A recovery and reuse process for bad magnetic material products

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: 2015-08-26
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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  • A recovery and reuse process for bad magnetic material products
  • A recovery and reuse process for bad magnetic material products

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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 bad 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 magnetic permeability type), the same type of defective magnetic material products containing ferric oxide, trimanganese tetroxide and zinc oxide of different sizes and shapes are sorted. Classify and tidy up (that is, impurity removal treatment), to ensure that the defective magnetic material products after impurity removal treatment have no other impurities except the magnetic core;

[0033] Step 201: Coarse vibrating grinding; that is, using a vibrating mill to vibrate and grind the defective magnetic material products after classification and impurity removal to obtain a coarse material with a particle size not greater than 10 μm; the finer the vibrating grinding, the shorter the subsequ...

Embodiment 2

[0047] In this embodiment, the recovery and reuse process of defective magnetic material products includes:

[0048] Step 1: Classification; that is, according to the type of magnetic material (power type and high magnetic permeability type), the same type of defective products of magnetic materials containing ferric oxide, manganese tetraoxide and zinc oxide of different sizes and shapes are sorted. Classify and tidy up (that is, impurity removal treatment), to ensure that the defective magnetic material products after impurity removal treatment have no other impurities except the magnetic core;

[0049] Step 2: Coarse vibrating grinding; that is, using a vibrating mill to vibrate and grind the defective products of magnetic materials after classification and impurity removal to obtain coarse materials with a particle size not greater than 10 μm; the finer the vibrating grinding, the shorter the subsequent sanding time;

[0050] Step 3: Fine sanding; that is, use a sand mill...

Embodiment 3

[0063] In this embodiment, the recovery and reuse process of defective magnetic material products includes:

[0064] Step 1: Classification; that is, according to the type of magnetic material (power type and high magnetic permeability type), the same type of defective products of magnetic materials containing ferric oxide, manganese tetraoxide and zinc oxide of different sizes and shapes are sorted. Classify and tidy up (that is, impurity removal treatment), to ensure that the defective magnetic material products after impurity removal treatment have no other impurities except the magnetic core;

[0065] Step 2: Coarse vibrating grinding; that is, using a vibrating mill to vibrate and grind the defective products of magnetic materials after classification and impurity removal to obtain coarse materials with a particle size not greater than 10 μm; the finer the vibrating grinding, the shorter the subsequent sanding time;

[0066] Step 3: fine sanding; that is, use a sand mill...

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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 defective magnetic material products. Background technique [0002] During the manufacturing process of magnetic material products, the production qualification rate cannot reach 100%, and certain defective products must be produced. [0003] Such as figure 1 As shown, the existing production process of magnetic material products includes steps 100 to 110, specifically: configure magnetic materials according to product performance requirements; configure the obtained magnetic materials, and then perform intensive mixing, rolling, pre-burning, and coarse vibration grinding , Fine sanding, glue addition, spray granulation, humidity control, molding and sintering treatment, in the fine sanding treatment, a cosolvent needs to be added. [0004] According to statistical calculations, the weight of the magnetic core products completed by t...

Claims

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Application Information

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Patent Type & Authority Patents(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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