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

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Problems solved by technology

[0009] At present, there are no literature and patent reports on the synthesis and properties of Zn-Mg

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
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Example Embodiment

[0093] Example 1. Preparation of as-cast Zn-Mg alloy

[0094] Using pure Zn (99.99wt.%) and pure Mg (99.99wt.%) (purchased from Beijing Cuibern Nonferrous Metal Technology Development Center) as raw materials, according to different mass ratios (the mass ratio of Zn to Mg is 99:1 and 95:5) mix, in CO 2 +SF 6 Under the protection of the atmosphere, smelting at 650 ° C, after the raw materials are fully melted, after 10 minutes of heat preservation, the circulating water is rapidly cooled to obtain Zn-Mg alloy ingots (photos such as figure 1 ), 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.

Example Embodiment

[0095] Example 2. Preparation of rolled Zn-Mg alloy

[0096] First, prepare as-cast Zn-Mg alloy ingots according to the steps in Example 1; then hot-roll the Zn-Mg alloy ingots obtained above, first preheat the ingots at 250°C, and then use hot rolling to reciprocate Rolling was repeated in a rolling mill at a hot rolling temperature of 250 °C, and finally rolled to a thickness of 1.5 mm in a finishing mill at 250 °C.

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

Example Embodiment

[0098] Example 3. Preparation of extruded Zn-Mg alloy

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

[0100] 1) First, the as-cast Zn-1Mg alloy ingot was prepared according to the steps in Example 1, and the Zn-1Mg alloy bar 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) having 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 adopt the high vacuum rapid quenching system to prepare the rapidly solidified Zn-Mg alloy thin strip. The specific method is: the raw materials are in the stated proportion After mixing, a high-vacuum quick quenching system was used to prepare a rapidly solidified Zn-Mg thin ribbon. The parameters were: feeding amount 2-8 g, induction heating power 3-7 kW, nozzle-roll distance 0.80 mm, injection pressure 0.1 MPa, and roller speed 2000 r / The si...

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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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