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Preparation method for alkaline earth heatproof magnesium alloy

A magnesium alloy, heat-resistant technology, applied in the field of non-ferrous metal preparation and application, can solve the problems of poor heat resistance, easy combustion and evaporation of magnesium, low strength, etc., to achieve accurate and accurate data, dense metallographic structure, and reasonable ratio Effect

Inactive Publication Date: 2014-04-16
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although magnesium and magnesium alloys have many excellent properties and a wide range of uses, they also have defects and insufficient performance, such as low strength, poor heat resistance, poor corrosion resistance, low melting point, and poor plasticity, which greatly limit the use of magnesium and magnesium alloys. Application range of magnesium alloy
[0004] Due to the unique chemical and physical properties of magnesium and magnesium alloys, during the preparation and smelting process, magnesium elements are extremely easy to burn and evaporate, and are extremely easy to oxidize, which brings many difficulties to the preparation of magnesium alloys, especially the preparation of heat-resistant magnesium alloys. Mature technical solutions are still under discussion and research

Method used

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  • Preparation method for alkaline earth heatproof magnesium alloy
  • Preparation method for alkaline earth heatproof magnesium alloy
  • Preparation method for alkaline earth heatproof magnesium alloy

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Embodiment Construction

[0085] The present invention will be further described below in conjunction with the accompanying drawings:

[0086] figure 1 As shown, it is the smelting and casting state diagram of alkaline earth heat-resistant magnesium alloy ingots. The position and connection relationship of each part should be correct, and the proportions should be carried out according to the order.

[0087] The amount of chemical substances used in the preparation is determined according to a preset range, in grams, milliliters, millimeters, centimeters 3 is the unit of measurement.

[0088] The preparation of alkaline earth heat-resistant magnesium alloy ingots is carried out in a vacuum melting furnace, which is completed under heating, argon protection, addition of intermediate alloys, and external water circulation cooling; the vacuum melting furnace is vertical, and the lower part of vacuum melting furnace 1 is a furnace The seat 2, the upper part is the furnace cover 3, between the vacuum mel...

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Abstract

The invention relates to a preparation method for alkaline earth heatproof magnesium alloy. According to the invention, magnesium and aluminum are used raw materials, and magnesium-strontium intermediate alloy, magnesium-calcium intermediate alloy, magnesium-yttrium intermediate alloy, magnesium-lanthanum intermediate alloy and alkaline earth magnesium-strontium intermediate alloy and magnesium-calcium intermediate alloy are added as a main addition chain; and then melting at a vacuum melting furnace under the protection of argon, casting for formation of an ingot, cutting and low temperature tempering are carried out so as to prepare an alkaline earth heatproof magnesium alloy ingot. The preparation method provided by the invention has the advantages of an advanced process, reasonable proportioning, detailed and accurate data, no pollution to the environment, safety, stability and reliability; the prepared alkaline earth heatproof magnesium alloy ingot has a compact metallographic structure and high strength and has a tensile strength of 190 MPa, a yield strength of 140 MPa and elongation of 4.0% after insulation at a temperature of 200 DEG C for 20 min; and the preparation method is an ideal preparation method for the alkaline earth heatproof magnesium alloy.

Description

technical field [0001] The invention relates to a preparation method of alkaline earth heat-resistant magnesium alloy, which belongs to the technical field of nonferrous metal preparation and application. Background technique [0002] Magnesium and magnesium alloys are the lightest metal structural materials, with high specific strength and specific stiffness, good electrical and thermal conductivity, magnetic shielding, damping and shock absorption, and machinability. And other industrial fields have been widely used. [0003] Although magnesium and magnesium alloys have many excellent properties and a wide range of uses, they also have defects and insufficient performance, such as low strength, poor heat resistance, poor corrosion resistance, low melting point, and poor plasticity, which greatly limit the use of magnesium and magnesium alloys. Applications of magnesium alloys. [0004] Due to the unique chemical and physical properties of magnesium and magnesium alloys, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C23/00C22F1/06
Inventor 范晋平许并社王社斌李明照刘璐
Owner TAIYUAN UNIV OF TECH
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