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Method for preparing multilayer structure composite steel plate

A multi-layer structure and clad steel plate technology, applied in metal rolling, manufacturing tools, temperature control, etc., can solve problems such as difficulties, complex production processes, and difficulty in meeting high requirements for material properties, and achieve increased bonding strength and finer Organizational, performance-enhancing effects

Inactive Publication Date: 2009-07-22
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current explosive cladding method can only produce stainless steel clad steel plates with a stainless steel clad layer thickness of 2 to 16mm and an area of ​​6000mm×1600mm. It is very difficult to produce clad plates with a stainless steel clad layer thickness of ≤2mm.
At the same time, most of the clad steel plates produced by rolling are 2 to 3 layers, which is difficult to meet the high requirements of modern technology for material performance, and the production process is complicated, and the product quality is difficult to control

Method used

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  • Method for preparing multilayer structure composite steel plate
  • Method for preparing multilayer structure composite steel plate
  • Method for preparing multilayer structure composite steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see figure 1 , the preparation method of the multilayer structure composite board of the present invention, specifically implement according to the following steps:

[0021] 1. The thickness of stainless steel is: 0.5mm~2.5mm; the thickness of carbon steel is 1.0mm~3.5mm, and the thickness of low alloy steel is 0.5mm~2.0mm.

[0022] First, anneal the stainless steel, carbon steel or low-alloy steel plate at 900°C to 1050°C, and cool with the furnace;

[0023] 2. Grinding the surface of the above stainless steel, carbon steel or low alloy steel plate to make the surface roughness Ra≤25μm;

[0024] 3. Clean the treated surface to remove oil, oxides and impurities on the surface of the plate;

[0025] 4. Stack the cleaned stainless steel plate / stainless steel plate together, or stack the stainless steel plate / carbon steel plate / stainless steel plate together in the form of a hamburger, or stack the stainless steel plate / low alloy plate / stainless steel plate in the form o...

Embodiment 2

[0032] The difference between this embodiment and Embodiments 1 and 2 is that the surface treatment of stainless steel plates, carbon steel plates or alloy steel plates first uses chemical methods to remove oxides on the surface of the plates, that is, firstly carry out alkali washing and pickling to remove scale , and rinse with water or acetone solution; then use a wire brush / feather wheel to polish the surface of the plate, and finally clean the surface with water, acetone solution, etc. and dry it. Other steps are the same as in Example 1.

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Abstract

The invention discloses a method for preparing a composite steel plate with a multilayer structure. The multilayer structure prepared by the method is stainless steel / stainless steel or stainless steel / carbon steel / stainless steel or stainless steel / ow alloy steel / stainless steel multilayer structure. The preparation method comprises the following steps: firstly, polishing the surfaces of a stainless steel plate and a carbon steel plate to reach the surface roughness degree Ra which is less than or equal to 25mu m; secondly, cleaning the treated surfaces, and removing oil stains, oxides and impurities on the surfaces of the plates; thirdly, stacking the cleaned plates together, fixing one end of the plate, polishing the plate with a definite gradient, and then placing the polished plates into an electric resistance furnace for thermal treatment; fourthly, taking out the plates and putting the plates on a rolling mill, and rolling the plates by 50 percent of pass pressing amount; fifthly, cutting checked edges and burrs at the edge parts of the rolled plates, cutting each plate into equal two parts, then repeating operations from step one to step five, and carrying out 5 to 6 passes of accumulative composite rolling; and finally putting the plates after the accumulative composite rolling into a gas protective annealing furnace for thermal treatment, cooling the plates, and taking out the plates at room temperature to obtain the composite steel plate with the multilayer structure.

Description

technical field [0001] The present invention relates to the preparation of composite materials, in particular to a method for preparing a composite steel plate with a multi-layer structure. The structure of the composite steel plate prepared by the method is stainless steel / stainless steel, or stainless steel / carbon steel / stainless steel, or stainless steel / low alloy Steel / stainless steel. Background technique [0002] Stainless steel material is a kind of metal material with excellent performance, which is widely used in electronics, aerospace, aviation, chemical industry, automobile, machinery and other industrial fields. Stainless steel plate is an important product form, accounting for about 40-60% of the total output, but In recent years, the shortage of resources such as chromium and nickel will seriously affect the supply of stainless steel. Therefore, in order to solve the shortage caused by the shortage of raw materials and realize the sustainable development strate...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B37/74B21B37/58B21B47/00C21D9/00C21D11/00
Inventor 张兵袁守谦王超余海峰黄俊霞张昧茗
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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