Welded flange knowledge

The welded flange applicable to large fluctuations in the pressure or temperature pipeline or high temperature, high pressure and low temperature piping, pipelines used to transport expensive, flammable, explosive media. Welded flange is not easy to deformation, good sealing, widely used, PN 16MPa. Docking size of the flange with nominal pressure, resulting in diameter flange is often unable docking, ordering, manufacturing, transportation, storage, installation, repair, maintenance and other practical work is very troublesome, 0.25,0.6 MPa flange 1.0 MPa butt size, thickness still use the original three sizes, in order to achieve the simplicity of the docking size.hydraulic hose and fittings
The use of contact theory and finite element method, bolt connection flange structure contact. The finite element model of the coupling structure of the disc, disc coupling contact contact conditions and stiffness amended standards. Take full account of the structural stiffness of the connecting bolt preload reasonably converted to equivalent nodal load at the beginning of treatment, and deduced docking flange surface air tightness requirements solving optimal preload formula. When performing a theoretical calculation, while also designed to test its verified. Finally, the development of a program system for finite element analysis of disc couplings. Methods of analysis and resulting conclusions and the development of software engineering significance.hydraulic hose assembly