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Mg-Sn-Mn system wrought magnesium alloy and preparation method thereof

A wrought magnesium alloy, mg-sn-mn technology, applied in the field of alloys, can solve problems such as toxicity, achieve the effects of low production cost, reduce the influence of impurity elements, and control the degradation rate

Inactive Publication Date: 2014-03-26
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the currently researched medical magnesium alloys contain Al and / or rare earth elements, among which aluminum in the alloy is a neurotoxic element, and the impact of rare earth elements on human health is also controversial. It is generally believed that the accumulation of rare earth elements in the body will exhibit toxic effects

Method used

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  • Mg-Sn-Mn system wrought magnesium alloy and preparation method thereof
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Embodiment 1

[0032] The method for preparing the Mg-Sn-Mn series deformed magnesium alloy in this embodiment comprises the following steps:

[0033] 1) Raw material preparation: select pure magnesium, pure tin and magnesium-manganese master alloy, wherein the mass percentage of manganese in the magnesium-manganese master alloy is 5%. Properly adjust the content of each raw material so that the alloy composition meets: Sn: 1%, Mn: 0.5%, and the rest is magnesium.

[0034] 2) Smelting: in SF 6 and CO 2 Under the protection of gas, the pure magnesium ingot is heated to 740°C to melt; then the pure tin and magnesium-manganese intermediate alloy preheated at 100-200°C are added to the magnesium melt for melting; finally, the alloy melt is kept at 740°C for 30 Minutes, after fully stirring for 3 minutes, let it stand for 5 minutes, and knock off the surface scum.

[0035] 3) Casting: in SF 6 and CO 2 Under the protection of mixed gas, the magnesium alloy melt is cast into an iron mold prehe...

Embodiment 2

[0039] The method for preparing the Mg-Sn-Mn series deformed magnesium alloy in this embodiment comprises the following steps:

[0040] 1) Raw material preparation: select pure magnesium, pure tin and magnesium-manganese master alloy, wherein the mass percentage of manganese in the magnesium-manganese master alloy is 5%. Properly adjust the content of each raw material so that the alloy composition satisfies: Sn: 1%, Mn: 1%, and the rest is magnesium.

[0041] 2) Smelting: in SF 6 and CO 2 Under the protection of gas, the pure magnesium ingot is heated to 740°C to melt; then the pure tin and magnesium-manganese intermediate alloy preheated at 100-200°C are added to the magnesium melt for melting; finally, the alloy melt is kept at 740°C for 30 Minutes, after fully stirring for 3 minutes, let it stand for 5 minutes, and knock off the surface scum.

[0042] 3) Casting: in SF 6 and CO 2 Under the protection of mixed gas, the magnesium alloy melt is cast into an iron mold pre...

Embodiment 3

[0046] The method for preparing the Mg-Sn-Mn series deformed magnesium alloy in this embodiment comprises the following steps:

[0047] 1) Raw material preparation: select pure magnesium, pure tin and magnesium-manganese master alloy, wherein the mass percentage of manganese in the magnesium-manganese master alloy is 5%. Properly adjust the content of each raw material so that the alloy composition meets: Sn: 2%, Mn: 1%, and the rest is magnesium.

[0048] 2) Smelting: in SF 6 and CO 2 Under the protection of gas, the pure magnesium ingot is heated to 740°C to melt; then the pure tin and magnesium-manganese intermediate alloy preheated at 100-200°C are added to the magnesium melt for melting; finally, the alloy melt is kept at 740°C for 30 Minutes, after fully stirring for 3 minutes, let it stand for 5 minutes, and knock off the surface scum.

[0049] 3) Casting: in SF 6 and CO2 Under the protection of mixed gas, the magnesium alloy melt is cast into an iron mold preheated...

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Abstract

The invention discloses Mg-Sn-Mn system wrought magnesium alloy and a preparation method thereof. The magnesium alloy comprises the following components in percentage by weight: 0.5 to 2 percent of tin, 0.5 to 1.5 percent of manganese and the balance of magnesium. The preparation method comprises the following steps of 1) preparing raw materials according to the alloy components; 2) smelting the selected raw materials, pouring the selected raw materials, or directly cooling the melt to obtain cast ingot; 3) homogenizing the obtained cast ingot; 4) extruding the homogenized cast ingot to obtain the wrought magnesium alloy finished product. The preparation method of the wrought magnesium alloy is simple, the cost is low, the comprehensive mechanical property is excellent, the biological compatibility is good, and the degradation speed and the mechanical performance are adjustable. The Mg-Sn-Mn system wrought magnesium alloy can be used as a medical material and also can be used as an ordinary structural material.

Description

technical field [0001] The invention belongs to the field of alloys, and relates to a magnesium-based alloy, in particular to a Mg-Sn-Mn series deformed magnesium alloy and a preparation method thereof. Background technique [0002] Magnesium alloys are widely used. At present, commercial magnesium alloys can be roughly divided into cast magnesium alloys and deformed magnesium alloys. Cast magnesium alloys can form components with complex shapes, but their plasticity at room temperature is poor, and the scope of application is limited; the comprehensive mechanical properties of deformed magnesium alloys are somewhat different. However, most of the existing deformed magnesium alloys contain aluminum or rare earth, and the high temperature performance of aluminum-containing magnesium alloys is poor, so they can only be used at room temperature. Although magnesium alloys containing rare earth elements can be used at high temperatures, they are expensive and their use is still li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/03C22F1/06
Inventor 潘复生赵朝勇汤爱涛佘加潘虎成宋锴
Owner CHONGQING UNIV
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