Improvements in or relating to processes for the amelioration of the magnetic properties of metals and alloys, the atoms of which are arranged in a cubic lattice

摘要

504,974. Heat - treating metals and alloys. SIEMENS & HALSKE AKT.-GES. May 4, 1938, No. 13356. Convention date, May 4, 1937. [Class 72] [Also in Group XXII] Metals or alloys, the atoms of which are arranged in a cubic face-centred lattice, are rendered magnetically anisotropic by rolling several times alternately in two directions in the same plane perpendicular to each other. The material, which is preferably an ironnickel alloy having 30 to 60 per cent of nickel, is heated after rolling to a temperature at which recrystallization but no destruction of the texture occurs, i.e. 600 to 800‹ C.