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Corrosion-resistant and wear-resistant composite metal plate

A composite metal plate, composite metal technology, applied in metal processing equipment, auxiliary welding equipment, welding equipment and other directions, can solve problems such as discomfort and wear resistance, and achieve good sealing effect, good corrosion resistance, and improved service life. Effect

Inactive Publication Date: 2013-07-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the existence of transverse microcracks on the surface of the existing surfacing wear-resistant composite plate, which is not suitable for the anti-wear problem under corrosive working conditions, the purpose of the present invention is to provide a corrosion-resistant and wear-resistant composite metal plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Prepare surfacing welding flux-cored wire, the diameter of the wire is Ф2.8mm, and the steel strip is SPCC with a thickness of 0.35mm. 2.5%, Si 2.5%, Mn 5.0%, Mo 3.0%, V 1.5%, Ti 0.6%, Al 1.5%, Mg 1.5%, and the rest are Fe and impurities that do not affect the performance of the powder.

[0028] (2) Select Q235 low-carbon steel plate as the substrate, the size of the substrate is 1m×2m, and the thickness is 8mm. The four sides of the substrate are rigidly fixed on the welding platform by mechanical clamping.

[0029] (3) For single gun surfacing welding, the first weld bead is located in the center of the substrate width, and the surfacing welding is along the length direction of the substrate. The welding torch does not swing horizontally during surfacing, and the width of the weld bead is 20mm. After the surfacing of the first welding pass is completed, the other welding passes are surfacing alternately on both sides of the first welding pass, and the overlappin...

Embodiment 2

[0034] (1) Prepare surfacing flux-cored welding wire. The diameter of the welding wire is Ф3.2mm, and the steel strip is SPCC with a thickness of 0.35mm. 1.5%, Mn is 3.0%, Mo is 3.0%, V is 1.5%, Ti is 0.2%, Al is 2.5%, Mg is 2.0%, and the rest is Fe and impurities that do not affect the performance of the powder.

[0035] (2) Select Q345 steel plate as the substrate, the size of the substrate is 1m×2m, and the thickness is 12mm. The four sides of the substrate are rigidly fixed on the welding platform by mechanical clamping.

[0036] (3) For single gun surfacing welding, the first weld bead is located in the center of the substrate width, and the surfacing welding is along the length direction of the substrate. During surfacing welding, the welding torch swings laterally, the swing amplitude of the welding torch swing is 10mm, the swing frequency is 20 times / min, and the weld bead width is 40mm. After the surfacing of the first bead is completed, the other welds shall be sur...

Embodiment 3

[0041] (1) Prepare surfacing welding flux-cored wire, the diameter of the wire is Ф3.2mm, and the steel strip is SPCC with a thickness of 0.35mm. 2.5%, Si is 2.5%, Mn is 5.0%, Mo is 4.0%, V is 1.5%, Ti is 1.2%, Al is 2.5%, Mg is 2.0%, and the rest is Fe and impurities that do not affect the performance of the powder.

[0042] (2) Select Q345 steel plate as the substrate, the size of the substrate is 1m×2m, and the thickness is 20mm. The four sides of the substrate are rigidly fixed on the welding platform by mechanical clamping.

[0043] (3) For single gun surfacing welding, the first weld bead is located in the center of the substrate width, and the surfacing welding is along the length direction of the substrate. During surfacing welding, the welding torch swings laterally, the swing amplitude of the welding torch is 20mm, the swing frequency is 20 times / min, and the weld bead width is 50mm. After the surfacing of the first bead is completed, the other welds shall be surfa...

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Abstract

The invention discloses a corrosion-resistant and wear-resistant composite metal plate. A low-carbon steel plate or a low-alloy steel plate is taken as a base plate, a special corrosion-resistant and wear-resistant bead weld flux-cored wire is arranged at a bead weld composite layer on the surface of the base plate to obtain a corrosion-resistant and wear-resistant composite metal plate blank, and flaws on the surface of the leveled composite metal plate blank is sealed by a prepared special gap seal agent to obtain the corrosion-resistant and wear-resistant composite metal plate. The composite metal plate disclosed by the invention is few in transverse flaws, and high in bonding force between the bead weld layer and the base plate; and the gap seal agent effectively leaks into the transverse flaws, so that the corrosion resistance of the composite metal plate can be observably improved, and the service life of the composite metal plate under the corrosion work condition can be observably prolonged.

Description

technical field [0001] The invention relates to a composite material, in particular to a corrosion-resistant and wear-resistant composite metal plate. Background technique [0002] Metal wear is one of the main reasons for the failure of mechanical parts, and the loss is staggering. According to incomplete statistics of my country's metallurgy, coal, electric power and other industries, the annual wear loss is as high as 2 billion yuan. Therefore, the research and development of high-performance wear-resistant materials are valued by material workers. Cast wear-resistant parts and surfacing wear-resistant parts are commonly used wear-resistant materials in the industrial field. [0003] Cast wear-resistant parts are manufactured by casting technology. Generally, the overall composition is uniform. For example, high manganese steel, white cast iron, chromium-based anti-wear cast iron, etc. have better anti-wear properties. However, these materials also have some shortcoming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K35/24B23K37/00
Inventor 孙俊生李宁洋栾守成孙逸群
Owner SHANDONG UNIV
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