Allan, Hashemi, Faulkner, Bevis
# 1998 Gothenburg
A novel moulding process has been developed at the Wolfson Centre for Materials Processing, Bmnel University, for the production of curvilinear forms of thermoplastic materials. The process has been used with a gas pipe grade of medium density polyethylene to manufacture right-angled elbows of 63mm diameter SDR 11 pipes. These elbows have been mechanically tested and compared with commercially produced straight sections of pipe which were made from the same polyethylene resin as the elbows.
Author(s) : Ali Ahmadnia, Peter Allan, Rob Withnall, and Jack Silver
The acoustic properties of polypropylene, polyethylene and PVC which are widely used in the automotive, construction and pipe industries were measured. The acoustical parameter selected for this study is ‘sound transmission loss’. Acoustic tests were conducted using a Bruel & Kjaer acoustic tube with four microphones...
Author(s) : Bevis
Europe has accepted that resources should be recycled to avoid waste and is incorporated in European Community stragegy for waste management : - The prevention and reduction of waste arisings at source.- The increased use of recycling and re-use of materials wherever possible.- The safe disposal of unavoidable...
Author(s) : Barker, Bowman, Bevis
The influence of the incorporation of injection moulded fittings and the presence of mirror plate butt welded joints on the performance of polyethylene pipe systems has been assessed. Systems have been tested at 79.5OC under, predominantly, internal fatigue pressure loading. Both fittings and butt welded joints have...
Author(s) : Allan, Bevis, Chuah, Ma