• 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:
    A method capable of continuously manufacturing a metallic bent pipe having straight pipe portions at both ends of a bent pipe portion which have been subjected to the same heat treatment as that for the bent pipe portion. The method comprises the steps of: inserting the front end portion of a metallic pipe to be bent into a heating device, and advancing the pipe, with the travel of the heating device suspended, thereby to heat-treat the pipe; retracting the heating device and advancing the pipe to heat-treat the same; suspending the advance of the pipe while retracting the heating device thereby to heat-treat the pipe, and clamping the pipe by a bending operation part; suspending the retraction of the heating device and advancing the pipe as well as applying a bending moment to the pipe thereby to bend the same; suspending the advance of the pipe and heat-treating the same while retracting the heating device, and releasing the pipe from the bending operation part; retracting the heating device and advancing the pipe to heat-treat the same; and suspending the retraction of the heating device and moving the pipe to heat-treat the same.
    公开号:SU1360576A3
    申请号:SU833640893
    申请日:1983-09-02
    公开日:1987-12-15
    发明作者:Ватанабе Ясуо
    申请人:Дай-Ити Хай Фриквенси Ко (Фирма)；
    IPC主号:
    专利说明:

    13
    The invention relates to the processing of metals by pressure, in particular to the technology of hot flexible pipes.
    The aim of the invention is to reduce costs and improve the quality of pipes by aligning the mechanical properties in a curved and straight section like.
    Fig. I 8 shows the sequence of deformation and heat treatment of the pipe; Fig. 9 shows the distribution of the speeds of the transfer of the pipe and the heater, as well as their relative speeds.
    The method is carried out as follows.
    The annular heater 1 with the center of the heating zone 2 is set to the right plane 5 of the bending lever 3 passing through the axis of rotation perpendicular to the feed direction of the pipe A. The front end 5 of the pipe with the speed W is inserted into the stationary heater ij which is moving. Begins heat treatment of it (Fig. 9). Previously, the check front end 5 reaches the clamping of the lever 3, brake and pipe 4 and retracts the heater backward with cKOpxJCTbjo V, J providing a constant relative speed v (FIG. 2, part b in FIG. 9), at the moment the pipe stops the bending lever of the speed of movement of the heater vv (FIG. 3, section c in FIG. 9). The front end is grabbed, the flexible pipe starts at the expense of P when the bending lever is turned and the rollers 6 and 7 are supported by the pipe on the pipe. At the same time, the speed of movement of the heater decreases as the result of getting close to the plane 5 passing through the axis O perpendicular to the direction W: K, the heater stops;
    5 and the speed of the pipe
    W reaches the value of v (FIG. 4, sections G} i d on fi g, 9).
    After obtaining the bent tubular section at the previous stage, the pipe is suspended (section G on,. 9) to release it from catch, and the magnetic device is retracted back at a speed vv (FIG. 5, section e in FIG. 9) Freed from the gripping tube is fed forward with an increase of 1 speed, the speed w, and the heater rl: ape.eschachayut opposite with decreasing speed G (Fig.6, section f on Lchgo 9)., After stopping the load
    0 5 0 0
    five
    Q g
    A pipe (section g in Fig. 9) moves the pipe forward at a speed w V until heat treatment has been performed on section 8 (Fig 8). After that, when about the camp, they move the pipe and suspend the heater (Fig. 8),
    During heat treatment of straight sections, the velocity V can be increased, with a simultaneous proportional increase in the amount of heat per unit of time after the temperature change, it is advisable to establish a control. For carrying out the method, it is advisable to use software control. Example: The method was tested on a pipe made of AP 1X52 with a diameter of 24 inches, wall thickness 1/2 inches, length 330 m. Heating begins when the pipe is extended 50 mm relative to a plane passing through the axis of rotation of the bending lever perpendicular to the feed direction with relative the speed of movement of the heater and the tube is 0.7 mm / s. When the tube is stirred for 600 mm, it is suspended and fixed in the bending lever,
    When moving the pipe forward by 2870 mm and reaching the bending lever, the lever is positioned at which the lever rotates at an angle of 90 ° i and the flow of the pipe is stopped. At the same time, by freeing the pipe from the clamp of the bending lever so that there is no obstacle to the movement of the pipe, the pipe starts to flow at a speed of 0.7 mm / s when the heating device is retracted back 100 mm.
    When the pipe is moved forward by 550 mm, heating and supply of the pipe is stopped and tempering is performed at 580 ° C for one hour.
