Room-temperature curing epoxy resin pouring sealant for permanent magnet motor as well as preparation method and process thereof

An epoxy resin, room temperature curing technology, used in the manufacture of motor generators, electromechanical devices, electrical components, etc., can solve the problems of high curing temperature, long curing time of potting glue, affecting the potting process, etc., and achieves the temperature resistance index high effect

Active Publication Date: 2012-01-04
ZHUZHOU TIMES ELECTRIC INSULATION
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional two-component epoxy resin potting glue has a long curing time and high curing temperature, which cannot meet the needs of the permanent magnet motor rotor glue potting process
However, there are two problems in most potting adhesives that cure quickly at room temperature: one is the insufficient reaction of the two components, which greatly reduces the heat resistance and strength after curing, which affects the safety and stability of the permanent magnet motor; the other is that Short curing times and correspondingly short operating times
Since the gap between the magnetic steel and the core punch is very small, the glue filling process takes a certain amount of time, and too fast curing will affect the glue filling process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of component A of epoxy resin:

[0039] Add 100 parts of bisphenol A epoxy resin into a 1L reaction kettle, and then add 10 parts of 1,4-butanediol diglycidyl ether, and 5 parts of fumed silica in turn, and stir for 10 minutes at 20 rpm to produce material.

[0040] (2) Preparation of curing agent B component:

[0041] Weigh 25 parts of diethylenetriamine, 15 parts of 4,4'-diaminodiphenylmethane and 10 parts of polyetheramine D-230 into a reaction kettle, and stir at 200 rpm for 10 minutes.

[0042] Accurately weigh 50g of the above-mentioned component A and 15g of the above-mentioned component B, and stir for 3 minutes to make a potting compound.

Embodiment 2

[0044] (1) Add 100 parts of bisphenol A epoxy resin to a 1L reaction kettle, and then add 15 parts of polyethylene glycol diglycidyl ether and 10 parts of fumed silica in turn, and stir for 10 minutes at a speed of 20rpm to produce material

[0045] (2) Preparation of curing agent B component:

[0046] Weigh 15 parts of tetraethylenepentamine, 10 parts of m-xylylenediamine and 5 parts of polyetheramine D-400 in a reaction kettle, and stir at 200 rpm for 10 minutes.

[0047] Accurately weigh 50g of the above-mentioned component A and 15g of the above-mentioned component B, and stir for 3 minutes to make a potting compound.

Embodiment 3

[0049] (1) Preparation of epoxy resin component A: same as in Example 1

[0050] (2) Preparation of curing agent B component:

[0051] Weigh 20 parts of diethylaminopropylamine, 15 parts of 4,4'-diaminodiphenylmethane and 10 parts of polyetheramine T-403 in a reaction kettle, and stir at 200 rpm for 10 minutes.

[0052] Accurately weigh 50g of the above-mentioned component A and 15g of the above-mentioned component B, and stir for 3 minutes to make a potting compound.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a room-temperature curing epoxy resin pouring sealant for a permanent magnet motor as well as a preparation method and process thereof. According to the invention, the resin comprises an epoxy resin A component and a curing agent B component, wherein the epoxy resin A component comprises the following ingredients in parts by weight: 100 parts of bisphenol A epoxy resin, 10-15 parts of active diluent and 5-10 parts of thixotropic agent; the curing agent B component comprises the following ingredients in parts by weight: 15-25 parts of fatty amine, 10-15 parts of modified aromatic amine and 5-10 parts of polyether amine. According to the invention, when in use, the epoxy resin A component and the curing agent B component are mixed in a proportion of (3-4):1 and then poured into the pretreated permanent magnet motor. The epoxy resin pouring sealant has the characteristics of high heat resistance, high strength and long operation time, and can be cured at room temperature; and the sealant pouring process is unique and novel, is simple and safe to operate, and the fixation problem of magnetic steel in a permanent magnet motor rotor can be well solved by the sealant pouring process.

Description

technical field [0001] The invention relates to a potting glue, a preparation method thereof and a glue pouring process, in particular to a room temperature curing epoxy resin potting glue for a permanent magnet motor, a preparation method and a glue potting process. Background technique [0002] The permanent magnetism of the permanent magnet motor rotor is provided by magnet steel material inserted in the slots of the core punches. During the operation of the motor, the rotor rotates at high speed, and the unfixed magnetic steel is displaced inside the rotor, which destroys the dynamic balance of the rotor and directly affects the stability of the motor. This problem can be solved by filling the gap between the magnetic steel and the iron core punching sheet with potting glue and fixing it. [0003] The use environment of permanent magnet motors has high requirements on the heat resistance and strength of the potting compound, and two-component epoxy resin potting compoun...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08G59/50C08G59/22C08K3/36H02K15/12
Inventor 田苗王新剑张步峰李鸿岩史文波
Owner ZHUZHOU TIMES ELECTRIC INSULATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap