Advantages of Hot Runner with Needle Valve
Needle valve injection mold is an advanced injection molding technology that significantly improves product quality and production efficiency by precisely controlling the flow of molten material.
1. Eliminates Weld Lines and Improves Surface Finish
Principle: By controlling the opening and closing time of the nozzle, the molten material flows uniformly within the cavity, preventing the direct merging of multiple flow fronts, and thereby eliminating weld lines.
2. Shortens Cycle Time and Increases Production Efficiency
Principle: By using a larger diameter nozzle, the flow rate of the molten material in the cavity is accelerated, and the filling process is optimized by precisely controlling the nozzle opening time.
3. Reduces Internal Stress and Improves Product Stability
Principle: Avoiding the direct merging of the flow fronts reduces the concentration of internal stress in the product.
4. Improves Physical Properties of Products
Principle: Due to the uniform flow of the molten material in the cavity, the shear force is smaller, and the molecular orientation is better.
5. Reduces Material Waste
Principle: By precisely controlling the nozzle opening time, the retention and burning of the molten material are reduced, thereby reducing material waste.
6. Suitable for a Wide Range of Materials
Wide Application: Hot runner systems with needle valves are suitable for various thermoplastic materials, including engineering and high-performance plastics.
7. Enables Production of Complex Shaped Products
Flexible Control: By precisely controlling the opening and closing time of each nozzle, complex-shaped products can be produced.
