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    • 8. 发明授权
    • Hybrid shield device for a plasma arc torch
    • 用于等离子弧焊枪的混合屏蔽装置
    • US07935909B2
    • 2011-05-03
    • US11850012
    • 2007-09-04
    • Nakhleh A. HussaryChristopher J. ConwayThierry R. RenaultDarrin H. MacKenzie
    • Nakhleh A. HussaryChristopher J. ConwayThierry R. RenaultDarrin H. MacKenzie
    • B23K10/00
    • H05H1/3405H05H1/34H05H2001/3457Y10T137/0352
    • Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around a plasma stream that exits a tip in one of a swirling manner and a radial manner, and a second flow of auxiliary gas is directed around the first flow of auxiliary gas and the plasma stream in one of a coaxial manner, an angled manner, and a radial manner. The first flow of auxiliary gas functions to constrict and shape the plasma stream to improve cut quality and cut speed, and the second flow of auxiliary gas functions to protect the plasma arc torch during piercing and cutting and to cool components of the plasma arc torch such that thicker workpieces may be processed with a highly shaped plasma stream.
    • 提供了用于控制通过等离子体电弧焊炬的气体流动的方法和装置。 等离子体气体的流动被引导到等离子体室,辅助气体的第一流动围绕以旋转方式和径向方式之一离开尖端的等离子体流引导,并且辅助气体的第二流引导 以同轴方式,倾斜方式和径向方式中的一种辅助气体和等离子体流的第一流动。 辅助气体的第一流动起到压缩和形成等离子体流的作用,以提高切割质量和切割速度,辅助气体的第二流动用于在穿孔和切割过程中保护等离子弧焊炬并且冷却等离子弧焊炬的组件,例如 可以用高度成形的等离子体流来处理较厚的工件。
    • 9. 发明授权
    • Contoured shield orifice for a plasma arc torch
    • 等离子弧焊炬的轮廓屏蔽孔
    • US07737383B2
    • 2010-06-15
    • US11510822
    • 2006-08-25
    • Nakhleh A. HussaryChristopher J. ConwayThierry R. RenaultDarrin H. MacKenzie
    • Nakhleh A. HussaryChristopher J. ConwayThierry R. RenaultDarrin H. MacKenzie
    • B23K10/00
    • H05H1/34H05H2001/3457H05H2001/3478
    • A component for use in a plasma arc torch is provided that includes a continuously contoured surface extending along the component that directs a flow of shield gas at a predetermined angle to result in a specific pierce or cut location on a workpiece. In one form, the component is a shield cap that includes an exit orifice extending through a central portion of the shield cap, the exit orifice defining an inlet portion and an outlet portion, and a continuously contoured surface extending between the inlet portion and the outlet portion. The continuously contoured surfaces may be convergent, divergent, or a combination of convergent and divergent according to the principles of the present disclosure. Additionally, the shield cap may comprise a single, unitary piece or alternately a plurality of pieces or components.
    • 提供了一种用于等离子体电弧炬的部件,其包括沿着部件延伸的连续轮廓的表面,该表面以预定角度引导屏蔽气体流,导致工件上的特定的穿孔或切割位置。 在一种形式中,所述部件是屏蔽盖,其包括延伸穿过所述屏蔽盖的中心部分的出口孔,所述出口孔限定入口部分和出口部分,以及在所述入口部分和所述出口之间延伸的连续成型的表面 一部分。 根据本公开的原理,连续成型的表面可以是收敛的,发散的或收敛的和发散的组合。 另外,屏蔽帽可以包括单一的整体件或者多个件或组件。