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Uniform post-treatment method for steel-aluminum 5 graphite semi-solid composite plate

A semi-solid, composite plate technology, applied in the field of interfacial shear strength after rolling at room temperature, can solve the problem of large difference in transverse interfacial 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 deficiency 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 strength of 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
Comparison scheme
Effect test

Embodiment approach 1

[0009] Embodiment 1: For the steel-aluminum-5-graphite semi-solid composite plate, a second-pass room-temperature rolling post-treatment with a pass reduction ratio of the first pass and the second pass of 1:4.5 is carried out, and the composite plate is horizontally The interfacial shear strength difference is 1.7MPa.

Embodiment approach 2

[0010] Embodiment 2: For the steel-aluminum-5-graphite semi-solid composite plate, 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 is carried out. The interfacial shear strength difference is 1.6MPa.

[0011] Embodiment 3: For steel-aluminum-5-graphite semi-solid composite plates, a second-pass room-temperature rolling post-treatment with a pass reduction ratio of 1:3.5 in the first pass and the second pass is carried out. The interfacial shear strength difference is 1.5MPa.

[0012] Embodiment 4: For the steel-aluminum-5-graphite semi-solid composite plate, a second-pass room-temperature rolling post-treatment in which the reduction ratio of the first pass and the second pass is 1:3 is carried out. The interfacial shear strength difference is 1.6MPa.

[0013] Embodiment 5, for the steel-aluminum-5-graphite semi-solid composite plate, carry out the second-pass room-temperature rolling post-t...

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Abstract

The invention discloses a uniform post-treatment method for a steel-aluminum 5 graphite semi-solid composite plate, belonging to the research field of room temperature rolling post-treatment of the interfacial shear strength of the steel-aluminum 5 graphite semi-solid composite plate. The steel-aluminum 5 graphite semi-solid composite plate formed by a 1.2mm 08Al steel plate and a 1.0mm aluminum 5 graphite coating is subject to two passes of rolling treatment on a precision rolling mill at room temperature, wherein the total reduction rate is 0.8 and the proportion of the pass reduction rate of the first pass to the second pass is 1:4.5 to 1:2.5, and the difference of transverse interface shear strength of the composite plate can be reduced to within 1.8MPa.

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-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 i...

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
Owner BEIJING JIAOTONG UNIV