Achieving vehicle heat cycle testing with glass insert molding | Filler resin
Solved the problem of glass detachment due to thermal expansion. Selected filler-containing resin and performed appearance tuning to meet automotive standards.
In the vehicle-mounted testing (heat cycle testing), a problem occurred where the glass detached from the molded resin frame, making it difficult to meet the quality standards for vehicle-mounted glass insert products. Additionally, it was necessary to match the matte appearance of the vehicle-mounted housing with that of the molded resin frame. We selected a filler-containing resin that minimizes molding shrinkage and confirmed its durability in heat cycle testing. We also conducted tuning to match the matte appearance of the CID housing with the in-mold foil decorative appearance of the molded resin frame, achieving application to vehicle-mounted CID cover panels and vehicle-mounted display frames.
basic information
【Main Technologies and Methods】 - Evaluation of filler-containing resins (coefficient of linear expansion, adhesion, molding shrinkage rate) - Appearance tuning of in-mold foil decoration (matte feel, gloss value adjustment)
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Applications/Examples of results
【Target Industry】 Automotive (Infotainment, CID) 【Examples of Target Applications】 - Automotive CID cover panel - Automotive display frame
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**About Yoshida Techno Works** We are the world's first manufacturer to commercialize in-mold transfer molding, which utilizes plastic molding and decoration technology cultivated through cosmetic container manufacturing, allowing for simultaneous molding and transfer decoration. **Key Technologies** - Double in-mold molding that performs simultaneous decoration on both sides of the product - Hybrid molding that combines sheet inserts with in-mold techniques - Glass insert in-mold (GIM) molding that inserts reinforced glass into the mold, allowing for integrated molding of resin frames and decoration - Two-color in-mold molding that combines rotational two-color molding with in-mold transfer - Composite technology that integrates metal (such as SUS sheet metal and nuts) with in-mold molding - Real material (natural wood, fabric, synthetic leather, etc.) insert molding - Out-mold deep drawing decoration method (VSS) compatible with metal, glass, and resin