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发明公开
CN102031451A 含钒钛的碳素钢及其制造方法 失效 - 权利终止

含钒钛的碳素钢及其制造方法
摘要：
本发明提供了一种含钒钛的碳素钢及其制造方法，该制造方法包括：初炼钢水；在钢水的C含量为0.05％～0.10％，P含量不大于0.015％，S含量不大于0.020％时，向钢包出钢；在出钢过程中，调整钢水的Si含量为0.17％～0.37％，Mn含量为0.35％～0.65％，并调整钢水的氧含量在0.0020％以下；控制钢水的Als含量为0.015％～0.025％，Als表示酸溶铝；在钢包精炼炉中调整钢水的氧含量在0.0010％以下；调整钢水的Ti含量为0.005％～0.010％，V含量为0.02％～0.04％；调整钢水的C含量为0.17％～0.23％，从而得到碳素钢，该碳素钢包含0.17％～0.23％的C、0.17％～0.37％的Si、0.35％～0.65％的Mn、0.005％～0.010％的Ti、0.005％～0.010％的Als和0.02％～0.04％的V，余量为Fe和不可避免的杂质，碳素钢中各元素的含量均为重量百分比含量。
摘要（英）：

The invention provides vanadium-titanium containing carbon steel and a manufacturing method thereof. The manufacturing method comprises the following steps of: primarily smelting to obtain molten steel; discharging steel to a steel ladle when the content of C in the molten steel is 0.05-0.10 percent, the content of P is not more than 0.015 percent, and the content of S is not more than 0.020 percent; in the process of discharging the steel, regulating the content of Si of the molten steel to be 0.17-0.37 percent, the content of Mn to be 0.35-0.65 percent and the content of oxygen of the molten steel to be below 0.0020 weight percent; controlling the content of Als of the molten steel to be 0.015-0.025 percent, wherein Als represents acid soluble aluminum; regulating the content of oxygen of the molten steel in a steel ladle refining furnace to be below 0.0010 percent; regulating the content of Ti of the molten steel to be 0.005-0.010 percent and the content of V to be 0.02-0.04 percent; and regulating the content of C of the molten steel to be 0.17-0.23 percent so as to obtain the carbon steel, wherein the carbon steel contains the following components in percentage by weight: 0.17-0.23 percent of C, 0.17-0.37 percent of Si, 0.35-0.65 percent of Mn, 0.005-0.010 percent of Ti, 0.005-0.010 percent of Als, 0.02-0.04 percent of V and the balance of Fe and unavoidable impurities.

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