Low-loss thin amorphous alloy strip and the manufacturing device and method thereof

A method of manufacturing a thin amorphous alloy strip with notches, characterized in that the method comprises forming notches on a smooth amorphous alloy strip using a cutting roller in a notching operation;

• wherein the cutting roller has a cylindrical body;
• the body is provided on the surface with at least one transversely extending cutting edge;
• and during the notching operation, the cutting roller is pressed against the amorphous alloy strip and rotates around a central axis while moving in a travel direction perpendicular to a travel direction of the strip,
• wherein during the notching operation, a pressure at the cutting edge is in the range of 0.1-1.5 MPa/cm2.

A manufacturing device for forming notches on an amorphous alloy strip, the device comprising:

• a discharging unit, which unwinds a strip roll;
• a tension adjusting mechanism, which adjusts a tension of the strip;
• a process deviation rectifying mechanism, which ensures that the strip does not deviate in operation;
• and
• a notching mechanism, which carries out a notching operation on the strip;
• wherein the notching mechanism comprises a cutting roller traveling mechanism, a cutting roller and a cutting board, the cutting roller has a cylindrical body and at least one cutting edge protruding from a surface of the body and extending circumferentially or spirally on the surface of the body.