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Ultra-low carbon Ni-Cr-Mo5923hMo steel alloy explosion welding high corrosion resistance composite material

A cr-ni-mo5923hmo, explosive welding technology, which is applied in the fields of molybdenum alloy steel, chromium and nickel, can solve the problem of explosive welding of Cr-Ni-Mo alloy composite materials that has not been reported in literature and does not involve Cr-Ni-Mo alloy steel. Technology and other issues to achieve the effect of reducing the cost of explosive welding, high bonding strength, and weakening shock waves and noise

Active Publication Date: 2008-10-29
JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the book "Principles and Applications of Explosive Welding and Explosive Composite Materials" published in April 2007, in Section 3.2 of the second part, it respectively expounds the related aspects of nickel-stainless steel, nickel-titanium, nickel-steel, molybdenum-copper, etc. Explosive welding process and technology for a single steel grade with Cr-Ni-Mo elements, but does not involve explosive welding technology for Cr-Ni-Mo alloy steel
[0005] So far, there have been no literature reports on Cr-Ni-Mo alloy composites

Method used

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  • Ultra-low carbon Ni-Cr-Mo5923hMo steel alloy explosion welding high corrosion resistance composite material
  • Ultra-low carbon Ni-Cr-Mo5923hMo steel alloy explosion welding high corrosion resistance composite material

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Embodiment 1

[0019] Industrial scale production of ultra-low carbon Cr-Ni-Mo5923hMo alloy steel explosion welding high corrosion resistance composite material, the production method is as follows:

[0020] 1. Pretreatment process before explosion: 1. Grinding and polishing the bonding interface with grinding wheel and cloth wheel to remove the oxide layer on the surface to achieve the purpose of flatness, lightness and cleanliness. 2. Determination of the size of base, doubler board and drug distribution; the doubler board is 40mm longer than the four sides of the base plate, and the size of the drug distribution is the same as that of the doubler board. 3. Before installing the base and double board, wash the two joint surfaces with acetone to remove dust and oil stains on the surface.

[0021] 2. Explosive welding composite process: select powdered ammonium oil emulsion explosive with low detonation velocity, and add powdered industrial salt accounting for 25% of the total mass, 3-4% per...

Embodiment 2

[0025] Industrial scale production of ultra-low carbon Cr-Ni-Mo5923hMo alloy steel explosion welding high corrosion resistance composite material, the production method is as follows:

[0026] 1. Pretreatment process before explosion: 1. Grinding and polishing the bonding interface with grinding wheel and cloth wheel to remove the oxide layer on the surface to achieve the purpose of flatness, lightness and cleanliness. 2. Determination of the size of the base, compound board and drug distribution; the compound board is 20mm longer than the four sides of the base plate, and the drug distribution size is the same as that of the compound board. 3. Before installing the base and double board, wash the two joint surfaces with acetone to remove dust and oil stains on the surface.

[0027] 2. Explosive welding complex process: select powdered ammonium oil emulsion explosive with low detonation velocity, and add powdered industrial salt accounting for 30% of the total mass, 3-4% perli...

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Abstract

The invention relates to a novel compound material which is formed by an explosion welding technique and a common low alloy steel Q345B as well as by adopting the ultra-low-carbon Ni-Cr-Mo 5923hMo alloy steel as a high anti-corrosion layer. The manufacture method of the invention includes the techniques of surface pre-treatment, explosion welding compounding and annealing for removing a stress. The structure of the invention is that the common low alloy steel is combined with the metallurgy of a 5923hMo anti-corrosion steel multiple layer on the common low alloy steel. The compound material of the invention has the advantages that the multiple layer has excellent anti-corrosion property to most corrosion properties and extremely excellent properties of pit corrosion resistance, crevice corrosion resistance and stress corrosion cracking resistance caused by chlorides; while a basic layer plate has excellent mechanical property to fully play the excellent physical and chemical properties of two metals. The novel compound material can not have the phenomena of cracking or separation on the interface between the basic layer and the composite layer after being processed by the hot and cold techniques such as annealing, leveling and cutting, etc. Analyzed by a physical test and a chemical test, the property index of the novel compound material is completely in accordance with the standard of JB4748-2002 and can meet the property requirements of a device to special materials under execrable working conditions.

Description

Technical field: [0001] The invention relates to a high-corrosion-resistant composite material which is resistant to high temperature and high pressure and can be used in various harsh corrosion environments in industries such as petroleum, chemical industry, pharmacy, and chlor-alkali, and belongs to the technical field of nickel, chromium, and molybdenum alloy steel. Background technique: [0002] In 2001 (December) Welding Magazine, the article "Influence of H1Cr12Ni13 transition layer welding wire on the welding performance of incoloy825 composite steel plate" expounds the influence characteristics of this Cr-Ni-Mo composite steel plate welding wire on the transition layer. This article does not involve explosive welding composite technology. [0003] In the book "Principles and Applications of Explosive Welding and Explosive Composite Materials" published in April 2007, in Section 3.2 of the second part, it respectively expounds the related aspects of nickel-stainless st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/24C21D1/30
Inventor 冯建史和庆史和生孙权
Owner JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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