Stainless steel, carbon steel composite plate and preparation method thereof

A technology for composite plates and stainless steel plates, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problem of poor plate shape, less research on intergranular corrosion performance, and affect the corrosion resistance and use of composite plates. effect and other issues, to reduce the duration, improve the ability to resist intergranular corrosion, and reduce the effect of intergranular corrosion

Active Publication Date: 2020-01-07
宁波市博祥新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many studies on metal composite materials, such as research on the relatively poor shear strength, bonding rate and plate shape after heat treatment, etc., to obtain composite materials with better performance; however, the current materials of these materials Most of the research is considered from the performance that the material's use environment must meet, but there are few studies on the intergranular corrosion performance between the layers of this composite plate, and in the entire production process of the composite material, if the intergranular corrosion performance is not controlled Well, it will greatly affect the corrosion resistance and use effect of the composite plate

Method used

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  • Stainless steel, carbon steel composite plate and preparation method thereof
  • Stainless steel, carbon steel composite plate and preparation method thereof
  • Stainless steel, carbon steel composite plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A stainless steel, carbon steel composite plate, the composite plate comprises carbon steel plate, stainless steel plate, stainless steel plate and carbon steel plate which are laminated sequentially; the metal component content of the carbon steel plate is: C0.18%, Si 0.25%, Mn0.8%, S0.02-0.025%, P 0.024%, Cr 0.05%, Nb0.04%, Al0.05%, Ni, 0.50%, and the balance is Fe; the metal component content of the stainless steel plate is : C 0.070%, Si 0.70%, Mn 1.6%, S 0.008%, P 0.04%, Cr19%, Ni12%, Nb0.03%, Al0.12%, Cu.035%, Ti 0.18-0.20%, balance For Fe.

[0025] Method of preparation:

[0026] (1) Symmetric billet assembly: the smelted carbon steel plate and stainless steel plate are superimposed and compounded in the order of carbon steel plate, stainless steel plate, stainless steel plate, and carbon steel plate; and the surfaces of the carbon steel plate and stainless steel plate that are in contact with each other are polished to expose the metal layer. Coat the surface ...

Embodiment 2

[0032]A stainless steel, carbon steel composite plate, the composite plate comprises carbon steel plate, stainless steel plate, stainless steel plate and carbon steel plate which are laminated in sequence; the metal component content of the carbon steel plate is: 0.16%, Si 0.22%, Mn0. 6%, S0.022%, P0.024%, Cr 0.045%, Nb0.03%, Al0.045%, Ni0.45%, and the balance is Fe; the metal component content of the stainless steel plate is: C 0.0. 072%, Si 0.70%, Mn 1.5%, S0.006%, P 0.036%, Cr18%, Ni8.5%, Nb0.03%, Al0.12%, Cu0.35%, Ti 0.19%, the balance is Fe; the thickness of the steel plate is 30mm, and the thickness of the stainless steel plate is 10mm.

[0033] The preparation method of the above-mentioned stainless steel and carbon steel composite plate, the preparation steps include:

[0034] (1) Symmetric billet assembly: the smelted carbon steel plate and stainless steel plate are superimposed and compounded in the order of carbon steel plate, stainless steel plate, stainless steel...

Embodiment 3

[0040] A stainless steel, carbon steel composite plate, the composite plate comprises a carbon steel plate, a stainless steel plate, a stainless steel plate and a carbon steel plate that are stacked in sequence; the metal component content of the carbon steel plate is: C0.20%, Si 0.30%, Mn0.8%, S0.023%, P0.024%, Cr 0.055%, Nb0.04%, Al0.055%, Ni0.55%, the balance is Fe; the metal component content of described stainless steel plate is: C, 0.074%, Si 0.70%, Mn 1.7%, S 0.008%, P 0.038%, Cr18.5%, Ni9%, Nb0.04%, Al0.13%, Cu0.40%, Ti0.19%, balance For Fe. The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a stainless-steel and carbon-steel composite plate and a preparation method thereof. The stainless-steel and carbon-steel composite board is manufactured by stacking and compositing of a carbon-steel plate, a stainless-steel plate, a stainless-steel plate and a carbon-steel plate in sequence, wherein the carbon-steel plate comprises the following metal components in percentby weight: 0.15-0.20% of C, 0.19-0.35% of Si, 0.5-1.0% of Mn, 0.02-0.025% of S, 0.023-0.025% of P, 0.04-0.06% of Cr, 0.02-0.05% of Nb, 0.04-0.06% of Al, 0.40-0.60% of Ni and the balance of Fe; the stainless-steel plate comprises the following metal components in percent by weight: 0.07-0.075% of C, 0.65-0.75% of Si, 1.4-1.8% of Mn, 0.003-0.01% of S, 0.035-0.04% of P, 18-20% of Cr, 8.5-13% of Ni,0.02-0.05% of Nb, 0.10-0.15% of Al, 0.30-0.45% of Cu, 0.18-0.20% of Ti and the balance of Fe. The stainless-steel and carbon-steel composite plate and the preparation method disclosed by the inventionhave the beneficial effects that the corrosion resistance is good and the phenomenon of intercrystalline corrosion can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of composite plates of metal materials, in particular to a stainless steel and carbon steel composite plate and a preparation method thereof. [0002] technical background [0003] Metal composite panels are metal materials that have been used more and more in recent years, such as in the field of nuclear reactor cooling systems, in the field of ships, and in the fields of metallurgy and chemical petroleum, etc. By combining stainless steel and carbon steel, this composite material obtains the excellent performance of the two materials, has good corrosion resistance and ideal mechanical strength of the base material, and can also save costs and other advantages. [0004] At present, there are many studies on metal composite materials, such as research on the relatively poor shear strength, bonding rate and plate shape after heat treatment, etc., to obtain composite materials with better performance; however, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/18C22C38/02C22C38/04C22C38/06C22C38/48C22C38/42C22C38/50B21C37/02
CPCB21C37/02B32B15/011C22C38/02C22C38/04C22C38/06C22C38/42C22C38/48C22C38/50
Inventor 梅海滨
Owner 宁波市博祥新材料科技有限公司
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