Research of charactristics of polymeric heat-shrinkable sleeves

Abstract

The results of testing of polymeric heat-shrinkable sleeves used for forming the fixed joints of pipe-lines are presented in the article. During the production sleeves of this type are exposed to radiation and orienting drawdown. It was determined the dependence of the performance characteristics of heat-shrinkable sleeves on the technological parameters of their production, in particular on the nature of the used polymer material and the exposure degree after molding. Quality assessment of the obtained sleeves was assessed by such indicators as the degree of crosslinking of the material in the product, the degree of parison swell of products after conducting the orientation (drawing), and the force and pressure of compression of pipe-shells by sleeves. The mode to obtain sleeves with an excellent set of operational characteristics is determined in the work.