17. The phenomenon of spray missing
17.1 Formation: Forms not filled
17.2 Cause
melt temperature, mold temperature and injection speed too low.
Plastics are not fully flexible.
Pressure spray inappropriate. Cargo Road too large screw
the exhaust system does not match.
Flow Plastic inappropriate.
The thickness products too small or too long.
The shape stalk inappropriate spray.
17.3 Remedy
Increased temperature or heat flow the mold with the mold speed.
Increase spray volume and test one-way valve system (injection volume is too small, no buffer). Increasing back pressure
consistent settings between injection pressure and injection volume.
Improved exhaust valve system, reducing mold clamping force.
Changing the plastic flow accordingly
Edit mold to suit the type of material
top Expand spray, spray stalk and runner. 18. Burrs 18.1 Formation: burrs are formed along the borders eyelid 18.2 Cause another error between two large mold or mold damaged too. Luc mold clamping inappropriate or set too low. The temperature flow, speed the pressure in the mold spray or too high. 18.3 Remedy Adjust the appropriate mold for the loss or damage of milk. Set the mold clamping force is higher than or greater than the change machine. Low pressure spray, spray rate or pressure smaller holding. Switch to maintain pressure sooner. Reduce heat to flow and mold temperature.
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