Semi-hard magnetic alloy

Abstract

Abstract PURPOSE:To provide the titled alloy having high coercive force and excellent sealing strength with soft glass, constituted by adding a specific compositional amount of Si, Al, Ti and N to an alloy having a specific composition consisting of Co, V, C and Fe. CONSTITUTION:A semi-hard magnetic alloy is constituted by containing, on a wt. base, 0.2-1% Si+Al and 0.4-2% Ti and/or Nb to an alloy consisting 47- 52% Co, 1-4% V, 0.05% or less C and the remainder of substantially Fe and has coercive force of 20-50 Oe and excellent sealing strength with soft glass. The composition of each above mentioned component is limited from such a reason that, if Co and V is out of the above mentioned range, saturation magnetic flux density is lowered and desired coercive force is not obtained and, if Ti and Nb are reduced to the lower limit or less, foaming is generated in glass sealing and, if exceed the upper limit, saturation magnetic flux density is lowered and, if Si and Al is within the above mentioned range, sealing strength is enhanced but, if exceed the upper limit, magnetic flux density is lowered and, if C exceeds the upper limit, foaming is generated during glass sealing to generate the lowering of sealing strength.

Inventors

• 👤 Tsutomu Inui
• 👤 乾　勉
• 👤 Daiji Sakamoto
• 👤 坂本　大司

Bibliographic Details