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Posters # 2012 Barcelona
This paper will discuss the application of some kinds of steel reinforced plastic pipes for sewerage engineering in China, and give some proposals for the development of the product. Keywords : The large diameter; steel reinforced plastic pipes; pipes for sewerage engineering; application
Author(s) : Baiqian Li, Jun Wang, Lixian Zheng, Xiaoyi Peng, Lei Wang, Yu Cui, Guozhi Xu
Polyethylene/Aluminum/Polyethylene (PAP) composite pipe has the advantages of corrosion resistance, limited joints and convenient installation. Nowadays PAP pipes are widely used in indoor gas conveyance. But a number of companies encounter difficulties in installing gas meter in users’ house as well as billing. Some...
Author(s) : Mingyuan Hu, Dongming Yu, Zhangcheng Chen, Cheng Zhi, Kaige Duan
Studying in barrier property of TLCP/PO alloy and EVOH/PO alloy. Filtrating formulas with extruding alloy into pipes. Trying to coat alloy on pipes and co-extrude into two-layer oxygen barrier plastic pipe. The traditional Ethylene vinyl alcohol copolymer (EVOH) barrier plastic pipe used in internal closed-loop...
Author(s) : Xiaoying Lu, Yujie Wang, Qiang Huang, Chunyan Xu, Guangyu Zhu, Aimin Xiang, Linmei Wu, Yanfang Wang
The determination method of metal elements for polyethylene pipes was reported in this paper, the difference in metal elements content between raw materials and recycled materials was analyzed. The results showed that raw and recycled materials in polyethylene pipes were effectively distinguished via metal element...
Author(s) : Chen Jianchun, Liu Luliang
3S (Strengthen Single System) cyclone single stack system is a new product for building drainage, which has the advantages of saving materials, large drainage quantity, low drainage noise, etc. In this system, the guide structure, swirl angle, volume structureand the height of spiral reinforcement are optimized...
Author(s) : Qu Yunchun, Sun Xuhui, Chen Guokang
The polyethylene resin whose relative molecular mass distribution shows bimodal (Bimodal PE) possesses not only favorable mechanical property, but also excellent processing property. Currently, Borstar Technology of Borealis Company—loop slurry reactor and gas fluidized bed reactor install in series, which is...
Author(s) : Dongming yu, Linan Chen
This article is the impact study on general plastic pipe performance when using Liquid Crystal Polymer (hereinafter LCP) and LCP alloy, the soaking extrusion in-situ composite technique and the coat-molding technique for plastic pipe extrusion. It turns out that the high barrier property of TLCP can help us...
Author(s) : Chen Zenggui
For PE pipes for water supply installed in the summer, the pipeline’s temperature under the sun exposure can influence the properties of the pipe. If you carry out the pressure tests directly, it can result in damage to the pipeline. So we conducted a detailed analysis and research on the influence of exposure to the...
Author(s) : Xu Yijiong, Liu lIangbing, Dongyu Fang, Cindy Wang, Jarmo Juhani Harjuntausta, Youssef Taha
Key words : Corrugated pipe, PP-HM, PE, sewage, drainage Whilst plastic pipes are already used in China for underground sewage and drainage applications the properties and processing limitations of the materials used are such that they are not able to fulfill all the requirements for large diameter or higher...
Author(s) : Mason, Chen
The small scale steady state (S4) test is a convenient and relatively inexpensive means of measuring the critical pressure (Pc) for rapid crack propagation in plastic pipes. The critical pressure measured in the S4 test is not the same as the critical pressure measured in a full scale test, which more directly...
Author(s) : James Mason, John Chen and Gregory O’Brien
This paper presents an overview of the first high pressure polyamide-11 (PA-11) natural gas plastic pipe field installations with operating pressures of 150 to 200 psi. We describe the layout and operating pressures, the local soil and environment conditions, as well as the installation methods employed to complete...
Author(s) : Jivraj, Sehanobish, Dun, Damen, Wu, Zhou, Chen, Shulkin, Chudnovsky
Analysis of polyethylene (PE) pipes ductile failure (ballooning) suggests that it is directly related to the delayed necking phenomena and time to ductile failure of PE pipe can be evaluated as the time to delayed necking. The necking in polyethylene (PE) is studied under displacement control (ramp test) and load...
Author(s) : Crawford, Xu, Spence
Currently plastic pipes and fittings are manufactured by extrusion or injection moulding. However, in certain circumstances there are considerable advantages to be gained by using rotational moulding for these types of products. In particular, rotationally moulded products are stress-free, can have greater than...
Author(s) : Mason, Chen, Dang
