Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR PRODUCING MnZn-BASED FERRITE, AND MnZn-BASED FERRITE
A method for producing MnZn ferrite comprising Fe, Mn and Zn as main components, and Ca, Si and Co, and at least one selected from the group consisting of Ta, Nb and Zr as sub-components, comprising a step of molding a raw material powder for the MnZn ferrite to obtain a green body, and a step of sintering the green body; the sintering step comprising a temperature-elevating step, a high-temperature-keeping step, and a cooling step; the cooling step including a slow cooling step of cooling in a temperature range of 1100°C to 1250°C at a cooling speed of 0°C/hour to 20°C/hour for 1 hours to 20 hours, and a cooling speed before and after the slow cooling step being higher than 20°C/hour; the MnZn ferrite having a volume resistivity of 8.5 ©·m or more at room temperature, an average crystal grain size of 7 µm to 15 µm, and core loss of 420 kW/m 3 or less between 23°C and 140°C at a frequency of 100 kHz and an exciting magnetic flux density of 200 mT.
METHOD FOR PRODUCING MnZn-BASED FERRITE, AND MnZn-BASED FERRITE
A method for producing MnZn ferrite comprising Fe, Mn and Zn as main components, and Ca, Si and Co, and at least one selected from the group consisting of Ta, Nb and Zr as sub-components, comprising a step of molding a raw material powder for the MnZn ferrite to obtain a green body, and a step of sintering the green body; the sintering step comprising a temperature-elevating step, a high-temperature-keeping step, and a cooling step; the cooling step including a slow cooling step of cooling in a temperature range of 1100°C to 1250°C at a cooling speed of 0°C/hour to 20°C/hour for 1 hours to 20 hours, and a cooling speed before and after the slow cooling step being higher than 20°C/hour; the MnZn ferrite having a volume resistivity of 8.5 ©·m or more at room temperature, an average crystal grain size of 7 µm to 15 µm, and core loss of 420 kW/m 3 or less between 23°C and 140°C at a frequency of 100 kHz and an exciting magnetic flux density of 200 mT.
METHOD FOR PRODUCING MnZn-BASED FERRITE, AND MnZn-BASED FERRITE
VERFAHREN ZUR HERSTELLUNG VON MNZN-BASIERTEM FERRIT UND MNZN-BASIERTES FERRIT
PROCÉDÉ DE PRODUCTION DE FERRITE À BASE DE MnZn, ET FERRITE À BASE DE MnZn
MIYOSHI YASUHARU (Autor:in) / KOYUHARA NORIKAZU (Autor:in) / TADA TOMOYUKI (Autor:in)
14.08.2019
Patent
Elektronische Ressource
Englisch
MNZN-BASED FERRITE, AND METHOD FOR PRODUCING MNZN-BASED FERRITE
| Europäisches Patentamt | 2025
METHOD FOR PRODUCING MnZn-BASED FERRITE, AND MnZn-BASED FERRITE
| Europäisches Patentamt | 2017
METHOD FOR PRODUCING MNZN-BASED FERRITE, AND MNZN-BASED FERRITE
| Europäisches Patentamt | 2016
MnZn-based ferrite sintered body and method for producing MnZn-based ferrite
| Europäisches Patentamt | 2023