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Homogenization postprocessing method for steel-aluminium semi-solid clad plate

A semi-solid, composite plate technology, applied in the field of interface shear strength after room temperature rolling, 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: 2012-06-20
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 shortcoming of the existing steel-aluminum semi-solid composite plate room temperature rolling post-processing method "large difference in shear strength of the transverse interface", and provide a method that can improve the transverse interface of the steel-aluminum semi-solid composite plate. A post-processing method for the uniformity of shear strength distribution to further reduce the difference in the shear strength of the transverse interface of the composite plate

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0009] Embodiment 1, the steel-aluminum semi-solid composite plate is subjected to a second-pass room-temperature rolling post-treatment in which the pass reduction ratio of the first pass and the second pass is 1:4.5, and the interface in the transverse direction of the composite plate The shear strength difference is 2.3 MPa.

Embodiment approach 2

[0010] Embodiment 2: For the steel-aluminum semi-solid clad plate, carry out the second-pass room-temperature rolling post-treatment with the pass reduction ratio of the first pass and the second pass being 1:3.5, and the interface in the transverse direction of the clad plate The shear strength difference is 1.9 MPa.

Embodiment approach 3

[0011] Embodiment 3, for the steel-aluminum semi-solid clad plate, carry out the post-treatment of two-pass room temperature rolling with the pass reduction ratio of the first pass and the second pass being 1:2.5, and the interface in the transverse direction of the clad plate The shear strength difference is 1.5MPa.

[0012] Embodiment 4: For the steel-aluminum semi-solid clad plate, carry out the post-treatment of two-pass room-temperature rolling with the pass reduction ratio of the first pass and the second pass being 1:2, and the interface in the transverse direction of the clad plate The shear strength difference is 1.7 MPa.

[0013] Embodiment 5, for the steel-aluminum semi-solid clad plate, carry out the second-pass room temperature rolling post-treatment in which the pass reduction ratio of the first pass and the second pass is 1:1, the interface in the transverse direction of the clad plate The shear strength difference is 2.1MPa.

[0014] It can be seen that for t...

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Abstract

The invention discloses a homogenization postprocessing method for a steel-aluminium semi-solid clad plate, and belongs to the field of study of steel-aluminium semi-solid clad plate interface shear strength room-temperatue rolling postprocessing. In the method, the steel-aluminium semi-solid clad plate consisting of a 08 Al steel plate with the thickness of 1.2mm and an industrial pure aluminiumcladding with the thickness of 2.5mm is subjected to two-pass rolling treatment on a precision mill at room temperature, wherein the total reduction rate is 1.0 percent, and the reduction rate ratio of the first pass to the second pass is 1:4.5-1:1, and the horizontal interface shear strength difference of the clad plate is reduced within 2.3MPa.

Description

technical field [0001] The invention relates to a post-treatment method of rolling at room temperature for the interfacial shear strength of a steel-aluminum 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 interface o...

Claims

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Application Information

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