• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The primary blank 1, which is to be transformed into a finished rail by means of universal passes, edging passes and a finishing pass, is characterized by a symmetric ' UPSILON ' section the thickness of which always varies in the same way. It is designed to be shaped exclusively in open grooves. This primary blank 1 is roughed in a specific manner in a universal stand and undergoes a strong forging which improves the quality of the finished rail. A secondary blank is then formed which has a special shape allowing the production by universal rolling of a very accurate profile of the finished rail.
    公开号:SU1222188A3
    申请号:SU823513534
    申请日:1982-11-03
    公开日:1986-03-30
    发明作者:Фаесель Андре；Бернар Меннель Габриель；Мари Мишо Жак
    申请人:Сасилор (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to rolling production and can be used in the manufacture of rails.
    The aim of the invention is to reduce roll wear during rolling of rails and improve the quality of the profile by compacting the structure in the rail head and sole.
    In FIG. 1 shows a gauge for rolling a rail billet (hatched); figure 2 - the proposed billet; 3- sequence of forming the workpiece during the rolling of the rail; figure 4 - 13 diagram of the calibration of vadkov and reductions when rolling the proposed method; in fig. 14 is a schematic of the compression of the workpiece in a universal caliber and the forces acting on the charging current.
    Rail billet 1. can be obtained by prostatka in open two-roll calibers (Fig. 1) from a rectangular bloom or by continuous casting. The blank (Fig. 2) for the manufacture of rails has a T-shaped cross-section with a decreasing thickness in one direction along the axis of symmetry YY, formed by a rectangular element on the thickened side of the section, which passes into the trapezoidal element (part A), which in turn is conjugated with a rectangular element of lesser thickness (part B), and an additional trapezoidal element of smaller thickness joined with it by a large base (part C) to form a rail head. All the matings of the sections of the contour of the section of the workpiece are filled with radius roundings.
    Part-A roughly corresponds to the configuration of the rail foot.
    Such a configuration of the original rail blank simplifies its production, since its rolling from a rectangular bloom can be done in a single caliber, shown in Fig. 1. Wherein
    rolling in open gauge reduces wear of the latter, increases the service life of the rolls. The reduction in the number of gauges provides, in one or two sets of rolls, the cutting of gauges for rolling billets of the entire rail grade.
    As follows from figure 3, according to
    In the proposed method, a rectangular section blank 2 is initially deformed in a two-roll open gauge into a shaped blank 1 having the described configuration of slashes. Further, this workpiece after three passes in universal and one pass in two-roll caliber (FIGS. 4-7) takes the form of a secondary workpiece 3 (FIG. 3). This
    the blank has an elongated head shape with concave side surfaces 4 and rollers 5 in the lower part of the head. In the future, the secondary workpiece 3 is pierced into ready
    rail for six passes in alternating universal and twin roll gauges (Fig. 8 - 13). While the concave side surfaces 4 of the head of the secondary billet 3 (fig.Z) and rollers
    represent a set of metal, which allows to obtain the exact profile of the rail head during the subsequent rolling of the finished rail in the gauge system (Fig. B-13).
    The deformation of the rail billet by the proposed method mainly in universal gauges (figures 4-6) provides an application to the workpiece forces shown schematically in figure 14. In this case, the metal flows predominantly in the direction of the longitudinal axis of the profile, the metal flows from the neck into the head and the sole and precipitates in these elements in the direction to their cores. This leads to compaction of the metal structure in the head and neck, increasing their mechanical characteristics and profile quality.
    ftPut, 3
    .S
    Vu.S
    ut. 7
    (fJij &. 9
    fpuz, 8
    Vuz. ten
    Fi. n
    city / j
    FIG. 12
    Editor L. Beselovska Tehred G. Gerber
    1622/61
    Circulation 518 Subscription
    VNIIPI USSR State Committee
    according to inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Branch PPP Pateit, Uzhgorod, Projecto st., 4
    Korrek then. Zimokosov
    权利要求:
    Claims (3)
    [1]
    1. A workpiece for the manufacture of rails, obtained by continuous casting or compression, having a T-shaped cross section with decreasing thickness in one direction along the axis of symmetry, formed by a rectangular element on the thickened side of the section to form the sole of the rail, turning into a trapezoidal element, in turn, conjugated with a rectangular element of smaller thickness, and the conjugation of the sections of the contour section is made with radiuses, characterized in that, in order to reduce the wear of the rolls when the rolling of the rails, it is made with an additional trapezoidal element adjacent to the specified rectangular element of lesser thickness to form a rail head from it.
