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
Design steps of hot runner plastic mold First of all, according to the structure and use requirements of the plastic parts, determine the position of the feeding port. As long as the structure of the plastic part allows, the nozzle and nozzle head in the fixed mold insert will not interfere with the molding structure, and the inlet of the hot runner system can be placed at any position of the plastic part. The position
Relationship between plastic in flowing state and hot runner parts 1. Chemical relationship The decomposition products of molten plastics have a corrosive effect on the mold, so special hot runner parts are required. PVC has strong corrosion at processing temperature, because it will release chlorine and hydrogen and form hydrochloric acid. During the whole process of heating POM and PET, formaldehyde and acetaldehyde are released respectively. Melts of fluoroplastics such as PFA, FEP, PVDF (polyvinylidene
Differences between hot runner mold and cold runner mold The mold is a kind of molding equipment, with good molding effect and basically no deformation after molding. Now there are more and more types of molds. The main reason why the hot runner mold is widely used is its hot runner system. What is the difference between it and cold runner mold? In fact, the difference between the two is mainly in hot runner and
How to maintain the hot runner system? The hot runner system is a kind of widely used plastic molding gating system, which mainly uses the heating device and electronic temperature control system to prevent the molten plastic in the gating system from solidifying, so as to smoothly and orderly fill the plastic into the mold cavity. In the absence of injection pressure, the molten plastic will not flow automatically, nor will wire drawing, overflow and
How to ensure the service life of the hot runner? The hot channel is used in the injection mold to inject molten plastic particles into the heating part system in the mold cavity. The hot channel mold is a new structure, which heats the runner and runner of the traditional mold or three plate mold, and it is unnecessary to take out the runner and runner during each molding. The advantages, use and precautions of