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Uniform post-processing method of steel-aluminum 20 stannum solid-liquid phase composite board

A solid-liquid phase and composite plate technology, which is applied in the field of post-treatment of interface shear strength after rolling at room temperature, can solve the problem of large difference in transverse interface shear strength and achieve the effect of reducing the difference in shear strength

Inactive Publication Date: 2012-05-30
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing steel-aluminum 20-tin solid-liquid phase composite plate room temperature rolling post-treatment method "large difference in transverse interface shear strength", and provide a method that can improve the steel-aluminum 20-tin solid A post-processing method for the uniformity of the shear strength distribution of the transverse interface of the liquid phase composite plate to further reduce the difference in the shear strength of the transverse interface of the composite plate

Method used

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Embodiment Construction

[0008] A method for uniform post-treatment of steel-aluminum 20-tin solid-liquid phase composite plates. At room temperature, on a precision rolling mill, the steel-aluminum 20-tin composed of a 1.2mm thick 08Al steel plate and a 2.0mm thick aluminum 20 tin coating layer The solid-liquid phase composite board is subjected to two-pass post-rolling treatment with a total reduction ratio of 2%, and the large difference in the amount of lateral deformation of the aluminum 20 tin coating produced by the single-pass high-reduction rolling post-treatment, Decomposed and coordinated into the small difference in the lateral deformation of the aluminum 20 tin coating after the two-pass low reduction rate rolling, thereby further reducing the difference in the transverse interfacial shear strength of the composite plate and improving the steel aluminum 20 tin solid The distribution uniformity of the interface shear strength of the liquid composite plate.

[0009] In the first embodiment, th...

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Abstract

The invention discloses a uniform post-processing method of a steel-aluminum 20 stannum solid-liquid phase composite board, belonging to the research field of interface shear strength room temperature rolling post-processing of the steel-aluminum 20 stannum liquid phase composite board. The steel-aluminum 20 stannum solid-liquid phase composite board consisting of a 08Al steel board with the thickness of 1.2mm and an aluminum 20 stannum covering layer with the thickness of 2.0mm is subjected to the two-pass rolling process on a precise rolling mill at room temperature, wherein the total reduction ratio is 2% and the reduction ratio of the first pass to the second pass is (8:1)-(4:1). As a result, the lateral interface shear strength difference of the composite board can be reduced to be less than 1.8 Mpa.

Description

Technical field [0001] The invention relates to a method for processing the interface shear strength of a steel-aluminum 20-tin solid-liquid phase composite plate after rolling at room temperature. Background technique [0002] Publication number: CN1710114A, title of the invention: "A post-treatment method for steel-backed aluminum-based solid-liquid-phase composite board", the post-treatment method of steel-backed aluminum-based solid-liquid-phase composite board at room temperature is described, that is, at room temperature Next, on the precision rolling mill, the steel-back aluminum-based solid-liquid-phase composite plate is subjected to post-rolling treatment, and the difference between the aluminum-based coating and the steel back deformation produced by the rolling process is used to compensate for the aluminum-based composite solidification cooling process. The difference in shrinkage between the cladding and the steel back reduces the additional stress at the interface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D7/02
Inventor 张鹏杜云慧刘汉武张君姚莎莎郝志强刘伟
Owner BEIJING JIAOTONG UNIV