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HIGH-CARBON STEEL WIRE HAVING EXCELLENT DRAWABILITY AND FATIGUE PROPERTIES AFTER DRAWING
HIGH-CARBON STEEL WIRE HAVING EXCELLENT DRAWABILITY AND FATIGUE PROPERTIES AFTER DRAWING
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机译:拔后高碳钢线具有出色的可延展性和疲劳性能
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摘要
High performance high carbon wire with refined inclusions after wire rolling, extremely low wire breakage rates at the time of drawing even in tough applications, and excellent in fatigue characteristics after wire drawing, characterized by having a predetermined composition of ingredients and in that the number ratio of inclusions satisfying (%SiO 2 )=40 to 95%, (%can)=0.5 to 30%, (%Al 2 O 3 )=0.5 to 30%, (%MgO)=0.5 to 20%, and (%MnO)=0.5 to 10% and further satisfying (%Na)=0.2 to 7% and (%F)=0.17 to 8% (below, referred to as "inclusions covered due to composition") in the oxide-based nonmetallic inclusions of a short axis of 0.5 µm or more, a long axis of 1.0 µm or more, and a circle equivalent diameter (area converted to diameter) of 1 µm or more which are seen in the L direction cross-section of the wire (below, referred to as "inclusions covered due to size"), that is, the number of inclusions covered due to composition/number of inclusions covered due to size×100, is 80% or more.
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