Post-treating method for steel-back aluminium-based semisolid-state clad plate

Abstract

The present invention discloses a post-processing method for steel-back aluminum-base semisolid composite plates and relates to the post-processing research field of interfacial mechanical characteristic of steel-back aluminum-base semisolid composite plates. At room temperature, a steel-back aluminum-base semisolid composite plate is rolled with the reduction rate of 0.5-1.6 percent on a precision rolling mill, and the difference between shrinkages of the aluminum-base coating and the steel base in the coagulating and cooling process of the composition is redeemed by the difference between the deformation of the aluminum-base coating and the steel base produced in the rolling process, thereby, reducing the additional interfacial stress of the composite plate, simply and conveniently improving the interfacial shear strength of the composite plate, and solving the technical problems of large energy consumption and small increase amplitude of interfacial shear strength in post-processing method of diffusion annealing of aluminum-base semisolid composite plates.

Description

technical field [0001] The invention relates to a method for post-processing the interface shear strength of a steel-backed aluminum-based semi-solid composite plate. Background technique [0002] The steel-backed aluminum-based semi-solid composite panel is a composite panel composed of a solid steel plate and an aluminum-based semi-solid slurry, and is composed of a steel back and an aluminum-based cladding. Since the expansion coefficient of the aluminum-based cladding is greater than that of the steel back, the shrinkage of the aluminum-based cladding is greater than that of the steel back during the solidification and cooling process after the steel-backed aluminum-based semi-solid composite, but due to the The strength of the cladding is less than that of the steel back, so that at the composite interface, the steel back hinders the normal shrinkage of the aluminum-based cladding, thus generating additional stress at the composite interface. After compound forming, th...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the post-treatment method of diffusion annealing of the steel-backed aluminum-based semi-solid composite plate "large energy consumption and little increase in interface shear strength", and provide a The difference in shrinkage produced by the steel back during the solidification and cooling process after semi-solid composite, thereby reducing the additional stress of the composite interface post-treatment method, further improving the interface shear strength of the steel-backed aluminum-based semi-solid composite plate