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A kind of silicon steel environment-friendly insulating coating for drive motor of new energy vehicle and preparation method thereof

A technology for new energy vehicles and drive motors, applied in anti-corrosion coatings, coatings, etc., to achieve excellent insulation performance, improved compactness, and improved welding performance

Active Publication Date: 2021-05-14
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new energy vehicle drive motor silicon steel environmental protection insulating coating and its preparation method, to replace the currently used Cr 6+ of insulating coatings, which solve the Cr 6+ environmental problems caused by

Method used

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  • A kind of silicon steel environment-friendly insulating coating for drive motor of new energy vehicle and preparation method thereof
  • A kind of silicon steel environment-friendly insulating coating for drive motor of new energy vehicle and preparation method thereof
  • A kind of silicon steel environment-friendly insulating coating for drive motor of new energy vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A new energy vehicle drive motor silicon steel environmental protection insulation coating, including the following raw materials by weight percentage:

[0048] Water-soluble acrylic resin 18%;

[0049] Sodium Allyloxy Hydroxypropyl Sulfonate 2%;

[0050] Al(H 2 PO 4 ) 3 15%;

[0051] Boric acid 6%;

[0052] Modified nano-SiO 2 14%;

[0053] Ethylene glycol 6%;

[0054] Auxiliary 2%;

[0055] The balance is deionized water, and the sum of each raw material is 100%; the auxiliary agent includes 0.3% dispersant, 0.5% wetting agent, 0.2% leveling agent, 0.5% film-forming auxiliary agent and 0.5% defoamer.

[0056] The modified nano-SiO 2 The preparation method is: take 30g of deionized water into the reactor, add 20g of nano-SiO 2 , add 50g of polytetrafluoroethylene emulsion under the high-speed dispersion condition of 800r / min, and stir for 30min under the condition of increasing the speed to 1200r / min, the prepared modified nano-SiO 2 spare;

[0057] The ...

Embodiment 2

[0061] A new energy vehicle drive motor silicon steel environmental protection insulation coating, including the following raw materials by weight percentage:

[0062] Water-soluble silicone acrylic resin 12%;

[0063] Sodium Allyloxy Hydroxypropyl Sulfonate 3%;

[0064] Mg(H 2 PO 4 ) 2 18%;

[0065] Lithium borate 5%;

[0066] Modified nano-SiO 2 12%;

[0067] Glycerol 5%;

[0068] Auxiliary 6%;

[0069] The balance is deionized water, and the sum of each raw material is 100%; the auxiliary agent includes 1.5% dispersant, 2.0% wetting agent, 1.0% leveling agent, 1.0% film-forming auxiliary agent and 0.5% defoamer.

[0070] The modified nano-SiO 2 The preparation method is: take 30g of deionized water into the reactor, add 20g of nano-SiO 2 , add 50g of polytetrafluoroethylene emulsion under the high-speed dispersion condition of 800r / min, and stir for 30min under the condition of increasing the speed to 1200r / min, the prepared modified nano-SiO 2 spare;

[0071...

Embodiment 3

[0075] A new energy vehicle drive motor silicon steel environmental protection insulation coating, including the following raw materials by weight percentage:

[0076] Water-soluble epoxy resin 8%;

[0077] Sodium Allyloxy Hydroxypropyl Sulfonate 2%;

[0078] Zn(H 2 PO 4 ) 2 20%;

[0079] Sodium borate 5%;

[0080] Modified nano-SiO 2 9%;

[0081] Butanthritol 4%;

[0082] Auxiliary 4%;

[0083] The balance is deionized water, and the sum of each raw material is 100%; the auxiliary agent includes 1.0% dispersant, 1.2% wetting agent, 0.8% leveling agent, 0.5% film-forming auxiliary agent and 0.5% defoamer.

[0084] The modified nano-SiO 2 The preparation method is: take 30g of deionized water into the reactor, add 20g of nano-SiO 2 , add 50g of polytetrafluoroethylene emulsion under the high-speed dispersion condition of 800r / min, and stir for 30min under the condition of increasing the speed to 1200r / min, the prepared modified nano-SiO 2 spare;

[0085] The prep...

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Abstract

The invention discloses a silicon steel environment-friendly insulating coating for a driving motor of a new energy vehicle and a preparation method thereof, comprising the following raw materials by weight: 5%-30% of water-soluble resin; 1%-1% of sodium allyloxy hydroxypropyl sulfonate 5%; dihydrogen phosphate 8%-30%; boron compound 1%-6%; modified nano-SiO 2 4% to 18%; cosolvent 1% to 10%; auxiliary agent 1% to 10%; the balance is deionized water, and the sum of the raw materials is 100%. Replacing the currently used Cr-containing 6+ of insulating coatings that address the Cr 6+ environmental problems caused. At the same time, it ensures that the coating has good insulating properties, heat resistance, corrosion resistance and excellent adhesion, especially weldability and inter-layer resistance, which can meet the performance requirements of special silicon steel coatings in the field of new energy vehicles.

Description

technical field [0001] The invention belongs to the technical field of coating preparation for silicon steel, and in particular relates to an environmentally friendly insulating coating for silicon steel used in driving motors of new energy vehicles and a preparation method thereof. Background technique [0002] Non-oriented silicon steel is mainly used in the manufacture of iron cores such as generators, motors, telecommunications equipment and new energy vehicle drive motors. It is an important soft magnetic alloy with extremely low carbon content that is indispensable in the fields of electronics, electric power, military industry and new energy vehicles. . The quality level of silicon steel directly affects the performance of the motor, and iron loss is the main indicator to measure the performance of silicon steel products. Iron loss mainly includes three parts: hysteresis loss, eddy current loss and abnormal loss. In order to reduce the influence of eddy current loss ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D5/08C09D5/25C09D7/61C09D7/62
CPCC09D4/06C09D5/00C09D5/08C09D7/61C09D7/62
Inventor 张振海夏雪兰王立涛裴英豪刘青松祁旋
Owner MAANSHAN IRON & STEEL CO LTD
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