Simulation analysis method based pipe die polymer melt was analyzed using the method according to the processing rheology of the polymer knowledge , theoretical equation solving .
But in the solution process , you must electrofusion coupling mould remove some of the smaller factors that influence on the flow process some reasonable assumptions to simplify the solving process . Simplify the calculation conditions used are: ( 1 ) Melt is a power law fluid ; ( 2 ) steady laminar incompressible ; ( 3 ) full development flow ; ( 4 ) no-slip ; ( 5 ) does not consider gravitational and inertial forces .
First, to determine the geometric modeling parameters : Determine the basic data to simulate the experience of the tube plastic coupler fittings mould through the nose design method , the main parameters are: diversion angle 54 °, shunt length (L1) 80mm, compression angle 30 °, stent length (L2 ) 22mm, compression length (L3) 120mm, hole drilling stereotypes length (L4) 60mm, die inside diameter of 30.65mm, mandrel outer diameter 24.146mm, compression section inlet diameter (D2) 94.958mm, tapered end of the shunt diameter ( D1) 82.938mm. Due to the changing needs of the simulation model of safety chucks some geometric parameters , so you want to change the PE Electrofusion Pipe Fitting geometric parameters using parametric modeling method. Since the calculated amount of reasons, the analysis process , to select only a greater impact on the product parameters analyzed . Studies selected diversion angle , angle and shape compressed length as the analysis parameters. These parameters are related to the parameter of the model (due to shunt rounded inner and outer cone section and setting the value assumed to be constant , so that D1 and L1 determine the angle α and the shunt L1, L2, L3, L4, D1 and D2, D2 and L3 decision compression angle β).
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