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Laser cladding alloy powder enhanced with oxide particles and preparation method thereof

A technology of oxide particles and alloy powders, which is applied in the fields of laser cladding high wear-resistant parts, oxide particles enhanced laser cladding alloy powders and their preparation, laser cladding alloy powders and their preparations, and can solve the problem of storage , Transportation and use are prone to segregation, no special combination powder for laser cladding has been seen, and commercial market supply cannot be provided, etc., to achieve excellent laser cladding process performance, no impurities, and high hardness.

Inactive Publication Date: 2013-04-03
江苏新亚特钢锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The added hard particles are larger and different in density from the matrix metal, and the distribution of the particles in the cladding layer is often uneven, usually showing a gradient distribution; the wettability, stability, and expansion coefficient of the added particle material and the matrix and chemical reactivity all lead to the inhomogeneity of the structure and performance of the cladding layer
Moreover, the prepared combined powder is prone to segregation during storage, transportation and use due to the large difference in the specific gravity of each component.
Commercial market supply is not possible, and there is no commercial sale of special powder for particle-enhanced laser cladding in the market
Due to the above reasons, there is no special combination powder for laser cladding, which restricts the application of laser cladding in the field of high wear-resistant conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An oxide particle-reinforced laser cladding alloy powder and a preparation method thereof. The oxide particle-reinforced laser cladding alloy powder is composed of a matrix alloy powder, oxide hard particles and a binder, and the ratio is: 60% Base alloy powder, 37% Al 2 o 3 , 3% of the phenolic resin binder is prepared into a combined powder, and 3% of the phenolic resin binder is prepared into a combined powder; wherein the chemical composition and mass percentage of the matrix alloy are;

[0049] 0.5%C, 2.0%Si, 2.5%B, 20%Cr, 9%Cu, 6%W, 6%Mo, 13%Fe, 0.1%MgO, 0.5%CaF 2 , 0.2% CeO 2 , 0.2%Y 3 o 2 , 0.2% La 2 o 3 , Ni balance.

[0050] Its manufacturing process steps:

[0051] Preparation of matrix alloy powder→adding oxide particles→adding binder→stirring ball milling→combining powder→drying→crushing→sieving; the specific process steps are as follows:

[0052] (1) Preparation of matrix alloy

[0053] The process flow of matrix alloy powder preparation is: batc...

Embodiment 2

[0071] An oxide particle-reinforced laser cladding alloy powder and a preparation method thereof. The oxide particle-reinforced laser cladding alloy powder is composed of a matrix alloy powder, carbide hard particles and a binder, and the ratio is: 68% Base alloy powder, 30% ZrO 2 , 2% epoxy resin binder is prepared into combined powder; wherein the chemical composition and mass percentage of the matrix alloy are;

[0072] 0.6%C, 3%Si, 3%B, 25%Cr, 10Cu%, 4%W, 8%Mo, 15%Fe, 0.15%MgO, 0.9%CaF 2 , 0.25% CeO 2 , 0.25%Y 3 o 2 , 0.25% La 2 o 3 , Ni balance.

[0073] (2) Add oxide particles

[0074] The selected particle size range is -300 purpose commercially available ZrO 2 Powder as reinforced hard particles;

[0075] (3) Add binder

[0076] Use thermosetting epoxy resin as binder, add methanol solvent to dissolve it into a resin solution;

[0077] (4) Stirring ball mill

[0078] The prepared matrix alloy powder and ZrO 2 After the powder and binder are configured accord...

Embodiment 3

[0081] A kind of oxide particle enhanced light cladding high toughness wear-resistant nickel-based alloy powder and its preparation method, the oxide particle enhanced laser cladding high wear-resistant nickel-based alloy powder is composed of matrix alloy powder and oxide hard particles and adhesive It is composed of binder, and its ratio is: 68% matrix alloy powder, 30% Al 2 o 3 and ZrO 2 The formed mixture powder is made, and 2% epoxy resin binder is prepared into combined powder; wherein the chemical composition and mass percentage of the matrix alloy are;

[0082] 0.6%C, 2.5%Si, 2.0%B, 27%Cr, 8%Cu, 5%W, 5%Mo, 10%Fe, 0.2%MgO, 1.5%CaF 2 , 0.3% CeO 2 , 0.3%Y 3 o 2 , 0.3% La 2 o 3 , Ni balance.

[0083] (2) Add oxide particles

[0084] The selected particle size range is -200 mesh commercially available 50% Al 2 o 3 and 50% ZrO 2 Composition of mixed powder as reinforcing particles;

[0085] (3) Add binder

[0086] Water glass is used as binder, and methanol sol...

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Abstract

The invention provides laser cladding alloy powder enhanced with oxide particles and a preparation method thereof. The laser cladding alloy powder enhanced with the oxide particles is characterized in that the laser cladding alloy powder enhanced with the oxide particles consists of a matrix alloy powder, the oxide particles and a binder, wherein the proportion is 50-98% of the matrix alloy powder, 1-45% of WC or TiC or a mixture powder of WC and TiC and 1-45% of a combined mixture powder of more than two or one of Al2O3, Cr3C2 and ZrO2. The preparation technological steps of the laser cladding alloy powder enhanced with the oxide particles are preparing the matrix alloy powder, adding the oxide particles, adding the binder, stirring and ball-milling, combining the powder, drying, crushing and sieving. The laser cladding alloy powder enhanced with the oxide particles provided by the invention not only has higher hardness and flexibility, but also has excellent abrasion resistance and corrosion resistance, thereby being quite applicable for the laser cladding of parts under the working conditions of high impact and high abrasion resistance; and moreover, the segregation generated due to great disparity between the proportions of all components can be effectively prevented during the storage, transportation and use processes.

Description

technical field [0001] The invention belongs to the technical field of nickel-based alloys, and relates to a laser cladding alloy powder and a preparation method thereof, in particular to an oxide particle-enhanced laser cladding alloy powder and a preparation method thereof. The oxide particle-enhanced laser cladding alloy powder It is suitable for laser cladding parts with high wear resistance. Background technique [0002] In modern daily life and industrial production, wear and corrosion of metal materials will appear in various fields. It is one of the two main ways to damage mechanical parts and engineering components. Corrosion will lead to a large amount of consumption of mechanical parts, while wear It is one of the important reasons leading to the failure of mechanical parts. While they consume a lot of metal materials, they also waste a lot of resources, accounting for a very large proportion of economic losses. [0003] The failure of engineering components cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/08C22C19/05
Inventor 丁刚丁家伟耿德英谢宗翰王爱华郭洪才印杰孙健唐华平
Owner 江苏新亚特钢锻造有限公司
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