Why plastic pet dog toy surface glossiness is low, how to resolve it?

by:Zhierde     2020-12-02
Why pet toys surface glossiness is low, how to resolve it? Pet toys production need to consume oil resources, and oil resources are non-renewable resources, with the limited resources of the everybody is responsible for producing high quality plastic products. And sometimes injection molding plastic surface will appear bleak, or gloss, color uneven phenomenon, is this why? For this kind of phenomenon, pet toys manufacturer of small make up according to many years of experience, summarized its reasons and solutions.






1, injection molding machine, injection speed is too fast, the material retention time is too long can also cause plastic products surface gloss drops; Solution: lower injection molding machine injection speed, reduce the residence time of material.


2, material thermal stability is poor, usually under the condition of 100 ℃ environment easy to decompose, 180 ℃ decomposition will accelerate. Solution: use good thermal stability, good gloss materials or can be added in the materials and reasonable to add a certain amount of heat stabilizer.


3, mold temperature is too low, in the manufacturing process of cooling speed too fast, when the melt in the process of mold filling, the cavity wall has already formed the scale, the scale is vulnerable to a variety of forces, to change the white muddy, reducing product surface gloss. Solution: should before starting to use mould, to mould heating in advance, improve the working temperature of mould, the lower cooling rate or in the mold gate adopt measures such as local heating.


4, raw material moisture absorption or contain volatiles are common reasons for plastic products surface gloss. Solution: to fully dry before use the material, when it is necessary to establish the dryer.


5, excessive use of release agent, also can make plastic products surface. Such defects. Solution: should as far as possible need not or use a small amount of release agent, evenly daub.


6, the product quality of raw materials for plastic products surface gloss, only mixed with impurities will make products surface gloss. The solution: using high quality raw materials or use to remove impurities.


7, injection molding machine of the runner and gate size is too small, poor exhaust can cause product surface gloss is not good. The solution: should increase the runner and gate size, adding exhaust slot.


that is today the pet toy manufacturers to introduce the whole content, everyone know that clear? Today we will talk more with everyone, everyone if there are questions, just call consulting us! 0755 - 84125781
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