm3) is composed of ethylene with a small amount of propylene, butene and hexene monomers.
2、 PE按长期静液压强度可分为哪几类?
2 PE, according to the long-term hydrostatic strength can be divided into several categories?
答:可分为PE32、PE40、PE63、PE80、PE100,在给水中使用比较多的是PE80 和PE100。
Answer: can be divided into PE32, PE40, PE63, PE80, PE100, the most used in water supply is PE80 and PE100.
3、 按强度分级是如何得来的?
3. How do you get it according to the intensity classification?
答:ISO9080中规定在20℃时的长期静液压强度实验中,确定材料的最小要求的静液压强度MRS,将其乘以10,可得材料的等级。MRS是指在20℃、50年时间的条件下,材料比较小要求静液压强度。
Answer: the ISO9080 specified in the long-term hydrostatic strength experiment in 20 degrees in determining the hydrostatic strength of MRS minimum material requirements, will be multiplied by 10, can get the material grade. MRS refers to 20 degrees in 50 years, under the condition of minimum hydrostatic strength of materials.
4、 PE63\ PE80\PE100区别在哪里?63,80,100分别指什么?建筑给排水上一般选用哪种规格?
4, where is the difference between PE63\ PE80\PE100 and what? What kind of specifications do 63,80100 use?
答:材料等级MRS(50年,20℃)MPa
Answer: material grade MRS (50 years, 20 C) MPa
PE100 10 MPa
PE100 10 MPa
PE80 8 MPa
PE80 8 MPa
PE63 6.3 MPa
PE63 6.3 MPa
所谓MRS是指连续施加在该聚乙烯树脂制管管壁上50年时引起管材破坏时所计算的在管壁上的环向张应力(经过圆整)。
The so-called MRS refers to the circumferential circular Zhang Yingli on the wall of the pipe when it is damaged continuously when it is applied to the pipe wall of the polyethylene resin pipe for 50 years.
PE63 本系列管材一般用于城镇及乡村给水工程;公称压力是指管材在20℃下输送水的最大允许工作压力。
PE63 this series of pipes are generally used in urban and rural water supply projects; nominal pressure refers to the maximum allowable working pressure for pipes conveying water at 20 degrees centigrade.
PE80 本系列管材主要用于城市给水工程;公称压力是指管材在20℃下输送水的最大允许工作压力。
PE80 this series of pipes are mainly used in urban water supply engineering; nominal pressure refers to the maximum allowable working pressure for pipes conveying water at 20 degrees C.
PE100 本系列管材特别适用大口径、高压力给水工程;公称压力是指管材在20℃下输送水的最大允许工作压力。
PE100 this series of pipes are especially suitable for large diameter and high pressure water supply engineering; nominal pressure refers to the maximum allowable working pressure for pipes conveying water at 20 C.
PE80 PE100燃气也可以用。
PE80 PE100 gas can also be used.

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