202019(木)

Medical Mould-Hot Runner System Process Features

Hot runners are heated to ensure that the plastics in the runners and gates remain molten. Hot runner systems generally consist of hot nozzles, manifolds, temperature control boxes, and accessories. Hot nozzles generally include two types: open Hot nozzles and needle valve hot nozzles, because the form of the hot nozzle directly determines the selection of the hot runner system and the manufacture of the mold, the hot runner system is often divided into open hot runner systems and needle valve hot runner systems accordingly.

The hot runner plays a very important role in the production molding. The hot runner system is a combination. Not a single product. It includes a nozzle, a runner plate, a thermostat, and a diverter plate. These together form the hot runner system. As a common part of the injection mold system, the plastics in the runner and the gate are kept molten by heating. Because the heating rod and heating ring are installed near or in the center of the runner, the entire runner from the injection nozzle of the injection molding machine to the gate is in a high temperature state, so that the plastic in the runner is kept molten. Generally, it is not necessary to open the runner to take out the condensation after the shutdown. Material, only need to heat the runner to the required temperature when the machine is turned on again. Therefore, the hot runner process is sometimes referred to as a hot header system, or as runnerless molding.

Yuhuan Shengjiu Mould Co., Ltd. is a new-type medical mould manufacturer and supplier in China, which has developed a complete hot runner system. The main production and supply: syringe mould, safety needle mould, oxygen mask mould, needleless connector and other medical mould products. For information on Medical Mould please visit: https://www.medicalmould.net






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