ENERGY CRITICAL MAGNETIC MATERIAL MANUFACTURING PROCESSES

摘要

Soft and Permanent magnetic materials are essential components of many energy-critical applications. Among the uses are electric motors and generators, hybrid vehicle traction drives, transformers, sensors, and microwave beam guidance. Newer materials often require sophisticated and recently invented manufacturing processes to establish and maintain appropriate microstructure, to protect from contaminating reactants and to provide optimal product properties - both magnetic and physical. Traditional manufacturing management often overlooked lower production yield as of lesser importance. However, process yield loss incurs an energy use penalty and consumes larger quantities of increasingly sensitive raw materials. A survey of historic and current magnetic product manufacturing techniques will be presented along with trends in newer technologies.