A kind of 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: 2022-07-08
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 surface osteoblast adhesion and promote bone formation, and provide a macro bone 3D printing titanium alloy with a trabecular structure and a composite structure with a multi-level micro-hole structure on the microscopic scale and its preparation method

Method used

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  • A kind of 3D printing titanium alloy and preparation method thereof
  • A kind of 3D printing titanium alloy and preparation method thereof
  • A kind of 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, a 3D printing titanium alloy body is formed by laser melting. The conditions of the laser melting 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 and figure 2 shown, where, figure 1 The magnification is 100 times, figure 2 The magnification is 500 times. from figure 1 and 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-molten spherical particles are attached to the bone trabecular structure, and the surface of the unattached area is smooth and has no 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 sandblasting pressure i...

Embodiment 2

[0046] S1. Using titanium alloy particles with a particle size of 0.5 to 50 μm as raw materials, a 3D printing titanium alloy body is formed by laser melting. The laser melting conditions include a power of 200W and a printing speed of 2000mm / s. The SEM test shows that the surface of the 3D printed titanium alloy body has a bone trabecular structure, and a large number of semi-molten spherical particles are attached to the bone trabecular structure. At the same time, the surface of the unattached area is smooth and has no 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 sandblasting pressure is 6bar and the sandblasting distance is 10cm. High-pressure water was rinsed under a pressure of 100kg for 1200s, and then dried to obtain a pretreated 3D printed titanium alloy.

[0048] S3. Use vacuum plasma t...

Embodiment 3

[0051] S1. Using titanium alloy particles with a particle size of 0.5 to 50 μm as raw materials, a 3D printing titanium alloy body is formed by laser melting. The laser melting conditions include a power of 100W and a printing speed of 800mm / s. The SEM test shows that the surface of the 3D printed titanium alloy body has a bone trabecular structure, and a large number of semi-molten spherical particles are attached to the bone trabecular structure. At the same time, the surface of the unattached area is smooth and has no 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. The sandblasting pressure is 3bar and the sandblasting distance is 15cm. 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 pretreate...

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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 includes: 3D printing the titanium alloy powder, and then sequentially performing cleaning and degreasing, sandblasting, high pressure washing, first surface hydrophilic treatment, first The second acid etching treatment, the second surface hydrophilic treatment and the second acid etching treatment. The method provided by the invention can not only obtain a composite structure of macroscopic bone trabecular structure and microscopic multi-level micro-hole structure on the surface of 3D printed titanium alloy to meet the requirements of osteoblast adhesion and osteogenesis, but also can 3D printed titanium alloy. The porous layer on the surface of the alloy and the free powder particles and semi-molten particle residues in the mesh structure are effectively removed to prevent particles and impurities from remaining on the surface of the 3D printed 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, titanium alloys have more grades than pure titanium materials and have a wider range of applications. Therefore, trauma, spine, and joints use a large number of raw materials such as TC4 titanium alloy and TC20 titanium alloy as the matrix material for processing and manufacturing medical interiors. Plant products, especially in orthopedic implants, are more widely used, such as 3D printed interbody cages, 3D printed femoral stems, and 3D printed acetabular cups, all of which are made of TC4 titanium alloy materials to meet the req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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