FAQ_Presiton Machinery SDN.BHD.

Runner Common Problems and Solutions

   A: drooling Causes
1. Manifold cavity plate above the manifold gasket 2. few pieces of heated nozzles not in the same plane 3. The center gasket, center pin, anti-rotation pin height error 4. manifold 5. Manifold plastic drain plug main nozzle leakage glue
6. The sealed plastic surface modification process is not in place 7. 8. template manifold deformation

   II: temperature instability Causes of poor quality thermostat 1. 2. 3. cable connections for loose contact with the hot runner and mold too much, serious heat loss
4. thermocouple be crushed

   Three: 1. The reasons for the inconsistency temperature thermostat and thermocouple hot runner inconsistent indexing number of the actual temperature and the thermostat display, ie "J" "K" does not match the 2 thermostat is transferred into 3 degrees Fahrenheit. two sets of interchangeable thermocouple cross, leading to failure of temperature 4.
5. The thermocouple wire is crushed out another fault thermostat

   Four: Causes of poor valve needle movement
1. The lack of air pressure, air and road barrier sealing system is bad cylinder 2. killed: cylinders, manifold and nozzle different heart, tainted feed too much heat accumulation between the code templates and 3. valve needle guide sleeve , wrap the cold feed valve needle 4. the sealant is not in place, if otherwise normal, consider the valve needle back chute 5. check injection signal is connected correctly

Five: cold glue at the gate too fast causes 1. Cooling water too much, too fast runner heat loss 2. 3. Thermal nozzle temperature is too low

4. Thermal Nozzle Selection incorrect

   Six: misfire gum reason
1. The gate was blocked by impurities 2. Temperature too much heat loss 3. 4. thermostat display temperature and the actual temperature does not match

   Seven: Color Change slow perform the following operations
1. The mold temperature increase of 15 degrees, the nozzle and manifold increase of 50 degrees with a cleaning material to clean the barrel 2. 3. Use a colorless standard required for the next production cycle of production of raw materials 10 4. Lower the nozzle and manifold temperature 20 degrees, the fourth after three injections 5. repeat procedure twice, and then reduce the mold temperature, the color change is complete