Uniform post processing method for steel and aluminum 7 graphite semi-solid composite plate

Abstract

The invention discloses a uniform post processing method for a steel and aluminum 7 graphite semi-solid composite plate and belongs to the field of interface shear strength room-temperature rolling post processing research of steel and aluminum 7 graphite semi-solid composite plates. By the method, the steel and aluminum 7 graphite semi-solid composite plate consisting of a 08Al steel plate with the thickness of 1.2mm and an aluminum 7 graphite coating with the thickness of 2.5mm is rolled for two passes on a precise rolling mill at the room temperature, wherein the total down rate is 0.5 percent, a ratio of a first pass down rate to a second pass down rate is 1:3.5-1:1.5, and the lateral interface shear strength difference value of the composite plate can be reduced to be less than 1.9MPa.

Description

technical field

[0001] The invention relates to a post-processing method of rolling at room temperature for the interfacial shear strength of a steel-aluminum-7-graphite semi-solid composite plate. Background technique

[0002] Publication No.: CN101117696A, Invention Name: "A post-treatment method for steel-backed aluminum-based semi-solid composite board", expounds the room-temperature rolling post-treatment method for steel-backed aluminum-based semi-solid composite board, that is, at room temperature, In the precision rolling mill, the steel-backed aluminum-based semi-solid composite plate is processed after rolling, and the difference in deformation between the aluminum-based coating and the steel back produced by the rolling treatment is used to compensate for the difference between the aluminum-based coating and the steel back during the composite solidification and cooling process. The difference in the shrinkage of the steel back reduces the additional stress on the...