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Method for preparing samarium cobalt permanent magnet material by using printing method

A technology of permanent magnetic materials and printing method, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of complex preparation process, collapse, and low forming rate of printed products, so as to improve the preparation efficiency, increase the forming rate, The effect of increasing the curing speed

Inactive Publication Date: 2019-04-09
王群华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process is more complex
[0005] 3D printing is used in the molding of magnetic materials, which is a new technology. In the process of 3D gel printing magnetic material products, chemical methods are used to cure them while printing, but because chemical curing takes a certain amount of time, the printing products There is a certain limit to the size of the printed product. If the size of the printed product is large, the product will not be fully cured during the printing process, and the material will continue to accumulate on the incompletely cured printing layer, resulting in defects such as collapse and deformation, making the forming rate of the printed product low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The samarium cobalt permanent magnet material main body of the present embodiment is by following composition by general formula: Sm(Co 0.97 Ti 0.03 ) 4.8 Si 0.2 .

[0021] According to the above general formula, each element is weighed for batching; the batching is placed in the melting furnace, and the vacuum in the furnace reaches at least 5×10 -3 Pa; Then, pass helium gas until the pressure in the furnace is 50kPa; heat up to 1300°C to melt, stir, refine and cast into water-cooled copper molds for use.

[0022] The obtained alloy ingot is crushed, put into the quartz tube in the vacuum belt throwing machine, the diameter of the nozzle at the bottom of the quartz tube is 0.5 mm, after the chamber of the vacuum belt throwing machine is evacuated, the cavity is filled with protective gas; Turn on the power supply of the vacuum strip machine to heat and melt the alloy in the quartz tube. At the same time, control the distance between the nozzle at the bottom of the ...

Embodiment 2

[0026] The samarium cobalt permanent magnet material main body of the present embodiment is by following composition by general formula: Sm(Co 0.9 Ti 0.1 ) 4.5 Si 0.5 .

[0027] According to the above general formula, each element is weighed for batching; the batching is placed in the melting furnace, and the vacuum in the furnace reaches at least 5×10 -3 Pa; Then, pass helium gas until the pressure in the furnace is 80kPa; heat up to 1450°C to melt, stir, refine, and then cast it into a water-cooled copper mold for use.

[0028] The obtained alloy ingot is crushed and put into the quartz tube in the vacuum strip machine. The diameter of the nozzle at the bottom of the quartz tube is 0.8mm. After the cavity of the vacuum strip machine is vacuumed, fill the cavity with protective gas; Turn on the power supply of the vacuum strip machine to heat and melt the alloy in the quartz tube. At the same time, control the distance from the nozzle at the bottom end of the quartz tube ...

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PUM

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Abstract

The invention discloses a method for preparing a samarium cobalt permanent magnet material by using a printing method. The ingredients of an SmCo5 alloy is adjusted by doping to obtain a large alloy ingredient supercooling degree, and anisotropic SmCo5 with a fine grain size is obtained in cooperation with a high-speed rapid quenching process; and in the method disclosed by the invention, chemicalcuring and photocuring are combined to shorten the curing time and improve the curing speed of the magnetic material, thereby improving the forming rate of a workpiece and improving the preparation efficiency of the magnetic material.

Description

Technical field [0001] The invention relates to the field of magnetic material manufacturing, in particular to a method for preparing samarium-cobalt permanent magnetic materials by printing. Background technique [0002] Rare earth permanent magnet materials refer to permanent magnet materials made of alloys formed of rare earth metals and transition metals through a certain process. Rare earth permanent magnet material is the permanent magnet material with the highest comprehensive performance known now, which is more than 100 times higher than the magnetic properties of the magnetic steel used in the 90th century, much superior to ferrite and AlNiCo, and more than The magnetic properties of expensive platinum-cobalt alloys are twice as high. Due to the use of rare earth permanent magnet materials, it not only promotes the miniaturization of permanent magnet devices and improves the performance of products, but also promotes the production of some special devices. Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/058
CPCH01F1/0557H01F1/058
Inventor 王群华
Owner 王群华
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