Professional SMC and BMC Watertight Manhole Cover Moldings

The main advantages of the compression molding process:
1. High production efficiency, easy to realize specialized and automated production;
2. The product has high dimensional accuracy and good repeatability;
3. The surface is smooth and clean without secondary modification;
4. It can form products with complex structure at one time;
5. Because of mass production, the price is relatively low.
The shortcomings of compression molding are that the manufacturing of compression molds is complicated, the investment is relatively large, and the limitation of the press machine, it is suitable for mass production of small and medium composite materials. With the continuous improvement and development of metal processing technology, press manufacturing level and synthetic resin process performance, press tonnage and table size continue to increase, and the molding temperature and pressure of molded materials are relatively reduced, making the size of molded products gradually move toward Large-scale development, and can now produce large-scale automobile parts, bathtubs, integral toilet components, etc.