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  • Users: chinmoy123
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  1. chinmoy123

    Pressure requirement for injection molding

    I have a reactangular cavity that needs to be filled with glass polypropylene mixin an injection molding process. IS there any formula which will tell me how mucg pressure is required for the cavity to be filled with the mix?
  2. chinmoy123

    Conductivity of Carbon +Polypropylene mix

    I have done extensive structural calculation for composites but recently ran into a thermal one. The composite is a Carbon Prolypropylene mix with fiber volm of 50%. How do I calculate the conductivity and Specific heat of the compsite? Is it OK if I take the average of Carbon and PolyP? IS...
  3. chinmoy123

    Transient 1-D heat transfer

    Its almost 6 years since I have dealt with transient HT. So bear with me if the question is frivolous. I have a 1-D sample with both sides being held at say 150C. I want to find out the time taken for the mid plane to reach a temp (say 100 C) How do I solve the follwoing transient 1-D HT...
  4. chinmoy123

    Heat transfer co-efficient of air

    All I have been using a heat transfer co-efficient h = 5 W/m^2 K for free convections from a flat surface. Does anyone have a graph or literature which gives the h values of air relative to air velocity and temperature for a flat surface? Thanks in advance Chinmoy

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