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A 3D printed powder material

A technology of 3D printing and mixing powder, applied in the field of 3D printing, can solve problems such as not applicable to the field of 3D printing, and achieve the effect of improving drilling effect and efficiency, and good bending strength

Active Publication Date: 2022-02-08
SEED TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the use of tungsten carbide and cobalt is mostly concentrated in traditional fields such as traditional casting, powder metallurgy, and finishing cladding, such as CN109652712A, CN109434116A, CN106191609A, CN104357726A, CN101376931A, CN1807668A, CN1554789A, CN10577932A414A, CN107790844A, CN1010 , CN102773472A, CN102699330A and other documents disclosed in the proportion of relevant components, after verification, not applicable to the field of 3D printing

Method used

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  • A 3D printed powder material
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  • A 3D printed powder material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] The components based on the technical solution of the present invention are as follows:

[0104] Sintered WC-Co cemented carbide spherical particles accounted for 10%, coarse crystal or single crystal tungsten carbide particles accounted for 20%, Co-based alloy accounted for 70%;

[0105] Sintered WC-Co cemented carbide spherical particles are: Ct 5.6% ~ 6.0%, Cf ≤ 0.08%, O ≤ 0.1%, Fe ≤ 0.08%, Co 5.8% ~ 6.2%, Cr ≤ 0.05%, Ni ≤ 0.05%, Ti≤0.05%, Si≤0.01%, Ca≤0.01%, the rest is W;

[0106] Coarse crystal or single crystal tungsten carbide particles are: Ct 6.12%, Cf≤0.08%, Cr≤0.03%, Co≤0.02%, Fe≤0.03%, Mo≤0.005%, Ca≤0.002%, Si≤0.003%, Al ≤0.001%, S≤0.005%, O≤0.05%, the rest is W;

[0107] Co-based alloys are: C 1.15%, Mn≤1.0%, W4.0%, Ni≤3.0%, Cr29.0%, Mo≤1.0%, Fe≤3.0%, Si≤2.0%, and the rest is Co.

Embodiment 2

[0109] The components based on the technical solution of the present invention are as follows:

[0110] Sintered WC-Co cemented carbide spherical particles accounted for 10%, coarse crystal or single crystal tungsten carbide particles accounted for 20%, Co-based alloy accounted for 70%;

[0111] Sintered WC-Co cemented carbide spherical particles are: Ct 5.5% ~ 5.8%, Cf ≤ 0.08%, O ≤ 0.1%, Fe ≤ 0.08%, Co 7.5% ~ 8.5%, Cr ≤ 0.05%, Ni ≤ 0.05%, Ti≤0.05%, Si≤0.01%, Ca≤0.01%, the rest is W;

[0112] Coarse crystal or single crystal tungsten carbide particles are: Ct 6.18%, Cf≤0.08%, Cr≤0.03%, Co≤0.02%, Fe≤0.03%, Mo≤0.005%, Ca≤0.002%, Si≤0.003%, Al ≤0.001%, S≤0.005%, O≤0.05%, the rest is W;

[0113] Co-based alloys are: C1.2%, Mn≤1.0%, W4.5%, Ni≤3.0%, Cr29.0%, Mo≤1.0%, Fe≤3.0%, Si≤2.0%, and the rest is Co.

Embodiment 3

[0115] The components based on the technical solution of the present invention are as follows:

[0116] Sintered WC-Co cemented carbide spherical particles accounted for 15%, coarse crystal or single crystal tungsten carbide particles accounted for 40%, Co-based alloy accounted for 45%;

[0117] Sintered WC-Co cemented carbide spherical particles are: Ct 5.6% ~ 6.0%, Cf ≤ 0.08%, O ≤ 0.1%, Fe ≤ 0.08%, Co 5.8% ~ 6.2%, Cr ≤ 0.05%, Ni ≤ 0.05%, Ti≤0.05%, Si≤0.01%, Ca≤0.01%, the rest is W;

[0118] Coarse crystal or single crystal tungsten carbide particles are: Ct 6.12%, Cf≤0.08%, Cr≤0.03%, Co≤0.02%, Fe≤0.03%, Mo≤0.005%, Ca≤0.002%, Si≤0.003%, Al ≤0.001%, S≤0.005%, O≤0.05%, the rest is W;

[0119] Co-based alloys are: C 1.15%, Mn≤1.0%, W4.0%, Ni≤3.0%, Cr29.0%, Mo≤1.0%, Fe≤3.0%, Si≤2.0%, and the rest is Co.

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Abstract

A 3D printed powder material, the powder includes a mixture of sintered WC-Co cemented carbide spherical particles and tungsten carbide particles as a wear-resistant phase, and a Co-based alloy as a bonding phase; the weight percentage of the wear-resistant phase It is 20%-60%, the weight percentage of binder phase is 40%-80%; the weight percentage of sintered WC-Co cemented carbide spherical particles is 5%-15%, coarse grain or single crystal tungsten carbide The weight percentage of the particles is 15-45%; it can effectively avoid or delay the failure period, and improve the wear resistance and work efficiency of the material.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a powder material for 3D printing. Background technique [0002] Currently, in the field of 3D printing. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which basically remain unchanged even at a temperature of 500°C , It still has high hardness at 1000 °C. Based on these advantages, tools made of cemented carbide are mainly used in various industries such as machinery, automotive engineering and building materials. At present, in 3D printing, the relatively mature powder used is the combination of tungsten carbide and nickel base disclosed in CN105458256A, CN109694977A, CN106424714fA, etc. However, in the prior art, the use of tungsten carbide and cobalt is mostly concentrated in traditional fields such as traditional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/105B22F1/065B22F3/105B33Y10/00B33Y70/10C22C19/07C22C29/08C22C32/00
CPCB22F1/0003B33Y70/00B33Y10/00C22C32/0052C22C29/005C22C29/08C22C19/07B22F10/00B22F10/34B22F10/28Y02P10/25
Inventor 张汝南文磊刘彬匡小围
Owner SEED TECH CORP LTD
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