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The hot runner used in the mold field has gradually matured, and the two main key factors of the hot runner technology are the key to measure whether the hot runner technology is good or not……

During the operation of the hot runner system, heating rods and heating rings are set around the runner. Therefore, the whole runner from the nozzle outlet of the injection molding machine to the gate is at high temperature, and the plastic in the runner remains in the molten state all the time. Even after shutdown, there is no need to open the runner to take out the molten material, as long as it is heated to the required temperature at the next startup. So how to maintain the hot runner during operation and after shutdown?

Taizhou Huangyan Mingyang Hot Runner Technology Co., Ltd. must carry out refueling and cleaning for high-temperature plastics and heat sensitive plastics before ending the production of hot runner injection mold. For some plastics such as PC, they can stay in the hot runner system and the barrel of the injection machine. At low temperature of about 160 ℃, the injection can be interrupted for 12 hours, but it can not be interrupted for a long time. Thermosensitive plastic……

Taizhou Huangyan Mingyang Hot Runner Technology Co., Ltd. a: if it is an old mold, it may be that the hot runner heating pipe is broken. Find an electrician to solve it. Fly the new mold to see whether the pump nozzle is vertical, whether there is any chamfer that is not avoided, whether the hot runner is not installed, and whether the rubber inlet is deformed by the nozzle. If these are eliminated……

Hot runner cannot be separated from insert molding technology, CO injection molding technology and multi-component injection molding technology. Due to the limitation of runner, the ratio of wall thickness and the problem of welded joints, a large number of parts such as automobile bumper can only be processed through hot runner mold. In injection molding, the function of hot runner system is becoming more and more important.