Key Word: Taili Plastic Machinery; Taili Plastic Machinery-Capacity Improving Expert; Efficient; Stable; PC Material; Goggle
A few days ago, a friend from Yiwu contacted Taili Plastic Machinery and asked us to go to the factory to have a look. The product he makes is PC goggle lenses. The lenses produced by the newly-made mold are not transparent or clear and the lines always appear in the product. Device adjusting technician and mold technician has been adjusting for two days, which all ends in vain. Then, they came to Taili Plastic Machinery for a solution.
We first observed his product when we arrived at his factory. The raw material for his lens is PC. It's easily seen that there are lines in the lens of the goggle. The lenses are not clear and transparent as they should be.
Technician of Taili Plastic Machinery checked according to the steps as follows:
1. Check the material
The raw materials for PC lenses are usually customized according to needs. Thus, the problems are basically impossible to be caused by the materials. However, we still checked the raw materials for ensure. We let the material inject to the air rather than to the screw. It turns out that it's indeed not related with the raw material.
2. Check the mold surface
The unclear phenomenon may also be caused by the rough polishing of the mold. However, through the touch of fingers and repeated experiments, it can be found that there is no problem in the polishing of the mold surface.
3. Check injection process
In the process of checking his injection process, the un-transparence PC lens may also be caused by the internal stress of the product. This phenomenon is not obvious at the moment the lens is molded, but it will appear slowly after a period of time. In order to reduce the generation of internal stress, it is necessary to use a lower injection pressure and reduce the mold-pressure-holding time. If the problem still exists, you can choose to use the mold temperature machine.
Because the thickness of other lenses that he made before is relatively thick, while the thickness of the newly opened mold is relatively thin. Mold temperature machine is not used in his factory. For this product, we suggest that his use of the mold temperature machine will have a better effect, because the generation of orientation internal stress is caused by the uneven distribution of cooling.
Taili Plastic Machinery always keeps in mind that what a good injection molding machine factories should do is to help improve the capacity and boost the profits, rather than offer the similar product the customers need. This is also what Taili Plastic Machinery keeps doing.
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