Method for preparing porous titanium-base composite material through composite ultrasonic vibration high-pressure twisting

A technology of high-pressure torsion and composite materials, applied in medical science, prosthesis, tissue regeneration, etc., can solve the problem of reducing the strength of titanium, bio-affinity and corrosion resistance, which cannot be widely used in clinical medicine, and the pore size and shape cannot be obtained. Control and other issues, achieve good antibacterial and antivirus performance, good renewable performance, and improve biocompatibility

Active Publication Date: 2018-07-03
SHANDONG JIANZHU UNIV
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Problems solved by technology

The existing processing technology prepares porous titanium by sintering, but the pore size and shape of the pores of the porous titanium prepared in this way cannot be controlled. What is produced is irregular pores with smooth pore walls, which reduces the strength and biocompatibility of titanium to varying degrees. degree and corrosion resistance
Porous titanium prepared by organic foam impregnation method has high porosity, but many pores are blocked, which reduces the biocompatibility of porous titanium
At present, the method of addin

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  • Method for preparing porous titanium-base composite material through composite ultrasonic vibration high-pressure twisting
  • Method for preparing porous titanium-base composite material through composite ultrasonic vibration high-pressure twisting
  • Method for preparing porous titanium-base composite material through composite ultrasonic vibration high-pressure twisting

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Embodiment Construction

[0035] 1. Powder configuration: (the mass ratio of magnesium, silver, silicon, and phosphorus is (12-16): (0.8-1.4): (25-30): (0.5-1.3), and the rest is metal titanium, determine the single The amount of powder in the second twisting process is 20-500g.) The mass ratio of metal titanium powder, magnesium powder, silver powder, silicon powder and phosphorus powder with content greater than 99.99% is selected as 55:15:1:25:1, and the single The mass of the powder mixture during twisting is 500 g.

[0036] 2. Sintering stage: Extrude the configured mixed powder through a mold on a press to make a rough blank with a certain strength and density; The matrix composite materials are further connected and welded, and the blanks are batch-processed into disc-shaped samples of d8mm×0.5mm; one sample is put into a bag.

[0037] 3. Composite ultrasonic high-pressure torsion process: the initial ultrasonic-assisted torsion process, the powder mixture 2 prepared in the process of 2 with a ...

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Abstract

The invention relates to a method for preparing a porous titanium-base composite material through composite ultrasonic vibration high-pressure twisting, in particular to a method for preparing a nano-scale reproducible anti-bacterial medical porous titanium-base composite skeleton material through combination of a high-pressure twisting method and an ultrasonic vibration method. Through proper adjustment on the rotation speed, the downward pressing force, the twisting pressing time and the twisting pressing frequency of a pressing head and the vibration frequency and amplitude of ultrasonic vibration, the blocky nano-scale reproducible anti-bacterial medical porous titanium-base composite skeleton material uniform in grain refinement degree can be prepared.

Description

technical field [0001] The invention relates to a method for preparing a porous titanium-based composite material by composite ultrasonic vibration and high-pressure torsion, in particular to a method for preparing a nanoscale renewable antibacterial medical porous titanium-based composite bone material by combining the high-pressure torsion method and the ultrasonic vibration method. By properly adjusting the rotation speed, downforce, torsion time, torsion times, and ultrasonic vibration frequency and amplitude of the indenter, a bulk nanoscale renewable antibacterial medical porous titanium-based composite with uniform grain refinement can be prepared. bone material. Background technique [0002] Titanium, chemical symbol Ti, atomic weight 47.867, specific gravity 4.506-4.516, melting point 1668±4°C. Titanium is a silver-white transition metal with good high temperature resistance, low temperature resistance, strong acid resistance, strong alkali resistance, high strengt...

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Application Information

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IPC IPC(8): B22F3/11B22F3/16C22C14/00C22C1/08A61L27/06A61L27/56
CPCA61L27/06A61L27/56C22C14/00B22F3/1134B22F3/114B22F3/16A61L2430/02B22F2999/00B22F2998/10B22F1/0003B22F3/02B22F3/1007B22F2202/01
Inventor 徐淑波刘鹏景财年范小红林晓娟李阳
Owner SHANDONG JIANZHU UNIV
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