A kind of preparation method of continuous fiber reinforced titanium matrix composite material

Abstract

The invention belongs to the preparation technology of metal-based composite materials, and relates to a method for preparing continuous fiber-reinforced titanium-based composite materials. In the compounding process, the present invention adopts the method of notching grooves on the surface and bonding temporary adhesive tapes, which can prevent fibers from swimming during the compounding process, thereby obtaining a composite material with uniform fiber arrangement. While fixing the fiber cloth, the temporary adhesive can also well realize the fixing and positioning of the adjacent foil and fiber cloth, preventing them from shifting during the preparation process, so as to prepare a composite material with excellent performance; the foil material Many grooves are etched on the surface of the surface by chemical milling. Compared with the traditional foil-fiber-foil method, the content of matrix metal is further reduced, thereby increasing the percentage of fibers; for the manufacture of locally fiber-reinforced titanium matrix composite components, it can be Using the method of selected area photochemical milling, the local grooves are carved in the foil, and it is easy to realize the laying and fixing of the fiber cloth on the surface of the foil.

Description

technical field [0001] The invention belongs to the preparation technology of metal-based composite materials, and relates to a method for preparing continuous fiber-reinforced titanium-based composite materials. Background technique [0002] Currently, SiC f The preparation cost of Ti / Ti composites is high, there are many factors affecting the performance of the material, and the performance is dispersed, which is the main problem faced by the preparation of titanium-based composites and a bottleneck in its development. The reason why titanium-based composites are not widely used , one of the important reasons is that a preparation method with low cost and stable performance has not been developed yet. The foil-fiber-foil approach is a commonly used SiC f / Ti composite material preparation method, this method has the advantages of simple process, low equipment requirements, high efficiency, and large-scale components can be prepared. In the NASP (National Aero-Space Plan...

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Problems solved by technology

[0007] 1. The uneven arrangement of fibers in the composite material seriously affects the performance of the composite material;

[0008] 2. The fiber percentage is low, and the fiber percentage can generally only reach about 30%;

[0009] 3. When manufacturing local fiber-reinforced structural parts, it is difficult to achieve precise positioning of fibers;

[0011] 5. During the composite process, the fibers are prone to swim, and adjacent fibers will touch together or cause uneven fiber spacing, thereby reducing the performance of the composite material

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