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Method and device for preparing steel/aluminum laminated composite plate by hot continuous rolling with small rolling reduction

A reduction and clad plate technology, which is applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as uncoordinated deformation, large reduction in a single pass, and easy oxidation of the bonding interface, so as to avoid Large noise pollution, stable product performance, and reduced combination difficulty

Active Publication Date: 2020-04-17
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, when the steel / aluminum layered composite plate is prepared by the cold-rolling composite method, the reduction rate of the first pass needs to exceed 50%, which requires extremely high requirements for rolling equipment. Currently, it is mainly used to prepare steel / aluminum layers with smaller thickness specifications. When the steel / aluminum layered composite plate is prepared by the hot-rolling composite method, there are problems such as easy oxidation of the bonding interface, huge difference in high-temperature performance of the component metals, and small deformation of the steel during the rolling process. At present, the thickness can be achieved below 5mm. The preparation of steel / aluminum laminated composite panels, but when the thickness of the preparation is large, the problems of different ductility of the component metals and small deformation of the steel (or even no deformation) are further highlighted, resulting in only a single pass of large reduction To prepare thick-gauge steel / aluminum laminated composite panels, but the effect is still unsatisfactory, unable to achieve continuous high-quality preparation
In the invention patent "Method for preparing steel-aluminum composite plate by using electromagnetic induction heating and rolling process (CN108421825)", it is proposed to use different temperature rolling to solve the problem of deformation inconsistency in the rolling process of component metals, but there is still a single pass Large amount of reduction, and the need to carry out anti-oxidation treatment on the interface to be composited

Method used

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  • Method and device for preparing steel/aluminum laminated composite plate by hot continuous rolling with small rolling reduction
  • Method and device for preparing steel/aluminum laminated composite plate by hot continuous rolling with small rolling reduction
  • Method and device for preparing steel/aluminum laminated composite plate by hot continuous rolling with small rolling reduction

Examples

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Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 Shown, a kind of method for preparing steel / aluminum layered composite plate by cold-hot continuous rolling with small reduction, adopting this method to prepare Q235 / 3003 layered composite plate, comprises the following steps:

[0031] 1): Prepare a piece of Q235 steel plate 8 to be compounded with a length × width × height of 3000 × 400 × 14mm, and use a plastic forming method to prepare a corrugated surface from the surface to be compounded of the Q235 steel plate 8 to be compounded. The corrugation height H=2mm, the corrugation width B=4mm, air-cool the Q235 steel plate 8 to be compounded with the corrugated surface at 600° C. for 2 hours, and polish the corrugated surface of the Q235 steel plate 8 to be compounded with a grinder, remove oil stains and oxide films on the corrugated surface, and use acetone and Clean the corrugated surface with alcohol, let it stand and dry; select the 3003 aluminum alloy plate 9 to be compounded with a ...

Embodiment 2

[0040] Such as figure 1 , figure 2 Shown, a kind of method for preparing steel / aluminum layered composite plate by cold-hot continuous rolling with small reduction, adopting this method to prepare Q235B / 5083 layered composite plate, comprises the following steps:

[0041] 1): Prepare a piece of Q235B steel plate 8 to be compounded with a length × width × height of 6000 × 500 × 100 mm, and use a plastic forming method to prepare a corrugated surface on the surface of the Q235 B steel plate 8 to be compounded. The corrugation height H = 8mm, corrugated Width B=8mm, anneal the Q235B steel plate 8 to be compounded with the corrugated surface at 600°C for 2 hours, then air-cool, grind the corrugated surface of the Q235B steel plate 8 to be compounded with a grinder, remove the oil stain and oxide film on the corrugated surface, and use acetone Clean the corrugated surface with alcohol, let it stand and dry; select the 5083 aluminum alloy plate 9 to be compounded with a length × w...

Embodiment 3

[0049] Such as figure 1 , figure 2 Shown, a kind of method for preparing steel / aluminum layered composite plate by cold-hot rolling with small reduction, adopting this method to prepare 304 / 1060 layered composite plate, comprises the following steps:

[0050] 1): Prepare a 304 stainless steel plate 8 to be compounded with a length × width × height of 12000 × 1000 × 3mm, and use a plastic forming method to prepare a corrugated surface on the surface of the 304 stainless steel plate 8 to be compounded, and the corrugation height H = 0.3mm , Corrugation width B=1.5mm, the 304 stainless steel plate 8 to be compounded with the corrugated surface was annealed at 600° C. for 2 hours and air-cooled, and the corrugated surface of the 304 stainless steel plate 8 to be compounded was polished with a grinder, and the oil and dirt on the corrugated surface were removed. Oxide film, clean the corrugated surface with acetone and alcohol, let it stand and dry; select the 1060 industrial pur...

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Abstract

The invention belongs to the technical field of preparation of metal laminated composite plates, and particularly relates to a method and device for preparing a steel / aluminum laminated composite plate by hot continuous rolling with small rolling reduction. The device for preparing the steel / aluminum laminated composite plate by hot continuous rolling with small rolling reduction comprises a roller way, a cold rolling mill, a flat plate type induction heating device, a cooling device and a hot rolling mill, wherein the cold rolling mill, the flat plate type induction heating device, the cooling device and the hot rolling mill are sequentially arranged in the roller way from left to right to form a rolling production line. Corrugation is processed on the surface to be compounded of the steel plate to be compounded, cold rolling is carried out, and the steel side of the meshed steel / aluminum laminated composite plate formed by cold rolling is rapidly heated, so that the micro-scale solid-liquid phase phenomenon occurs on the bonding surface of the meshed steel / aluminum laminated composite plate, rapid cooling and hot rolling are carried out, and the steel / aluminum laminated compositeplate is prepared by hot continuous rolling with small rolling reduction, the interfacial space metallurgical bonding thick-specification steel / aluminum laminated composite plate can be prepared, theproduct performance is stable, and the bonding strength is high.

Description

technical field [0001] The invention belongs to the technical field of metal layered composite board preparation, and in particular relates to a method and equipment for preparing a steel / aluminum layered composite board by cold-hot continuous rolling with small reduction. Background technique [0002] Steel / aluminum layered composite panels have the advantages of high strength, toughness of steel and light weight, good corrosion resistance, good thermal and electrical conductivity of aluminum, and have been widely used in aerospace, shipbuilding, automobiles, home appliances and other fields. application. However, due to the large performance difference between the component metals of the steel / aluminum laminated composite board, the preparation of the laminated composite board is more difficult and has more problems than other laminated composite boards. In recent years, with the continuous improvement of the industrial level, the comprehensive performance requirements of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B15/00B21B45/00B21B45/02
CPCB21B1/38B21B15/00B21B15/0085B21B45/004B21B45/0203B21B2001/386
Inventor 王涛刘文文陈科李婷陈宇黄庆学
Owner TAIYUAN UNIV OF TECH
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