Common plastic injection molding process and baking temperature

Common plastic injection molding process and baking temperature are as follows:

PP

Nozzles 200-220, mold temperature 40-60, baking temperature 80-120, baking time 2-4 hours.

PC

Nozzles 270-300, mold temperature 80-120, baking temperature 100-120, drying time 2-4 hours.

PA6

Nozzles 250-260, mold temperature 50-110, baking temperature 80-110, drying time 4-6 hours.

PA66

Nozzles 250-280, mold temperature 50-110, baking temperature 80-130, drying time 4-6 hours.

PPS

Nozzles 290-300, mold temperature 80-150, baking temperature 120-140, baking time 2-4 hours.

LCP

Nozzles 300-310, mold temperature 90-180, baking temperature 130-140, baking time 2-4 hours.

POM

Nozzles 170-230, mold temperature 50-80, baking temperature 80-120, baking time 2-4 hours.

PPO

Nozzles 210-260, mold temperature 50-90, baking temperature 80-140, baking time 2-4 hours.

PEI

Nozzles 300-320, mold temperature 180-200, baking temperature 120-140, baking time 2-4 hours.

PEEK

Nozzles 310-360, mold temperature 120-160, baking temperature 120-140, baking time 2-4 hours.

PA46

Nozzles 290-300, mold temperature 80-120, baking temperature 290-300, baking time 2-4 hours.

PBT

Nozzle temperature 230-245 Injection pressure 70-120, holding pressure 40-50, mold temperature 50-160, screw speed 40-70, back pressure 5-10, baking temperature 100-140 drying time 4-6 hours.

PET

Nozzle 240-270, injection pressure 70-100, holding pressure 40-50, mold temperature 50-160, screw speed 40-75, screw back pressure 5-10, drying temperature 100-140, baking time 6-8 hour.

TPU

The temperature of the baking material is determined according to the hardness. 60A-80A The temperature of the baking is 90-100 degrees 85A-98A The temperature of the baking is 100-105 degrees 60D-71D The temperature of the baking is 105-110 degrees for 3-5 hours.

LCP

The drying temperature and molding temperature of different varieties of each company are different. For example, the optimal molding temperature of EI series of Japan Polyplastics is 340-370, and the upper limit is 365 degrees and no more than 30 minutes.

PC/ABS

The specific gravity is generally 1.15, the water absorption rate is 0.2%, the molding shrinkage is 0.4-0.6, the heat distortion temperature is 120%, the drying temperature should be 100, and the baking temperature is 100-110 degrees for 3-4 hours.

AS

Nozzle 190-210 degree injection pressure should be 50-60 degrees, holding pressure should be 40-50, mold temperature 50-70, screw speed 40-60, back pressure 5-10 drying temperature 80-100 drying time 2 -4H.

PA properties

Crystalline thermoplastic plastic with obvious melting point, Nylon6 Tm is 220-230 °C, Nylon66 is 260-270 °C. Nylon itself has water absorption and therefore absorbs water. It must be dried before forming. When the temperature is too high, the nylon particles will change color.