    The invention makes it possible to continuously manufacture a bent metal pipe, undergoing a completely uniform heat treatment, at low cost and with high precision,
    权利要求:
    Claims (2)
    [1]
    1. A method of manufacturing bent metal pipes with predominantly straight end sections located on both sides of the bent central section, which includes heat treatment of the bent section by moving the pipe to be treated through a ring heating body that is movable along the angle of supply and has a narrow heating zone cooling, supplied with the heater, and bending with a bending lever gripping the pipe with a clamp, so that, in order to reduce costs and increase Sheni pipe quality alignment due to mechanical properties on the curved and straight portions before the heat pipe bent portion termoobraba- TYVA straight portion arranged on the part of the clip, and after completion of the bending of the central portion and releasing the pipe from the clamp termoobra-
     l "them.
    the other straight end section is bathed, while all areas are heat treated continuously while maintaining a constant
    the displacement of the pipe and the heater and the amount of heat given off by the heater per unit time, and when the pipe is gripped by the clamp and released
    from the Tpy6iy clamp, stop and simultaneously move the heating along the pipe,
    [2]
    2. Method 1, characterized in that it is relative
    the speed of movement of the pipe and the heater and the amount of heat given off by the heater per unit time, remain constant,
    LGVt
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    AND
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    (Rig.1
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    Fig. &
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    (rig 8
    Editor M. Tsitkina
    Compiled by L.Tkachenko Tehred M.Hodanich
    Order 6165/57 Circulation 731 Subscription
    VNISh State Committee of the USSR
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    FIG. 9
    Proofreader M. Demchik
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    同族专利:
    公开号 | 公开日
    JPS5942133A|1984-03-08|
    EP0102630B1|1988-05-11|
    DE3376531D1|1988-06-16|
    EP0102630A2|1984-03-14|
    EP0102630A3|1984-04-25|
    US4479372A|1984-10-30|
    AU553990B2|1986-07-31|
    CA1213421A|1986-11-04|
    JPS6044054B2|1985-10-01|
    AU1838183A|1984-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2661978C2|2014-05-27|2018-07-23|Ниппон Стил Энд Сумитомо Метал Корпорейшн|Method of manufacture of bend element and device for steel material hot bending|
    RU2711061C1|2016-10-05|2020-01-15|Ниппон Стил Корпорейшн|Method of manufacturing and device for manufacturing of stamped article|US2286893A|1937-08-23|1942-06-16|Pont A Mousson Fond|Apparatus and method for bending pipes, bars, plates, and like pieces|
    JPS554014B2|1974-07-11|1980-01-28|
    DE2559694C3|1974-07-23|1985-08-01|Daiichi Koshuha Kogyo K.K., Tokyo|Device for hot bending of metal pipes|
    US3958438A|1974-10-04|1976-05-25|Boris Stepanovich Somov|Apparatus for bending pipes with heating of the bending zone|
    US4006621A|1975-05-27|1977-02-08|Evgeny Nikolaevich Moshnin|Pipe bending machine|
    DE2546695C3|1975-10-17|1987-04-16|Daiichi Koshuha Kogyo K.K., Tokio/Tokyo, Jp|
    NL165667C|1976-09-03|1981-05-15|Cojafex|METHOD AND APPARATUS FOR CONTINUOUSLY BENDING OF LONG-LIKE OBJECTS SUCH AS TUBES.|
    SE7805811L|1977-05-31|1978-12-01|Prvni Brnenska Strojirna|DEVICE FOR BOOKING OF TUBES|
    NL7806051A|1977-06-22|1978-12-28|Daiichi Koshuha Kogyo Kk|METHOD AND DEVICE FOR BENDING LONG PIECES OF METAL.|
    JPS6218245B2|1979-09-21|1987-04-22|Daiichi Koshuha Kogyo Kk|JPS62192213A|1986-02-17|1987-08-22|Hokuriku Kenko Kk|Production of curved shape steel|
    JPH0363151U|1989-10-25|1991-06-20|
    US6612143B1|2001-04-13|2003-09-02|Orametrix, Inc.|Robot and method for bending orthodontic archwires and other medical devices|
    JP5162102B2|2006-05-10|2013-03-13|新日鐵住金株式会社|Bending method of deformed pipe, bending apparatus thereof, and bending product using them|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP57152655A|JPS6044054B2|1982-09-03|1982-09-03|
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