Apparatus and method for producing continuous wire surface coatings by physical vapor deposition

Abstract

The invention provides a device and method for preparing continuous wire surface coating by physical vapor deposition, the device includes a steam supply source (3), a wire winding mechanism and two turning and guiding units (2) with a certain distance, The winding mechanism can pull the fiber (1) and feed it continuously, and the steam supply source (3) can supply gas capable of forming a coating on the surface of the fiber (1) between the two turning and guiding units (2). The continuous feed deposition of continuous wire is realized through the multi-degree-of-freedom motion mechanism of "continuous feed + multiple reciprocation + rotation around the axis". In the process of physical vapor deposition, the thickness uniformity of the surface coating of continuous wire can be improved. It can realize the continuous feed deposition of filaments, which fills the gap in the research on the preparation of continuous fiber-reinforced titanium matrix composites by EB‑PVD technology.

Description

technical field [0001] The invention relates to the field of continuous fiber reinforced metal / ceramic matrix composite material precursor wire preparation, in particular to a device for preparing continuous wire surface coatings by physical vapor deposition, or a method for preparing continuous wire surface coatings by physical vapor deposition Methods. Background technique [0002] Continuous fiber reinforced metal matrix composites are a new class of structural materials developed in recent years. It combines the strength and stiffness of ceramic fiber with the advantages of alloy matrix, and has high specific strength, specific stiffness and service temperature as well as excellent fatigue and creep resistance. The strength at high temperature can still maintain 70% of the room temperature strength, the Young's modulus is twice that of metal titanium, and the average use temperature of the matrix can be increased by 200 °C. It can make compressor blades, casings, space...

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Problems solved by technology

[0004] In order to solve the problem in the prior art that a uniform coating cannot be continuously formed on the surface of the continuous wire, the present invention provides a device and method for preparing a continuous wire surface coating by physical vapor deposition, which is prepared by physical vapor deposition The equipment and method for continuous wire surface coating can improve the thickness uniformity of continuous wire surface coating in the process of physical vapor deposition, and realize the continuous feed deposition of long wire

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