    [2]
    2. A method of rolling rails from a blank of a shaped T-shaped section, decreasing in the direction of the axis of symmetry of the thickness formed by alternating rectangular and trapezoidal sections, including its deformation in universal calibers and open twin roll calibers, characterized in that, in order to improve the quality of the profile by compaction of the structure in the head and sole of the rail, rough passages are carried out in several continuously following one after the other universal gauges with compression of the neck and pinch of part m metal into the head and sole of the workpiece, and then it is crimped in an open two-roll caliber, deforming all elements of the profile only in the direction perpendicular to its axis ..
    [3]
    3. The method of pop. 2, characterized in that the head of the rail billet is formed in a double-roll gauge with the formation of thickenings in the lower part of its side surfaces and giving these surfaces a concave shape.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ES517017A0|1984-01-16|
    SE447213B|1986-11-03|
    ZA827999B|1983-08-31|
    SE8206236D0|1982-11-03|
    CA1197713A|1985-12-10|
    US4518660A|1985-05-21|
    FR2515538A1|1983-05-06|
    DE3239655A1|1983-05-11|
    LU84440A1|1983-06-13|
    AU553782B2|1986-07-24|
    SE8206236L|1983-05-05|
    KR890002074B1|1989-06-16|
    JPS5884602A|1983-05-20|
    GB2110137B|1985-07-17|
    IT1156227B|1987-01-28|
    FR2515538B1|1985-05-17|
    JPH07102361B2|1995-11-08|
    IN158658B|1987-01-03|
    AU9001982A|1983-05-12|
    GB2110137A|1983-06-15|
    KR840002264A|1984-06-25|
    ES8401868A1|1984-01-16|
    IT8268284D0|1982-11-03|
    BR8206394A|1983-09-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2569624C2|2013-12-11|2015-11-27|Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования "Пензенский Государственный Университет Архитектуры И Строительства"|Method of rail production|
    RU2583495C2|2014-03-11|2016-05-10|Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный университет архитектуры и строительства"|Method of guaranteeing sufficient technical resource of crane girders|US499651A|1893-06-13|Rolling-mill |
    DE135101C|
    US657964A|1900-06-07|1900-09-18|Joseph S Seaman|Manufacture of rails.|
    US1306967A|1918-12-13|1919-06-17|Lackawanna Steel Co|Rail.|
    BE365576A|1928-11-22|
    LU37200A1|1958-05-31|
    FR1447939A|1964-04-15|1966-08-05|Wendel & Cie De|Rail rolling improvements|
    US3583193A|1967-12-16|1971-06-08|Nippon Steel Corp|Rolling method and apparatus for producing h-shaped steel products having flanges of different thicknesses and similarly shaped steel products|
    US3597954A|1968-01-16|1971-08-10|Nippon Steel Corp|Method and apparatus for rolling steel material and rails or similarly shaped products|
    US3657912A|1968-12-09|1972-04-25|Nippon Steel Corp|Universal method of rolling rails and a mill train for the same|
    JPS5755481B2|1976-03-31|1982-11-24|
    JPS5931404B2|1979-08-03|1984-08-02|Nippon Steel Corp|EP0272520A3|1986-12-24|1988-11-09|Sms Schloemann-Siemag Aktiengesellschaft|Method and reversing roll train for rolling, in particular sheet piles|
    DE19628369A1|1996-07-13|1998-01-15|Schloemann Siemag Ag|Process for rolling finished profiles from a preliminary profile|
    IT1315029B1|2000-08-28|2003-01-27|Danieli Off Mecc|METHOD AND LINE FOR ROLLING RAILS OR OTHER SECTIONS|
    ITMI20021594A1|2002-07-19|2004-01-19|Danieli Off Mecc|METHOD AND SYSTEM FOR HOT ROLLING OF RAILS|
    CN103639654A|2013-11-26|2014-03-19|大连创达技术交易市场有限公司|T-type profile integrally forming machining method|
    CN105983576B|2015-02-13|2018-08-03|鞍钢股份有限公司|A kind of rail complete universal finish rolling last groove and rolling mill practice|
    CN105414172A|2015-12-16|2016-03-23|武汉科技大学|Method for eliminating salient points at tail end of continuous rolled steel rail|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8120689A|FR2515538B1|1981-11-04|1981-11-04|
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