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A kind of high penetration bonded magnet and preparation method thereof

A technology of bonded magnets and magnetic powders, applied in the field of magnetic therapy, can solve the problems of low operating temperature, low magnetic storage capacity and high demagnetization rate, and achieve the effects of extending service life, excellent mechanical properties and good corrosion resistance.

Active Publication Date: 2020-03-31
山东康汇健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the penetrating power of magnetism in some existing magnetic therapy products is low, it can only act on the surface of the skin, and cannot penetrate the whole human body, and it is easy to demagnetize, which affects the effect of magnetic therapy
Since magnetic products are often in contact with the human body and will be corroded by sweat, the magnet is easily corroded
In order to improve these bonded NdFeB magnets, there are disadvantages such as high price, high temperature coefficient, low operating temperature, and poor environmental stability.
[0004] At the same time, the existing technology still has the disadvantages of high energy consumption, long processing process, low efficiency, low magnetic storage capacity, poor flexibility, poor mechanical properties, and large thickness; the flexible magnet prepared by the calendering process also has the disadvantages of magnetic powder and base material. The bonding strength is low, and the magnetic powder is easy to fall off from the surface of the magnet, resulting in a decrease in magnetic properties and a high demagnetization rate, which greatly affects the magnetic properties.
[0005] Therefore, it is necessary to invent a bonded magnet to overcome the current shortcomings of low penetration, unstable magnetic properties, low magnetic storage capacity, high demagnetization rate, low corrosion resistance, poor mechanical properties, and large thickness.

Method used

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  • A kind of high penetration bonded magnet and preparation method thereof
  • A kind of high penetration bonded magnet and preparation method thereof
  • A kind of high penetration bonded magnet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] A high-penetration bonded magnet, the mass ratio of the components of the bonded magnet is as follows: 48 parts of magnetic powder, 4 parts of chlorinated polyethylene and 0.4 part of epoxy soybean oil.

[0070] A preparation method of a high penetration bonded magnet, comprising the following steps:

[0071] (1) Take each component according to the ratio of parts by mass, and grind a quarter of the magnetic powder at 30°C for 1 hour to obtain component A;

[0072] Add component A, remaining magnetic powder, epoxidized soybean oil and chlorinated polyethylene into the mixer and mix thoroughly for 8 minutes, then take out mixture 2;

[0073] (2) Use an internal mixer for internal mixing, the pressure is 0.8Mpa, the rotor speed is 75r / min, and the temperature is set at 110°C. Put the mixture 2 into the internal mixing chamber first, and after internal mixing for 3 minutes, raise the temperature to 135°C for internal mixing 5 minutes, then lower the temperature to 120°C, ...

Embodiment 2

[0079] A high-penetration bonded magnet. The mass ratio of the components of the bonded magnet is as follows: 64 parts of magnetic powder, 4 parts of chlorinated polyethylene, and 0.4 part of epoxy soybean oil.

[0080] A preparation method of a high penetration bonded magnet, comprising the following steps:

[0081] (1) Take each component according to the ratio of parts by mass, and grind a quarter of the magnetic powder at 30°C for 1 hour to obtain component A;

[0082] Add component A, remaining magnetic powder, epoxidized soybean oil and chlorinated polyethylene into the mixer and mix thoroughly for 8 minutes, then take out mixture 2;

[0083] (2) Use an internal mixer for internal mixing, the pressure is 0.8Mpa, the rotor speed is 75r / min, and the temperature is set at 110°C. Put the mixture 2 into the internal mixing chamber first, and after internal mixing for 3 minutes, raise the temperature to 135°C for internal mixing 5 minutes, then lower the temperature to 120°C,...

Embodiment 3

[0089] A high-penetration bonded magnet, the mass ratio of the components of the bonded magnet is as follows: 80 parts of magnetic powder, 4 parts of chlorinated polyethylene and 0.4 part of epoxy soybean oil.

[0090] A preparation method of a high penetration bonded magnet, comprising the following steps:

[0091] (1) Take each component according to the ratio of parts by mass, and grind a quarter of the magnetic powder at 30°C for 1 hour to obtain component A;

[0092] Add component A, remaining magnetic powder, epoxidized soybean oil and chlorinated polyethylene into the mixer and mix thoroughly for 8 minutes, then take out mixture 2;

[0093] (2) Use an internal mixer for internal mixing, the pressure is 0.8Mpa, the rotor speed is 75r / min, and the temperature is set at 110°C. Put the mixture 2 into the internal mixing chamber first, and after internal mixing for 3 minutes, raise the temperature to 135°C for internal mixing 5 minutes, then lower the temperature to 120°C, ...

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Abstract

The invention discloses a high-penetration bonded magnet, and relates to the technical field of magnet therapy. According to the technical scheme, the bonded magnet components comprise magnetic powder, chlorinated polyethylene, nanometer polytetrafluoroethylene, nanometer zirconium carbide, polypropylene, sodium 2, 2'-methylene-bis-(4, 6-di-tert-butylphenyl)phosphate, nanometer silicon dioxide, epoxidized soybean oil and polyaspartic acid. The high-penetration bonded magnet has the beneficial effects as follows of high efficiency, excellent magnetic performance and stability, low demagnetization rate, high penetrating power, high processability, proper thickness, high mechanical performance, easy stamping, punching and winding, convenience in popularization, and can be made into products of different shapes and dimensions; and in addition, the product is wide in application range, and can be applied to a mattress, a seat cushion, a backrest, a sofa cushion, a toilet seat cushion and the like.

Description

technical field [0001] The invention relates to the technical field of magnetic therapy, in particular to a high-penetration bonded magnet and a preparation method thereof. Background technique [0002] Magnetic therapy can promote the body's metabolism, activate cells, thereby accelerating the excretion of intracellular waste and harmful substances, balance endocrine, promote blood circulation, improve microcirculation, promote inflammation, eliminate inflammation, swelling and pain, adjust blood pressure, and lower blood pressure Function, improve the oxygen-carrying capacity of red blood cells, reduce blood viscosity, enhance and improve human immunity, improve the body's resistance to disease, anti-aging effect, eliminate free radicals in the body, improve blood lipid metabolism, reduce cholesterol, eliminate Fatigue, promote physical recovery, calm the nervous system, eliminate insomnia and mental tension. In recent years, magnetic therapy has developed rapidly due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/02H01F41/02C08L23/28C08L91/00C08L27/18C08K3/22
CPCC08K2003/2265C08K2201/01C08L23/286C08L2205/03H01F7/0205H01F7/021H01F41/0253H01F41/0266C08L91/00C08K3/22C08L27/18
Inventor 付晓东姚鼎山
Owner 山东康汇健康科技有限公司
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