Centrifugal Casting
Centrifugal casting is a process used to manufacture hollow cylindrical composite parts. In this process, resin and fibers are poured into a rotating mold. The mold rotates at high speeds, typically between 300 to 3000 RPM, depending on the diameter of the part. The centrifugal force pushes the material to the outer walls of the mold, where it forms a uniform layer. The mold is usually heated to around 100°C to 150°C to cure the resin.
Fiber volume fractions in centrifugal casting range from 30% to 60%, and the wall thickness of the parts can vary from 5 mm to over 100 mm. The rotation speed is carefully controlled to ensure that the material is distributed evenly and that the part remains free of voids or air pockets.
Centrifugal casting produces parts with minimal internal defects due to the high centrifugal force, which ensures that the fibers and resin are evenly distributed. The process is highly efficient for producing large, hollow parts such as pipes and tanks. Parts manufactured via centrifugal casting can have tensile strengths up to 1000 MPa and excellent chemical resistance, making them suitable for corrosive environments.
Centrifugal casting is commonly used in industries that require hollow, cylindrical parts with high structural integrity. The chemical and oil industries use centrifugal cast pipes for transporting corrosive fluids. These pipes can withstand pressures up to 40 bar and have high corrosion resistance due to the high-quality resin used. In the water treatment industry, centrifugal cast parts are used for large-diameter pipes and storage tanks that require chemical and UV resistance.
