The weak of a end product

• Check if the material is fully dry
• Check if the material is being polluted
• Reduce the additional proportion of recycled materials
• Avoid high temperature of melting plastic

scorched

• Reduce the temperature of nozzle.
• Reduce the temperature of hopper and melting plastic.
• Reduce the injection speed
• Improve the degas system, and bigger gate or change the position of insert.

Color changing

• Check the purity of materials, hopper and insert entry
• Cleanning of hopper
• Reduce the setting temperature of nozzle and hopper.
• Check the abrasion loss of hopper and screw.
• Confirm the material retention time in hopper, or change smaller machine.

Flow Mark

• Reduce the injection speed or adopt the multiple step molding.
• Increase the temperature of resin and mold
• Increase the size of gate

Finished Product Surface Lines

• Check wheather the resin is dry
• Check wheather the resin is being polluted
• Reduce the termperature of resin
• Increase the size of gate
• Increase the temperature of mold
• Reduce the temperature of nozzle
• Confirm the material retention time in hopper

Finished Product Stick on Cavity Side

• Reduce the inject pressure.
• Increase the cooling-down time
• Reduce the temperature of cavity side
• Confirm the draft angle in mold and check the situation of barb