Research of the Manufacturing Quality of Plastic Details with Complex Forms of Connection

Abstract

AbstractThis article examines the nature passing of the shrinking deformation of plastic thread elements depending on their size and manufacturing regimes. At the same time, within a wide range of regime parameters, achievable limits of quality indicators of details working in structures of equipment for exploration, drilling and operation in the oil and gas industry are investigated. Mathematical dependencies between quality indicators (shrinkage and strength) of details against pressing temperature are established. The scientific-practical methods for insurance of plastic details quality in oil field equipment based on the mathematical models of their production have been developed. These mathematical models reflect the regularity of influence of production regime and structure of the details on the quality indicators (durability in stretching, hardness, roughness of surface, density and shrinkage for the optimization of their production regimes). In this article the quality of thread details of the oil-field equipment depending on modes of production of their various constructions and composition of press materials were reviewed. By adjusting the operating parameters during production of details are defined quality indicators: tensile strength, hardness of details and others.KeywordsSmooth and threaded plastic partsShrinking deformationsPressing pressuresPressing temperatureRegime parametersSize errorQuality indicators