2018 Las-Vegas : Preparation and studying of thermoplastic cross-linked polyethylene
Author(s) : Cheng Zhi, Mingyuan Hu, Kaige Duan, Chaoxi Zhou, Dongming Yu
The PE properties are obviously improved by crosslinking modified to TPEX, which can approach to that of PEX, while still remaining thermoplastic. It can be processed by the common forming method of thermoplastic; the products can be hot-melted and the scrap can be processed to be reused. The two-layer structure...
2016 Berlin : Underground engineering stress analysis of plastic inspection chambers
Author(s) : Zhang Wei, Wei Ruoqi, Zhou Minghong, Zhou Mingwei,
This article gives a brief introduction of plastic inspection chambers underground test, analyzes the stress borne by plastic inspection chambers from different angles combined with pressure sensors and strain gauges, sorts out some of the underground test data and analyzes the test data, and finally sums up the...
2014 Chicago : Essential Variables of Heat Fusion Joining of Polyethylene Pipe
Author(s) : Dr. Z. Jimmy Zhou, Jim Johnston
Heat fusion joining method has been widely used for thermoplastic piping materials such as polyethylene to form the “one-material” pipeline system. No additional 3rd party materials such as an adhesive are needed. The fusion procedures to ensure the quality of the joints could be different for different materials and...
2014 Chicago : Study on Structural Integrity of Plastic Inspection Chambers
Author(s) : Zhang Wei, Wei Ruoqi, Zhou Minghong, Zhou Mingwei, Lin Baoshu, Xiao Lingli
The plastic inspection chamber is one of the rapidly developing products in the field of drainage in China for the past few years. At present, plastic inspection chamber is mainly made of PP, PE, PVC and so on. The manufacturing technologies include injection molding, rotational molding, mechanical assembly and...
2012 Barcelona : Ligament Stress Regression of Notched PE100/PE4710 Pipe
Author(s) : Z. Jimmy Zhou
(Keywords : Polyethylene pipe, ligament stress, regression, notch depth, lifetime.)
Hydrostatic test was conducted on notched PE100/PE4710 black pipe specimens at
various temperatures and stresses. Hoop stresses were normalized to ligament
stresses by taking into consideration of the effect of wall thickness reduction...
2012 Barcelona : The application of plastic inspection chamber for drainage in China
Author(s) : Zhou Minhong
As the key component of underground piping network for drainage, plastic inspection
chambers have many major advantages and are also being applied more and more
widely instead of traditional brick-built ones. Users become familiar with this new
technique gradually. However there are two major problems which have...
2010 Vancouver : Comparison Between PE4710 (PE4710 PLUS) and PE100 (PE100+, PE 100 RC)
Author(s) : Dr. Gene Palermo
The scope of this paper is to clarify the various pipe material designation codes and other terms (PE 4710, PE 4710 PLUS, PE 100, PE 100 RC and PE 100+) that are used in the piping industry for high density polyethylene (HDPE) materials. These are the benchmark “high performance” HDPE materials used worldwide for a...
2008 Budapest : The next gas Fronteer
Author(s) : Zhou Minhong
The advanced bimodal PE4710 materials enable its applications in large diameter gas pipe to
replace cast iron and steel pipe. Among the three key field performances, the pressure rating is
independent of pipe diameters. However, the SCG and RCP properties are dependent of pipe
diameters. As pipe diameters increases,...
2006 Washington DC : Introducing PE100 for Medium Pressure Gas Networks in South America
Author(s) : Belforte, Gerard, Palermo, Guerra
South America is a region with a fast increase in economic growth and energy needs,
and natural gas represents a strategic energy source not only for producers like
Argentina but also for net importers like Uruguay and source-differentiated countries
The fast development of the economy leads to request of...
2006 Washington DC : Largest PE100 Project in North America
Author(s) : Chang, Zhou, Michie
MTD Pipeline LLC is a joint venture between Martin Marietta Magnesia Specialties LLC
and The Dow Chemical Company. A nearly 30 miles of high density polyethylene
(HDPE) pipeline project in northern Michigan is serving as the latest example of
technology evolution for polyethylene (PE) pipe used in underground pipe...
2006 Washington DC : Performance of Scratched HDPE Pressure Pipe
Author(s) : Zhou, Chang
High density polyethylene (HDPE) pressure pipe may be scratched during installation. The scratches reduce the wall thickness and therefore increase the dimension ratio (SDR pipe). 1” SDR 11 pipe samples extruded from bimodal PE100/PE4710 and unimodal PE80/PE3408 pipe materials were used to investigate the effect of...