Burn and contamination reduction screw design (reducing defect rates and improving productivity)
Reduction of defect rates due to foreign objects and improvement of productivity through screw design engineering.
Watanabe Manufacturing, a leading company that provides comprehensive support from the design and production of injection molding machines, extruders, screws, cylinders, and molds to subsequent maintenance, explains "Screw Design for Reducing Burn and Contamination." By analyzing the chemical properties of the resin, the mechanisms behind molding defects become clear. Based on this knowledge, designing the screw can lead to a significant reduction in defect rates. On our company website, we introduce the selection of materials and the basic concepts for designing and manufacturing original designs. 【Basic Concepts】 ■ Material Selection ■ Screw Design - Design of the Feed Zone - Design of the Compression Zone (Tapered Plasticizing Zone) - Design of the Metering Zone (Uniform Melting Zone, Measuring Zone) - Design of the Three-Point Components *For more details, please refer to the PDF document or feel free to contact us.
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【Example】 Reduction of contamination defects in screw design Molded product: Automotive connector Resin: Aromatic nylon <Problem> ■ Resin adhered to the screw carbonizes and contaminates the interior of the molded product, resulting in foreign matter defects. <Our Proposal> ■ Selection of Daido Steel's DPS400 type wear-resistant material ■ Production of design screws based on our screw design concept ■ Design changes to the three-point components to reduce the resin retention time *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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Watanabe Manufacturing Co., Ltd. is a manufacturer of injection molding machines and extruder screws and cylinders. Due to the rapid advancements in engineering plastics in recent years, plastic has been adopted for all critical safety components, including parts for automotive engines and even in the field of aircraft engines. Harsh resins have been developed one after another, increasing their applications as functional components. Our screws and cylinders are made from corrosion-resistant and wear-resistant materials, and we hope to achieve fully unmanned production for even just one more minute. Watanabe Manufacturing aims to be a leading company in parts for injection molding and extruders, responding to customer needs from screws and cylinders to on-site maintenance and education in resin molding.