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Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof

A 3D printing, biomedical technology, applied in 3D printing, metal processing equipment, additive manufacturing, etc., can solve problems such as powder adhesion, achieve high bulk density, fast scanning speed, good wear resistance and corrosion resistance. Effect

Inactive Publication Date: 2020-04-17
SINO EURO MATERIALS TECH OF XIAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing, which solves the problem in the prior art that the powder for 3D printing prepared by vacuum atomization method is easy to cause powder adhesion

Method used

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  • Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof
  • Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof
  • Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof

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preparation example Construction

[0028] A preparation method of cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing, comprising the following steps:

[0029] Step 1 Melting: Co: 60-78%, Cr: 20-30%, W: 3.0-7.0%, Mo: 2.0-6.0%, Si: ≤1.0%, Be: ≤0.02%, Cd: ≤0.02%, Ni: ≤0.1%, the rest is impurity raw materials, metal cobalt, chromium, tungsten, molybdenum, silicon are added to the vacuum induction furnace for melting, the surface oxide scale is removed and put into vacuum self-consumption remelting to obtain cobalt Chromium-tungsten-molybdenum alloy ingots, and then the ingots are processed to obtain cobalt-chromium-tungsten-molybdenum alloy rods;

[0030] Step 2 Vacuum pressure holding gas protection: transfer the cobalt-chromium-tungsten-molybdenum alloy rod into the feeding chamber of the plasma rotary electrode atomization equipment, vacuumize the whole set of equipment and fill it with inert gas argon and helium;

[0031] Step 3 Atomization and condensation: start the water circulation...

Embodiment 1

[0048] Specific steps: Step 1 Add metal cobalt, chromium, tungsten, molybdenum, and silicon to the vacuum induction furnace for melting, remove the surface oxide skin and put it into vacuum self-consumption remelting to obtain a cobalt-chromium-tungsten-molybdenum alloy ingot, and then process the ingot After treatment, a cobalt-chromium-tungsten-molybdenum alloy rod is obtained, and the weight percentage of each component of the alloy material is Co: 63.9%, Cr: 24.7%, W: 5.4%, Mo: 5.0%, Si: 1.0%, Be: -5 %, Cd: -5 %, Ni: -5 %, the balance is impurities; step 2 transfers the cobalt-chromium-tungsten-molybdenum alloy bar into the feeding chamber of the plasma rotary electrode atomization equipment, and vacuumizes the whole set of equipment to 5×10 -5 Within Pa and filled with inert gas argon and helium; step 3 start the water circulation system and atomization function, turn on the power of the plasma generator, and then ignite the plasma gun. Rotate the cobalt-chromium-tungsten-...

Embodiment 2

[0051] Specific steps: Step 1 Add metal cobalt, chromium, tungsten, molybdenum, and silicon to the vacuum induction furnace for melting, remove the surface oxide skin and put it into vacuum self-consumption remelting to obtain a cobalt-chromium-tungsten-molybdenum alloy ingot, and then process the ingot After treatment, the cobalt-chromium-tungsten-molybdenum alloy rod is obtained, and the weight percentage of each component of the alloy material is Co: 62.3%, Cr: 26.0%, W: 5.9%, Mo: 5.1%, Si: 0.82%, Be: -5 %, Cd: -5 %, Ni: -5 %, the balance is impurities; step 2 transfers the cobalt-chromium-tungsten-molybdenum alloy bar into the feeding chamber of the plasma rotary electrode atomization equipment, and vacuumizes the whole set of equipment to 5×10 -5 Within Pa and filled with inert gas argon and helium; step 3 start the water circulation system and atomization function, turn on the power of the plasma generator, and then ignite the plasma gun. Rotate the cobalt-chromium-tungst...

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Abstract

The invention discloses a preparation method of cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing. The cobalt-chromium-tungsten-molybdenum alloy powder comprises the following components of, in percentage by weight of 60%-78% of Co, 20%-30% of Cr, 3.0%-7.0% of W, 2.0%-6.0% of Mo, smaller than or equal to 1.0% of Si, smaller than or equal to 0.02% of Be, smaller than or equal to 0.02% of Cd, smaller than or equal to 0.1% of Ni and the balance impurities, and the invention further discloses the preparation method of the cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing. The powder prepared through the method is high in sphericity degree, good in fluidity, free of satellite powder, high in apparent density, smooth in powder surface and concentrated in particle size distribution and is suitable for SLM (selective laser melting) and other 3D printing technologies, and the prepared 3D printing forming part is low in linear expansion coefficient, high in gold-ceramic bonding strength and high in residual ceramic AFAP.

Description

technical field [0001] The invention relates to the field of 3D printing material preparation, in particular to a cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a cutting-edge technology developed on the basis of information technology, precision machinery, and material science. It is also called "rapid prototyping" technology or "additive manufacturing" technology. Layers are "printed" superimposed, and the final whole is formed. In recent years, as various industries have higher and higher requirements for precision, 3D printing technology has also developed rapidly and has become a current research hotspot. 3D printing has the advantages of low cost, high speed and high precision, and has been widely used in aerospace, industrial design, biomedicine and other fields. In China, the traditional pharmaceutical industry market, biological products mass-produced by fac...

Claims

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Application Information

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IPC IPC(8): B22F9/14C22C19/07A61C13/08B33Y70/00
CPCB22F9/14C22C19/07A61C13/08A61C13/0019B33Y70/00
Inventor 兰剑左振博李晨夕朱振林敏相敏薛飒王庆相梁书锦赖运金张平祥
Owner SINO EURO MATERIALS TECH OF XIAN CO LTD
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