Amorphous cut core

Abstract

Abstract PURPOSE:To reduce the iron loss and the deterioration of permeability of the titled core by a method wherein the thickness of a thin band on the cut end face of cut material of the wound-around material, whereon an amorpeous magnetic alloy thin band is wound, is formed almost equal to that of the thin band. CONSTITUTION:After the thin band 2 of an amorphous magnetic alloy has been wound around a bobbin, said thin band 2 is fixed by peforming a pressure-welding at the point located in the vicinity of a cut part, and the cut material of C- shape, U-shape, I-shape and the like are formed by cutting the above-mentioned material. Then, a grinding work is performed on the cut end face of the cut material 1 in the grinding process to be performed after cutting in such a manner that the cut end face will be brought almost in parallel with the lateral direction. Through these procedures, the eddy current loss due to the burrs or saggings of the thin belt 2 on the cut end face is markedly reduced, and the iron loss is also reduced, thereby enabling to improve the permeability of the title core.

Inventors

• 👤 Masao Shigeta
• 👤 重田　政雄
• 👤 Masatatsu Sugaya
• 👤 菅屋　正達
• 👤 Tsutomu Cho
• 👤 勤 長

Bibliographic Details