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Homogenization postprocessing method of steel zinc semisolid composite board

A semi-solid, composite plate technology, applied in the field of post-processing 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: 2012-07-04
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-zinc semi-solid clad plate room temperature rolling post-processing method "large difference in transverse interface shear strength", and provide a method that can improve the transverse interface of steel-zinc semi-solid clad 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0009] Embodiment 1, for the steel-zinc 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 1:2.5, and the interface in the transverse direction of the clad plate The shear strength difference is 2.0 MPa.

Embodiment approach 2

[0010] Embodiment 2: For the steel-zinc 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 1:2, and the interface in the transverse direction of the clad plate The shear strength difference is 1.8 MPa.

[0011] Embodiment 3: For the steel-zinc 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 1:1.5, and the interface in the transverse direction of the clad plate The shear strength difference is 1.7MPa.

[0012] Embodiment 4: For the steel-zinc 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 1:1, and the interface in the transverse direction of the clad plate The shear strength difference is 1.8 MPa.

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

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Abstract

The invention discloses a homogenization postprocessing method of steel zinc semisolid composite board, belonging to the field of research on steel zinc semisolid composite board interface shear strength room temperature rolling postprocessing. The method comprises: twice rolling process is carried out on a steel zinc semisolid composite board composed of a 08Al steel plate with the thickness of 1.2mm and a zinc coating with the thickness of 2.5mm by virtue of a finish rolling machine at room temperature, wherein total down rate is 1.3%, the ratio of down rates of the primary rolling process and the secondary rolling process is 0.4-2, and the transverse interface shear strength difference of the composite board can be reduced to be less than 2.0MPa.

Description

technical field [0001] The invention relates to a method for post-processing the interfacial shear strength of a steel-zinc 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 interface o...

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
Owner BEIJING JIAOTONG UNIV