Preparation method of composite rare earth permanent magnet material and anti-oxidation mixing equipment

Abstract

The invention relates to the technical field of rare earth permanent magnet materials, in particular to a preparation method of a composite rare earth permanent magnet material and anti-oxidation mixing equipment. Compared with the prior art, the preparation method disclosed by the invention is reasonable in design, has relatively high coercive force, compressive strength, residual magnetism and magnetic energy product, and solves the problem that the anti-oxidation efficiency is low when an existing method is used for powder preparation and mixing processes.

Description

technical field

[0001] The invention relates to the technical field of rare earth permanent magnet materials, in particular to a preparation method of a composite rare earth permanent magnet material and anti-oxidation mixing equipment. Background technique

[0002] Magnetic material, that is, a strong magnetic substance, is an ancient and widely used functional material, and the magnetism of the substance has been recognized and applied by people as early as 3000 years ago. For example, in ancient China, natural magnets were used as compass, and permanent magnet materials were used as An important part of magnetic materials, it plays an important role in the electronics industry, information industry, motorcycles, electric tools, automobile industry and other industries; it has been widely used in computers, mobile communications, advanced audio-visual equipment, micro-motors, sensors and magnetic Electrical instrumentation, office equipment, electronic clocks, electronic c...

Examples

Embodiment 1

[0037] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0038] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 48% of neodymium iron boron magnetic powder, 20% of ferrite magnetic powder, 8% of samarium cobalt magnetic powder, 4% of alnico magnetic powder, polytetrafluoroethylene 1.5%, potassium sorbate 0.4%, acrylate resin 8%, polyethylene terephthalate-1,4-cyclohexanedimethanol 6%, silane coupling agent 1.6%, titanate coupling Agent 1.3%, graphite 0.7%, barium stearate 0.5%;

[0039] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0040] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0041] Step 4, milling and mixing: use anti-oxidation mixing equipmen...

Embodiment 2

[0044] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0045] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 50% of neodymium iron boron magnetic powder, 22% of ferrite magnetic powder, 4% of samarium cobalt magnetic powder, 4% of alnico magnetic powder, and 0.7% of polytetrafluoroethylene %, potassium sorbate 0.3%, acrylate resin 8.5%, polyethylene terephthalate-1,4-cyclohexanedimethanol 6%, silane coupling agent 1.6%, titanate coupling agent 1.3%, graphite 0.8%, barium stearate 0.8%;

[0046] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0047] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0048] Step 4, milling and mixing: use anti-oxidation mixi...

Embodiment 3

[0051] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0052] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 44% of neodymium iron boron magnetic powder, 22% of ferrite magnetic powder, 8% of samarium cobalt magnetic powder, 6% of alnico magnetic powder, polytetrafluoroethylene 0.3%, potassium sorbate 0.4%, acrylate resin 8%, polyethylene terephthalate-1,4-cyclohexanedimethanol 7.5%, silane coupling agent 1.7%, titanate coupling Agent 1.3%, graphite 0.3%, barium stearate 0.5%;

[0053] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0054] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0055] Step 4, milling and mixing: use anti-oxidation mixing equipm...

technical field

[0001] The invention relates to the technical field of rare earth permanent magnet materials, in particular to a preparation method of a composite rare earth permanent magnet material and anti-oxidation mixing equipment. Background technique

[0002] Magnetic material, that is, a strong magnetic substance, is an ancient and widely used functional material, and the magnetism of the substance has been recognized and applied by people as early as 3000 years ago. For example, in ancient China, natural magnets were used as compass, and permanent magnet materials were used as An important part of magnetic materials, it plays an important role in the electronics industry, information industry, motorcycles, electric tools, automobile industry and other industries; it has been widely used in computers, mobile communications, advanced audio-visual equipment, micro-motors, sensors and magnetic Electrical instrumentation, office equipment, electronic clocks, electronic c...

Examples

Embodiment 1

[0037] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0038] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 48% of neodymium iron boron magnetic powder, 20% of ferrite magnetic powder, 8% of samarium cobalt magnetic powder, 4% of alnico magnetic powder, polytetrafluoroethylene 1.5%, potassium sorbate 0.4%, acrylate resin 8%, polyethylene terephthalate-1,4-cyclohexanedimethanol 6%, silane coupling agent 1.6%, titanate coupling Agent 1.3%, graphite 0.7%, barium stearate 0.5%;

[0039] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0040] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0041] Step 4, milling and mixing: use anti-oxidation mixing equipmen...

Embodiment 2

[0044] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0045] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 50% of neodymium iron boron magnetic powder, 22% of ferrite magnetic powder, 4% of samarium cobalt magnetic powder, 4% of alnico magnetic powder, and 0.7% of polytetrafluoroethylene %, potassium sorbate 0.3%, acrylate resin 8.5%, polyethylene terephthalate-1,4-cyclohexanedimethanol 6%, silane coupling agent 1.6%, titanate coupling agent 1.3%, graphite 0.8%, barium stearate 0.8%;

[0046] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0047] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0048] Step 4, milling and mixing: use anti-oxidation mixi...

Embodiment 3

[0051] A preparation method of a composite rare earth permanent magnet material, comprising the steps of:

[0052] Step 1, batching, a composite rare earth permanent magnet material includes the following raw materials in weight percentage: 44% of neodymium iron boron magnetic powder, 22% of ferrite magnetic powder, 8% of samarium cobalt magnetic powder, 6% of alnico magnetic powder, polytetrafluoroethylene 0.3%, potassium sorbate 0.4%, acrylate resin 8%, polyethylene terephthalate-1,4-cyclohexanedimethanol 7.5%, silane coupling agent 1.7%, titanate coupling Agent 1.3%, graphite 0.3%, barium stearate 0.5%;

[0053] Step 2, smelting: the prepared materials are respectively passed through the large furnace and the small furnace to cast flakes or ingots;

[0054] Step 3, hydrogen crushing: use the hydrogen absorption properties of rare earth metal compounds to fuse rare earth alloys in a hydrogen environment;

[0055] Step 4, milling and mixing: use anti-oxidation mixing equipm...

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