{"id":7427,"date":"2022-07-14T23:05:46","date_gmt":"2022-07-14T15:05:46","guid":{"rendered":"https:\/\/acomold.com\/clear-plastic-molding.html"},"modified":"2023-07-26T18:15:22","modified_gmt":"2023-07-26T10:15:22","slug":"clear-plastic-molding","status":"publish","type":"post","link":"https:\/\/www.acomold.com\/clear-plastic-molding.html","title":{"rendered":"Clear Plastic Molding"},"content":{"rendered":"

Clear plastic injection molding parts usually made in PC, POM, PMMC, AS, PET, these clear plastic kits used widely in different application, such as auto light, medical devices, cosmetic packing, food container, water tank etc.<\/p>\n

Comparing with other colored parts, strict requirements for appearance is a must for transparent plastic parts, which makes the injection molding processing more complex. Mold design<\/a> and injection molding<\/a> condition are all determined factors to the final result, there are a few problems happen frequently in clear plastic molding process, we provide some solutions as below.\"Clear

Silver streak<\/strong>: during the filling and cool-down process, the internal stress generated in the vertical direction and the orientation of resin flow occurs, while non-current orientation flow and orientation flow have different refractive index flash silk pattern, After its expansion, the clear plastic parts may be weak in strength.<\/p>\n

Annealing is one of the options, for example, plastics in pc material can be heated to above 160 \u2103 for 3 to 5 minutes, and then the natural cooling. As the silver streak is mainly because of the wet resin, so make sure the resin is dry before processing.<\/p>\n

Air bubble<\/strong>: during injection molding process<\/a>, the water and air in the resin are trapped inside the cavity or because of un-sufficient filling, excessive cooling cause a “vacuum bubble”.<\/p>\n

There are below methods to solve it:<\/p>\n