In plastic molding engineering, gases generated from the resin and air trapped in the resin are the causes! Here are the countermeasures.
Silver streaks, referred to as "silver," are defects that occur on the surface of resin products, resulting in silver lines. The causes include "gases generated from within the resin" during the plasticization process, "air trapped in the resin," and "air trapped in the mold during the injection process." In response, measures such as setting a lower resin temperature or using a cylinder with gas vents are employed to suppress gas generation. [Causes] ■ Gases generated from within the resin during the plasticization process ■ Air trapped in the resin during the plasticization process ■ Air trapped in the mold during the injection process *For more details, please refer to the PDF document or feel free to contact us.
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【Countermeasures (Partial)】 ■Methods to Reduce Gas Generation ・Set the resin temperature lower ・Use cylinders with gas vents ■Air Entrapment ・Set the back pressure higher ・Slow down the plasticization speed (reduce the screw rotation speed) *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.