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Preparation method for biomedical porous low-modulus titanium alloy

A technology of titanium alloy and titanium alloy powder, applied in the field of porous titanium alloy, can solve the problems of low strength, low alloy powder feeding degree, long curing time, etc.

Inactive Publication Date: 2013-10-30
湖南迈迪科新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the current technology has at least the following problems: the feed rate of the alloy powder including Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy is not high in the preparation based on the droplet injection molding technology , longer curing time, and lower strength than other molding methods

Method used

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  • Preparation method for biomedical porous low-modulus titanium alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing a porous titanium alloy, comprising the steps of:

[0041] Step 1: Preparation of Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder particles by rotary atomization method

[0042] Using rotating electrode atomization equipment, prepare Ti-15Nb-10Ta-1Zr-0.2Fe alloy raw powder, wherein the diameter of the electrode is φ50mm, and the rotation speed is 17500rpm;

[0043] Step 2: Prepare uniformly dispersed titanium alloy powder by ball milling

[0044] Take 100g of original Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder and mix it with 25g of absolute ethanol evenly, and add 1g of sodium lauryl sulfate, take 700g of stainless steel balls, ball mill for 18h in a vacuum environment, and After vacuum drying for 48 hours, titanium alloy powder with a particle size of 10-60 μm was obtained;

[0045] Step 3: Prepare Photosensitive Adhesive

[0046] Mix 15-90 parts of methacrylic epoxy resin, 20-40 parts of 1,6-hexanediol diacrylate, 1 part of benzil, 4 parts of...

Embodiment 2

[0054] A method for preparing a porous titanium alloy, comprising the steps of:

[0055] Step 1: Preparation of Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder particles by rotary atomization method

[0056] Prepare Ti-15Nb-10Ta-1Zr-0.2Fe alloy raw powder using rotating electrode atomization equipment, wherein the diameter of the electrode is φ50mm, and the rotation speed is 15000rpm;

[0057] Step 2: Prepare uniformly dispersed titanium alloy powder by ball milling

[0058] Take 200g of the original Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder and mix it with 50g of absolute ethanol evenly, and add 1g of sodium lauryl sulfate, take 1400g of stainless steel balls, ball mill for 18h in a vacuum environment, and After vacuum drying for 48 hours, titanium alloy powder with a particle size of 10-60 μm was obtained;

[0059] Step 3: Prepare Photosensitive Adhesive

[0060] 15-90 parts of glycidyl methacrylate, 20-40 parts of polyethylene glycol (200) diacrylate, 1 part of benzil, 4...

Embodiment 3

[0068] A method for preparing a porous titanium alloy, comprising the steps of:

[0069] Step 1: Preparation of Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder particles by rotary atomization method

[0070] Prepare Ti-15Nb-10Ta-1Zr-0.2Fe alloy raw powder by using rotating electrode atomization equipment, wherein the diameter of the electrode is φ50mm, and the rotation speed is 12000rpm;

[0071] Step 2: Prepare uniformly dispersed titanium alloy powder by ball milling

[0072] Take 300g of the original Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder and mix it with 75g of absolute ethanol evenly, and add 1g of sodium lauryl sulfate, take 2100g of stainless steel balls, ball mill for 18h in a vacuum environment, and After vacuum drying for 48 hours, titanium alloy powder with a particle size of 10-60 μm was obtained;

[0073] Step 3: Prepare Photosensitive Adhesive

[0074] Mix 15-90 parts of methacrylic epoxy resin, 20-40 parts of ethoxylated 1.6 hexanediol diacrylate, 1 part of...

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Abstract

The invention discloses a preparation method for Ti-15Nb-10Ta-1Zr-0.2Fe porous titanium alloy. The preparation method comprises the following steps: step 1, preparation of Ti-15Nb-10Ta-1Zr-0.2Fe titanium alloy powder by means of a rotating electrode atomization method, step 2, preparation of photosensitive adhesives, step 3, droplet spray molding, step 4, ultraviolet light curing, step 5, removal of adhesives, and step 6, vacuum sintering. The beneficial effects of the preparation method are as follows. (1) The alloy powder prepared by means of a rotating electrode atomization method has small particle size and good allround performance, and the particles are spherical. The powder-preparing technology is one of basic technologies for preparing high-performance titanium alloy members in the prior art. (2) By utilizing a droplet spray technology, member molding is simple and rapid. The working efficiency is high, the cost is low, the raw materials can be recycled, and members with complicated shapes can be set and prepared according to computer programs. (3) Ultraviolet light irradiation curing is performed by utilizing suitable photosensitive adhesives. The equipment requirement is simple, the working efficiency is high, the molding precision of members can be ensured, and Ti-15Nb-10Ta-1Zr-0.2Fe porous titanium alloy members with different porosity sizes can be prepared through control of photosensitive adhesive types and droplet injection parameters and establishment of different sintering processes.

Description

technical field [0001] The invention relates to the technical field of porous titanium alloys, in particular to a preparation method of porous titanium alloys formed by droplet injection molding and ultraviolet light curing, which realizes the preparation of precision low modulus porous titanium products for medical use. Background technique [0002] Titanium and its alloys are considered to be an excellent metal material for medical implants due to their low density, good biocompatibility, excellent mechanical compatibility, and excellent mechanical properties. Because the porous tissue structure has an internal through-hole pore structure, it can not only further reduce its elastic modulus, but also facilitate the recovery of biological tissues and the transmission of body fluids. It is a new type of medical metal material with application prospects. At present, porous titanium and its alloys have been widely used clinically, such as porous titanium alloy hip joints and po...

Claims

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Application Information

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IPC IPC(8): C22C1/08C22C14/00B22F3/11B22F9/08
Inventor 刘会群易丹青杨伏良
Owner 湖南迈迪科新材有限公司
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