METHOD FOR PRODUCING ALLOY RIBBON

• Main Authors: KOMORI, Kensuke, MANABE, Hideki, HIRAMATSU, Shinichi, TAKANEZAWA, Yu, TAKAO, Tomohiro
• Format: Patent
• Language: English
• Published: 16.07.2020
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

After an first heat treatment step, an ambient temperature of a stack (10) is held so that the stack (10) is kept in a temperature range that allows the stack (10) to be crystallized by heating the end of the stack (10) to a second temperature range in the second heat treatment step; and a following expression (1) is satisfied, where Q1 represents an amount of heat required to heat the stack (10) to the first temperature range in the first heat treatment step, Q2 represents an amount of heat that is applied to the stack (10) when heating the end of the stack (10) to the second temperature range in the second heat treatment step, Q3 represents an amount of heat that is released during crystallization of the stack (10), and Q4 represents an amount of heat required to heat the entire stack (10) to the crystallization start temperatureQ1+Q2+Q3≥Q4