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Method for preparing ferro-silicon-boron amorphous magnetic conductive adhesive

An iron-silicon-boron and amorphous technology is applied in the field of polymer glue preparation, which can solve the problems of magnetic flux, small calorific value, magnetic conductive glue, etc. in the magnetic circuit of the iron core, and achieve the effect of improving the magnetic flux, small calorific value, and excellent magnetic conductivity.

Active Publication Date: 2014-04-23
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, when the magnetic conductive adhesive is applied to the bonding of amorphous magnetic devices, it can play the role of fixing and bonding, but there is no magnetic conductive adhesive that can increase the magnetic flux of the iron core magnetic circuit, reduce loss, and generate less heat. glue report

Method used

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  • Method for preparing ferro-silicon-boron amorphous magnetic conductive adhesive
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Embodiment

[0031] The method for preparing the iron-silicon-boron amorphous magnetic-permeable adhesive provided in this embodiment includes the following steps:

[0032] Step 1, crushing the amorphous strip into powder by mechanical crushing method, sieving out different particle sizes, and mixing the powders according to the powder particle size ratio range and weight content in Table 1;

[0033] Step 2: heat-treat the mixed powder in a nitrogen protective atmosphere at 450°C for 50 minutes, add acetone solvent, stir and mix evenly, and then pour it into a high-pressure reactor;

[0034] Step 3, adding quality to the autoclave is the adhesive matrix material epoxy resin E-20 of 7 times of the amorphous mixed powder in step 1 and 2% mineralizer concentrated hydrochloric acid (concentration is 35%), and supplement Add an appropriate amount of acetone to make the material in the reactor account for 75% of the volume. Under the condition of stirring, heat the reactor to 70°C and keep it wa...

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Abstract

The invention relates to a preparation method of a high molecular adhesive having a good magnetic conduction function, and in particular relates to a method for preparing a ferro-silicon-boron amorphous magnetic conductive adhesive. The method comprises the following steps: I, smashing an amorphous belt material into powder, and mixing according to certain granularity and weight content; II, thermally treating the mixed powder under a nitrogen protection atmosphere, adding a solvent, stirring uniformly, and pouring into a high-pressure reaction kettle; III, adding an adhesive substrate material and a mineralizing agent into the high-pressure reaction kettle, replenishing the solvent, heating while stirring, and preserving heat; and IV, stopping heating, cooling to normal temperature, opening the reaction kettle, taking a mixed solution out, and performing vacuum drying to obtain the amorphous magnetic conductive adhesive. The prepared magnetic conductive adhesive has the characteristics of higher magnetic flux of the magnetic path of an iron core, lower loss and low heating value.

Description

technical field [0001] The invention relates to a preparation method of polymer glue with good magnetic conductivity function, in particular to a method for preparing iron-silicon-boron amorphous magnetic-conductive glue. Background technique [0002] Magnetic adhesive is an adhesive that adds magnetic fillers such as ferrite, carbonyl iron powder, etc. to the adhesive matrix, and has magnetic properties. As a magnetic composite material, magnetic conductive glue is mainly used for bonding between magnetic materials or devices. Amorphous FeSiB magnetic powder cores have the characteristics of high quality factor, low high-frequency loss, and low price, and have broad application prospects in the field of high-frequency inductor cores. Magnetic permeable glue is often used in the preparation of amorphous composite cores. [0003] Chinese invention patent CN 1962783A "A Preparation Method of Amorphous Nanocrystalline Magnetic Powder Magnetic Conductive Adhesive" discloses a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/04C09J9/00
Inventor 李维强江志滨纪杰王亚娜
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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