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# 2008 Budapest
The plastic pipeline industry of China has been developing fast since 1980’s, as the result of the continual market demands from the construction, municipal engineering, agriculture, etc. China has become one of the major plastic pipe producing and application countries.
Author(s) : Lei Wang, Guozhi Xu, Qiaoping Qiu, Weihua Lu, Yanwang Han
PP-R (random copolymerized polypropylene) has been widely used in hot and cold water systems. However, the standard PP-R pipes have the disadvantages of a large high-temperature thermal expansion coefficient, an insufficient notched impact strength, and a low temperature and pressure resistance. In this paper, a new...
Author(s) : Zhanjie Wang, Yan Zhao, Melody Guo, Yanju Fan, Wei Tang
In the past ten years, China's plastic pipe industry has maintained a steady growth and made great progress in the upgrading of industrial structure, technological innovation, and improvement of quality levels. However, at the same time, in the face of the complex changes in the current economic situation, especially...
Author(s) : Wang Zhanjie
As the largest production country, with numerous applications, China’s plastic pipe industry is developing steadily to meet the demand and needs. This paper analyzes the current situation and barriers, and proposes the breakthroughs to achieve a sustainable, stable and healthy development of China’s plastic pipe...
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) : 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) : Jie Feng, Michael Petr, Jeff Wenzel, Mark Mirgon, Sam Crabtree, Alan Nakatani
Through tensile tests, simulated orientation, tribology, and finite element analysis, this study explored the effect of temperature, lubrication and applied hydraulic pressure in the PVC orientation process. It was demonstrated that tight control of these parameters is critical in a continuous PVC orientation process...
Author(s) : Alex Stolarz, Jian Wang
THE PE-RT TECHNOLOGY HAS EVOLVED SINCE IT HAS FIRST BEEN INVENTED 1982. AN ESTABLISHED TECHNOLOGY FOR HOT AND COLD SANITARY PIPES HAS POSITIONED ITSELF WELL WITHIN OTHER MATERIALS DUE TO THE EASY PROCESSING, HANDLING AND COST EFFICIENT PRODUCTION OF PIPES. RECENT TECHNOLOGY ALLOWS EVEN MORE FLEXIBLE RESINS TO BE...
Author(s) : Fu Zhimin, He Guoshan, Wang Wanjuan
Our research shows that in a torque rheometer test the greater the fusion degree of PVC-U is, the higher the minimum torque of the torque curve is, and the smaller the difference between the maximum torque and the minimum torque of the torque curve. According to the relationship, the method of evaluating the fusion...
Author(s) : ZhanJie Wang, Cindy Wang
With the offers of whole value chain people, the application of PE pressure pipes has been increased widely in China since 1990’s, especially for gas pipes. Compounding PE material ensures the qualified pipes being used for infrastructure projects. There are some Innovation products from pipe producers to enlarge the...
Author(s) : Tu Xiang-qun, Wang Chao, Cheng Zhong-lin, Dong Bo-bo
This paper is to verify the impact of different contents of nucleating agent and annealing processes on the content of β-crystal. By using four-parameter equation of PP-RCT with requirements in different application conditions, different temperature coefficients and Miner's rules the design stress of PP-RCT materials...
Author(s) : Tu Xiangqun, Wang Chao
Two kinds of comprehensions about the wall thickness of socket fusion fittings from GB/T 28799.3- 2012 have been analyzed in this paper. Socket wall thickness relative to the different value of pipe series of fusion fittings was calculated respectively, and two kinds of simplified calculation have been suggested. The...
Author(s) : Wang Liqun, Wu Gengtian, Qi Jun
In China demand is growing rapidly for large diameter plastic pipes due to urbanization and the need to protect the environment with improved storm-water management systems. Whilst plastic pipes are already used in China for underground sewage and drainage applications the properties and processing limitations of the...
Author(s) : Tang Guoqiang, Wang Wei
This paper briefly introduces the characteristics of steel wire reinforced thermoplastics (PE) composite pipe structure, domestic and foreign sea crossing pipeline laying method, methods and their advantages and disadvantages, welding installation of steel wire reinforced thermoplastics (PE) composite pipe laying...
Author(s) : Wang Zhanjie, Zhao Yan, Melody Guo
In recent years, the Chinese plastic pipe industry has maintained a high growth rate and in 2012 the production of plastic pipe in China amounted to over 11 million tons. This not only provides important benefits due to the outstanding performance of plastic pipe, such as corrosion resistance, smooth wall, easy...
Author(s) : Zhang SiLiang, Zhang ShuangQuan, Guo XiaoLing, Ren YunHong, Wang MingKe
This article describes the effect of additive, light and high temperature on PE-X pipe’s performance. By additive amount changes, will be have different influence to pipe’s brittleness resistance, bending strength, and aging resistance. As cross-linking agent’s content increasing, bending strength enhanced, but...
Author(s) : Wang Zhiwei
In recent years, considerable progress has been made in the quality of PE pipe materials and products. PE pipes have been widely used in the water and gas distribution market sectors. Also thanks to the excellent performance and chemical resistance of these high quality PE pipes they have been used in other markets,...
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) : SHENG Zhong-yi, ZHENG Hong-jie , MAO Ming-zhong, ZHU Wei, XIE Song-gui
Pipe fittings is mainly used to connect, control and support the pipe system in the pipeline system, and welding pipe fittings mainly connect with pipe by the way of the hot-melt welding. The new welding pipe fittings, include the new shape of the pipe fittings, the column indications in the pipe wall and the concave...
Author(s) : Wang Zhanjie
Since the late 1980’s the Chinese plastic pipe industry has maintained a high growth rate eventually becoming the largest producer of plastic pipe in the world. By 2010, the production of plastic pipe in China amounted to 8.4 million tons, with PVC, PE and PP pipe being the main products. Both the variety of pipe...
Author(s) : Wang Zhanjie
With diversity and wide applications, the PVC-U pipe production is ranked first in China among all the plastic pipes, although in recent years, its growth rate is the slower than polyolefin pipes. This paper introduces and reviews the PVC-U pipe application in China, describes recent technical development, such as raw...
PE100+ Association first Webinar:Benefits of PE100+ Materials and their Use in Trenchless TechnologyAlong with providing a brief introduction to the association, the webinar will focus on the benefits of using pre-compounded PE100 materials certified by the association and highlight some of the...
