Probable Cause
l There is too much impurities in the melt
l too much impurities in the runner
l runner or mould lip parts are scratch
l the runner chromium plating layer off.
Remedy
l To re-clean-up mould and connectors
l Due to equipment long-term operation, the melt or impurities will accumulate in the runner , affect the melt flow as well as product quality, runner should be cleaned up periodically, In normal operation we suggest clean up the runner every month thus prolonging the life of mould
l If can’t fix it by yourself, please contact the manufacturer
l After the long-term operation or use corrosive materials may cause chromium plating layer off