A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a vehicle ferrite magnetic core material comprising a main material and an additive, wherein the main material comprises the following components according to mole ratios: 64-68.1mol of Fe2O3, 14.6-20mol of manganese oxide, 14.3-16.5mol of zinc oxide, 0.2-0.5mol of graphite, 0.2-0.3mol of tungsten carbide and 0.01-0.02mol of tantalum coated carbonyl iron powder; and the additive comprises the following components according to the weight ratio in the ferrite magnetic core material: 500-600ppm of copper oxide, 400-500ppm of nickel oxide and 20-50ppm of lithium nitride. The tantalum coated carbonyl iron powder added into the ferrite magnetic core material provided by the invention has high magnetic fluxes under a high frequency and an ultrahigh frequency, so that the comprehensive performance of a finished product is further improved. The magnetic core material disclosed by the invention has the characteristics of high magnetic energy product, stable magnetism and strong mechanical properties.
The invention discloses a vehicle ferrite magnetic core material comprising a main material and an additive, wherein the main material comprises the following components according to mole ratios: 64-68.1mol of Fe2O3, 14.6-20mol of manganese oxide, 14.3-16.5mol of zinc oxide, 0.2-0.5mol of graphite, 0.2-0.3mol of tungsten carbide and 0.01-0.02mol of tantalum coated carbonyl iron powder; and the additive comprises the following components according to the weight ratio in the ferrite magnetic core material: 500-600ppm of copper oxide, 400-500ppm of nickel oxide and 20-50ppm of lithium nitride. The tantalum coated carbonyl iron powder added into the ferrite magnetic core material provided by the invention has high magnetic fluxes under a high frequency and an ultrahigh frequency, so that the comprehensive performance of a finished product is further improved. The magnetic core material disclosed by the invention has the characteristics of high magnetic energy product, stable magnetism and strong mechanical properties.
Vehicle ferrite magnetic core material
ZHU YONGNING (author)
2015-04-29
Patent
Electronic Resource
English