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A method for continuous automatic production of magnesium-rare earth master alloy

A rare earth intermediate alloy, automatic production technology, applied in the control of molten metal pouring from the ladle, metal processing equipment, manufacturing tools and other directions, can solve the problems of serious pollution, large smoke generation, etc. High safety and the effect of improving production safety

Active Publication Date: 2016-08-17
HUNAN RARE EARTH METAL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnesium and rare earths are easy to burn when there is no gas protection in non-vacuum open smelting, which makes the production environment smoke and cause serious pollution

Method used

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  • A method for continuous automatic production of magnesium-rare earth master alloy
  • A method for continuous automatic production of magnesium-rare earth master alloy
  • A method for continuous automatic production of magnesium-rare earth master alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Magnesium alloy continuous automatic ingot casting system is used to produce magnesium-rare earth master alloy ingots to realize the flexible production process of continuous melting and continuous casting of magnesium-rare earth master alloys. The specific implementation is as follows (see figure 1 Process flow chart shown):

[0051] 1) Material preparation: Crush the rare earth metal into small irregular pieces of 5-10mm. The surface of the magnesium ingot is polished and pretreated with jet sand to remove the oxide scale and surface contaminants. Part of the magnesium ingot is cut into small sections to 10-30cm for easy batching. The pre-treated magnesium ingot is placed on the cover of the continuous casting furnace and preheated to 80-100°C.

[0052] 2) Ingredients: According to product requirements and workshop process instructions, the ingredients are weighed in proportion.

[0053] 3) Refining: Power on and set up the program (the process parameters are set according ...

specific Embodiment approach

[0058] The magnesium alloy continuous automatic ingot casting system device is used to produce magnesium-rare earth master alloy ingots, and the flexible production process of continuous melting and continuous casting of magnesium-rare earth master alloys is realized. The specific implementation is as follows:

[0059] (1) Crush the rare earth metal material on a hydraulic press into small pieces of 5-10mm, cut at least part of the magnesium ingot into 10-30cm pieces for batching, and clean the surface of the magnesium ingot and place it on the cover of the continuous casting furnace Preheat to 80-100℃;

[0060] (2) Start the continuous ingot casting machine in advance to preheat for 30 minutes, weigh the ingredients according to the proportion, set the program, and automatically start the gas protection when the temperature reaches 350℃, and add the prepared magnesium ingots to the nickel-free high temperature alloy steel crucible first Inside, heat to 660℃-680℃, add pure rare ear...

Embodiment 3

[0066] The magnesium alloy continuous automatic ingot casting system device is used to produce magnesium-rare earth master alloy ingots, and the flexible production process of continuous melting and continuous casting of magnesium-rare earth master alloys is realized. The specific implementation is as follows:

[0067] (1) Crush the rare earth metal material on a hydraulic press into small pieces of 5-10mm, cut at least part of the magnesium ingot into 10-30cm pieces for batching, and clean the surface of the magnesium ingot and place it on the cover of the continuous casting furnace Preheat to 80-100℃;

[0068] (2) Start the continuous ingot casting machine in advance to preheat for 30 minutes, weigh the ingredients according to the proportion, set the program, and automatically start the gas protection when the temperature reaches 350℃, and add the prepared magnesium ingots to the nickel-free high temperature alloy steel crucible first Inside, heat to 680°C, add pure rare earth m...

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Abstract

The invention discloses a method for producing 16 kinds of magnesium-rare earth master alloys such as magnesium-neodymium master alloy by continuous automatic ingot casting. After the magnesium ingot raw material is melted in the refining furnace, rare earth metal materials are added, and the slag is removed by people. The system automatically stirs and homogenizes. Continuous automatic ingot casting, alloy liquid cooling to form standard magnesium-rare earth master alloy ingot. The key point of the present invention is that it can adapt to the continuous automatic ingot production of 16 kinds of magnesium-rare earth master alloys such as magnesium-neodymium master alloy, which reduces the labor intensity of production, and the production in an anhydrous environment greatly improves production safety. The products produced have consistency and high yield. The crucible made of nickel-free high-temperature alloy steel plate does not bring carbon content into the production process, high production efficiency, suitable for large-scale continuous production, no environmental pollution, waste residue can be recycled, and truly realize Safe and efficient mass production of magnesium-rare earth master alloy.

Description

Technical field [0001] The invention relates to a method for magnesium-rare earth master alloys, in particular to a method for continuously and automatically producing 16 kinds of magnesium-rare earth master alloys such as magnesium-neodymium alloys and products thereof, belonging to the field of metal materials. Background technique [0002] In the field of magnesium alloys, especially in the field of high-temperature magnesium alloys, the excellent purification and strengthening properties of rare earths are constantly being recognized and mastered. At present, a series of magnesium alloys containing rare earths have been developed. They have unique properties such as high strength, heat resistance and corrosion resistance, which enable the application of rare earths in magnesium alloys to be further developed and expand the application fields of magnesium alloys. Special magnesium-rare earth alloys are widely used in the electronics industry, automobile industry, military, aer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C23/06C22C1/02B22D37/00
Inventor 杨瑞芳王松涛崔昌华李鑫
Owner HUNAN RARE EARTH METAL MATERIAL RES INST
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