Hot runner systems are a common solution in injection molding, primarily used for injection molding materials with specific requirements.

The following are some common injection molding materials suitable for hot runner systems:

1. Engineering plastics: Engineering plastics are characterized by high strength, heat resistance, and chemical resistance. Common engineering plastics include ABS, PC, PA, and POM. These materials are prone to issues such as poor melt flow and high melt viscosity during injection molding. Using a hot runner system can improve material flow and reduce melt viscosity, thereby achieving better molding results.

2. High-temperature plastics: High-temperature plastics have high melting temperatures and heat deflection temperatures. Common examples include PEEK, PPS, and LCP. During injection molding, these materials are prone to issues such as poor wetting and poor thermal stability. The use of a hot runner system can improve the material’s thermal stability and reduce the risk of poor wetting.

3. Difficult-to-Flow Materials: Certain difficult-to-flow injection molding materials, such as glass-fiber-reinforced plastics and carbon-fiber-reinforced plastics, are prone to causing problems like bubbles and short shots during injection molding. Using a hot runner system can improve material flow, reduce bubble formation, and achieve better molding quality.

Overall, hot runner systems are suitable for injection molding materials with special requirements; they can improve material processability and quality and are widely used in injection molding production across industries such as automotive, electronics, and medical devices. When selecting and using a hot runner system, it is necessary to choose and design the system appropriately based on material characteristics and processing requirements to ensure system stability and reliability.