Hot runner Insulation Plastic Dome Caps are insulation components specifically designed for use in hot runner systems in injection molds. Its main function is to reduce heat loss, improve thermal efficiency, and ensure that the plastic melt maintains a stable temperature during the flow process. This design not only improves production efficiency, but also reduces energy consumption and minimizes waste generation.

Material selection

Hot runner Insulation Plastic Dome Caps are typically made of high-performance engineering plastics that require the following characteristics:

1. High temperature resistance: Due to its working environment often being in a high temperature state, it is necessary to use materials that can withstand high temperatures, such as PEEK (polyetheretherketone), PPS (polyphenylene sulfide), etc.

2. Thermal insulation: In order to effectively isolate heat, the material should have good thermal insulation performance. Common insulation materials include foamed polyurethane, silicone, ceramic fibers, etc.

3. Mechanical strength: During the injection molding process, the pressure inside the mold is very high, so it is required that the material has sufficient mechanical strength to prevent deformation or damage. Reinforced plastics such as glass fiber reinforced nylon (GFPA) are often used.

4. Chemical stability: Plastic melts may release harmful substances at high temperatures, so materials need to have good chemical stability to avoid reactions with plastic melts.