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Homogenization post processing method for steel aluminum 9 boron nitride solid-liquid phase composite board

A boron nitride solid-liquid and composite plate technology is applied in the field of post-processing of interfacial shear strength after rolling at room temperature, which 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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  • Abstract
  • Description
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  • Application Information

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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 9 boron nitride solid-liquid phase composite plate room temperature rolling post-treatment method "large difference in transverse interface shear strength" and provide a method that can improve the steel aluminum 9 A post-processing method for the uniformity of the shear strength distribution of the transverse interface of the boron nitride solid-liquid phase composite plate, further reducing the difference in the shear strength of the transverse interface of the composite plate

Method used

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Embodiment Construction

[0008] A uniform aftertreatment method for steel aluminum 9 boron nitride solid-liquid phase composite plate, at room temperature, on a precision rolling mill, the 08Al steel plate with a thickness of 1.2mm and the aluminum 9 boron nitride cladding layer with a thickness of 2.5mm are formed Steel-aluminum-9-boron-nitride solid-liquid phase composite plate is subjected to post-rolling treatment in two passes with a total reduction rate of 1.5%. The large difference in the lateral deformation of the layer is decomposed and coordinated into the small difference in the lateral deformation of the aluminum 9 boron nitride cladding produced after the second pass of small reduction rate rolling, thereby further reducing the transverse interface shear strength of the composite plate The difference improves the distribution uniformity of the shear strength of the steel aluminum 9 boron nitride solid-liquid phase composite plate interface.

[0009] Embodiment 1, for the steel aluminum 9 ...

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Abstract

The invention discloses a homogenization post processing method for a steel aluminum 9 boron nitride solid-liquid phase composite board, belonging to the field of research on rolling post processing at room temperature of interface shear strength of a steel aluminum 9 boron nitride solid-liquid phase composite board. In the method of the invention, twice rolling processes are carried out on the steel aluminum 9 boron nitride solid-liquid phase composite board formed by a 08A1 steel plate the thickness of which is 1.2m and an aluminum boron nitride layer the thickness of which is 2.5mm by a rolling mill at room temperature, wherein the total down rate is 1.5% and the down rate ratio of the primary rolling process to the secondary rolling process is (1:4)-(1:1), and the transverse interfaceshear strength difference of the composite board is reduced below 1.8MPa.

Description

technical field [0001] The invention relates to a method for post-processing the interface shear strength of a steel aluminum 9 boron nitride solid-liquid phase composite plate after rolling at room temperature. Background technique [0002] Publication No.: CN1710114A, Invention Name: "A post-treatment method for steel-backed aluminum-based solid-liquid phase composite plate", described the room temperature rolling post-treatment method for steel-backed aluminum-based solid-liquid phase composite plate, that is, at room temperature Next, in the precision rolling mill, the steel-backed aluminum-based solid-liquid phase composite plate is subjected to post-rolling treatment, and the difference in deformation between the aluminum-based cladding and the steel back produced by the rolling treatment is used to compensate for the deformation of the aluminum-based composite plate during the composite solidification and cooling process. The difference in shrinkage between the claddi...

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