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Zn-Mg zinc alloy and preparation method and application thereof

A zinc alloy, zn-mg technology, used in pharmaceutical formulations, dental preparations, mold cups, etc., to achieve good histocompatibility, overcome excessive degradation rate, and long-term effective mechanical support.

Active Publication Date: 2014-12-17
湖南华翔医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, there are no literature and patent reports on the synthesis and properties of Zn-Mg alloys at home and abroad, and it is proposed to use Zn-Mg alloys as biodegradable biomedical materials.

Method used

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  • Zn-Mg zinc alloy and preparation method and application thereof
  • Zn-Mg zinc alloy and preparation method and application thereof
  • Zn-Mg zinc alloy and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Embodiment 1, preparation as-cast Zn-Mg series alloy

[0094] Using pure Zn (99.99wt.%) and pure Mg (99.99wt.%) (purchased from Beijing Cuibin Nonferrous Metals Technology Development Center) as raw materials, according to different mass ratios (the mass ratios of Zn and Mg are respectively 99:1 and 95:5) mixed in CO 2 +SF 6 Under the protection of the atmosphere, smelt at 650 ° C. After the raw materials are fully melted, after 10 minutes of heat preservation, the circulating water is rapidly cooled to obtain a Zn-Mg alloy ingot (photo as figure 1 shown), where Zn-1Mg means that the mass ratio of Zn to Mg is 99:1, and Zn-5Mg means that the mass ratio of Zn to Mg is 95:5.

Embodiment 2

[0095] Embodiment 2, preparation rolling state Zn-Mg series alloy

[0096] First, the as-cast Zn-Mg alloy ingot is prepared according to the steps in Example 1; It is repeatedly rolled in a rolling mill with a hot rolling temperature of 250°C, and finally rolled to a thickness of 1.5mm at 250°C in a finishing mill.

[0097] figure 2 This is a photograph of the as-rolled Zn-Mg alloy (Zn-1Mg) obtained in this example.

Embodiment 3

[0098] Embodiment 3, preparation extruded state Zn-Mg series alloy

[0099] Prepare according to the following 1) or 2) steps:

[0100] 1) First, the as-cast Zn-1Mg alloy ingot was prepared according to the steps in Example 1, and the Zn-1Mg alloy rod was prepared by extrusion, and radial extrusion was adopted, and the extrusion temperature was 200°C. The extrusion ratio was 20, and a Zn-Mg alloy rod (Zn-1Mg) with a diameter of 10 mm was prepared.

[0101] 2) First prepare the as-cast Zn-Mg alloy ingot according to the steps in Example 1, and use a high vacuum rapid quenching system to prepare a rapidly solidified Zn-Mg alloy ribbon. After mixing, a high-vacuum quenching system is used to prepare rapidly solidified Zn-Mg thin strips. The parameters are 2-8g feeding amount, 3-7kW induction heating power, 0.80mm distance between nozzle and roller, 0.1MPa injection pressure, and 2000r / mln and nozzle slit size 1film×8mm×6mm. Then crush the ribbon and press it into a blank. The...

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Abstract

The invention discloses a Zn-Mg zinc alloy and a preparation method and application thereof. The zinc alloy contains Zn and Mg; and the weight percentage of Mg in the zinc alloy is 0-20%, 0 not included. The zinc alloy further contains microelements which are at least one of strontium, calcium, silicon, phosphorus, lithium, silver, tin and rare earth elements; and in the zinc alloy, the mass percentage of the microelements is 0-3%, 0 not included. The mechanical performance of the Zn-Mg zinc alloy accords with the strength and toughness requirements of a medical implant material; the Zn-Mg zinc alloy is non-toxic, has excellent histocompatibility and blood compatibility, and can be degraded in vivo; and metal ions obtained from dissolving can be absorbed and used by living bodies to promote bone growth, or can be removed from the bodies through metabolism.

Description

technical field [0001] The invention relates to a Zn-Mg series zinc alloy and its preparation method and application, in particular to a Zn-Mg series zinc alloy and its preparation method and its application in the preparation of body fluid degradable medical implants, belonging to medical metal materials Preparation technology field. Background technique [0002] Currently, clinical biomedical materials mainly include biomedical metal materials, inorganic materials, polymer materials, composite materials, and bionic materials. Compared with polymer materials and ceramic materials, medical metal materials have higher strength, toughness and processing performance, so they are the most widely used. Such as: 316L, 317L, 304V stainless steel, Co-Cr-Mo alloy, pure titanium, Ti-6Al-4V, TiNi alloy, etc. These materials are non-degradable in the human body and are permanently implanted. When the implant expires in the human body, it must be removed through a second operation, the...

Claims

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Application Information

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IPC IPC(8): C22C18/00B05D7/14C22C1/02C22C1/04A61L27/04A61L27/58A61L31/02A61L31/14A61K6/04
Inventor 郑玉峰李华芳秦岭
Owner 湖南华翔医疗科技有限公司
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