hot runner systemComposition and structure of

The hot runner pouring system can be understood as an extension of injection molding machinery. The function of the hot runner system is to adiabatic transport the thermoplastic melt near the forming mold or directly into the mold. The hot runner can be independently heated and thermally insulated in the injection mold, which can separately compensate for heat loss caused by contact with the "cold" mold.

Hot runner molds have been successfully used to process various plastic materials, and almost all plastic materials that can be processed with cold runner molds can be processed with hot runner molds. The smallest part is below 0.1g, while the larger part is above 30kg. Hot runner molds are widely used in fields such as electronics, automobiles, healthcare, daily necessities, toys, packaging, construction, and office equipment.

A successful hot runner mold application project requires multiple links to ensure. The two most important technical factors are: first, the control of plastic temperature; The second is the control of plastic flow.

A typical hot runner system consists of the following components:

Hot runner plates (Manifolds)

Hot nozzles

Internal Heating

External Heating

Needle Valve

Heating elements

Sensors and thermal coils

Temperature controllers