Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.


Extrudate Cooling of Medium Density Polyethylene Pipe Sections [PE]

 

Plastic Pipes Conference Association # 1982 York

Edwards,Ellis, Georghiades,Smith

A model is presented for the prediction of cooling rates and temperature profiles during the cooling and solidification of M.D.P.E. pipes. Experimental measurements from an industrial production line are reported and these confirm the predictions of the model. Finally, the model is used to determine the most important process variables which influence the efficiency of cooling. 

Please note that the whole article content is available on PPCA website only :

Related papers

2021 Amsterdam : CHALLENGING THE 10% WALL THICKNESS RULE FOR HDPE MARINE PIPELINES

Author(s) : Ilija Radeljic, Ebbe Smith

HDPE pipe can be relatively easily scratched during the manipulation on the site, which is especially true for the marine pipelines. Installing the scratched marine pipe with the S bend method presents a risk and repair methods are usually performed. Currently, there is no standard defining the repair procedure, in...

2014 Chicago : Determining the Processing Quality of PVC Pipe by DSC – How Precise?

Author(s) : DALE B. EDWARDS, ANAND R. SHAH, DONALD E. DUVALL

Differential scanning calorimetry (DSC) has been used to study the processing of PVC pipes. This work has been largely embodied in ISO 18373-1-2007, Rigid PVC Pipes –differential scanning calorimetry (DSC) method – Part 1: Measurement of the processing temperature and Part 2: Measurement of the enthalpy of fusion for...

2004 Milan : Examining the Behaviour of an Interactive Pipe Liner Under Conditions that May Occur

Author(s) : Crunkhorn, Whiter, Mulheron, Smith

The water industry has used renovation techniques to extend the life of its assets for a number of years, beginning with sliplining in the 1970s. These techniques have evolved with time and the use of an interactive liner, where the liner withstands only some of the service loads, with the remainder borne by the host...

2004 Milan : Manufactured Aggregate as Imported Backfill Material for Plastics Pipes

Author(s) : Newport, Wijeyesekara, Edwards

Research work undertaken at the University of East London has produced new forms of sustainable manufactured aggregate, which gives a backfill material which has many advantages over natural materials. The unique geotechnical properties of the aggregate make it an idea material for the laying of plastic pipes allowing...

2001 Munich : An Alternate Method for Determining the Hydrostatic Design Basis for Plastic

Author(s) : Edwards, Broutman, Choi

The Alternate Methods Committee of the Plastics Pipe Institute’s Hydrostatic Stress Board (HSB) has completed development of an alternate method for determining the hydrostatic design basis (HDB) for plastic piping materials. The initial work was reported at Plastic Pipes X, in Sweden in 1998.1 An ASTM test method has...

2001 Munich : Cable Drawing Trough Deformed Plastic Ducts

Author(s) : Fairfield, Reid, Hounsome, Edwards, Sibbald

This paper provides estimates of the draw force needed to pull sub-ducts or cables through a series of typical ducted utility networks. Variables such as : coefficient of friction between the outside of the cable and inside of the duct, the main duct’s vertical diameter, the cable bundle or sub-duct’s external...

2001 Munich : Complex Yield Behaviour of PE100 Resin on Plane Strain Tensile Specimen

Author(s) : Choi, Lee, Broutman, Edwards, Palermo, Cho, Choi, Park

In recently designated plane strain grooved tensile (PSGT) methodology of ASTM F2018 standard, a groove in the direction perpendicular to the loading axis allows biaxial stress state to be generated under a uniaxial loading. The biaxial stress state produced very closely approximates the internally pressurized pipes...

2001 Munich : Examining the Performance of Semi-Structural Pipe Liners

Author(s) : Crunkhorn, Smith, Whiter, Mulheron

Cast iron pipes have been loaded to failure using a four point bending geometry under displacement-controlled loading. Specimens were tested with various liner configurations : unlined, epoxy resin lined or lined with one of two interactive (semi-structural) liners. Some of the pipes also had a circumferential notch...

1998 Gothenburg : An Alternate Method for Determining the Hydrostatic Design Basis for Plastic Piping Materials

Author(s) : Broutman, Edwards, Shah, Palermo

The Alternate Methods Committee of the Plastics Pipe Institute's Hydrostatic Stress Board (HSB) has initiated development of an alternate method for determining the hydrostatic design basis (HDB) for plastic piping materials. After reviewing several test methods, the plane-strain tensile method, developed by Choi and...

1998 Gothenburg : Plastics Pipes - Future in the Water Industry

Author(s) : Stokes, Edwards

The paper examines the business and regulatory background to the infrastructure investments anticipated in the next few years, from the point of view of a major UK Water Company. Past performance of the use of plastic pipes for sewers and water mains are examined. Shortcomings of the products are identified and...

1998 Gothenburg : Updating Retained Gastket Jointing Technology for PVC Pipes

Author(s) : Smith, Guzowski

Some forty years ago simple 0 ring joints for PVCu pipes were just being introduced as an alternative to solvent cemented joints. Rubber lip seal type of joints soon followed for both pressure and non pressure applications. Whilst in theory these designs were fine, both styles of joint had operational problems,...

1992 Eindhoven : Antioxidant loss in Hot-Water Polyolefin Pipes - Experimental Data and Modelling

Author(s) : Gedde, Smith, Ifwarson, Viebke

Polyolefin pipes subjected to extensive hoop stresses fail in a ductile manner (stage I). At lower stresses failure is brittle and may in certain cases be preceded by degradation of the polymer (stage 111). Reviewed in this paper are the changes in polymer structure and antioxidant concentration profiles preceding the...

1972 Southampton : Case study 1 Plastics underground drainage and access systems, Margam, South Wales

Author(s) : Smith

My task in this paper is to convey my experience in the use of uPVC in soil drainage schemes at Port Talbot. I began incorporating plastics drains in building projects in 1966, and owing to experience gained I have continued to specify its use in schemes under my control since that date. One might ask me why I began...

1970 Southampton : Some Case Histories on the Use of Plastics Pipes

Author(s) : Ellis

in opening the paper I think I should first explain that I propose :ca deviate a little from the precise subject described in the title. When the !itle wzs agreea with the Organising Secretary, ! was under the impression that my company organisation was a good deal better than it now appears to be and, to my cost, !...

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE
TOP