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New Procedures for the In Situ Repair of Surface Defects in Plastic Gas Distribution Pipes [PE]

 

# 1992 Eindhoven

In current practice. even relatively benign damage to plastic ipes can require the complete replacement of the damaged section. T is costly process can be performed more efficiently with a n in situ patch repair procedure that uses a newly synthesized repair material. This material has mechanical properties comparable to conventional PE, but with a higher melt flow index. The use of this material allows patches to be joined to unscraped pipe that will infiltrate sharp nicks and crevices, thus retarding the possibility of long-term failure by slow crack growth.

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