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Medical titanium alloy and preparing method thereof

A titanium alloy and mixture technology, which is applied in the field of medical titanium alloy and its preparation, can solve the problems of human injury and human discomfort, and achieve the effects of strong compression resistance, good biocompatibility, and uniform pore size and porosity

Active Publication Date: 2015-10-07
南通金百吉五金制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the medical titanium alloy commonly used in the medical field is Ti-6Al-4v ELI alloy, but a very small amount of vanadium and aluminum ions will be precipitated during use. These two ions Both will cause discomfort to the human body and cause harm to the human body

Method used

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  • Medical titanium alloy and preparing method thereof

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Effect test

Embodiment 1

[0019] A medical titanium alloy, comprising the following components by mass percentage: 12% titanium, 28% zirconium, 8% copper, 0.5% calcium, 12% 800-mesh ceramic powder, 0.2% nickel, 0.6% tungsten, and 0.3% platinum .

[0020] The preparation method of the above-mentioned medical titanium alloy comprises the following steps:

[0021] Step 1: Weigh the raw materials, put titanium, copper, calcium, nickel, tungsten and platinum into the reactor and stir at 150rpm, and then under inert gas at 200°C / min. Heating at a constant rate to 3000°C to obtain the first mixture;

[0022] Step 2, adding ceramic powder to the first mixture, stirring at 2500rpm for 5min, then raising the temperature to 3800°C to obtain the second mixture;

[0023] In step 3, the temperature of the second mixture is lowered to 2200° C. at a rate of 100° C. / min, and then lowered to room temperature at 400° C. / min to obtain a medical titanium alloy.

Embodiment 2

[0025] A medical titanium alloy, comprising the following components by mass percentage: 14-16% titanium, 35-40% zirconium, 9-11% copper, 0.8-1.2% calcium, 20-24% 800 mesh ceramic powder, nickel 0.3-0.4%, tungsten 0.6-0.8%, platinum 0.4-0.6%.

[0026] The preparation method of the above-mentioned medical titanium alloy comprises the following steps:

[0027] Step 1, weighing the raw materials, putting titanium, copper, calcium, nickel, tungsten and platinum into the reactor and stirring at 175rpm, and then raising the temperature to 3200°C at a constant speed of 250°C / min under an inert gas to obtain the first mixture;

[0028] Step 2, adding ceramic powder to the first mixture, stirring at 2800rpm for 8min, then raising the temperature to 3900°C to obtain the second mixture;

[0029] In step 3, the temperature of the second mixture is lowered to 2300° C. at a rate of 150° C. / min, and then lowered to room temperature at a rate of 450° C. / min to obtain a medical titanium alloy...

Embodiment 3

[0031] A medical titanium alloy, comprising the following components by mass percentage: 18% titanium, 42% zirconium, 12% copper, 1.4% calcium, 26% 800-mesh ceramic powder, 0.5% nickel, 0.8% tungsten, and 0.8% platinum .

[0032] The preparation method of the above-mentioned medical titanium alloy comprises the following steps:

[0033] Step 1, weighing the raw materials, putting titanium, copper, calcium, nickel, tungsten and platinum into the reactor and stirring at 180rpm, and then raising the temperature to 3500°C at a constant speed of 300°C / min under an inert gas to obtain the first mixture;

[0034] Step 2, adding ceramic powder to the first mixture, stirring at 3000rpm for 10min, then raising the temperature to 4000°C to obtain the second mixture;

[0035] In step 3, the temperature of the second mixture is lowered to 2500° C. at a rate of 200° C. / min, and then lowered to room temperature at a rate of 500° C. / min to obtain a medical titanium alloy.

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Abstract

The invention discloses medical titanium alloy and a preparing method thereof. The medical titanium alloy comprises, by mass, 12-18% of titanium, 28-42% of zirconium, 8-12% of copper, 0.5-1.4% of calcium, 12-26% of ceramic powder, 0.2-0.5% of nickel, 0.6-0.8% of tungsten, and 0.3-0.8% of platinum. The preparing method comprises the steps of weighing raw materials, adding titanium, copper, calcium, nickel, tungsten and platinum to a reaction still to be stirred, and conducting heating in the presence of inert gases at a constant speed to 3000-3500 DEG C to obtain a first mixture; adding ceramic powder to the first mixture, conducting stirring, and then conducting heating to 3800-4000 DEG C to obtain a second mixture; cooling the second mixture at the speed of 100-200 DEG C / min to 2200-2500 DEG C, and then conducting cooling at the speed of 400-500 DEG C / min to indoor temperature to obtain the medical titanium alloy. The titanium alloy has uniform bore diameter and high biocompatibility, is harmless to the human body, and is suitable for popularization.

Description

technical field [0001] The invention belongs to the field of medical titanium alloy materials, and in particular relates to a medical titanium alloy and a preparation method thereof. Background technique [0002] Medical titanium alloy refers to the titanium alloy used to manufacture medical period, prosthesis or artificial organ and auxiliary treatment equipment implanted in the human body. It generally requires high specific strength and mechanical properties close to human bone. Fatigue, corrosion resistance and excellent biocompatibility and other characteristics. [0003] At present, the medical titanium alloy commonly used in the medical field is Ti-6Al-4v ELI alloy, but a very small amount of vanadium and aluminum ions will be precipitated during use, and these two ions will cause discomfort and harm to the human body. Only by using non-toxic elemental ions to make alloys with good mechanical properties and high biocompatibility can hidden dangers be eradicated. ...

Claims

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Application Information

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IPC IPC(8): C22C30/02C22C1/02
Inventor 吕少波李卓才李苏杨
Owner 南通金百吉五金制造有限公司
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