A kind of magnetic nanocrystalline glass solder and its preparation method and the method of using it to connect ferrite

A kind of glass solder and magnetic nano technology, which is applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of contradictory sustainable development concept, high connection temperature, and high softening temperature of magnetic glass, so as to ensure service stability , reduce the connection temperature, the effect of good mechanical properties

Active Publication Date: 2022-04-05
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional amorphous glass solder cannot meet the magnetic requirements of the weld because it is not magnetic itself. The magnetic phase generated by the magnetic glass solder after heat treatment can introduce magnetism, so it is the best choice for connecting ferrite
However, the softening temperature of magnetic glass is very high, requiring a higher connection temperature, which is contrary to the sustainable development concept of energy saving

Method used

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  • A kind of magnetic nanocrystalline glass solder and its preparation method and the method of using it to connect ferrite
  • A kind of magnetic nanocrystalline glass solder and its preparation method and the method of using it to connect ferrite

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Experimental program
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Effect test

specific Embodiment approach 1

[0030] 1. Analytical pure Bi 2 o 3 , CoO, Fe 2 o 3 and H 3 BO 3 Mix according to the mole percentage of 40:25:25:10, melt and cast it in a stainless steel grinding tool at 1200°C and keep it warm for 1h. Magnetic nanocrystalline glass solder.

[0031] 2. Cut the magnetic nanocrystalline glass solder into 1mm-thick solder sheets with a diamond wire saw. Then the 1mm-thick brazing material sheet was polished with #600, #800 and #1200 sandpaper in sequence, and then polished with a diamond polishing agent with a particle size of 1 μm at a speed of 500-600r / min to obtain a brazing filler metal with a thickness of 500 μm. sample.

[0032] 3. Cut the YIG cylindrical base material with a diameter of 9mm into a sample with a thickness of 2mm, and polish the surface of the base metal to be welded with #600, #800 and #1200 sandpaper in turn, and then use a diamond polishing agent with a particle size of 1μm. Polishing at a speed of 500-600r / min, and then pre-treating the surface...

specific Embodiment approach 2

[0036] 1. Analytical pure Bi 2 o 3 , CoO, Fe 2 o 3 and H 3 BO 3 Mix according to the mole percentage of 30:30:30:10, melt and cast it in a stainless steel grinding tool at 1200°C and keep it warm for 1h. Magnetic nanocrystalline glass solder.

[0037]2. Cut the magnetic nanocrystalline glass solder into 1mm-thick solder sheets with a diamond wire saw. Then the 1mm-thick brazing material sheet was polished with #600, #800 and #1200 sandpaper in sequence, and then polished with a diamond polishing agent with a particle size of 1 μm at a speed of 500-600r / min to obtain a brazing filler metal with a thickness of 500 μm. sample.

[0038] 3. Cut the YIG cylindrical base material with a diameter of 9mm into a sample with a thickness of 2mm, and polish the surface of the base metal to be welded with #600, #800 and #1200 sandpaper in turn, and then use a diamond polishing agent with a particle size of 1μm. Polishing at a speed of 500-600r / min, and then pre-treating the surface ...

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Abstract

The invention relates to a magnetic nanocrystalline glass solder, a preparation method thereof and a method for connecting ferrite using the same, belonging to the technical field of ferrite welding. The glass solder composition provided by the invention is xBi 2 o 3 ‑yCoO‑yFe 2 o 3 ‑10B 2 o 3 (mol.%, x=30-40, y=25-35), the physical and chemical properties of the glass solder are close to those of ferrite. In addition, this application adopts the composite connection between the magnetic solder sheet and the pre-melted base material of the low-temperature glass, while ensuring the reliable connection of the ferrite and the magnetic properties of the weld, it can realize the structural stability of the microwave ferrite device for long-term service. and performance stability. That is to say, the present invention can not only realize the unification of the electromagnetic properties of the glass weld and the ferrite base material, but also conform to the green concept of energy conservation and sustainable development, and has important application value for the connection of ferrite and the processing of microwave devices.

Description

technical field [0001] The invention relates to a magnetic nanocrystalline glass solder, a preparation method thereof and a method for connecting ferrite using the same, belonging to the technical field of ferrite welding. Background technique [0002] As a magnetic material, ferrite is widely used in high-frequency and microwave fields. With the development of microelectronics technology and the miniaturization of microwave devices, higher requirements are put forward for the connection of ferrite components. On the one hand, it is necessary to ensure that the weld and the base metal have similar dielectric properties and low dielectric loss, and at the same time ensure that the magnetic properties of the weld are similar to those of the ferrite base metal; on the other hand, it is necessary to ensure that the ferrite device has long-term service stability and good mechanical properties. The traditional amorphous glass solder cannot meet the magnetic requirements of the we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/24C03B25/00C03B5/16C04B37/00
CPCC03C8/24C03B5/16C03B25/00C04B37/003C04B2237/10
Inventor 林铁松陈倩倩何鹏林盼盼杜轩宇
Owner HARBIN INST OF TECH
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