鉄基アモルフアス薄帯関連の規格化動向

摘要

The establishment of international standards for Fe-based amorphous strips and a method of measuring the magnetic properties of these strip is required as the number of manufacturers providing these materials increases. In practically terms it is necessary to measure straight strip form of Febased amorphous strip in order to minimize measurement errors. We designed and built the measurement system for Febased amorphous strips showing 1/10 the iron loss and thickness, and relatively large magnetostriction compared to grain-oriented silicon steel. International round robin test demonstrated the reproducibility that is the relative standard deviation of iron loss is within 3%.