Plastic film purges pipe welding problems

Article Abstract:

Water-soluble plastic film can be used as a seal in pipes to allow effective purging prior to welding and it can then be washed away after use. The process has many possible applications in situations where access will be limited after an operation has been performed. It is particularly applicable to welding operations where ineffective purging of oxygen from some metal pipes often affects the quality of the weld due to chemical reactions, coking and uneven penetration.

Usage, Plastic films, Welding, Pipe, Pipes

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Cool gas and plasma assist plastic processing

Article Abstract:

A description is presented concerning the advances which have been made at the University of Warwick into the processing of plastics. The development of an innovative technique for gas-assisted injection moulding is discussed.

Production management, Innovations, Plastics, Materials science, Injection molding, Warwick, University of

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