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The compression molding machine is a device that forms materials through pressure and temperature control, and is widely used in the processing fields of composite materials such as rubber, plastic, and carbon fiber. The following are its core points:
1. Core functions
The compression molding machine heats and solidifies powder, granular or fibrous materials in a mold through mechanical pressure and temperature control, and is suitable for thermosetting plastics, thermoplastics and rubber materials.
2. Process flow
① preheat the material : Place the premix or prepreg into the mold cavity.
② Closed mold pressurization : Pressure is applied through hydraulic or mechanical devices to make the material flow and fill the mold cavity.
③ heating curing : Complete the gelation and hardening stages at high temperatures to form the final product.
3. Common types
① hydraulic molding machine : By applying pressure through hydraulic cylinders, it is suitable for medium to high output production, such as automotive parts and electrical components.
② Vacuum molding machine : equipped with a vacuum chamber, it can expel the air inside the mold chamber, avoid bubbles, and improve surface quality.
③ Carbon fiber molding machine : specifically designed for processing carbon fiber composite materials, it is equipped with a multi-stage temperature and pressure control system.
4. Application fields
① rubber sole manufacturing : Laboratory flat vulcanizing machines, inverted molding machines and other equipment are used for the production of high-efficiency soles.
② aerospace : carbon fiber molding machines are used to manufacture complex structural components such as subframes and load-bearing leaf springs.
③ Automobile manufacturing : BMC molding hydraulic presses are used to produce components such as bumpers and structural plates.
5. Technological development
Current equipment is evolving towards automation and intelligence. For instance, servo hydraulic presses, which combine precise control with low energy consumption, are suitable for the production of high-precision composite parts.
