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A dual-phase reinforced nickel-based composite material based on additive manufacturing, its preparation method and its forming method

A composite material and additive manufacturing technology, applied in the direction of additive processing, metal processing equipment, process efficiency improvement, etc., can solve the problems of low wettability of pure nickel, difficult to obtain composite effect composite materials, etc., to achieve enhanced effect , Excellent electrical conductivity and thermal conductivity, the effect of improving wettability

Active Publication Date: 2021-10-08
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For diamond and graphene, the wettability to pure nickel is relatively low, and it is difficult to obtain a composite material with good composite effect if they are directly compounded. Therefore, the problem of low wettability of the two to pure nickel must be solved, so that Improving the interfacial bonding effect of composite materials

Method used

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  • A dual-phase reinforced nickel-based composite material based on additive manufacturing, its preparation method and its forming method
  • A dual-phase reinforced nickel-based composite material based on additive manufacturing, its preparation method and its forming method
  • A dual-phase reinforced nickel-based composite material based on additive manufacturing, its preparation method and its forming method

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Embodiment 1

[0032] In a specific embodiment, combined with figure 1 , the preparation of the finished product of the present invention and its use can be divided into the following processes:

[0033] 1. Ball mill mixing of diamond and graphene raw materials and surface nickel plating (such as figure 1 Shown in part ① in the middle): the diamond raw material powder and the graphene raw material powder are pretreated, then ball milled and mixed, and the obtained diamond / graphene powder is nickel-plated.

[0034] Two, the ball mill mixing of diamond / graphene powder and pure nickel powder (such as figure 1 Shown in part ②): the processed diamond / graphene powder and pure nickel nickel powder are mixed by ball milling to obtain a composite material powder.

[0035] Three, powder processing (such as figure 1 Shown in part ③): use the metal additive manufacturing processing equipment to process the obtained composite material powder to obtain the final product.

[0036] combine figure 1 , i...

Embodiment 2

[0052] Based on the preparation method of the nickel-based composite material in Example 1, the present invention also provides a dual-phase reinforced nickel-based composite material that can be well applied in additive manufacturing. In a specific embodiment, the present invention provides a good high thermal conductivity, high strength, corrosion-resistant dual-phase reinforced nickel-based composite material, the material reinforcement is ultra-fine diamond powder with an average particle size of 1-3 μm Graphene powder with an average particle size of 4-6 μm; the base material is pure nickel powder with an average particle size of 30-40 μm; the reinforcement method of the composite material is particle reinforcement.

[0053] Before the surface of the diamond powder is nickel-plated, it is hydrophilized, and the surface of the diamond powder has tiny pits after treatment.

[0054] Use the ball milling method to mix the treated diamond with the treated graphene powder to ob...

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Abstract

The invention provides a dual-phase reinforced nickel-based composite material based on additive manufacturing, a preparation method and a forming method thereof, including: 1. Degreasing diamond powder and graphene powder; 2. Diamond powder obtained in step 1 Carry out hydrophilic treatment; 3, the diamond powder obtained in step 2 is mixed with the graphene powder obtained in step 1 to obtain diamond-graphene powder; 4, the diamond-graphene powder obtained in step 3 is nickel-plated on the surface Processing; 5. Mix the nickel-plated diamond-graphene powder obtained in step 4 with the nickel-based powder to obtain a dual-phase reinforced nickel-based composite material powder. The invention adopts a dual-phase strengthening method, combined with nickel plating and other treatments, and greatly improves the thermal conductivity and electrical conductivity of the composite material on the premise of satisfying the strength and corrosion resistance.

Description

technical field [0001] The invention relates to the fields of composite materials and their preparation and forming, in particular to a dual-phase reinforced nickel-based composite material based on additive manufacturing with high conductivity, high thermal conductivity and high strength, a preparation method and a forming method. Background technique [0002] With the rapid development of science and technology and the continuous expansion of material application fields, people have higher and higher requirements for material performance. In addition to the requirements for traditional strength of materials, other properties of materials such as electrical conductivity and thermal conductivity are required in some special fields. Higher requirements have also been put forward; pure nickel materials have the characteristics of good strength at high temperatures, good plasticity, and poor thermal conductivity, and in terms of electrical conductivity, the performance of pure n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C19/00C22C26/00B22F1/02B22F3/105B33Y10/00B33Y70/10
CPCC22C1/0433C22C19/00C22C26/00B33Y10/00B33Y70/10B22F1/17Y02P10/25
Inventor 张升丁明路李业韬
Owner UNIV OF SCI & TECH BEIJING