Vacuum introduction manufacture method of parts with vacuum reinforced rib structure

Abstract

The invention provides a manufacturing method of a component with vacuum stiffener structure by vacuum guiding. The method comprises the following steps of: (1) preparing a mould, cleaning out the surface of the mould, and then spraying a mold release agent for at least one time and drying the mould release agent completely; (2) laying a reinforced material layer on the mould which is processed by step (1) according to required size and the thickness of the layer; (3) placing the stiffener on the reinforced material layer; and (4) laying demoulding cloth and high permeable medium on the layers of the stiffener and the reinforced material and laying out an inlet and an outlet for resin. The method is characterized in that a balloon is put into the stiffener in the step (3) and the balloon is filled with air. The method has the advantages that the function and integrity of ships, large components of locomotives and vehicles, or an enginery room cover are improved, the manufacture cycle of a product is shortened, and the manufacture cost is reduced.

Description

technical field [0001] The invention relates to a vacuum introduction manufacturing method for a structural component with a vacuum reinforcement rib, which is suitable for the vacuum introduction manufacturing process of a structure with a reinforcement rib, such as a nacelle cover, a ship, a locomotive and a vehicle, and belongs to the technical field of resin vacuum introduction molding technology. Background technique [0002] Due to the advantages of excellent product performance, stable quality, low environmental pollution and good working conditions, the vacuum resin vacuum introduction molding process has rapidly replaced the hand lay-up process in the manufacture of large parts or engine room covers of ships, locomotives and vehicles. Occupy obvious technical advantages. However, with the expansion of the size of these large components, in order to strengthen the rigidity of the structure, a rib structure is often used. At present, most of the methods of connecting...

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Problems solved by technology

However, there are many problems in actual operation: firstly, if FRP is used to manufacture the airtight structure, since the inside of the airtight structure is an atmospheric pressure during the manufacturing process, while the outside of the structure is almost vacuum, the airtight structure is under great pressure from the inside to the outside, often In the weak part of the structure, it will cause leakage and make the process fail; if the welded aluminum alloy structure is adopted, the manufacturing cost will be greatly increased

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