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1. 发明申请

US20180112284A1 Method of Making High Strength Steel Crane Rail 审中-公开
公开(公告)号：US20180112284A1
公开(公告)日：2018-04-26
申请号：US15334129
申请日：2016-10-25
申请人： Bruce L. Bramfitt , Frederick B. Fletcher , Jason T. McCullough , Michael A. Muscarella , John S. Nelson
发明人： Bruce L. Bramfitt , Frederick B. Fletcher , Jason T. McCullough , Michael A. Muscarella , John S. Nelson
IPC分类号： C21D9/04 , C22C38/28 , C22C38/24 , C22C38/04 , C22C38/02 , C22C38/00 , C22C33/04 , C21D8/00 , C21D1/667 , C21D1/60 , C21D1/18
CPC分类号： C21D9/04 , C21D1/18 , C21D1/60 , C21D1/667 , C21D8/005 , C21D2211/009 , C22C33/04 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/24 , C22C38/28
摘要： A method of making a high strength head-hardened crane rail and the crane rail produced by the method. The method comprises the steps of providing a steel rail having a composition comprising, in weight percent: C 0.79-1.00%; Mn 0.40-1.00; Si 0.30-1.00; Cr 0.20-1.00; V 0.05-0.35; Ti 0.01-0.035; N 0.002 to 0.0150; and the remainder being predominantly iron. The steel rail is cooled from a temperature between about 700 and 800° C. at a cooling rate having an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 800° C.), (40 s, 700° C.), and (140 s, 600° C.) and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 700° C.), (40 s, 600° C.), and (140 s, 500° C.).

2. 发明申请

US20140130943A1 Method of Making High Strength Steel Crane Rail 有权
标题翻译：制造高强度钢制起重机轨的方法
公开(公告)号：US20140130943A1
公开(公告)日：2014-05-15
申请号：US14081581
申请日：2013-11-15
申请人： Bruce L. Bramfitt , Frederick B. Fletcher , Jason T McCullough , Michael A. Muscarella , John S. Nelson
发明人： Bruce L. Bramfitt , Frederick B. Fletcher , Jason T McCullough , Michael A. Muscarella , John S. Nelson
IPC分类号： C21D9/04
CPC分类号： C21D9/04 , C22C38/04 , C22C38/14
摘要： A method of making a high strength head-hardened crane rail and the crane rail produced by the method. The method comprises the steps of providing a steel rail having a composition comprising, in weight percent: C, 0.79-1.00%; Mn, 0.40-1.00; Si, 0.30-1.00; Cr, 0.20-1.00; V, 0.05-0.35; Ti, 0.01-0.035; N, 0.002 to 0.0150; and the remainder being predominantly iron. The steel rail is cooled from a temperature between about 700 and 800° C. at a cooling rate having an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 800° C.), (40 s, 700° C.), and (140 s, 600° C.) and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 700° C.), (40 s, 600° C.), and (140 s, 500° C.).
摘要翻译：一种制造高强度头硬化起重机轨道的方法和通过该方法制造的起重机轨道。该方法包括以下步骤：提供具有重量百分比：C，0.79-1.00％的组成的钢轨; Mn，0.40-1.00; Si，0.30-1.00; Cr，0.20-1.00; V，0.05-0.35; Ti，0.01-0.035; N，0.002〜0.0150; 其余的主要是铁。钢轨由约700和800℃之间的温度冷却，其冷却速率具有由连接xy坐标（0s，800℃），（40s， 700℃），（140s，600℃），以及由连接xy坐标（0s，700℃），（40s，600℃）的下部线限定的较低冷却速度边界图。），（140s，500℃）。

3. 发明授权

US5387392A High strength, high toughness steel grade and gas cylinder thereof 失效
标题翻译：高强度，高韧性钢级及其气瓶
公开(公告)号：US5387392A
公开(公告)日：1995-02-07
申请号：US111546
申请日：1993-08-25
申请人： Bruce L. Bramfitt , Leonard C. Luscomb
发明人： Bruce L. Bramfitt , Leonard C. Luscomb
IPC分类号： C22C38/22 , C22C38/12 , C22C38/04
CPC分类号： C22C38/22
摘要： A high strength, high toughness steel comprising from about 0.32 to about 0.36 percent by weight carbon, from about 0.40 to about 0.60 percent by weight manganese, from about 0.15 to about 0.35 percent by weight silicon, from about 0.80 to about 1.10 percent by weight chromium, from about 0.55 to about 0.70 percent by weight molybdenum, from about 0.01 to about 0.05 percent by weight aluminum, from about 0.002 to about 0.004 calcium, no more than about 0.015 percent by weight phosphorus, no more than about 0.008 percent by weight sulfur, with the balance being iron.
摘要翻译：包括约0.32至约0.36重量％的碳，约0.40至约0.60重量％的锰，约0.15至约0.35重量％的硅，约0.80至约1.10重量％的高强度高韧性钢铬，约0.55至约0.70重量％的钼，约0.01至约0.05重量％的铝，约0.002至约0.004的钙，不超过约0.015重量％的磷，不超过约0.008重量％硫，余量为铁。

