The autoclave process is to place the prepreg on the mold according to the requirements of the layer, and put it in the autoclave after being sealed in a vacuum bag. After the autoclave equipment is heated and pressurized, the material curing reaction is completed. The process method of making the prepreg blank into the required shape and meeting the quality requirements.
Advantages of autoclave process:
Uniform pressure in the tank: Use compressed air or inert gas (N2, CO2) or mixed gas to inflate and pressurize the autoclave, and the pressure on the normal line of each point on the surface of the vacuum bag is the same, so that the components are formed under uniform pressure.Curing
The air temperature in the tank is uniform: the heating (or cooling) gas circulates in the tank at a high speed, and the temperature of the gas in the tank is basically the same. Under the premise of a reasonable mold structure, the temperature difference at each point during the temperature rise and fall of the components sealed on the mold can be guaranteed Not big
Wide application range: The mold is relatively simple and efficient, suitable for the molding of large-area and complex-shaped skins, wall panels and shells, and can form various complex structures and parts of different sizes. The temperature and pressure conditions of the autoclave can almost meet the molding process requirements of all polymer matrix composites;
The molding process is stable and reliable: the pressure and temperature in the autoclave are uniform, which can ensure the stable quality of the molded parts. The components manufactured by the autoclave process have low porosity and uniform resin content. Compared with other molding processes, the mechanical properties of the parts prepared by the autoclave process are stable and reliable. So far, most of the composite material parts that require high load in the aerospace field are used Autoclave process.
The main applications of the autoclave process include:
Aerospace field: skin parts, ribs, frames, fairings, etc.;
Automotive field: body panels and body structure parts, such as hood inner and outer panels, door inner and outer panels, roof, fenders, door sill beams, B-pillars, etc.;
Rail transit: corbels, side beams, etc.;
Boat industry, high-end consumer goods, etc.
The autoclave process is the main method of manufacturing continuous fiber reinforced composite parts. It is widely used in high-tech fields such as aerospace, rail transit, sports and leisure, and new energy. The composite products produced by the autoclave process account for more than 50% of the total output of composite products, and the proportion in the aerospace field is as high as 80%. above.
Post time: Sep-02-2021