HANNOVER MESSE 2019,
01 - 05 April
Powder Metallurgy Institute
Purpose: replacement of high-speed jet engines collector motors.Application - from vacuum cleaners, fans, hand power tools, lawn mowers to industrial applications in cars, tractors, etc. Series geared motors, each of which provides a certain output speeds, you can replace a jet engine with a variable part of the rotation, cover the entire range of speeds of rotation of the output shaft.The main advantages of developed jet valve motor generatorsSimplicity of designHigh maintainabilityThe absence of permanent magnetsThe rotor winding is notA small amount of copperThe thermal emission occurs generally only on a stator, the tight design, air or water cooling thus is easily providedHigh weight and sizesLow labor intensityFlexible layoutHigh reliabilityNew composite materials based on magnetic iron powder ferrittal can successfully replace the laminated electromagnetic steel for many high-frequency applications, in products such as transformers inductors, modern gated high-speed electric motors and generators.The main advantage of the new material in front of the electromagnetic steel is the lack of eddy current losses at high frequencies due to the electrical isolation of individual iron particles in the composite material. Characterised by large linear magnetic characterization of new materials, compared with e/m steel, may be the deciding factor in their choice, and for low-frequency (50 Hz) applications.You can also note the high technology and ease of manufacture cores by pressing of powders, no loss of material in the manufacture of products as compared to the manufacture of laminated cores insulated steel.Using commercially available powders of pure iron (eg, ASC100.29 company Hoganas AG, Sweden). The surface of the individual iron particles covered with a ferrite coating. The particle size of 40 to 150mkm. The average thickness of the ferrite layer - from 1 to 3 nm.
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