Annular magnetic hub for powder metallurgy and preparation method thereof
A powder metallurgy, ring-shaped technology, applied in the manufacture of stator/rotor body, magnetic circuit characterized by magnetic materials, etc., can solve the problems of low work efficiency, large volume, easy to heat, etc., to improve production efficiency, product quality High precision and improved magnetic permeability
Inactive Publication Date: 2010-12-29
吕元之
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The invention discloses an annular magnetic hub for powder metallurgy and a preparation method thereof, which are characterized in that: the annular magnetic hub is formed by circular rings; the inner diameter of each circular ring is 204.75 millimeters, the outer diameter of each circular ring is 213 millimeters, and the height of each circular ring is 24 millimeters; rectangular magnetic teeth with rectangular cross sections are arranged on the inner walls of the circular rings, and the width of each rectangular magnetic tooth is 3 millimeters; the distance between the adjacent rectangular magnetic teeth is 10.8 millimeters, and the rectangular magnetic teeth are 46; a groove of which the depth is between 0.01 and 0.2 millimeter and the width is between 1 and 3 millimeters is formed on the inner wall of the circular ring between the adjacent rectangular magnetic teeth; and the circular rings and the rectangular magnetic teeth comprise the following components in part by weight: 100 parts of pure iron powder and 0.5 to 1 part of lubricant. A finished product of the annular magnetic hub is formed by die manufacturing, mixing, press forming, sintering and finishing. The annular magnetic hub improves the magnetic conductivity greatly, so that the saturation induction density is the same as that of the magnetic hubs manufactured by silicon-steel plates.
Application Domain
Magnetic circuit characterised by magnetic materialsManufacturing stator/rotor bodies
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Property | Measurement | Unit |
Inner diameter | 204.75 | mm |
Outer diameter | 213.0 | mm |
Height | 24.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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