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Steel aluminum-7 plumbago composite board casting, rolling and compositing method

A composite plate and graphite technology, which is applied in metal rolling, temperature control, etc., can solve the problems of undisclosed steel-aluminum-7 graphite semi-solid composite plate casting, rolling and composite method.

Inactive Publication Date: 2008-02-06
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the steel-aluminum-7 graphite composite plate, what mainly bears is the shear action, and the larger the interface shear strength is, the better. The above-mentioned CN1915547 patent does not disclose the steel-aluminum-7 graphite semi-solid composite plate that can obtain the maximum value of the interface shear strength Cast-roll composite method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0009] The preheating temperature of the steel plate is 480°C, the solid phase ratio of the aluminum-7 graphite semi-solid slurry is 40%, and the diffusion time between the steel plate and the aluminum-7 graphite coating in the composite gate is 30s, the interface shear strength is obtained as 61.2MPa steel-aluminum-7 graphite composite plate.

Embodiment approach 2

[0011] The preheating temperature of the steel plate is 500°C, the solid phase rate of the Al-7 graphite semi-solid slurry is 35%, and the diffusion time between the steel plate and the Al-7 graphite coating in the composite gate is 25s, the interface shear strength is obtained as 66.7MPa steel-aluminum-7 graphite composite plate.

Embodiment approach 3

[0013] The interfacial shear strength is obtained when the preheating temperature of the steel plate is 519°C, the solid phase ratio of the aluminum-7 graphite semi-solid slurry is 33.6%, and the diffusion time between the steel plate and the aluminum-7 graphite coating in the composite gate is 23s 70.7MPa steel-aluminum-7 graphite composite plate.

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Abstract

The invention discloses a teel-aluminium-7 graphite clad plate casting and rolling composite method which belongs to the steel-aluminium and graphite clad plate semisolid casting and rolling composite research field. A semisolid casting and rolling composite clad plate formed by a 08Al steel plate of a thickness of one point two millimeter and an aluminium-7 graphite cladding of a thickness of one point three millimeter is casted and rolled compositely under conditions of a preheating temperature of five hundred and nineteen DEG C for the steel plate, an solidoid ratio of thirty-three point six percent for aluminium-7 graphite semisolid sizing agent, a diffusion time of twenty-three seconds between a compound tip inner steel plate and an aluminium-7 graphite cladding; and then a steel-aluminium-7 graphite semisolid casting and rolling composite clad plate can be got with an interface shear strength maximum of seventy point seven MPa.

Description

technical field [0001] The invention relates to a semi-solid casting-rolling composite method for a steel-aluminum-graphite composite plate. Background technique [0002] Publication No.: CN1915547, Invention Name: "A Steel-Aluminum-Graphite Composite Plate Casting-Rolling Composite Method and Device", described the casting-rolling composite method of steel-aluminum-graphite semi-solid composite plate, that is, using steel plate and aluminum-graphite semi-solid slurry The material is cast-rolled composite forming. First, the diffusion between the steel plate and the aluminum-graphite semi-solid slurry is completed in the composite gate. After the composite interface is formed, the steel-aluminum-graphite composite sheet coil is formed by cooling in the cooling chamber and rolling by rolling mill rolls. The method can form a steel-aluminum-graphite composite plate with an interfacial shear strength of 65-69 MPa. [0003] Steel-aluminum-7 graphite composite plate is a composi...

Claims

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Application Information

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IPC IPC(8): B21B1/46B21B1/38B21B37/74B22D19/16
Inventor 张鹏杜云慧刘汉武张君梁金娥
Owner BEIJING JIAOTONG UNIV