利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

73 条记录 (耗时 0.017 秒)

    Method for controlling the temperature of a heated roll in a calender
    12.
    发明申请
    Method for controlling the temperature of a heated roll in a calender 失效
    用于控制压延机中加热辊温度的方法

    公开(公告)号：US20030209156A1

    公开(公告)日：2003-11-13

    申请号：US10366590

    申请日：2003-02-13

    申请人： Metso Paper, Inc.

    发明人： Pekka Linnonmaa ,  Juhani Partanen

    IPC分类号： B30B015/34 ,  B21B027/00

    CPC分类号： D21G1/0253 ,  B21B27/03 ,  B21B27/106 ,  B21B2027/086 ,  D21G1/0293

    摘要： A method for controlling the temperature of a heated roll in a calender is provided. The calender comprises at least one heated roll or thermoroll and at least one backing roll, between which is formed a nip through which the material web is conveyed. To the heated roll is supplied internal thermal power by internal heating means of the roll, and external thermal power by external heating means of the roll. Before changing the heated roll, internal thermal power is minimized within a specific period by control means provided in conjunction with the internal heating means; external thermal power is maximized within a specific period by control means provided in conjunction with the external heating means; and the surface temperature of and/or the thermal power released by the heated roll, which corresponds to the surface temperature and/or thermal power desired for the grade of the material web, is maintained within a specific period. The present invention further provides a method for changing the material web grade to another grade.

    摘要翻译： 提供了一种用于控制压延机中加热辊的温度的方法。 压延机包括至少一个加热辊或热滚筒和至少一个背衬辊，两个后辊之间形成有辊隙，通过该辊隙材料纤维网被输送。 通过辊的内部加热装置向加热的辊提供内部火力，通过辊的外部加热装置提供外部火力。 在更换加热辊之前，通过与内部加热装置一起提供的控制装置在一定的时间内将内部火力最小化。 通过与外部加热装置一起提供的控制装置在一定时间内将外部热功率最大化; 并且由特定的时间段保持由加热辊释放的表面温度和/或热功率，其对应于材料网的等级所需的表面温度和/或热功率。 本发明还提供了一种用于将材料纤维网等级改变为另一个等级的方法。

    Process for cold pilger rolling of thin-walled pipes
    13.
    发明授权
    Process for cold pilger rolling of thin-walled pipes 失效
    薄壁管冷滚机轧制工艺

    公开(公告)号：US5377515A

    公开(公告)日：1995-01-03

    申请号：US127868

    申请日：1993-09-28

    申请人： Michael Baensch

    发明人： Michael Baensch

    IPC分类号： B21B3/02 ,  B21B21/00 ,  B21B27/10 ,  B21B45/00 ,  B21B1/42 ,  B21B37/10

    CPC分类号： B21B21/00 ,  B21B21/005 ,  B21B27/106 ,  B21B3/02 ,  B21B45/004

    摘要： A process for cold pilger rolling of thin-walled pipes having small outer diameters in which calibrated rolls are moved along the intermittently stationary pipe, inside of which a roll mandrel which is likewise calibrated assists in the shaping of the inner and outer pipe in the shaping region. To produce pipes which are thinner and have thinner walls than was formerly possible, the pipe to be shaped and the shaping tools (rolls and roll mandrel) are warmed up to operating temperature before and/or during the starting rolling phase of the pipes to be shaped.

    摘要翻译： 一种具有小外径的薄壁管的冷滚筒滚压方法，其中校准辊沿着间歇静止的管移动，其中同样校准的辊心轴有助于成形中的内管和外管的成形 地区。 为了生产比以前更薄的壁并且具有比以前更薄的壁的管道，待成形的管和成形工具（辊和辊心轴）在管的起始轧制阶段之前和/或期间被加热到工作温度为 成形。