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3d printed ternary boride mo 2 nib 2 Alloy powder and its production process

A ternary boride and alloy powder technology, which is applied in the field of 3D printing materials, can solve problems such as alloy pollution, viscous smelting liquid, and low powder yield, and achieve broad application prospects, small friction coefficient, and improved wear resistance. Effect

Active Publication Date: 2021-11-30
广东博杰特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Publication No. "CN106868377A", the invention patent named "High-strength molybdenum-nickel-boron ternary boride material and its preparation method" discloses a ternary boride Mo 2 NiB 2 The preparation of vacuum melting gas atomized powder, but its powder particle size distribution, powder shape and other properties can not meet the relevant technical requirements of 3D printing powder, especially because the ternary boride Mo 2 NiB 2 The smelting temperature is 150-300°C higher than that of nickel-based and cobalt-based alloys. Dry pots such as alumina and magnesia are very likely to cause alloy pollution. Due to the ternary boride Mo 2 NiB 2 The proportion of hard phase is relatively high, and the smelting liquid is relatively viscous, resulting in frequent plugging of nozzles during atomization, resulting in very low powder output rate, and it is difficult to form low-cost large-scale production

Method used

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  • 3d printed ternary boride mo <sub>2</sub> nib <sub>2</sub> Alloy powder and its production process
  • 3d printed ternary boride mo <sub>2</sub> nib <sub>2</sub> Alloy powder and its production process
  • 3d printed ternary boride mo <sub>2</sub> nib <sub>2</sub> Alloy powder and its production process

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1: A 3D printing ternary boride Mo provided in this example 2 NiB 2 Alloy powder and its production process, see figure 1 , the process steps are as follows:

[0033] (1) Ingredients: wet ball milling has more obvious advantages in terms of particle size distribution, anti-oxidation of powder, segregation and agglomeration of powder for preparing powder, so wet ball milling process is preferably used in this embodiment. Prepare the materials and their mass percentages as follows: B 3.3%, Mo 50%, Cr 10%, C 2%, V 0.5%, Nb 2%, W 0.5%, Ce 2%, Mn 4%, Ta0.3%, Ti 0.6%, binder 3%, Ni23%;

[0034] (2) Rod making: mix raw materials B, Mo, Cr, C, V, Nb, W, Ce, Mn, Ta, Ti, Ni and binder according to the formula. The binder is preferably paraffin. In other embodiments, the binder can be selected from PEG, rubber or resin, etc.; mixed with any one or more solvents such as absolute ethanol or methanol, acetone, n-heptane, n-hexane, etc. The azeotropic solvent is used as t...

Embodiment 2

[0041] Embodiment 2: A kind of 3D printing ternary boride Mo provided by this embodiment 2 NiB 2 Alloy powder and its production process, which are basically the same as Example 1, the difference is that each element and its mass percentage are as follows: B 7%, Mo 25%, Cr15%, C 1%, V 5%, Nb 3%, W 4%, Ce 0.5%, Mn 1%, Ta 1%, Ti 2%, binder 6%, Ni 29.5%.

Embodiment 3

[0042] Embodiment 3: A kind of 3D printing ternary boride Mo provided by this embodiment 2 NiB 2 Alloy powder and its production process are basically the same as in Example 1, except that the elements and their mass percentages are as follows: B 5%, Mo 30%, Cr 4%, C 0.5%, V 3%, Nb 1.5%, W 6%, Ce 0.6%, Mn 3%, Ta 0.7%, Ti 0.7%, binder 4%, Ni 41%.

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Abstract

The invention discloses a 3D printing ternary boride Mo 2 NiB 2 Alloy powder and its production process, its element content percentage is: B3.3~7%, Mo25~70%, Cr3~15%, C0.2~2%, V0.5~5%, Nb1~3%, W0.5-8%, Ce0.1-0.8%, Mn1-5%, Ta0.1-1%, Ti0.1-1%, Ni balance. Using the 3D printing ternary boride alloy powder provided by the invention to prepare the ternary boride Mo 2 NiB 2 Alloy-coated products and 3D printed parts with complex structures have the advantages of high melting point, high hardness, high wear resistance and high corrosion resistance, and can produce self-lubricating substances such as molybdenum dioxide during friction, and the friction coefficient is small. The wear resistance of the material can be greatly improved, the service life is long, the application prospect is broad, and it can be applied to various professional fields of wear resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, in particular to a 3D printing ternary boride Mo 2 NiB 2 Alloy powder and its production process. Background technique [0002] 3D printing technology is an advanced additive manufacturing method, which has been widely used in aerospace, biomedical, automotive, military and other fields. Metal powder is the key raw material of metal 3D printing technology, and the quality of alloy metal powder largely determines the final molding effect of the product. The ternary boride alloy material Mo 2 NiB 2 As a 3D printing material, it is still a blank in the field of 3D printing. Ternary boride alloy material Mo 2 NiB 2 It is a cemented carbide material with high melting point, high hardness, high wear resistance and high corrosion resistance. Its density is 3 / 5 of that of traditional cemented carbide, and its thermal expansion coefficient is similar to that of steel. It is very suita...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/14C22C1/05B22F3/16B22F9/08
CPCB22F3/16B22F9/082B22F2009/0848B22F2302/05C22C1/058C22C29/14
Inventor 邓俊杰罗才元
Owner 广东博杰特新材料科技有限公司
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