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A kind of strong and tough flux-cored welding wire and its preparation method

A flux-cored welding wire, strong and tough technology, which is applied in the field of strong and tough flux-cored welding wire and its preparation, can solve problems such as insufficient toughness, achieve the effects of not being easily deformed and broken, improving the welding process, and stabilizing high-temperature performance

Active Publication Date: 2022-06-07
江苏东南焊材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defect of insufficient toughness of existing strong and tough flux-cored welding wire, the application provides a kind of strong and tough flux-cored welding wire and its preparation method, adopting the following technical scheme:

Method used

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  • A kind of strong and tough flux-cored welding wire and its preparation method
  • A kind of strong and tough flux-cored welding wire and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0035]Weigh 4.5kg of absolute ethanol, 0.6kg of butyl titanate, 1kg of innumerable ethanol, 0.6kg of 5% acetic acid solution by mass and 1kg of deionized water and place them in a stirring device, stir and mix and collect the mixed sol liquid. The molar ratio of element and titanium element is 3:8. Add 15% ammonium metavanadate solution by mass to 6kg mixed sol solution, stir and mix and let stand for 6h, collect and let stand the mixed solution and air dry naturally, then grind it at 125 Heat preservation treatment at ℃ for 6h, stand to cool to room temperature, grind and sieve to prepare 150 μm vanadium-titanium modifier 1.

preparation example 2

[0037] Weigh 4.7kg of absolute ethanol, 0.7kg of butyl titanate, 1.2kg of innumerable ethanol, 0.7kg of 5% acetic acid solution by mass and 1.2kg of deionized water, respectively, and place them in a stirring device, stir and mix and collect the mixed sol solution. According to the molar ratio of vanadium element and titanium element being 3:8, add 15% ammonium metavanadate solution by mass to 7kg mixed sol solution, stir and mix and let stand for 7 hours, collect and let stand the mixed solution and air dry naturally, and then grind it again. Incubate treatment at 134°C for 7 hours, stand to cool to room temperature, grind and sieve to prepare 225 μm vanadium-titanium modifier 1.

preparation example 3

[0039] Weigh 5.0kg of absolute ethanol, 0.8kg of butyl titanate, 1.5kg of innumerable ethanol, 0.8kg of 5% acetic acid solution by mass and 1.5kg of deionized water, respectively, and place them in a stirring device, stir and mix and collect the mixed sol solution. According to the molar ratio of vanadium element and titanium element being 3:8, add 15% ammonium metavanadate solution by mass to 8kg mixed sol solution, stir and mix and let stand for 8 hours, collect and let stand the mixed solution and air dry naturally, and then grind it again. Incubate treatment at 150°C for 8 hours, stand to cool to room temperature, grind and sieve to prepare 300 μm vanadium-titanium modifier 1.

[0040] Welding wire coating preparation

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Abstract

This application relates to the field of welding materials, and specifically discloses a strong and tough flux-cored welding wire and a preparation method thereof. The tough and tough flux-cored welding wire includes a welding wire coating layer and a welding wire flux core composition, and the welding wire coating layer is provided with An accommodating cavity penetrating along its length, the accommodating cavity is provided with a welding wire flux core composition, and the welding wire flux core composition includes the following components by weight: 45-58 parts of ferrochrome, 6-10 parts of ferromanganese, 10 parts by weight ~15 parts of ferrosilicon, 6~8 parts of ferromolybdenum, 1~3 parts of graphite and 1~2 parts of additives; this application screens the components inside the flux cored wire and optimizes the ratio of each component to improve the The structure of the powder filled inside the cored wire can effectively remove the sulfur in the welding alloy through the compounding and addition of ferrosilicon and ferromanganese, and then improve the welding process and add carbon to the surfacing alloy to form various alloys The carbide hard phase strengthens the toughness and wear resistance of the surfacing alloy matrix.

Description

technical field [0001] The present application relates to the field of welding materials, and more particularly, to a strong and tough flux-cored welding wire and a preparation method thereof. Background technique [0002] In the welding process, the welding manufacturability of the welding material plays a crucial role in the quality of the welded joint. In the welding process of flux-cored wire, the welding process is not only affected by the composition of the powder alloy, but also the surface finish of the welding wire, the size error of the welding wire, the surface rust resistance and the uniformity of the powder filling will also determine the welding quality. Electrode, solid wire and flux-cored wire are the longest used materials in surfacing welding. [0003] Compared with ordinary welding wire, the powder composition of metal powder-cored flux-cored welding wire can be adjusted freely. In different types and functions of flux-cored welding wire, the selection of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/30B23K35/3053B23K35/40
Inventor 潘秋俊潘伟
Owner 江苏东南焊材有限公司
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