3D printing titanium alloy and preparation method thereof

A 3D printing and titanium alloy technology, applied in the field of titanium alloys, can solve the problems of not being able to meet the requirements of clinical surface osteoblast adhesion to promote bone formation, so as to eliminate the risk of clinical use, meet the requirements of osteoblast adhesion and promote bone formation, and reduce The effect of evaluation and testing

Active Publication Date: 2021-06-22
DABO MEDICAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the existing titanium alloy products are difficult to form trabecular bone structure and multi-level micron structure at the same time, so that they cannot meet the clinical su

Method used

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  • 3D printing titanium alloy and preparation method thereof
  • 3D printing titanium alloy and preparation method thereof
  • 3D printing titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] S1. Using titanium alloy particles with a particle size of 0.5-50 μm as raw materials, the 3D printed titanium alloy body is formed by laser melting. The laser melting conditions include a power of 150W and a printing speed of 1000mm / s. The surface SEM image of the 3D printed titanium alloy body is as follows figure 1 with figure 2 As shown, among them, figure 1 The magnification is 100 times, figure 2 The magnification is 500 times. from figure 1 with figure 2 It can be seen that the surface of the 3D printed titanium alloy body has a bone trabecular structure, and a large number of semi-fused spherical particles are attached to the bone trabecular structure, and the surface of the unattached area is smooth without special microporous structure.

[0041] S2. Place the 3D printed titanium alloy body in PWC-401 cleaning agent and ultrasonically clean it at 65°C for 10 minutes. After cleaning, use 608-mesh ceramic sand for sandblasting. The high-pressure water wa...

Embodiment 2

[0046] S1. Using titanium alloy particles with a particle size of 0.5-50 μm as raw materials, a 3D printed titanium alloy body is formed by laser melting. The laser melting conditions include a power of 200W and a printing speed of 2000mm / s. According to SEM detection, the surface of the 3D printed titanium alloy body has a bone trabecular structure, and a large number of semi-fused spherical particles are attached to the bone trabecular structure, and the surface of the unattached area is smooth without special microporous structure.

[0047] S2. Place the 3D printed titanium alloy body in PWC-401 cleaning agent and ultrasonically clean it at 65°C for 10 minutes. After cleaning, use 1000-mesh titanium sand for sandblasting. The high-pressure water was washed under the pressure of 100kg for 1200s, and then dried to obtain the pretreated 3D printing titanium alloy.

[0048] S3. Clean the pretreated 3D printed titanium alloy with vacuum plasma. The specific conditions include th...

Embodiment 3

[0051] S1. Using titanium alloy particles with a particle size of 0.5-50 μm as raw materials, the 3D printed titanium alloy body is formed by laser melting. The laser melting conditions include a power of 100W and a printing speed of 800mm / s. According to SEM detection, the surface of the 3D printed titanium alloy body has a bone trabecular structure, and a large number of semi-fused spherical particles are attached to the bone trabecular structure, and the surface of the unattached area is smooth without special microporous structure.

[0052] S2. Place the 3D printed titanium alloy body in PWC-401 cleaning agent and ultrasonically clean it at 65°C for 10 minutes. After cleaning, use 60-mesh white corundum sand for sandblasting treatment. The sandblasting pressure is 3bar and the sandblasting distance is 15cm. After that Rinse with high-pressure water for 600s under a pressure of 500kg, and then dry to obtain a pretreated 3D printed titanium alloy.

[0053] S3. Place the pret...

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Abstract

The invention belongs to the field of titanium alloys, and relates to a 3D printing titanium alloy and a preparation method thereof. The preparation method of the 3D printing titanium alloy comprises the steps: subjecting titanium alloy powder to 3D printing, and then sequentially subjecting an obtained 3D printing titanium alloy body to cleaning and oil removal, sand blasting treatment, high-pressure washing, first-time surface hydrophilic treatment, first-time acid etching treatment, second-time surface hydrophilic treatment and second-time acid etching treatment. By adopting the method provided by the invention, a composite structure of a macroscopic bone trabecula structure and a microcosmic multi-stage micron hole structure can be obtained on the surface of the 3D printing titanium alloy, so that the requirements of osteoblast adhesion and osteogenesis promotion are met, and free powder particles and semi-molten particle residues in a porous layer and a grid structure on the surface of the 3D printing titanium alloy can be effectively removed, and particulate matter and impurity components are prevented from remaining on the surface of the 3D printing titanium alloy.

Description

technical field [0001] The invention belongs to the field of titanium alloys, and in particular relates to a 3D printing titanium alloy and a preparation method thereof. Background technique [0002] Compared with pure titanium materials, titanium alloys have the advantages of high strength and good fatigue performance. Under the same size, titanium alloys have better mechanical properties than pure titanium materials. In the field of orthopedics, compared with pure titanium materials, titanium alloys have more grades and a wider range of applications. Therefore, a large number of raw materials such as TC4 titanium alloys and TC20 titanium alloys are used as matrix materials for trauma, spine, and joints, and are used for processing and manufacturing medical internal organs. Plant products, especially in orthopedic implants, are more widely used. For example, 3D printed intervertebral fusion cages, 3D printed femoral stems, and 3D printed acetabular cups are all made of TC4 ...

Claims

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Application Information

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IPC IPC(8): A61L27/06A61L27/56A61L27/50B22F10/28B22F10/62B22F10/68B22F10/66C23F1/26B33Y10/00B33Y40/20B33Y80/00
CPCA61L27/06A61L27/56A61L27/50B22F3/24C23F1/26B33Y10/00B33Y40/20B33Y80/00A61L2430/02B22F2003/241B22F2003/247Y02P10/25
Inventor 陈艳文廖继章王老乌曾达林志雄甘艺良陈剑峰谢泽阳
Owner DABO MEDICAL TECH CO LTD
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