Green energy

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Application Case

The global wind turbine market have forced manufacturers to reduce manufacturing costs in recent years, improve efficiency, and create strong design capabilities for continuous services.The power conversion efficiency of wind turbines and electric generators can be improved by using suitable permanent magnet materials in wind turbines.In addition, selecting the right magnetic material and manufacturing it to the right specifications ensures that it is resistant to high temperature degaussing. The next generation of wind turbines is being studied, using permanent magnet generators and axial flux couplers.The overall purpose of the design is to improve efficiency by reducing friction.?Magnetic couplers are currently used in many applications, but their greater potential is still being explored. ?Our?high quality neodymium magnets are being used in large commercial wind turbines to ensure high energy efficiency and good reliability for the entire generator system.

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Technical Requirement

Servicelife

220 years

Grade

35UH, 38UH, 35EH, 38EH

Magnetic Flux Consistency

Testing fux in the same testing equipment in the room temperature. The maximum deviation     value of flux is less than3%

Thermal demagnetization

Test conditions; baking 2 hoursin 180C

Eligibility criteria: The average value of the fluw ireversible loss is less than 1% in the same motor, and the fux   freversible loss of single magnet is less than 2%

Weight Loss

HAST Testing(unsaturated humidity, without coating)

Test conditions: Temp:120C. Pressure: 0.27MPa Humidity: 80% Testing time. 240hours.

Eligibility criteria: the average value of weight loss is less than 2mg/cm? in the same motor, and weight loss of single    magnet is less than 3mg/cmf

Coating

High Temperature Resistant Testing:

Test conditions : baking 2 hoursin 250C

Eligibilty criteria: no blistering and no discoloring

 

Cold and Hot Shock Testing

Test conditions : keeping 150C for 30mins, and then keeping -50^C for 30mins which is one cycleTesting 240 cycles.Eligibility criteria: no peeling, 

no blistering and no rust

 

Test conditions:

Temp :85*C. Humidity : 85%. Testing time: 240hoursEligibility criteria: no peeling,

no blistering and no rust

 

PCT Testing(saturated humidity, with coating)

Test conditions: Temp:120*C. Pressure: 0.27MPa. Humidity: 100%. Testing time: 168hoursEigibility criteria: no peeling,

no blistering and no rust

 

Salt Spray Test

Test conditions: Temp.:35"C. NaC:.5%. PH:6.5-7.2, Testing time: 2300hoursEligibility criteria: no peeling,

no blistering and no rust


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