There are two types of causes for occurrence! We will introduce improvement measures for each cause.
A void refers to bubbles that occur inside a product. Since they are internal, the presence of voids is not noticeable in the appearance of anything other than transparent resin. As a result, they are a type of defect that can easily be overlooked, but they become an unstable factor in terms of strength. In particular, the reduction in strength due to voids is particularly evident under compressive forces. The causes of voids occurring when "air is already present in the injected material" include air that mixes in while the resin is being plasticized, as well as gases and water vapor generated during the plasticization process. These can be improved by adjusting the molding conditions. [Causes and Countermeasures (Partial)] <Problem> ■ When air is already present in the injected material <Countermeasures> ■ Air that mixes in while the resin is being plasticized and gases generated during plasticization → Improved by adjusting molding conditions such as water vapor ■ Air trapped when injecting into spools, runners, and cavities → Adjusting molding conditions has limited effectiveness; modifying the mold is effective *For more details, please refer to the PDF document or feel free to contact us.
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【Other Causes and Measures】 <Problem> ■ When a vacuum void occurs due to reduced internal stress <Measures> ■ Review of product design and adjustment of molding conditions ・Improvements in molding conditions ・Improvements in product design ・Improvements using the IMP method *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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We, PLAMO Co., Ltd., have continued to pursue the theme of how to embody the "ideal form" of plastic molded products based on product design technology, mold technology, and injection molding technology with superior cost performance. The unique molding technologies born from the fusion of this orientation and foundational technologies demonstrate their true value as groundbreaking methods that overturn the common sense of plastic molding, leaving no room for others to follow. In the fiercely competitive world of manufacturing, PLAMO continues to challenge itself as a plastic molding manufacturer capable of providing solutions rooted in the creation of new technologies that respond promptly to the needs of the next generation.