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公开(公告)号：US20240328575A1
公开(公告)日：2024-10-03
申请号：US18622942
申请日：2024-03-31
申请人： Peter Gutmann
发明人： Peter Gutmann
摘要： The present invention provides a rail inserted into the longitudinal joint of a pre-cast concrete or other type of pre-fabricated deck that is used as formwork to support concrete during construction of a suspended concrete slab. The cast-in soffit connector rail has a perforated vertical element that extends below the soffit level of the deck. The rail and the perforations are used for the connection of suspended elements like ceilings, cable trays, mechanical services etc. The cast-in soffit connector rail has a cross section profile that allows it to simply hook or wedge between the deck elements. The rail is used to not only simply, easily and quickly fix elements that need to be hung from the soffit, but it will also help to reduce the amount of slurry that typically falls between the deck joints during the concrete pour.
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2.发明授权公开(公告)号：US11925966B2
公开(公告)日：2024-03-12
申请号：US17839883
申请日：2022-06-14
申请人： Savita Newar , Shyam Newar
发明人： Savita Newar , Shyam Newar
CPC分类号： B21B1/0855 , B21B45/004 , B21J9/025 , B21B2035/005 , B21B2201/16
摘要： A forge and method of forging is provided. The forge converts an asymmetric railroad rail to a symmetric railroad rail through a combination of vertical and horizontal forging operations. The rail is linearly translated to heating and forging stations on a roller table. The asymmetric to symmetric conversion can be completed without the need for reorienting the rail except along a single translational axis.
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3.发明申请公开(公告)号：US20220112571A1
公开(公告)日：2022-04-14
申请号：US17552058
申请日：2021-12-15
发明人： Kenji Okushiro , Hiroyuki Fukuda , Hideo Kijima , Yoshikazu Yoshida , Hiroshi Ishikawa , Sadanori Nakano
IPC分类号： C21D9/04 , B21B1/085 , C21D1/00 , B21B45/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14
摘要： A method of producing a steel material, wherein when a cooling apparatus having a plurality of cooling sections disposed side by side in a longitudinal direction of a steel material cools the steel material hot worked or cooled/reheated, the steel material is conveyed at a conveyance distance Lo (m) satisfying Equation (1), in one direction along with the longitudinal direction of the steel material, in the cooling apparatus, wherein Lo is defined as conveyance distance (m) of steel material, m is a natural number, and Lh is defined as length (m) of cooling sections in longitudinal direction of steel material: (m−0.20)×Lh≤Lo(m+0.20)×Lh (1).
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公开(公告)号：US10850315B2
公开(公告)日：2020-12-01
申请号：US16155102
申请日：2018-10-09
发明人： Zhenyu Han , Ming Zou , Hua Guo , Jun Yuan
IPC分类号： B21B1/085 , B21B1/22 , C21D1/667 , C21D9/04 , C22C38/02 , C22C38/04 , C22C38/26 , C22C38/28 , C22C38/24
摘要： Provided is a manufacturing method for high-toughness and plasticity hypereutectoid rail, including: a. hot rolling the steel billet into rail; b. blowing a cooling medium to the top surface of railhead, wherein, the two sides of railhead and the lower jaws on the two sides of railhead after the center of top surface of rail is air-cooled to 800-850° C., and cooling the rail until the center temperature of the top surface is 520-550° C.; c. stop blowing the cooling medium to the lower jaws on the two sides of railhead, continue blowing the cooling medium to the top surface of railhead and the two sides of railhead, and air cool the rail to room temperature after the surface temperature of railhead is cooled to 430-480° C. The resulting hypereutectoid rail has higher toughness and plasticity than existing products, which is suitable for heavy-haul railway, especially for small radius curve sections.
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公开(公告)号：US10563278B2
公开(公告)日：2020-02-18
申请号：US16180508
申请日：2018-11-05
IPC分类号： C21D9/04 , B21B1/085 , B21B45/02 , C21D1/18 , C22C38/00 , C21D1/62 , C21D1/667 , C22C38/20 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/40 , C22C38/18 , C22C38/04 , C22C38/02 , C21D1/56 , C21D6/00 , C22C38/50
摘要： Rail-manufacturing equipment that performs forced cooling on at least a head of a hot rail hot-rolled at or heated to the austenite region temperature or higher. The rail-manufacturing equipment includes a head-cooling header configured to jet a cooling medium toward the head of the rail, a head thermometer configured to measure surface temperature of the head of the rail, and a controller configured to adjust jet of the cooling medium from the head-cooling header. The controller includes a temperature-monitoring unit configured to monitor measurement results by the head thermometer during the forced cooling, and a cooling-rate controller.
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公开(公告)号：US20150217348A1
公开(公告)日：2015-08-06
申请号：US14686543
申请日：2015-04-14
申请人： W. Silver Inc.
