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 a

Method used

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  • Medical titanium alloy and preparing method thereof

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Experimental program
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Example Embodiment

[0018] Example 1

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

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

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

[0022] Step 2: Add ceramic powder to the first mixture, stir at 2500 rpm for 5 minutes, and then raise the temperature to 3800°C to obtain the second mixture;

[0023] Step 3: After the second mixture is cooled to 2200°C at a rate of 100°C / min, and then lowered to room temperature at 400°C / min, a medical titanium alloy is obtained.

Example Embodiment

[0024] Example 2

[0025] A medical titanium alloy, including 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 includes the following steps:

[0027] Step 1. Weigh the raw materials, put titanium, copper, calcium, nickel, tungsten and platinum into the reactor and stir at 175 rpm, and then heat up to 3200°C at a constant rate of 250°C / min under inert gas to obtain the first mixture;

[0028] Step 2: Add ceramic powder to the first mixture, stir at 2800 rpm for 8 minutes, and then raise the temperature to 3900°C to obtain the second mixture;

[0029] Step 3: After the second mixture is cooled to 2300°C at a rate of 150°C / min, and then to room temperature at 450°C / min, a medical titanium alloy is obtained.

Example Embodiment

[0030] Example 3

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

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

[0033] Step 1. Weigh the raw materials, put titanium, copper, calcium, nickel, tungsten and platinum into the reactor and stir at 180 rpm, and then heat up to 3500°C at a constant rate of 300°C / min under inert gas to obtain the first mixture;

[0034] Step 2: Add ceramic powder to the first mixture, stir at 3000 rpm for 10 minutes, and then raise the temperature to 4000°C to obtain the second mixture;

[0035] In step 3, the second mixture is cooled to 2500°C at a rate of 200°C / min, and then lowered to room temperature at 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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