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Short-flow efficient production process of double-metal composite belt material

A production process and composite strip technology, applied in metal rolling and other directions, can solve the problems of easy oxidation of high melting point metal strip surface, low interface bonding strength, and environmental burden, and achieve easy control of product uniformity and interface bonding quality High, high production efficiency effect

Active Publication Date: 2018-09-28
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is a problem: due to the solid-solid composite, the interface bonding strength is low
The existing problems are: the high-melting-point metal strip needs to be prepared in advance, and the surface of the strip needs to be cleaned, there is an environmental burden, and the process flow is not the shortest; the surface of the high-melting-point metal strip is easy to oxidize before compounding, and it is easy to affect the compound quality

Method used

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  • Short-flow efficient production process of double-metal composite belt material
  • Short-flow efficient production process of double-metal composite belt material

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The short-process production process of copper-aluminum composite strip with a width of 100mm and a thickness of 0.3mm, the thickness of the copper layer of the strip accounts for 25% of the total thickness.

[0046] (1) Using T2 pure copper and 1070 pure aluminum as raw materials, a continuous casting composite process is used to prepare a copper-aluminum composite slab with a width of 100mm and a thickness of 25mm and a metallurgical bonding interface in one step. Among them, the casting temperature of molten copper and molten aluminum 1150°C and 750°C respectively, the primary cooling water flow rate is set to 800L / h, the secondary cooling water flow rate is 200L / h, and the continuous casting speed is 100mm / min;

[0047] (2) Put the copper-aluminum composite slab prepared by continuous casting in a heating furnace for heating, the heating temperature is 250°C, and the heating time is 30 minutes;

[0048] (3) The heated slab is warm-rolled by a single-stand reciprocat...

Embodiment 2

[0052] The short-process production process of 3003 / 4004 double aluminum composite strip with a width of 200mm and a thickness of 0.4mm, the thickness of 3003 of the strip accounts for 20% of the total thickness.

[0053] (1) Using 3003 and 4004 as raw materials, a continuous casting composite process was used to prepare a double-aluminum composite slab with a width of 200mm and a thickness of 20mm and a metallurgical bonding interface in one step. The cooling water flow rate is set to 1000L / h, the secondary cooling water flow rate is 500L / h, and the continuous casting speed is 120mm / min;

[0054] (2) Put the double-aluminum composite slab prepared by continuous casting in a heating furnace for heating, the heating temperature is 200°C, and the heating time is 30 minutes;

[0055] (3) The heated slab is warm-rolled and formed by a single-stand reciprocating flat-roll rolling mill. The reduction rate of the first pass is controlled at 50%, and the reduction rate of the subseque...

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Abstract

The invention relates to a short-flow efficient production process of a double-metal composite belt material. The short-flow efficient production process of the double-metal composite belt material comprises the following steps: preparing a high-quality double-metal composite plate blanket with a metallurgical bonding interface by a continuous casting composite process and putting the high-qualitydouble-metal composite plate blanket into a heating furnace to heat; performing multi-pass rolling on the heated plate blanket by a rolling machine, wherein the pass reduction rate of the first passis controlled to be 50 to 70 percent, the pass reduction rate of the subsequent passes is controlled to be 25 to 45 percetn and the total rolling deformation quantity is controlled to be 85 to 95 percent; performing warm rolling forming, wherein the rolling process avoids lubrication; after performing acid-washing treatment, performing rolling forming on a cold-rolling machine, wherein the pass reduction rate is controlled to be 15 to 30 percent, the total rolling deformation quantity is controlled to be less than 90 percent and the rolling speed is 1 to 25 m/min; and performing rapid sensingheating continuous heat treatment on the composite belt material after cold rolling to obtain the double-metal composite belt material. The plate material prepared by the method is short in process flow, high in production efficiency and favorable for realizing large-scale production.

Description

technical field [0001] The invention belongs to the field of metal composite materials, and in particular relates to a short-flow and high-efficiency production process of bimetallic composite strips. Background technique [0002] With the development of science and technology, metallurgy, petroleum, chemical industry, aerospace, transportation, electronic communication, electric power, construction and other fields have higher and higher requirements for the use of materials. In many cases, a single material is difficult to meet the performance requirements of actual use. Composite materials that combine materials with different properties to improve their comprehensive performance have received increasing attention. [0003] Bimetal composite strip is a layered composite material with a sandwich structure that combines two metals together through a certain process. It combines the advantages of the two metals and has a wide range of uses. For example, the steel-aluminum c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16B22D11/00B21B1/46
CPCB21B1/463B22D11/007B22D19/16
Inventor 刘新华谢建新付华栋侯玉飞雷宇
Owner UNIV OF SCI & TECH BEIJING
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