Vacuum melting rapid hardening equipment and manufacturing method of rapidly hardened alloy

A technology of vacuum smelting and manufacturing method, which is applied in the manufacture of inductors/transformers/magnets, magnetic materials, electrical components, etc., can solve the problems of the influence of the magnetic properties of rare earth permanent magnet materials, the high content of oxygen and other impurities, and the inconvenience of the production process, etc. Achieve the effect of improving performance and consistency, improving utilization, and improving consistency

Active Publication Date: 2017-10-20
沈阳中北真空技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned non-remelting method of using waste is not only complicated in process, but also needs to prepare alloy powders of different compositions to adjust its composition and improve its sintering ability, which brings inconvenience to the production process
More importantly, in this waste utilization method, due to the lack of remelting, the powder made from the waste has a high content of oxygen and other impurities, which seriously affects the magnetic properties of the rare earth permanent magnet material.

Method used

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  • Vacuum melting rapid hardening equipment and manufacturing method of rapidly hardened alloy
  • Vacuum melting rapid hardening equipment and manufacturing method of rapidly hardened alloy
  • Vacuum melting rapid hardening equipment and manufacturing method of rapidly hardened alloy

Examples

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Effect test

Embodiment 1

[0048]The raw materials of praseodymium neodymium alloy, terbium metal, dysprosium iron, pure iron, ferroboron, gallium metal, zirconium metal, cobalt metal, aluminum metal and copper metal are formulated into Pr 6.3 Nd 23.1 Dy 2 Tb 0.6 B 0.95 co 1.2 Zr 0.12 Ga 0.1 al 0.2 Cu 0.2 Fe 余量 Put pure iron and ferroboron into No. 1 material basket, put pure iron, ferroboron and a small amount of praseodymium neodymium alloy into No. 2 material basket, put praseodymium neodymium alloy, dysprosium iron, metal terbium, and metal gallium Put the metal zirconium, metal cobalt, metal aluminum, and metal copper into the No. 4 material basket, and then the operation includes: (1) Send the 4 material baskets into the vacuum feeding chamber of the vacuum melting and quick-setting equipment, pump After vacuuming, open the vacuum valve between the vacuum feeding chamber and the vacuum melting chamber; (2) Through the cooperation of the lifting device, the 4-station turntable and the reci...

Embodiment 2

[0054] Raw materials containing praseodymium neodymium alloy, terbium metal, dysprosium iron, pure iron, ferroboron, gallium metal, zirconium metal, cobalt metal, aluminum metal, copper metal and NdFeB scrap are formulated into Pr 6.3 Nd 23.1 Dy 2 Tb 0.6 B 0.95 co 1.2 Zr 0.12 Ga 0.1 al 0.2 Cu 0.2 Fe 余量 The alloy raw materials, wherein, the NdFeB waste content accounts for 10-60% of the total weight; put pure iron and ferroboron into the No. 1 basket, put the NdFeB waste into the No. 2 basket, and melt the NdFeB The slag cleaning device is loaded into the No. 3 material basket, and the praseodymium-neodymium alloy, dysprosium iron, terbium metal, gallium metal, zirconium metal, cobalt metal, aluminum metal, and copper metal are loaded into the No. 4 material basket, and the subsequent operation steps include: (1) Send the material basket into the vacuum feeding chamber of the vacuum melting and quick-setting equipment, and open the vacuum valve between the vacuum feedi...

Embodiment 3

[0060] Raw materials containing rare earth alloys, pure iron, ferroboron and metal zirconium are formulated into alloys shown in Table 6 by weight percentage, pure iron and ferroboron are packed into No. 1 and No. 2 material baskets, and No. 3 rare earth alloys are packed into Material basket, put the metal zirconium into the No. 4 material basket, and the subsequent operations include: (1) Send the material basket into the vacuum feeding chamber of the vacuum melting and quick-setting equipment, and open the vacuum valve between the vacuum feeding chamber and the vacuum melting chamber after vacuuming ; (2) Through the cooperation of the lifting device, the 4-station turntable and the reciprocating trolley, the raw materials of No. 1 and No. 2 baskets are added to the crucible of the vacuum melting chamber under vacuum conditions, and heated to a temperature range of 600-1500 °C; (3) Add the raw materials of No. 3 and No. 4 baskets to the crucible of the vacuum melting chamber...

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Abstract

The invention discloses vacuum melting rapid hardening equipment and a manufacturing method of rapidly hardened alloy. The vacuum melting rapid hardening equipment comprises a vacuum feeding chamber, a vacuum melting chamber, a rotating roll moving chamber, an alloy plate cooling chamber and a storage device. A basket lifting mechanism, a multi-station rotary table and a trolley which moves in a reciprocating manner are arranged in the vacuum feeding chamber; during working, a water-cooled rotating roll device moves to the vacuum melting chamber from the rotating roll moving chamber; the alloy plate cooling chamber is connected with the vacuum melting chamber; a breaking device and a cooling drum are arranged in the alloy plate cooling chamber; and the storage device is connected with the alloy plate cooling chamber through a guiding valve. The manufacturing method of the rapidly hardened alloy can be used for manufacturing sintered neodymium iron boron rapidly hardened alloy, rapidly quenched neodymium iron boron permanent magnetic powder and soft magnetic nanocrystal magnetic powder, and can further be used for manufacturing neodymium iron boron permanent magnets by using neodymium iron boron waste materials.

Description

technical field [0001] The invention belongs to the field of advanced equipment, and in particular relates to a vacuum smelting quick-setting equipment and a method for manufacturing quick-setting alloys; the equipment and quick-setting alloy manufacturing method of the present invention can be used to manufacture rare earth permanent magnet quick-setting alloys and quick-quenched neodymium iron Boron permanent magnetic powder, metal soft rice powder, vacuum quick-setting alloy, etc. Background technique [0002] Rare earth permanent magnet materials are used more and more for their excellent magnetic properties, and are widely used in medical nuclear magnetic resonance imaging, computer hard drives, audio, mobile phones, etc.; with the requirements of energy saving and low-carbon economy, neodymium iron Boron rare earth permanent magnet materials have begun to be used in auto parts, household appliances, energy-saving and control motors, hybrid vehicles, wind power generati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B22D11/124H01F41/02H01F1/057
CPCB22D11/0697B22D11/124H01F1/0571H01F41/0266
Inventor 孙宝玉陈晓东段永利
Owner 沈阳中北真空技术有限公司
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