Improving silver defects caused by moisture and gas! Molding technology that does not require a drying process!
The "Vent Type Injection Molding Technology" is a molding technology aimed at eliminating "silver defects" caused by moisture and volatile gases in plastic materials. After the plastic material is melted and pressurized in the first stage, the principle of degassing is utilized, where moisture and volatile gas components are discharged from the pressure release area (vent hole). It is a rational mechanism that squeezes out moisture and volatile gases that cannot be completely removed by drying equipment alone, eliminating the need for a drying process itself. Additionally, during the development process, we devised a technology called "Raw Material Supply Control System and Raw Material Supply Control Method," which allows for the control of the supply amount of raw materials at any screw position. 【Features】 ■ Improvement of silver defects ■ Utilization of the degassing principle to discharge moisture and gases from the vent hole ■ No need for a drying process ■ Contributes to improved quality and productivity ■ Development of the "Raw Material Supply Control System and Raw Material Supply Control Method" *For more details, please refer to the PDF document or feel free to contact us.
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[Raw Material Supply Control System and Raw Material Supply Control Method] ■ A technology that can control any raw material supply amount at any screw position ■ Improvement of unstable thermal history caused by changes in effective screw length, which is a weakness of inline screws ■ New method "Variable Supply Hungry Molding Method" ・ Enables raw material supply according to changes in effective screw length ・ Constant thermal history unaffected by changes in effective screw length ・ Stable plasticization (no thermal shortage, consistently stable melting and degassing) ・ Back degassing by securing gaps (suppressing raw material congestion due to poor melting) ■ New method "Super Hunger Supply" ・ Stops raw material supply at the end of the metering phase, minimizing the remaining resin in the first stage to the extreme ・ Suppression of overheating within the cylinder (low thermal history and suppression of thermal decomposition) * For more details, please refer to the PDF document or feel free to contact us.
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【Purpose】 ■ Improve "silver defects" caused by moisture and volatile gases in plastic materials. *For more details, please refer to the PDF document or feel free to contact us.
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IO Industry Co., Ltd. is a "functional resin parts manufacturer" that can consistently produce everything in-house from product design to process design, injection molding, painting, and assembly, focusing on "automotive plastic parts." As a Tier 1 supplier for major automobile manufacturers, the company has a proven track record of mass-producing interior parts such as drink holders and exterior parts such as door handles for many years. 【Proprietary Technologies】 - **Gas Injection Molding**: Maintains appearance quality while reducing material costs and weight. - **Two-color Molding**: Allows for durable decoration without painting by combining resins of different colors. - **Heat & Cool Molding**: Enables the molding of clean appearance products without weld lines. - **Vent Molding**: Allows for high-design molded products using bioengineering plastics (Durabio) without painting (material-based molding). - **DSI Molding**: Enables the molding of hollow bodies with minimal quality variation. - **Metal Replacement**: Achieves significant weight reduction through resin conversion via strength/structural design using CAE.
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