![]() For example we face warpage problem in Car interior view mirror housing, As a result mirror is not assembled properly. Sometime solution is depending on shape of the component. (Now shearing at nozzle and at gate point not changed the viscosity). This is you region of processing for injection speed, where the consistency in maintaining shot to shot. You get the region in curve where viscosity is constant w,r,t to Injection speed. Viscosity = Peak Injection pressure* fill time * Intensification factorġ1) Plot the graph Injection speed vs Viscosity. When injection velocity is full adjusting the material position that only 95% component is filled.ħ) Now make another shot and note the Fill time and peak pressure.Ĩ) Now lower the injection speed to 90%, 80% so on and note down peak pressure and fill time.ĩ) Find the screw intensification factor of screw (for electric machine it is 1:1, for hydraulics it is Area of ram/section area of screw) This means only injection no holding.ģ) Set the Injection pressure to maximum to available.Ĥ) Set the cooling time sufficient to ejection.ĥ Set injection speed slow, and make sure component should be short only 50% filled, if not adjust the material position.Ħ) Increase the injection speed in steps and sure that part should be still short. 1) Set the melt temperature in middle of range a described by manufacture.Ģ) Set all the holding phase parameter to zero. ![]()
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