Home » Troubleshooting » Stringing Issues Solutions

Stringing Issues Solutions

Regarding your stringing issue you can check these points:

Melt temperature too high:

=> Decrease melt temperature.
Decrease hot runner temperature.
Decrease screw rotation speed.
Decrease hot runner temperature (avoid nozzle

Gate area too hot:

=> Decrease mold temperature.
Check contact tightness between nozzle tip and
Check mating between nozzle tip and mold.
Check isolation cap thickness.
Use colder nozzle / cone point insert.

Temperature sensor position:

=> Sensor too far from heating, in a cold area.
Place the sensor closer to heating.
Temperature sensor function:
Correct sensor type (K, J)?
Correctly calibrated controller (K, J)?

As you are on open gate nozzles it is important to have a fine tuned decompression and if it isn't enough you should move the injection unit backward after screw metering and before the opening of the tool. This will avoid to have to much pressure inside the hot runner.

Post a Comment:

Plz Calculate (4 + 7) =
(Your comment will show after approved.)

You may also like:

Featured Articles
Plastic Injection Molding Process ... Plastic Injection Molding Process SimulationThe propositions behind injection molding process simulation are very basic. First, that although our plastic materials and ...
Visit injection molding factory in ... Visit injection molding factory in China before closing the dealNot being in the injection molding industry, I was looking for tips on how to judge a company or factory on their capability or ...
Injection Mold Cooling Design Injection Mold Cooling DesignThe design of the injection mold cooling system is very important. The cooling time takes up 70% to 80% of injection molding ...
Plastic injection molding hot runner ... Plastic injection molding hot runner systemHot runner is a set of temperature control heating-device, installed in the plastic injection mold, it is part of the mold. A Hot ...
How to choose plastic injection mold ... How to choose plastic injection mold steel?Hardness and wear resistance Surface roughness, dimensional accuracy of plastic parts and injection mold life heavily rely on the ...