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Uniform post-processing method of steel/zinc 3.5 boron nitride semi-solid composite board

A boron nitride, semi-solid technology, applied in the field of interfacial shear strength room temperature rolling post-treatment, can solve the problem of large difference in transverse interfacial shear strength, and achieve the effect of reducing the difference in transverse interfacial shear strength

Inactive Publication Date: 2011-04-20
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 deficiency of the existing steel-zinc 3.5 boron nitride semi-solid composite plate room temperature rolling post-treatment method "large difference in transverse interface shear strength" and provide a method that can improve the steel-zinc 3.5 nitrogen A post-processing method for the uniformity of the transverse interface shear strength distribution of the boron semi-solid composite plate, further reducing the difference in the transverse interface shear strength 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 3.5 boron nitride semi-solid clad plate, carry out the post-treatment of the second pass room temperature rolling with the pass reduction ratio of the first pass and the second pass being 1:2, and the clad plate The interfacial shear strength difference in the transverse direction is 1.8MPa.

Embodiment approach 2

[0010] Embodiment 2, for the steel zinc 3.5 boron nitride 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 1:1.5, and the composite plate The interfacial shear strength difference in the transverse direction is 1.7MPa.

Embodiment approach 3

[0011] Embodiment 3, for the steel zinc 3.5 boron nitride semi-solid composite plate, carry out the post-treatment of the second pass room temperature rolling with the pass reduction ratio of the first pass and the second pass being 1:1, and the composite plate The interfacial shear strength difference in the transverse direction is 1.6MPa.

[0012] Embodiment 4: For the steel-zinc 3.5 boron nitride 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 3:2. The interfacial shear strength difference in the transverse direction is 1.6MPa.

[0013] Embodiment 5, for the steel-zinc 3.5 boron nitride 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 2:1, and the composite plate The interfacial shear strength difference in the transverse direction is 1...

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Abstract

The invention discloses a uniform post-processing method of a steel / zinc 3.5 boron nitride semi-solid composite board, which belongs to the field of room-temperature rolling post-processing research of interface shearing strength of the steel / zinc 3.5 boron nitride semi-solid composite board. In the invention, the steel / zinc 3.5 boron nitride semi-solid composite board formed by a 08Al steel plate with thickness of 1.2 mm and a zinc 3.5 boron nitride coating with thickness of 3.0 mm is subject to twice rolling on a precise rolling mill at the room temperature under a total reduction rate of 0.7%, wherein the reduction rate ratio of the primary rolling to the secondary rolling is (1:2)-(2:1), and the transverse interface shearing strength difference of the composite board can be reduced to less than1.8 MPa.

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-zinc 3.5 boron nitride 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 t...

Claims

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Application Information

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