Method for heat treating with a microwave plasma torch
    1.
    发明授权
    Method for heat treating with a microwave plasma torch 失效
    用微波等离子体焰炬进行热处理的方法

    公开(公告)号:US4652723A

    公开(公告)日:1987-03-24

    申请号:US668165

    申请日:1984-11-01

    CPC分类号: H05H1/30 H05H1/3405

    摘要: A heat treating method in which a microwave plasma torch is used, comprising an outlet nozzle and a sleeve surrounding and spaced from the nozzle. The nozzle has a central passage surrounded by a generally annular passage formed preferably by a series of conduits arranged in a ring around the central passage. A plasmagenic gas is supplied to the central passage and a combustible gas to the annular passage, while microwave energy is supplied between the sleeve and the nozzle, thereby to form a central plasma jet sheathed by a flame of the burning combustible gas having a generally annular shape. The resulting plasma jet sheathed by a flame is much more stable and much longer, with a much more distinct contour, than in the absence of the flame. The plasma is stable both in the free atmosphere and when it is directed onto an object such as a metal plate. The heat transferred by the plasma sheathed by flame exceeds the sum of the quantities of heat transferred by the nonsheathed plasma alone and by the annular flame alone.

    摘要翻译: 使用微波等离子体焰炬的热处理方法,其包括出口喷嘴和围绕喷嘴的间隔开的套筒。 喷嘴具有中央通道,该中心通道由通常环形通道围绕,该通道优选地由围绕中心通道布置成环的一系列导管形成。 将等离子体气体供应到中央通道和可燃气体到环形通道,同时在套筒和喷嘴之间提供微波能量,从而形成由燃烧的可燃气体的火焰束缚的中心等离子体射流,其具有大致环形 形状。 由火焰包覆的等离子体射流比没有火焰更加稳定和长得多,具有更加明显的轮廓。 等离子体在自由气氛中以及当其被引导到诸如金属板的物体上时是稳定的。 被火焰所覆盖的等离子体传递的热量超过单独的非蒸发等离子体传递的热量和单独的环形火焰的总和。

    Hyperfrequency energy plasma torch
    2.
    发明授权
    Hyperfrequency energy plasma torch 失效
    超频能量等离子体焰炬

    公开(公告)号:US4645973A

    公开(公告)日:1987-02-24

    申请号:US656909

    申请日:1984-10-02

    IPC分类号: H05H1/30 H01J7/46 H01J7/24

    CPC分类号: H05H1/30

    摘要: The hyperfrequency energy is conveyed through a waveguide (1) having a rectangular section. A central plasmagenic gas and an annular sheathing gas are supplied through a T-shaped transverse pipe (2). The upper branches of the T extend in a sealed manner through the small sides of the waveguide. The stem of the T extends with clearance through an opening (7) formed in a large side of the waveguide and is provided with a nozzle (22) which is surrounded by a sleeve (3) terminating in a rolled-over flange (25). Application in the treatment of surfaces and the production of chemical reactions.

    摘要翻译: 超频能量通过具有矩形截面的波导(1)传送。 中心等离子体气体和环形护套气体通过T形横管(2)供应。 T的上分支通过波导的小边以密封的方式延伸。 T的杆通过形成在波导的大侧的开口(7)而间隙延伸并且设置有由终止于翻转凸缘(25)的套筒(3)围绕的喷嘴(22) 。 应用于表面处理和化学反应的生产。