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Method for continuously and automatically producing magnesium-rare earth intermediate alloys

A rare earth master alloy, automatic production technology, applied in the control of molten metal pouring from the ladle, metal processing equipment, manufacturing tools, etc., can solve the problems of large smoke and serious pollution, and achieve no environmental pollution and high yield High, the effect of improving production safety

Active Publication Date: 2014-01-29
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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  • Method for continuously and automatically producing magnesium-rare earth intermediate alloys
  • Method for continuously and automatically producing magnesium-rare earth intermediate alloys
  • Method for continuously and automatically producing magnesium-rare earth intermediate alloys

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0051] 1) Raw material preparation: crush the rare earth metals into irregular small pieces of 5-10mm, pre-treat the surface of the magnesium ingots with jet sand polishing, remove scale and surface pollutants, cut some magnesium ingots into small pieces to 10-30cm for batching, and put The pretreated magnesium ingots are placed on the furnace cover of the continuous casting furnace and preheated to 80-100°C.

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

[0053] 3) Refining: Power on and set the progr...

specific Embodiment approach

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

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

[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°C, and add the prepared magnesium ingots to the nickel-free superalloy steel plate crucible firs...

Embodiment 3

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

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

[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°C, and add the prepared magnesium ingots to the nickel-free superalloy steel plate crucible Ins...

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Abstract

The invention discloses a method of continuously and automatically producing 16 magnesium-rare earth intermediate alloys such as a magnesium-neodymium intermediate alloy. The method comprises the following steps: after melting a magnesium ingot raw material by a finery, adding a rare earth metal material, manually deslagging, and automatically stirring and homogenizing by a system, and sampling and testing alloy components which are qualified; then pouring an alloy liquid to an ingot case of a pig moulding machine through a metering pump to form a continuous and automatic ingot casting; and cooling the alloy liquid to form standard magnesium-rare earth intermediate alloys. The key point of the invention is as follows: the method is applicable to continuous and automatic ingot casting production of 16 magnesium-rare earth intermediate alloys such as the magnesium-neodymium intermediate alloy, so that the labor intensity of production is reduced, and the production safety is greatly improved in anhydrous environment production. The produced product is consistent and high in yield. According to a crucible manufactured by a nickel-free high temperature alloy steel plate, carbon content is not introduced in the production process, the production efficiency is high, and the method is applicable to continuous production on a large scale, free from environmental pollution. Waste residues can be recycled, thereby truly realizing safe and efficient production of the magnesium-rare earth intermediate alloys on a large scale.

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 have been continuously recognized and mastered by people. At present, a series of magnesium alloys containing rare earths have been developed, which have unique properties such as high strength, heat resistance, and corrosion resistance, which further develops the application of rare earths in magnesium alloys and expands the application fields of magnesium alloys. Special magnesium-rare earth alloys are widely used in electronics industry, automobile industry, military an...

Claims

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Application Information

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Patent Type & Authority Applications(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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