What is the difference between hot runner products and ordinary mold products?

1. There is basically no difference between hot runner mold and ordinary mold in molding and debugging. The cold hard head you mentioned does not exist in the hot runner mold, but in fact, the "melting head" still exists, but it has been constantly updated in the hot runner.

When it comes to temperature, it's a little different. Let's just say that the hot nozzle of the hot runner is regarded as the nozzle of the injection molding machine, and the hot runner is regarded as the extension of the barrel.

The hot nozzle temperature of the hot runner is equal to the nozzle temperature of the original barrel, and the temperature of each section of the barrel is pushed back in turn. Generally, there are more than two mold temperature machines (depending on the size of the mold), and one is specially used to cool the outer template of the hot runner of the front mold. In principle, the temperature of the hot runner nozzle in the mold is the highest, and then it decreases in turn (1. Hot nozzle, 2. Hot runner diverter plate, 3. Main flow channel (contact barrel nozzle), 4. The nozzle part of the barrel, 5. The middle part of the bucket and 6. The initial part of the bucket. )

As for the temperature, how to adjust it depends on what plastic material is used, injection molding machine, mold (different brands have some differences, but not much), hot runner control box (different brands have some big differences), the size of hot runner (mold size) and the number of hot nozzles (how many cavities). After all, molding adjustment is also a technical activity, which requires some theoretical knowledge and knowledge.