Method and device for rolling metal composite strip

A metal clad plate and strip technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of continuous online production of metal clad plates and strips, interface oxidation, affecting the composite effect, etc., and achieve the effect of atomic diffusion The effect of obvious, high interface bonding strength and improving production efficiency

Inactive Publication Date: 2017-07-18
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practice, the hot-rolling composite method is often used, but the oxidation of the interface is serious during the hot-rolling heating process, and a large number of oxides (such as: iron oxide scale) appear, which affects the composite effect. This is also a problem that researchers in this field pay more attention to.
In order to reduce surface oxidation, methods such as interface protection or vacuum rolling are mostly used at present, but this method is complicated to operate, requires the addition of special equipment and is not conducive to the realization of online continuous production
[0004] In summary, the rolling method of metal clad strips in the prior art cannot achieve online continuous production of metal clad strips while reducing interface oxidation

Method used

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  • Method and device for rolling metal composite strip
  • Method and device for rolling metal composite strip

Examples

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Effect test

Embodiment 1

[0059] This embodiment provides a method for rolling metal clad strips, such as figure 1 shown, including:

[0060] Step S101: cleaning the upper and lower surfaces of the two steel strips 33 to be compounded.

[0061] specific items, such as figure 2 As shown, the two steel strips 33 to be compounded include: a cladding steel strip located above and a base strip steel located below. For example, the cladding strip is a stainless steel coil with a thickness of 15 mm, a width of 1500 mm, and a length of 1500 meters, and the base strip is a common carbon steel Q345 coil with a thickness of 15 mm, a width of 1500 mm, and a length of 1500 meters.

[0062] Specifically, the step S101 includes: placing two steel coils equal in length and width to be compounded on two uncoilers 1 for uncoiling, respectively deriving two steel strips 33, and using 3 straightening machines to The two steel strips 33 are leveled, and then the oxides (that is: scale) on the upper and lower surfaces o...

Embodiment 2

[0074] Based on the same inventive concept, the present invention provides a device for rolling metal composite strips, comprising:

[0075] A cleaning mechanism is used to clean the upper and lower surfaces of the two steel strips to be compounded;

[0076] The preheating furnace 12 is connected with the upsetting press 7, and is used for preheating the two steel strips 33;

[0077] The heating furnace 13 is connected with the preheating furnace 12, and is used to heat two steel strips 33, wherein coke is laid under the hearth rollers of the preheating furnace and the heating furnace;

[0078] Reduction furnace 16, connected with heating furnace 13, is used to carry out reduction treatment to two steel strips 33, to remove the oxide (that is: iron oxide scale) at the interface to be compounded between two steel strips 33;

[0079] The reduction heating furnace 22 is connected with the reduction furnace 16, and is used for rapidly heating the two steel strips 33;

[0080] Th...

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Abstract

The invention discloses a method and device for rolling metal composite strips, wherein the method comprises: cleaning the upper surface and the lower surface of two steel strips to be compounded; heating the two steel strips; The reducing gas is used to reduce the two steel strips to remove the oxides at the interface to be compounded between the two steel strips; the two steel strips are rolled to obtain metal composite strips; the metal composite strips are Cool down. The invention adopts the reducing gas to completely reduce and roll the oxides on the surface of the strip, so that the strip can be efficiently and continuously produced by composite rolling.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method and device for rolling metal composite strips. Background technique [0002] Metal composite strip is a new type of material compounded by two or more different metal materials through a special process. Compared with a single metal component, the metal composite strip after rational design and combination combines the respective advantages of the metal components, and can obtain mechanical, physical and chemical properties that a single metal does not have. At present, metal clad strips mainly include stainless steel-carbon steel clad plates, variety steel-carbon steel clad plates, non-ferrous metals and alloys-carbon steel clad plates, etc. At present, metal composite strips have been widely used in aerospace, petroleum, chemical industry, metallurgy, machinery, automobile, ship, construction and other fields. [0003] Due to the large performance difference betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38B21B45/06B21B45/08
Inventor 汪荣韩斌陈丽娟汪水泽黄全伟
Owner 武汉钢铁有限公司
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