What is a hot runner?
The hot runner is a heating component system used in the injection mold to inject melted plastic particles into the mold cavity. The hot runner is a heating component system used in the injection mold to inject melted plastic particles into the cavity of the mold. Hot runner mold is a new structure that heats the runner and runner of traditional mold or three plate mold, and does not need to take out runner and runner during each forming.
principle
Hot runner mold is a new structure that heats the runner and runner of traditional mold or three plate mold, that is, it does not need to take out runner and runner.
classification
The hot runner system is divided into fully hot runner system and semi hot runner system. The planning of the adiabatic runner is complex, but its function and protection cost are very low. The micro semi hot runner is simple in structure, stable and easy to use, with low failure rate. Because of its simple structure, the cost of protection is low, which can ensure the stability of production.
Classification of hot runner: open type (for micro semi hot runner), needle valve type (for adiabatic runner).
The open structure is simple, which is suitable for micro semi hot runner, but not for thermal insulation runner. The thermal insulation runner has a high limitation on data, and it is easy to show wiredrawing and leakage when directly contacting with the product appearance. The appearance quality is poor. The micro semi hot runner does not contact the product, but contacts the micro runner. Therefore, the open hot nozzle can be used, which is widely used in foreign high-precision molds. The needle valve type hot runner saves data, and the plastic parts are beautiful in appearance, with tight internal quality and high strength.
