Preparation method of comfortable copying pen holder
A pen holder and comfortable technology, applied in the direction of coating, etc., can solve the problems of easy fatigue damage of the pen holder, inconvenient copying, etc., and achieve the effects of not being easy to process, convenient for injection molding, and improving injection efficiency
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Embodiment 1
[0019] Mix EPDM rubber and 43 parts of compounding ingredients evenly, then dry the high-density polyethylene, add it to the extruder, and granulate it through the granulator. Finally, the two components are added to the barrel of the two-component double-channel injection machine. The rubber channel is 0.4 meters long and the temperature is 70 ° C. The plastic channel is 0.5 meters long and the temperature is 160 ° C. Inject into the cavity of a zigzag occlusal mold at a temperature of 150° C., and take out the molded product after the mold is closed for 8 minutes.
Embodiment 2
[0022] The difference between this embodiment and Example 1 is that in Embodiment 2, the length of the rubber flow path is 0.6 meters, the temperature is 100 ° C, the length of the plastic flow path is 0.5 meters, the temperature is 160 ° C, and the temperature is 150 ° C through injection at a 45° angle. °C mold, the mold was closed for 8 minutes.
Embodiment 3
[0024] The difference between this embodiment and Examples 1-2 is that in Embodiment 3, the length of the rubber flow path is 0.4 meters, the temperature is 70°C, the length of the plastic flow path is 0.3 meters, the temperature is 100°C, and it is injected through a 45° angle head to the temperature For 150 °C mold, mold closed for 8 min.
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