The development of high performance powder metallurgy soft m
Writer： admin Source： MDM Date：2016-04-22
The development of high performance powder metallurgy soft magnetic materials
Traditional powdered iron core in order to maintain its insulation must be added a lot of resin, often results in low density
and magnetism can not expected. In order to improve the situation, experts have been researching and developing the
solution that can reduce the resin content, as well as to keep products insulation performance. Now has developed the
technology coating insulating film directly on the surface of magnetic powder. Include coating with 1~ 00 nm thin
phosphate cladding on the magnetic powder surface by chemical treatment method. By adding a tiny amount of resin can
obtain high insulation and high magnetic properties of powder metallurgy soft magnetic materials. Under the situation of
rapid growth modern market demand of soft magnetic materials, basis on powder metallurgy method using surface coated
insulating film magnetic powder, by selecting the combination of resin and improve manufacturing technology to produce
high magnetic flux density and high resistance of powder metallurgy soft magnetic material is becoming more and more
important.
Currently, the market size of soft magnetic material is very big, in the Japanese market size is more than billions of Yen.
Modern high-performance soft magnetic materials make the miniaturization of electrical products and the use of 3d
magnetic circuit design of advanced motor manufacturing become possible. Rapid quenching or splat cooling technology
has been widely used for soft magnetic, the preparation of hard magnetic amorphous and nanocrystalline alloy, Many
studies have shown that the alloy composition and rapid quenching process parameters (such as the rod surface speed) has
important influence on performance of alloy. G.A usanio etc. Studied relationship between rapid quenching NAxpxFexAli
alloy performance and the composition and process parameters. Master alloy with 99.99% pure metal in Ar atmosphere
CLP solitary furnace smelting and single roll faster quenching in Ar atmosphere into thin belt.
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