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    PLASMA CUTTING METHOD, AND PLASMA CUTTING APPARATUS
    1.
    发明公开
    PLASMA CUTTING METHOD, AND PLASMA CUTTING APPARATUS 有权
    Plasmaschneidvorrichtung

    公开(公告)号：EP2082824A1

    公开(公告)日：2009-07-29

    申请号：EP07829648.0

    申请日：2007-10-12

    申请人： Koike Sanso Kogyo Co., Ltd.

    发明人： KOIKE, Tetsuo ,  FURUJO, Akira ,  HIRAI, Ryuta

    IPC分类号： B23K10/00

    CPC分类号： B23K10/00 ,  B23K10/006 ,  B23K2201/18 ,  B23K2203/04

    摘要： The present invention relates to a cutting method for cutting an upper edge and a lower edge of a cutting plane into a curved shape, when a cutting object is cut by supplying plasma gas to the periphery of an electrode of a plasma torch and ejecting plasma arc from a nozzle. In order to melt the upper edge and the lower edge of the cutting plane to form a curved shape, at least one condition selected from plural conditions including a cutting electric current, cutting speed, height of a plasma torch, angle of the plasma torch, and flow rate of plasma gas upon performing the vertical cutting for forming the upper edge and the lower edge of the cutting object substantially at right angles is changed.

    摘要翻译： 本发明涉及一种将切割平面的上边缘和下边缘切割成弯曲形状的切割方法，当通过向等离子体焰炬的电极的周边提供等离子体气体并且喷射等离子体弧来切割切割对象时 从喷嘴。 为了熔化切割平面的上边缘和下边缘以形成弯曲形状，从包括切割电流，切割速度，等离子体焰炬的高度，等离子体焰炬的角度， 并且在执行用于大致成直角地形成切割对象的上边缘和下边缘的垂直切割时等离子体气体的流量发生变化。

    DEVICE FOR PROVIDING WATER STREAM ALONGSIDE PLASMA CUTTING TORCH
    2.
    发明公开
    DEVICE FOR PROVIDING WATER STREAM ALONGSIDE PLASMA CUTTING TORCH 审中-公开

    公开(公告)号：EP3730242A1

    公开(公告)日：2020-10-28

    申请号：EP18892404.7

    申请日：2018-12-18

    申请人： Koike Sanso Kogyo Co., Ltd.

    发明人： SAKAMOTO, Katsuhiko ,  FURUJO, Akira ,  KIMOTO, Ryousuke

    IPC分类号： B23K10/00

    摘要： To provide a device for reliably supplying water flow alongside a plasma cutting torch with a simple structure. The device (water flow device A) can be mounted to the plasma cutting torch to supply water flow alongside the plasma cutting torch, and the device includes an inner cylinder body 1 that is fitted to a main body 10 of a torch B, an outer cylinder body 2 that is arranged on an outer peripheral side of the inner cylinder body 1 to constitute a water chamber 4 between the outer cylinder body 2 and an outer peripheral surface 1a, a partition member 3 that is arranged between the inner cylinder body 1 and the outer cylinder body 2 so as to face the water chamber 4 to form a flow path 5 and the opening 6, the flow path 5 being formed between the partition member 3 and the outer peripheral surface 1a of the inner cylinder body 1, the opening 6 being formed to connect the water chamber 4 to the flow path 5, a connection member 8 that communicates with the water chamber 4 and to which a water supply member is connected to supply water to the water chamber 4, and an outlet 7 that is formed at an end of the flow path 5 to cause water passing through the flow path 5 to flow out in the form of cylinder.

    PLASMA CUTTING METHOD
    4.
    发明公开
    PLASMA CUTTING METHOD 有权
    PLASMASCHNEIDVERFAHREN

    公开(公告)号：EP2172297A1

    公开(公告)日：2010-04-07

    申请号：EP08765708.6

    申请日：2008-06-18

    申请人： Koike Sanso Kogyo Co., Ltd.

    发明人： FURUJO, Akira ,  MOTOYAMA, Masatoshi ,  ITO, Nobuo ,  SASAKI, Go ,  TAKARADA, Yasuyuki ,  MORISHITA, Kayoko ,  KUSUMOTO, Kazuomi

    IPC分类号： B23K10/00

    CPC分类号： B23K10/00 ,  B23K35/383

    摘要： [PROBLEMS] To reduce the generation of fume in cutting a material to be cut typified by a steel plate with plasma.
    [MEANS FOR SOLVING PROBLEMS] A plasma cutting method comprising spraying a plasma arc directed through a material to be cut from a plasma torch nozzle to cut the cutting material, wherein a plasma arc formed by supplying a mixed gas as a plasma gas composed of a single gas or a plurality of gases selected from halogen gases and rare gases belonging to up to the second row elements of the periodic table and a hydrogen gas, and oxygen-, argon- or nitrogen-containing gas to a part around an electrode, and electrifying a part between the electrode and the nozzle or between the electrode and the cutting material is sprayed toward the cutting material to cut the cutting material, or wherein a single gas or a plurality of gases selected from halogen gases or rare gases belonging to up to the second row elements of the periodic table and a hydrogen gas, together with the plasma arc composed mainly of an oxygen, argon or nitrogen gas, is sprayed toward the cutting material to cut the cutting material.

    摘要翻译： [问题]减少用等离子体钢板切割的切割材料中的烟气的产生。 解决问题的方法等离子体切割方法包括：喷射从等离子体焰炬喷嘴引导的待切割材料的等离子体电弧，切割切割材料，其中通过供给作为等离子体气体的混合气体形成的等离子体电弧 选自属于周期表的第二排元件的卤素气体和稀有气体的单一气体或多种气体，以及包含氧气，含氧气或含氮气体的氧气，氩气或含氮气体到电极周围的部分，以及 将电极和喷嘴之间或电极与切割材料之间的部分通电朝向切割材料喷射以切割切割材料，或者其中选自卤素气体或稀有气体中的单一气体或多种气体属于 周期表的第二排元件和氢气以及主要由氧气，氩气或氮气组成的等离子体电弧喷射到切割材料上以切割切割 terial。