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Double high laminated concentrating flux plate and preparation method thereof

A magnetically conductive plate and high-level technology, applied in the direction of chemical instruments and methods, magnets, layered products, etc., can solve the problems of low strength, unsatisfactory, expensive, etc., and achieve the effect of high magnetic permeability

Active Publication Date: 2014-04-16
陕西美绝电气绝缘有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the products currently on the market are at the level of double low (low magnetic permeability, low strength) and single high (high magnetic permeability, low strength or high strength, low magnetic permeability), while double high magnetic permeability slot wedges (high magnetic permeability, High strength) so far needs to import foreign products at high prices (such as using Japanese MW-80A epoxy iron powder glass cloth cross laminated boards to be processed into magnetic slot wedges after sawing and grinding), which are expensive and far from meeting the needs of the domestic market

Method used

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  • Double high laminated concentrating flux plate and preparation method thereof
  • Double high laminated concentrating flux plate and preparation method thereof
  • Double high laminated concentrating flux plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Prepare raw materials:

[0026]

[0027] 2. Preparation of adhesive

[0028] Mix the raw materials ①-⑤ according to the formula, then raise the temperature to 80°C and start stirring, and at the same time reflux, the reflux temperature increases step by step, the temperature difference of each level is 15°C, and the holding time of each level is 2-3 Hours, when it rises to 200°C, keep it warm at 200±5°C for 3-5 hours to the end of the reaction; then add the raw material ⑥ and stir to dissolve for 1 hour, then cool to 50°C, and filter;

[0029] The method for determining the end point of the reaction is as follows: take a 1g sample, and use a knife method to test that the gelation time at 250±2° C. is 2-3 minutes.

[0030] 3. Preparation of magnetic powder

[0031] Mix ⑦-⑩ evenly.

[0032] 4. Glass Butterwax

[0033] Use glass cloth to carry out dewaxing in dewaxing machine, the temperature of dewaxing is 380 ℃, and the vehicle speed is 4 m / min.

[0034] 5. Us...

Embodiment 2

[0039] 1. Prepare raw materials:

[0040]

[0041] 2. Preparation of adhesive

[0042] Mix the raw materials ①-⑤ according to the formula amount, then raise the temperature to 80°C and start stirring, and at the same time reflux it, the reflux temperature increases step by step, the temperature difference of each level is 25°C, and the holding time of each level is 3 hours. When it rises to 200°C, keep it warm at 200±5°C for 3-5 hours until the end of the reaction; then add raw material ⑥ and stir to dissolve for 1 hour, then cool to 50°C and filter;

[0043] The method for determining the end point of the reaction is as follows: take a 1g sample, and use a knife method to test the gelation time at 250±2°C for 2-3 minutes.

[0044] 3. Preparation of magnetic powder

[0045] Mix ⑦-⑩ evenly.

[0046] 4. Glass Butterwax

[0047] Use glass cloth to carry out dewaxing in dewaxing machine, the temperature of dewaxing is 430 ℃, and the vehicle speed is 4-5 m / min.

[0048] 5. ...

Embodiment 3

[0053] 1. Prepare raw materials:

[0054]

[0055] 2. Preparation of adhesive

[0056] Mix the raw materials ①-⑤ according to the formula, then raise the temperature to 80°C and start stirring, and reflux at the same time, the reflux temperature increases step by step, the temperature difference of each level is 20°C, and the holding time of each level is 2.5 hours. When it rises to 200°C, keep it warm at 200±5°C for 3-5 hours until the end of the reaction; then add raw material ⑥ and stir to dissolve for 1 hour, then cool to 50°C and filter;

[0057] The method for determining the end point of the reaction is as follows: take a 1g sample, and use a knife method to test the gelation time at 250±2°C for 2-3 minutes.

[0058] 3. Preparation of magnetic powder

[0059] Mix ⑦-⑩ evenly.

[0060] 4. Glass Butterwax

[0061] Use glass cloth to carry out dewaxing in dewaxing machine, the temperature of dewaxing is 380-430 ℃, and the vehicle speed is 4.5 m / min.

[0062] 5. Appl...

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Abstract

The invention discloses a double high laminated concentrating flux plate and relates to a laminated composite plate, which consists of a glass cloth layer and a concentrating flux powder layer. Gluing treatment is implemented on the glass cloth through an adhesive; and the glass cloth before gluing is treated by a coupling agent firstly. The double high laminated concentrating flux plate is characterized in that KH550, KH560 or KH570 is adopted as the coupling agent. The performances of high strength and high flux permeability can be realized by using materials with low cost. The flux permeability of the double high laminated concentrating flux plate is 9-11 under the magnetic field intensity of 100 Oe and the flexural strength of the double high laminated concentrating flux plate under a thermal state of 155 DEG C is 160-203MPa.

Description

【Technical field】 [0001] The invention relates to a magnetically conductive plate laminated with organic materials, inorganic materials and magnetically permeable materials. The magnetically permeable plate is mainly used for making magnetic slot wedges used in motors and generators. 【Background technique】 [0002] At present, it is recognized at home and abroad that replacing insulating slot wedges with magnetic slot wedges can improve the output efficiency of the motor, reduce iron loss and temperature rise, and prolong the service life of the motor. As we all know, the damage of the slot wedge of the motor is generally caused by the deformation and protrusion of the slot wedge in the thermal state. Therefore, the ideal magnetic slot wedge should have high thermal strength (slightly lower than the insulation plate strength, such as ≥150MPa thermal state) and high magnetic permeability. (100Oe magnetic field down to 9-11, >11 motor torque will drop). However, the produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B17/02B32B17/06B32B9/04B32B7/12C09J183/04C09J167/00C09J181/06H01F7/00
Inventor 杨联社杨楠
Owner 陕西美绝电气绝缘有限责任公司