| 摘要 |
PURPOSE:To improve the space factor of a laminate core and to prevent the lowering of the magnetic flux density and the magnetic permeability to make the best use of characteristics of materials, by forming the laminate core so that a front gap coincides with a part near the thickest part of a core material obtained from a thin plate having the shape of almost a convex surface. CONSTITUTION:A sendust alloy of Fe-Al-Si where the composition ratio of Fe:Al:Si is (92-81):(3-8):(5-11)(wt%) is put in a heating vessel 1 as a fused base material 2 and is heated by a heater H and is fused. An inert gas such as gaseous He, Ar, or the like is charged to raise the internal pressure of the heating vessel 1, and the fused base material 2 is jetted from a nozzle 1A to rolls 3 and 3 to obtain a thin plate 4. In this case, the heating temperature of the ''Sendust'' alloy is 1,250-1,600 deg.C, and the rotation number of rolls 3 and 3 is 400-2,000r.p.m. Twelve core materials 6 obtained from the thin plate 4, whose section has the an almost convex shape, by the longitudinal parallel taking- out method are laminated with an adhesive 9 to form a laminated core 8. |