4. 发明授权

US08721807B2 Hypereutectoid, head-hardened steel rail 有权
标题翻译：过共晶，头硬化钢轨
公开(公告)号：US08721807B2
公开(公告)日：2014-05-13
申请号：US13584145
申请日：2012-08-13
申请人： Bruce L. Bramfitt , Fred B. Fletcher , John A. Davis, Jr.
发明人： Bruce L. Bramfitt , Fred B. Fletcher , John A. Davis, Jr.
IPC分类号： C22C38/02 , C22C38/04 , C22C38/14 , C22C38/12
CPC分类号： C21D9/04 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A method of making a hypereutectoid, head-hardened steel rail is provided that includes a step of head hardening a steel rail having a composition containing 0.86-1.00 wt % carbon, 0.40-0.75 wt % manganese, 0.40-1.00 wt % silicon, 0.05-0.15 wt % vanadium, 0.015-0.030 wt % titanium, and sufficient nitrogen to react with the titanium to form titanium nitride. Head hardening is conducted at a cooling rate that, if plotted on a graph with xy-coordinates with the x-axis representing cooling time in seconds, and the y-axis representing temperature in Celsius of the surface of the head of the steel rail, is maintained in a region between an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 775° C.), (20 s, 670° C.), and (110 s, 550° C.) and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 750° C.), (20 s, 610° C.), and (110 s, 500° C.).
摘要翻译：提供了一种制造过共析的头硬化钢轨的方法，其包括头硬化钢轨的步骤，该钢轨具有含有0.86-1.00重量％碳，0.40-0.75重量％锰，0.40-1.00重量％硅，0.05 -0.15重量％的钒，0.015-0.030重量％的钛和足够的氮与钛反应形成氮化钛。头部硬化以冷却速度进行，如果绘制在xy坐标，x轴表示冷却时间（以秒为单位），y轴表示钢轨头部表面温度（摄氏度）的曲线图上，保持在由连接xy坐标（0s，775℃），（20s，670℃）和（110s，550℃）的上部线限定的上部冷却速率边界图之间的区域中。）和由连接xy坐标（0s，750℃），（20s，610℃）和（110s，500℃）的下一行限定的较低冷却速率边界图。

5. 发明授权

US08241442B2 Method of making a hypereutectoid, head-hardened steel rail 有权
标题翻译：制造过共析，硬化钢轨的方法
公开(公告)号：US08241442B2
公开(公告)日：2012-08-14
申请号：US12794191
申请日：2010-06-04
申请人： Bruce L. Bramfitt , Fred B. Fletcher , John A. Davis, Jr.
发明人： Bruce L. Bramfitt , Fred B. Fletcher , John A. Davis, Jr.
IPC分类号： C21D9/04
CPC分类号： C21D9/04 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A method of making a hypereutectoid, head-hardened steel rail is provided that includes a step of head hardening a steel rail having a composition containing 0.86-1.00 wt % carbon, 0.40-0.75 wt % manganese, 0.40-1.00 wt % silicon, 0.05-0.15 wt % vanadium, 0.015-0.030 wt % titanium, and sufficient nitrogen to react with the titanium to form titanium nitride. Head hardening is conducted at a cooling rate that, if plotted on a graph with xy-coordinates with the x-axis representing cooling time in seconds, and the y-axis representing temperature in Celsius of the surface of the head of the steel rail, is maintained in a region between an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 775° C.), (20 s, 670° C.), and (110 s, 550° C.) and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 750° C.), (20 s, 610° C.), and (110 s, 500° C.).
摘要翻译：提供了一种制造过共析的头硬化钢轨的方法，其包括头硬化钢轨的步骤，该钢轨具有含有0.86-1.00重量％碳，0.40-0.75重量％锰，0.40-1.00重量％硅，0.05 -0.15重量％的钒，0.015-0.030重量％的钛和足够的氮与钛反应形成氮化钛。头部硬化以冷却速度进行，如果绘制在xy坐标，x轴表示冷却时间（以秒为单位），y轴表示钢轨头部表面温度（摄氏度）的曲线图上，保持在由连接xy坐标（0s，775℃），（20s，670℃）和（110s，550℃）的上部线限定的上部冷却速率边界图之间的区域中。）和由连接xy坐标（0s，750℃），（20s，610℃）和（110s，500℃）的下一行限定的较低冷却速率边界图。

