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Even post-treatment method for steel-aluminum 4-graphite semi-solid composite 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: 2011-04-13
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-graphite semi-solid composite plate room temperature rolling post-processing method "large difference in transverse interface shear strength", and provide a method that can improve the steel-aluminum-graphite semi-solid A post-processing method for the uniformity of the transverse interface shear strength distribution of the 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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Experimental program
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Effect test

Embodiment approach 2

[0010] Embodiment 2, for the steel-aluminum-graphite semi-solid composite 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 1:3.5, and in the transverse direction of the composite plate The interfacial shear strength difference is 1.7MPa.

[0011] Embodiment 3: For the steel-aluminum-graphite semi-solid composite plate, the second-pass room-temperature rolling post-treatment with the pass reduction ratio of the first pass and the second pass being 1:3 is carried out. The interfacial shear strength difference is 1.5MPa.

[0012] Embodiment 4: For the steel-aluminum-graphite semi-solid composite 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 1:2.5, and the composite plate is horizontally The interfacial shear strength difference is 1.7MPa.

[0013] Embodiment 5, for the steel-alumi...

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Abstract

The invention discloses an even post-treatment method for a steel-aluminum 4-graphite semi-solid composite plate, belonging to the research field of interfacial shear strength room temperature roll post-treatment of a steel-aluminum 4-graphite semi-solid composite plate. In the method, the steel-aluminum 4-graphite semi-solid composite plate is composed of a 08Al steel plate with the thickness of 1.2mm and an aluminum 4 graphite coating with the thickness of 2.0mm, two-pass rolling is carried out on the composite plate on an precise rolling mill at room temperature, wherein the total down rate is 0.6% and the ratio of pass down rate of a first pass to that of a second pass is 1:4 to 1:2; and the transverse interfacial shear strength difference of the composite plate is decreased to less than 2.0MPa.

Description

technical field [0001] The invention relates to a method for post-processing the interface shear strength of a steel-aluminum-graphite semi-solid composite plate after rolling at room temperature. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/02
Inventor 张鹏杜云慧刘汉武
Owner BEIJING JIAOTONG UNIV