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Method for uniformly post-processing steel brass HSi80 semi-solid composite plate

A semi-solid, clad plate technology, used in rolling mill control devices, metal rolling, manufacturing tools, etc., can solve the problem of large difference in shear strength between transverse interfaces, 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 HSi80 brass semi-solid clad plate room temperature rolling post-processing method "the transverse interface shear strength difference is large", and to provide a method that can improve the steel HSi80 brass 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0009] Embodiment 1, for the steel HSi80 brass 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 1:3, and in the transverse direction of the clad plate The interfacial shear strength difference is 1.9MPa.

Embodiment approach 2

[0010] Embodiment 2: For the steel HSi80 brass 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 clad plate in the transverse direction The interfacial shear strength difference is 1.8MPa.

Embodiment approach 3

[0011] Embodiment 3: For the steel HSi80 brass 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 in the transverse direction of the clad plate The interfacial shear strength difference is 1.7MPa.

[0012] Embodiment 4: For the steel HSi80 brass 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 in the transverse direction of the clad plate The interfacial shear strength difference is 1.8MPa.

[0013] Embodiment 5, for the steel HSi80 brass 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 1:1, and in the transverse direction of the clad plate The interfacial shear strength difference is 1.9MPa.

[0014] It can be s...

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PUM

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Abstract

The invention discloses a method for uniformly post-processing a steel HSi80 brass semi-solid composite plate, which belongs to the field of steel brass HSi80 semi-solid composite plate interface cutting strength room-temperature rolling post-processing research. The method comprises the step of performing double-pass rolling processing on the steel HSi80 brass semi-solid composite plate on a precise rolling mill at room temperature, so that the difference value of the composite plate transverse interface cutting strength can be reduced to within 1.9 MPa, wherein the steel HSi80 brass semi-solid composite plate consists of a steel plate 08A1 with the thickness of 1.2 millimeters and a brass coating HSi80 with the thickness of 1.5 millimeters; the total reduction rate is 1.9 percent; and the ratio of the first pass reduction rate to the second pass reduction rate is 1:3 to 1:1.

Description

technical field [0001] The invention relates to a method for post-processing the interfacial shear strength of a steel HSi80 brass 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 inte...

Claims

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Application Information

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IPC IPC(8): C22F1/00C22F1/08B21B37/00B21B1/38
Inventor 张鹏杜云慧刘汉武
Owner BEIJING JIAOTONG UNIV