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Steel material with excellent properties of fatigue of support with fatigue rolling contact and part of the support

机译:具有出色的疲劳疲劳特性的钢质材料,具有疲劳滚动接触和部分支撑

摘要

Summary "steel material with excellent properties of fatigue of support with contact fatigue of lamination and the support steel material support in accordance with the present invention has: a form by chemical correctly adjusted; a chemical composition average of inclusu00f5 Es of oxide which comprise 10 to 45% of Cao, 20 to 45% of Al2O3, 30 to 50% of SiO2, up to 15% (ex clusivo 0) of MnO.And 3 to 10% of MgO, with the balance being unavoidable impurities; a diameter of the main axis of maximum inclusions of oxide in a longitudinal section of the steel material of 20 u00b5 m or less; and a structure of cementita spheroidal.
机译:发明内容根据本发明的具有优异的支撑体疲劳性能与层压体的接触疲劳性的钢材料和支撑体钢材料支撑体具有:通过化学形式正确调整的形式;化学组成平均值包括氧化物,其中包含10%至45%的Cao,20%至45%的Al2O3、30%至50%的SiO2,最多15%的MnO(不包括0),3%至10%的MgO,其余为不可避免的杂质;在钢材的纵向截面中,氧化物的最大夹杂物的主轴直径为20μm或更小;并且为胶结球状结构。

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