Technique for recycling reject magnetic materials

A magnetic material and product recycling technology, applied in the direction of inorganic material magnetism, inductor/transformer/magnet manufacturing, electrical components, etc., can solve the problems of poor environmental protection, poor economic benefits, waste of energy, etc., achieve good environmental protection, increase output value and profit , the effect of reducing production costs

Inactive Publication Date: 2012-10-24
JIANGSUSR MAGNETIC MATERIAL & DEVICE ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the process of realizing the present invention, the inventor found that there are at least defects such as waste of energy, poor environmental protection and poor economic benefits in the prior art

Method used

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  • Technique for recycling reject magnetic materials
  • Technique for recycling reject magnetic materials

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Experimental program
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Embodiment 1

[0031] According to an embodiment of the present invention, a process for recycling and reusing poor magnetic material products is provided. Such as figure 2 As shown, this embodiment includes:

[0032] Step 200: Classification; that is, according to the type of magnetic material (power type and high permeability type), the same type of defective magnetic material products containing ferrous oxide, manganese oxide and zinc oxide of different sizes and shapes are processed Sort and clean up (ie, impurity removal treatment) to ensure that the defective magnetic material products after the impurity removal treatment are free of other impurities except the magnetic core;

[0033] Step 201: Coarse vibration grinding; that is, use a vibration grinder to vibrate the defective magnetic material products after classification and impurity removal treatment to obtain coarse materials with a particle size of no more than 10 μm; the finer the vibration grinding, the shorter the following Sand...

Embodiment 2

[0047] In this embodiment, the recycling process of the defective magnetic material product includes:

[0048] Step 1: Classification; that is, according to the type of magnetic material (power type and high permeability type), the same type of defective magnetic material products containing ferrous oxide, manganese tetraoxide and zinc oxide of different sizes and shapes are processed Sort and clean up (ie, impurity removal treatment) to ensure that the defective magnetic material products after the impurity removal treatment are free of other impurities except the magnetic core;

[0049] Step 2: Coarse vibration grinding; that is, use a vibration mill to vibrate and grind the classified and impurity-free magnetic material products to obtain a coarse material with a particle size of no more than 10 μm; the finer the vibration grinding, the shorter the following Sanding time

[0050] Step 3: Fine sanding; that is, use a sand mill to sand the coarse material obtained from the vibrator...

Embodiment 3

[0063] In this embodiment, the recycling process of the defective magnetic material product includes:

[0064] Step 1: Classification; that is, according to the type of magnetic material (power type and high permeability type), the same type of defective magnetic material products containing ferrous oxide, manganese tetraoxide and zinc oxide of different sizes and shapes are processed Sort and clean up (ie, impurity removal treatment) to ensure that the defective magnetic material products after the impurity removal treatment are free of other impurities except the magnetic core;

[0065] Step 2: Coarse vibration grinding; that is, use a vibration mill to vibrate and grind the classified and impurity-free magnetic material products to obtain a coarse material with a particle size of no more than 10 μm; the finer the vibration grinding, the shorter the following Sanding time

[0066] Step 3: Fine sanding; that is, use a sand mill to sand the coarse material obtained from the vibratio...

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Abstract

The invention discloses a technique for recycling reject magnetic materials. The technique comprises the steps: conducting classification, impurity removal and grinding treatments on the reject magnetic materials, thus obtaining magnetic core fine powder with average particle size of no more than 2mum; adding raw magnetic materials with10-30% of total weight of magnetic core fine powder contained in a stirring pond, as well as PVA glue with 8-12% of total weight of magnetic core fine powder and the raw magnetic materials, regulating the formula of mixture of the magnetic core fine powder and the raw magnetic materials according to the properties of the needed magnetic material products, and evenly stirring, and conducting spray granulation into granulated powder with granularity of 40-160 meshes; conditioning to obtain finished granulated powder with moisture content of 0.3-0.5% and flowing angel smaller than 30 degrees, pressing into the needed magnetic material products, and conducting low-temperature sintering treatment under conditions of temperature of 1200-1280 DEG C. The technique has the advantages of being capable of realizing energy resources and being good in environment friendliness and economic benefit.

Description

Technical field [0001] The invention relates to the technical field of magnetic material processing, in particular to a process for recycling and reusing defective magnetic material products. Background technique [0002] In the manufacturing process of magnetic material products, the production pass rate cannot reach 100%, and certain defective products are bound to occur. [0003] Such as figure 1 As shown, the existing production process of magnetic material products includes steps 100 to 110, specifically: configuring magnetic materials according to product performance requirements; sequentially performing strong mixing, rolling, pre-sintering, and coarse vibration grinding on the obtained magnetic materials , Fine sanding, glue addition, spray granulation, humidity control, molding and sintering treatment. In the fine sanding treatment, a co-solvent needs to be added. [0004] According to statistical calculations, the weight of the magnetic core products completed by the appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/36H01F41/02C04B35/626C04B35/64
Inventor 赵新江
Owner JIANGSUSR MAGNETIC MATERIAL & DEVICE ENG TECH RES
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