Patent ID: 8099991

Claim:
A method for molding a bistable magnetic alloy wire, comprising: (a) processing an alloy wire by heat treatment; and (b) processing said alloy wire by cold treatment of mechanical twisting; wherein said mechanical twisting is repeated continuously; during said mechanical twisting, any one point on said alloy wire alternately experiences forward twisting and reverse twisting; any one point on said alloy wire experiences the same amount of alternate reverse twisting and forward twisting as any other point of said alloy wire; said alloy wire moves uniformly forward at a linear speed of between 0.1 m/min and 5 m/min; said alloy wire is being twisted at an angular speed of between 500 loops/min and 3000 loops/min; and said alloy wire is being forward twisted while passing a linear distance of between 1 cm and 10 cm and is being reverse twisted while passing a linear distance of between 1 cm and 10 cm.