Page 310 - Injection Molding Advanced Troubleshooting Guide
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304   31 Flow Lines



















































               Figure 31.2  Uneven flow progression resulting in a meld line that was called out as a flow line


               Computer flow analysis will help identify areas that will be prone to experiencing
               flow pattern issues. Running an analysis before a mold is built will help minimize
               the risk of fill pattern problems. If the mold has already been built flow leaders or
               flow restrictions may need to be added to compensate for the flow issues.



               31.3.3„ Flow Lines Troubleshooting Machine Issues

               Machine impacts on flow line defects include:

                  ƒ Velocity to pressure (V to P) transfer
                  ƒ Machine performance
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