IPC分类号： B21B1/085
CPC分类号： B21B1/0855 , Y10T29/49789
摘要： A method of recycling a one-piece rail having a base portion and a head portion spaced from each other by a substantially flat web portion. The steps include: heating the rail to a plastic state; feeding the heated rail through a first reduction pass to reduce a cross section of the rail without slitting the rail; feeding the bar through a second reduction pass in which the cross section of the bar is further modified; feeding the bar through a third reduction pass in which the cross section of the bar is further modified and then slitting the bar along the web portion into two bar pieces, one containing the former head portion and one containing the former base portion, as the bar leaves the third reduction pass; and rolling the two bar pieces through a series of reduction passes to produce a desired final cross section of the pieces.
摘要翻译： 一种回收具有基本部分和头部部分的单件轨道的方法，所述基部部分和头部部分通过基本平坦的腹板部分彼此隔开。 步骤包括：将轨道加热到塑料状态; 通过第一次通过进给加热的轨道以减少轨道的横截面而不对轨道进行切割; 通过进一步改变杆的横截面的第二减压道进给杆; 通过第三次还原通道将棒进给，其中杆的横截面被进一步改变，然后沿着腹板部分将杆沿着腹板部分分成两个棒件，一个包含前头部，一个包含前基座部分，作为杆 离开第三次通行证; 并且通过一系列的减少通道来滚动两个条件，以产生所需件的最终截面。
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7.发明授权Rail having high resistance to wear in its head and high resistance to rupture in its foot 失效轨道在其头部具有高耐磨性，并且具有高抗破裂力
公开(公告)号：US4575397A
公开(公告)日：1986-03-11
申请号：US656400
申请日：1984-10-01
申请人： Wilhelm Heller
发明人： Wilhelm Heller
CPC分类号： C21D9/04 , Y10S148/902
摘要： The invention relates to a rail having high resistance to wear in its head and high resistance to rupture in its foot. It is the characteristic feature of the invention that after rolling followed by heat treatment the rail has a fine pearlitic structure in the head and a martensitic annealed grain structure in the foot. The invention also includes preferred methods of heat treatment for the rail.
摘要翻译： 本发明涉及一种在头部具有高耐磨性和高抗破裂力的轨道。 本发明的特征在于，经过轧制后进行热处理，钢轨在头部具有细小的珠光体结构，在脚中具有马氏体退火晶粒结构。 本发明还包括用于轨道的优选热处理方法。
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公开(公告)号：US20240068063A1
公开(公告)日：2024-02-29
申请号：US17996603
申请日：2022-06-30
发明人： Jun YUAN , Yong DENG , Chongmu CHEN , Yuan WANG
IPC分类号： C21D9/04 , B21B1/085 , C21D1/18 , C21D6/00 , C21D8/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/18 , E01B5/02
CPC分类号： C21D9/04 , B21B1/085 , C21D1/18 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/005 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/18 , E01B5/02 , C21D2221/00
摘要： A moderate-strength steel rail is provided. The chemical composition of the moderate-strength steel rail in weight percentages includes carbon 0.70-0.90 wt %, silicon 0.08-0.65 wt %, manganese 0.69-1.31 wt %, chromium 0.10-0.25 wt %, phosphorus ≤0.020 wt %, sulfur ≤0.020 wt %, and iron 96.85-98.41 wt %. According to a production method for the moderate-strength steel rail of the present invention, the moderate-strength steel rail produced has a rail hardness of 350-370 HB, a wear amount of ≤0.40 g, a contact fatigue life of ≥50,000 times, and a 610 mm steel rail waist opening ≤3.0 mm/400 mm.
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9.发明公开公开(公告)号：US20230166309A1
公开(公告)日：2023-06-01
申请号：US17839883
申请日：2022-06-14
申请人： Savita Newar , Shyam Newar
发明人： Savita Newar , Shyam Newar
CPC分类号： B21B1/0855 , B21J9/025 , B21B45/004 , B21B2035/005
摘要： A forge and method of forging is provided. The forge converts an asymmetric railroad rail to a symmetric railroad rail through a combination of vertical and horizontal forging operations. The rail is linearly translated to heating and forging stations on a roller table. The asymmetric to symmetric conversion can be completed without the need for reorienting the rail except along a single translational axis.
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10.发明申请公开(公告)号：US20190106761A1
公开(公告)日：2019-04-11
申请号：US16154971
申请日：2018-10-09
发明人： Zhenyu HAN , Ming ZOU , Hua GUO , Jun YUAN
IPC分类号： C21D9/04 , B21B1/085 , B21B1/22 , C21D1/667 , C22C38/02 , C22C38/04 , C22C38/24 , C22C38/26 , C22C38/28 , E01B5/02
摘要： In view of the low comprehensive strength and toughness of pearlitic rail manufactured by existing techniques, the invention provides a manufacturing method for rail of railway with passenger and freight mixed traffic, including the following steps: a. hot roll steel billet into rail, with a final rolling temperature of 900-1000° C.; b. blow a cooling medium to the top surface of railhead, the two sides of railhead and the lower jaws on two sides of railhead when the center of top surface of rail is air-cooled to 800-850° C.; and then air-cool the rail to the room temperature after the center of top surface of rail is cooled to 520-550° C. By controlling the composition of steel and adopting a two-stage accelerated cooling, the invention is able to produce a rail with better performance which is suitable for railway with passenger and freight mixed traffic.
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