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Cloth-shaped nickel-based brazing material and preparation method and application thereof

A brazing material, nickel-based technology, applied in the direction of welding/cutting media/materials, welding equipment, welding media, etc., can solve the problems of limited hardness, nickel-based brazing material is not easy to form, achieve good anti-corrosion performance, and expand the scope of use Effect

Inactive Publication Date: 2017-03-29
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, in order to solve the problem that the nickel-based brazing material is not easy to form and has limited hardness, a kind of cloth-shaped nickel-based brazing material and its preparation method and application are provided to solve the problem of nickel-based brazing material Forming problems, and can increase the hardness of the brazing coating to meet the requirements of high wear resistance

Method used

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  • Cloth-shaped nickel-based brazing material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Element mass percentage of nickel-based alloy powder

[0027] Carbon content: 0.2%

[0028] Silicon content: 3.5%

[0029] Boron content: 2.2%

[0030] Chromium content: 7.5%

[0031] Iron content: 3%

[0032] Nickel content: all remaining

[0033] The oxygen content of the nickel-based alloy powder is 300 ppm, the particle size is 200 mesh, and the weight is 350 g.

[0034] The cemented carbide powder is 50 g of 250 mesh WC (tungsten carbide) powder and 50 g of 200 mesh TiC (titanium carbide) powder.

[0035] Choose 50g polyethylene glycol PEG-200 as binder.

[0036] First, use a ball mill to mix the nickel-based alloy powder and the cemented carbide powder evenly, then add the evenly mixed powder into the binder and use ultrasonic dispersion to disperse evenly, and then carry out the system of uniformly dispersed powder and binder Coating and fixing between two layers of silicone oil paper, applying pressure to make the thickness 2mm, and molding and curing at ...

Embodiment 2

[0040] Element mass percentage of nickel-based alloy powder

[0041] Carbon content: 0.85%

[0042] Silicon content: 4.5%

[0043] Boron content: 3.4%

[0044] Chromium content: 16%

[0045] Iron content: 8%

[0046] Nickel content: all remaining

[0047] The oxygen content of the nickel-based alloy powder is 200 ppm, the particle size is 250 mesh, and the weight is 300 g.

[0048] The cemented carbide powder is 150 g of 250 mesh WC (tungsten carbide) powder.

[0049] Bisphenol A type epoxy resin E-44, average epoxy value 0.44, 40g; low molecular weight polyamide curing agent 651, amine value 380-420, 10g.

[0050] First, use a ball mill to mix the nickel-based alloy powder and the cemented carbide powder evenly, then add the evenly mixed powder into the binder and use ultrasonic dispersion to disperse evenly, and then carry out the system of uniformly dispersed powder and binder Coating and fixing between two layers of silicone oil paper, applying pressure to make the th...

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Abstract

The invention discloses a cloth-shaped nickel-based brazing material and a preparation method and application thereof. The cloth-shaped nickel-based brazing material is formed by mixing nickel-based alloy powder, hard alloy powder and an organic forming agent and is macroscopically shaped like cloth. During use, the cloth-shaped nickel-based brazing material can be cut for use and can be cut in any shape according to the requirement of a brazing-coated workpiece; and the thickness of the cloth-shaped nickel-based brazing material can be adjusted through a calendaring process, so that the defect that nickel-based brazing powder cannot be shaped is avoided, and meanwhile the hardness of a brazing coating is improved.

Description

technical field [0001] The present invention relates to the field of welding technology, and more specifically, relates to welding materials and preparation methods thereof. Background technique [0002] Vacuum brazing is a process method in which a new layer of alloy is added to the surface of the workpiece by vacuum brazing to change the original properties of the workpiece material. It is a special form of vacuum brazing, which combines brazing and spraying (welding) Together, it has certain technological advantages. Due to the lack of brazing materials at present, the use of this process is limited. At present, the vacuum brazing materials include silver-based, copper-based, nickel-based, cobalt-based, palladium-based and other materials, among which silver-based and palladium-based metal silver and palladium Belonging to precious metal materials, the overall price of the material will be high, and it is rarely used for general workpieces; copper-based brazing materials...

Claims

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Application Information

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IPC IPC(8): B23K35/30
CPCB23K35/304B23K35/0222
Inventor 高莹娄立艳韩敬华陈昌亮
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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