Plastic products generated wave and current patterns in the causes and elimination

One. have reasons for wave and current patterns
     A result of curing the resin starts to cool down into the mold cavity

     2 die temperature is too low

     II. Associated with knowledge:

     1 sprue, slip in the side of the cooling of the resin into the mold cavity half-cured state, immediate cure with exposure to mold, and then into the depth of the cavity formed by the wave and current status.

     2 because of the different products is also prone to the thickness of wave and current patterns.

     III. Solution

     A real-time: improve the barrel temperature, mold temperature increase.

     2 Short-term: to improve the mold finish.

     3 Long-term: to change the flow of material and good material.

     IV. According to the different materials

     1 difficult to form materials with good mobility pattern wave and current

     2, the formation of wave and current patterns of polystyrene reasons still not clear