6. 发明授权

US5017335A Microalloyed steel and process for preparing a railroad joint bar 失效
标题翻译：微合金钢和制备铁路接头棒的工艺
公开(公告)号：US5017335A
公开(公告)日：1991-05-21
申请号：US374264
申请日：1989-06-29
申请人： Bruce L. Bramfitt , Steven S. Hansen
发明人： Bruce L. Bramfitt , Steven S. Hansen
IPC分类号： C21D7/13 , C22C38/12
CPC分类号： C22C38/12 , C21D7/13
摘要： A microalloyed, fully killed steel has a composition, in weight percent, of from about 0.20 to about 0.45 percent carbon, from about 0.90 to about 1.70 percent manganese, from about 0.10 to about 0.35 percent silicon, from about 0.01 to about 0.04 percent aluminum, from about 0.05 to about 0.20 percent vanadium, from about 0.008 to about 0.024 percent nitrogen, balance iron. The steel is particularly useful when hot rolled to a railway joint bar section, and air cooled. The resulting joint bar meets AREA specifications in the as-rolled condition, without the need for a reheat and oil quench heat treatment after rolling.
摘要翻译：微合金完全处理的钢具有重量百分比为约0.20至约0.45％的碳，约0.90至约1.70％的锰，约0.10至约0.35％的硅，约0.01至约0.04％的铝的组成，约0.05至约0.20％的钒，约0.008至约0.024％的氮，余量为铁。当热轧到铁路接头棒部分时，钢是特别有用的，并且是空气冷却的。所得的接头棒在轧制状态下符合AREA规格，不需要在轧制后进行再热和油淬火热处理。

7. 发明授权

US4415376A Formable high strength low alloy steel sheet 失效
标题翻译：成型高强度低合金钢板
公开(公告)号：US4415376A
公开(公告)日：1983-11-15
申请号：US349097
申请日：1982-02-16
申请人： Bruce L. Bramfitt , Steven S. Hansen , Donald L. Harper , Roger R. Pradhan
发明人： Bruce L. Bramfitt , Steven S. Hansen , Donald L. Harper , Roger R. Pradhan
IPC分类号： C21D8/02 , C22C38/00 , C22C38/12
CPC分类号： C21D8/0226 , C22C38/001 , C22C38/12 , C21D2211/004 , C21D8/021
摘要： This invention is directed to a hot-rolled steel sheet having an essentially refined ferritic grain size, a balanced chemical composition comprising, by weight, 0.06 to 0.09% carbon, 1.0 to 1.6% manganese, 0.5% maximum silicon, 0.03 to 0.05% columbium, 0.06 to 0.12% vanadium, 0.010 to 0.025% nitrogen, 0.004% maximum sulfur, 0.02% maximum phosphorus, 0.02 to 0.08% aluminum, balance essentially iron, and characterized by 80 ksi minimum yield strength, improved transverse bendability, and improved sheared edge stretchability.
摘要翻译：本发明涉及一种具有基本上精炼的铁素体晶粒尺寸的热轧钢板，平衡化学组合物包含重量百分比为0.06至0.09％的碳，1.0至1.6％的锰，0.5％的最大硅，0.03至0.05％的铌，0.06至0.12％的钒，0.010至0.025％的氮，0.004％的最大硫，0.02％的最大磷，0.02至0.08％的铝，余量基本上为铁，特征为80ksi的最小屈服强度，改进的横向弯曲性和改进的剪切边伸缩性。

8. 发明授权

US4398970A Titanium and vanadium dual-phase steel and method of manufacture 失效
标题翻译：钛和钒双相钢及其制造方法
公开(公告)号：US4398970A
公开(公告)日：1983-08-16
申请号：US308686
申请日：1981-10-05
申请人： Arnold R. Marder , Bruce L. Bramfitt
发明人： Arnold R. Marder , Bruce L. Bramfitt
IPC分类号： C21D1/18 , C22C38/12 , C22C38/14 , C21D8/00
CPC分类号： C22C38/14 , C21D1/185 , C22C38/12
摘要： This invention is directed to a method and to the resulting product, wherein said product is a low-carbon dual phase steel having a combination of high strength, good ductility and a YS/TS ratio .ltoreq.0.6. The method includes the steps of (1) preparing an Al-killed steel consisting essentially of 0.05 to 0.15 wt. % C, up to 2.0 wt. % Mn, up to 1.0 wt. % Si, 0.03 to 0.15 wt. % V and a sufficient amount of titanium to "getter" the excess sulfur and nitrogen, with the balance essentially being iron, where the titanium addition should be at least equal to the atomic percent of the sulfur plus nitrogen, but no more than about 1.6 times, (2) intercritically annealing such steel within the .alpha.+.gamma. temperature range, and (3) cooling to room temperature.
摘要翻译：本发明涉及一种方法和所得产品，其中所述产品是具有高强度，良好延展性和YS / TS比

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