Mold manufacturers, plastic mold cooling methods commonly used what?
Plastic mold plays an important role in the process of injection molding, and effective cooling method is very important for mold performance and molding effect. In the process of plastic injection molding, the temperature of plastic melt is usually as high as 200 ° C, but the final ejecting product temperature is only 50 ~ 60 ° C. In order to achieve this goal, the mold needs to be designed to ensure an efficient cooling system.
The effect of cooling system is not only to shorten molding cycle and improve production efficiency, but also to improve product quality. In the whole molding cycle, the cooling curing time accounts for 60% ~ 80% , so the design of a reasonable cooling system for the performance of the mold is very important. An effective cooling system not only ensures rapid mold cooling, but also maintains a constant temperature and controls the cooling rate of the plastic melt. Too fast or too slow cooling rate can lead to uneven filling or product defects, affecting production efficiency and product quality.
In the plastic mold cooling design, the common cooling methods include the following: 1. Loop-shaped water cooling: suitable for high and low drop small or flat-shaped products mold design.
2. Zigzag water loop with water well in the middle of cooling: suitable for low and high drop small but long length of products.
3. Common water transportation and well cooling: suitable for high and low drop products, can not achieve good cooling effect through the loop-shaped water.
Four. Spray water cooling: suitable for the products with slender core and high appearance requirement.
5. Spiral water cooling: for longer cores, in addition to well cooling, additional cooling measures are required to ensure cooling effect.
In the process of plastic mold design and manufacture, it is very important to choose proper cooling method to ensure product quality and improve production efficiency. Through reasonable design and application of cooling system, mold temperature can be effectively controlled to ensure that plastic products in the injection molding process to achieve the best quality and performance.