Carbon fiber autoclave molding


With the rapid development of modern technology, higher […]

With the rapid development of modern technology, higher requirements are placed on materials. Carbon fiber is a new type of composite material with high strength, high temperature resistance and corrosion resistance. It is a typical high-performance fiber. The mechanical properties of carbon fiber products are excellent, and its tensile strength, bending strength and stiffness are better than most new composite materials, which can effectively meet the strength requirements of use. At the same time, the weight reduction effect of carbon fiber products is also very prominent. In recent years, the use of carbon fiber products has become more and more widespread, and carbon fiber products can be seen in the aerospace, medical equipment and automotive industries.

There are many molding processes for carbon fiber composite materials. The common ones are the carbon fiber autoclave molding process and the compression molding process. The principles and equipment used in different molding processes are different and each has its own merits. So what is carbon fiber autoclave molding? Simply put, the carbon fiber prepreg is laid on the mold according to the layup requirements, and then the blank is sealed in a vacuum bag, and then placed in the autoclave. Under vacuum, it is heated and pressurized in an autoclave, waiting to be cured. This process can form high-quality carbon fiber structural parts, and the most important equipment to realize the autoclave forming process is the autoclave.

Carbon fiber composite material autoclave molding has both advantages and disadvantages. Autoclave molding can ensure uniform pressure, use gas to pressurize, and the pressure at each point is uniform, so that the structural parts can be cured and molded under the same pressure. And the inside of the tank is heated by circulating hot air, the temperature is uniform and adjustable, so as to ensure that the temperature is strictly controlled within the range of process settings. Carbon fiber products have high quality, low porosity and controllable resin content. However, the use of the autoclave process is relatively large in investment and cost, and requires certain auxiliary materials (vacuum bags, sealing strips, etc.), so the production cost is also increasing. The main advantage of carbon fiber vacuum autoclave molding is that the production cost is relatively low, and it is usually suitable for manufacturing carbon fiber products, such as carbon fiber door inner panels and outer panels. However, using the autoclave autoclave process, the product is prone to problems such as delamination, voids and deformation.

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