The factor that is easily caused by defects in plastic products during the knitting process.
The following is a summary of the technical staff of Zhongke Engineering Plastic Co., Ltd., please see!
First, the lack of material is not well 1 The injection pressure is too small 2 The injection speed is too slow 3 The cavity is poorly ventilated 4 The water inlet is blocked 5 The injection time is too short 6 The nozzle leaks the glue 2, the edging peak 1 The injection pressure is too large 2 The mold lock The mold is not tight, the clamping force is too small. 3 The mold is not tightly sealed. There are debris or template deformation on the mold. 4 Mold joint defect. 3. Bubble plastic material is wet. 1 Plastic material is decomposed. 2 Forming temperature is too low. 3 Poor welding. 4 Plastic. Raw materials mixed with impurities 5 The thickness of the plastic surrounding the insert is not enough 6 The mold temperature is too low 7 The design of the water inlet is unreasonable 8 The plastic material is wet 4. The bonding line 1 The temperature is too low 2 The material temperature is too low 3 The cavity is poorly discharged. Flower 1 plastic material has moisture and volatiles 2 baking temperature is too low 3 inlet size is too large six, black spots (mixed color)
1 Plastic material is decomposed 2 Plastic material scraps are stuck between the plunger and the barrel 3 Plastic material is contaminated or contaminated 4 Plastic material particles are uneven 5 Die cavity exhaust failure 7. Deformation 1 Mold temperature is too high, cooling time Not enough 2 Product wall thickness and thickness disparity 3 The thimble is pushed out improperly, the product is not evenly stressed 4 The cavity is not smooth, the demoulding is not smooth, the friction is too
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