A successful hot runner application project requires multiple links to be guaranteed. The two most important technical factors are: first, the control of plastic temperature; The second is the control of plastic flow.

1. The control of plastic temperature is extremely important in hot runner applications. Many processing and product quality issues arise during the production process. The problem directly stems from the poor temperature control of the hot runner system. For example, when using the hot needle gate method for injection molding, there are issues with poor quality of the product gate, difficulty in closing the valve needle when using the valve gate method for molding, and inconsistent filling time and quality of parts in multi cavity molds. If possible, a hot runner system with separate temperature control in multiple areas should be chosen as much as possible to increase flexibility and adaptability in use.

2. Control of plastic flow. Plastic should flow in a balanced manner in a hot runner system. The gate should be opened simultaneously to allow the plastic to fill each cavity synchronously. For FAMILYMOLD with significant differences in component weight, runner size design balance should be carried out. Otherwise, there will be problems such as insufficient mold filling and pressure retention for some parts, excessive mold filling and pressure retention for some parts, and poor quality due to excessive flash. The size design of the hot runner runner should be reasonable. The size is too small, and the filling pressure loss is too large. If the size is too large, the volume of the hot runner is too large, and the plastic stays in the hot runner system for too long, which damages the material performance and causes the parts to fail to meet the usage requirements after forming. There are already CAE software in the world that specifically helps users design the optimal flow path, such as MOLDCAE.