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Uniform post-processing method of steel BFe 30 cupronickel semi-solid composite board

A semi-solid, composite plate technology, applied in the direction of rolling mill control devices, metal rolling, manufacturing tools, etc., can solve the problem of large shear strength difference at the transverse interface, and achieve the effect of reducing the shear strength difference

Inactive Publication Date: 2012-05-23
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 BFe30 cupronickel semi-solid clad plate room temperature rolling post-treatment method "large difference in transverse interface shear strength", and provide a kind of steel BFe30 cupronickel semi-solid clad plate that can improve The post-processing method of the distribution uniformity of transverse interfacial shear strength can further reduce the difference of transverse interfacial shear strength of composite plates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0009] Embodiment 1, for the steel BFe30 nickel-nickel 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 1:3, and the composite plate in the transverse direction The interfacial shear strength difference is 2.1MPa.

Embodiment approach 2

[0010] Embodiment 2, for the steel BFe30 nickel-nickel 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 composite plate in the transverse direction The interfacial shear strength difference is 1.9MPa.

Embodiment approach 3

[0011] Embodiment 3, for the steel BFe30 nickel-copper 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 composite plate in the transverse direction The interfacial shear strength difference is 1.8MPa.

[0012] Embodiment 4, for the steel BFe30 nickel-copper 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 3:2, and the composite plate in the transverse direction The interfacial shear strength difference is 1.8MPa.

[0013] Embodiment 5, for steel BFe30 nickel-nickel 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 2:1, and in the transverse direction of the clad plate The interfacial shear strength difference is 2.0MPa. ...

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PUM

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Abstract

The present invention discloses a uniform post-processing method of BFe 30 cupronickel semi-solid composite board, belonging to the researching field of interface shearing strength room temperature rolling post-process of BFe 30 cupronickel semi-solid composite board; the method of the present invention carries through twice rolling processes with a total down rate at 1.5% and a down rate proportion of a first pass and a second pass at 1:3-2:1 for the BFe 30 cupronickel semi-solid composite board composed of a 08A1 steel plate 1.2mm in thickness and a BFe 30 cupronickel covering layer 1.5mm in thickness under room temperature and on a precise rolling mill; the difference value of transverse interface shearing strength of composite board can be reduced within 2.1MPa.

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 BFe30 nickel-copper 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/00C22F1/08B21B37/00B21B1/38
Inventor 杜云慧张鹏刘汉武
Owner BEIJING JIAOTONG UNIV