Composite material compression molding (also known as compression molding or compression molding) is the operation of first putting powdered, granular or fibrous plastic into the mold cavity at the molding temperature, and then closing the mold to press to shape and solidify it. Compression molding can be used for thermosetting plastics, thermoplastics and rubber materials.
Composite compression molding
The compression molding process is the oldest and infinitely dynamic molding method in the production of composite materials. It is a method in which a certain amount of premix or prepreg is added to a metal pair mold and then heated and pressurized to solidify and form.
2. Application: Mainly used as structural parts, connectors, protective parts and electrical insulation parts. It is widely used in industry, agriculture, transportation, electrical, chemical, construction, machinery and other fields. Because of the reliable quality of molded products, they have also been used in weapons, aircraft, missiles, and satellites.
3. Features: The main advantages of the compression molding process: ① High production efficiency, easy to realize professional and automated production; ② High product size accuracy, good repeatability; ③ Smooth surface, requiring secondary modification; ④ Complicated structure can be formed at one time Products; ⑤Because of mass production, the price is relatively low.
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 With large-scale development, it has been able to produce large-scale automobile parts, bathtubs, and integral toilet components.