Injection forming synchronous ultrasonic hot finish rolling preparation technology

Abstract

The invention discloses an injection forming synchronous ultrasonic hot finish rolling preparation technology and belongs to the technical field of composite materials. The specific steps includes: ametal solution in a leakage bag passes an inner discharge spout and an outer discharge spout and respectively flows into the position of a nozzle; the metal solution is atomized into a large amount ofcone-shaped injection tiny liquid drops in a high-pressure inert gas; the injection tiny liquid drops fly via high-speed injection gas in an atomization chamber, the liquid drops are rapidly cooled to form a solid-liquid coexistence status, the atomized cone-shaped liquid drops are subjected to scanning deposition to form a deposited layer on the substrate which is in rotating motion and retraction motion; and ultrasonic vibration of an ultrasonic tool bit and hot finish rolling act on the deposited layer, heat in the deposited layer transmits to metal in the next deposited layer, and a finalingot blank is formed. The technology solves the problems of poor organization performance, long process route and oxidation of materials in a traditional process, shortens the processing procedures,completes the entire process under an inert environment, avoids oxidation of the materials, can prepare large-size blank pieces, and lowers the process cost.

Description

technical field [0001] The patent of the present invention relates to the technical field of composite materials, especially a preparation technology of spray forming synchronous ultrasonic hot finish rolling. Background technique [0002] In response to the development needs of further structural weight reduction of the key structural parts of the new generation of national defense cutting-edge weapons and equipment in the fields of aviation, aerospace, weapons, ships, etc., the aluminum-lithium alloy is used as the object through spray forming synchronous ultrasonic hot finish rolling preparation technology, breaking through the aluminum-lithium alloy. The uniform deposition and growth of nozzle spray forming realizes the preparation and forming of typical component simulation parts such as ellipsoids and melon petals with double curvature sections of aerospace rockets and aircraft skins. The actual service requirements of the core aluminum-lithium alloy components are cap...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the occurrence of anisotropy, porosity and microscopic segregation in the preformed ingot prepared by the spray forming process in the prior art, and the lack of good metallurgical bonding between the particles, which affects the shaping, toughness, fatigue performance and direct use performance of the material. Poor and other problems, provide spray forming synchronous ultrasonic hot finish rolling preparation technology to solve the above defects

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