Powder for dust core, dust core made of the powder for dust core by powder compaction, and method of producing the powder for dust core
A technology of powder magnetic core and powder, applied in the field of powder magnetic core and powder magnetic core, can solve the problem of reducing the density of the powder magnetic core, and achieve the effect of high insulation performance
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[0059] Preferred implementations of the powder for powder magnetic cores, the powder magnetic cores produced from the powder for powder magnetic cores by powder compaction, and the production method of the powder for powder magnetic cores that realize the present invention will now be given with reference to the accompanying drawings. A detailed description of the example.
[0060]
[0061] figure 1 It is a conceptual diagram of the cross-section of the powder (particle) 1 for powder magnetic cores in this example. figure 2 It is a conceptual diagram illustrating a state in which silica powder (particles) 8 are diffusely bonded to silicon-impregnated layer 3 .
[0062] Such as figure 1 As shown, powder 1 for a dust core ("dust core powder") includes a silicon dioxide diffusion bonding layer 5 and a silicon coating 6 covering iron powder 2 (an example of a soft magnetic metal powder). Silica diffusion bonded layer 5 includes silicon permeated layer 3 formed of silicon e...
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