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公开(公告)号：US5938944A
公开(公告)日：1999-08-17
申请号：US61841
申请日：1998-04-09
CPC分类号： B23K10/027 , B05B13/0636 , B05B7/224
摘要： A plasma transferred wire arc thermal spray apparatus and method producing an extended-arc and supersonic plasma jet stream for applying a dense metallic coating on a substrate, such as a concave internal surface of a bore. The apparatus includes a plasma generating torch assembling having a cathode and an anode nozzle surrounding the cathode and a wire feeder which continuously feeds the tip of a wire feedstock opposite a constricted nozzle orifice and wherein the wire feedstock is maintained at the same positive electrical potential as the nozzle. Plasma gas is directed into the nozzle, preferably generating a vortex flow around the cathode and exiting the restricted nozzle orifice. The improved apparatus includes a pilot power supply and a high voltage or high frequency power supply which initiates the electric arc and the constricted plasma arc and a separate main power supply which extends the constricted plasma arc to the wire tip. In the disclosed bore coating apparatus and method, the plasma torch assembly is rotated about the longitudinal axis of the wire feedstock while maintaining the electrical connection between the wire feedstock and the nozzle. The apparatus further includes an annular conical port surrounding the restricted nozzle orifice connected to a second gas source which generates an annular conical gas stream surrounding the wire tip having a point of intersection spaced downstream of the wire tip and the second gas is further directed to the wire feed guide to cool the assembly.
摘要翻译： 一种等离子体转移的线弧热喷涂装置和方法，其产生用于在诸如孔的凹内表面的基底上施加致密金属涂层的延伸电弧和超音速等离子体射流。 该装置包括具有阴极和围绕阴极的阳极喷嘴的等离子体发生火炬装配，以及连线进料器，其将线材原料的尖端连续地供给到与缩小的喷嘴孔口相对的位置，并且其中所述焊丝原料保持在与 喷嘴。 等离子体气体被引导到喷嘴中，优选地产生围绕阴极的涡流并离开限制的喷嘴孔口。 改进的装置包括引导电源和启动电弧和收缩的等离子体电弧的高压或高频电源以及将收缩的等离子体电弧延伸到电线尖端的单独的主电源。 在所公开的孔涂装置和方法中，等离子体焰炬组件绕线材原料的纵向轴线旋转，同时保持线材原料和喷嘴之间的电连接。 该装置还包括围绕限制喷嘴孔的环形圆锥形端口，其连接到第二气体源，该第二气体源产生围绕线尖的环形锥形气流，其具有在线尖端下游的交点，并且第二气体进一步被引导到 送丝导板冷却组件。
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2.发明授权Method and apparatus for the controlled supply of feedstock to a feedstock processing facility operating at high pressure 有权用于将原料受控供应给在高压下运行的原料加工设备的方法和装置公开(公告)号：US06651843B2
公开(公告)日：2003-11-25
申请号：US10012093
申请日：2001-11-13
IPC分类号： G01F1100
CPC分类号： B05B7/144 , B22F3/004 , C21C7/0037 , C23C4/12
摘要： A feedstock feeder for supplying feedstock to a system operating at a level of pressure. The feedstock feeder includes a pressure vessel having a pressure which is higher than the level of pressure; a mechanical feeder portion which meters the flow of feedstock to the system, the mechanical feeder portion located within the pressure vessel; a feedstock supplier which supplies feedstock to the mechanical feeder portion, the feedstock supplier located within the pressure vessel; a drive mechanism for driving a dynamically moving portion attached to the drive mechanism, the dynamically moving portion coupled to the mechanical feeder portion for moving the mechanical feeder portion; and wherein all dynamic seals operating to seal about the dynamically moving portion are positioned within the pressure vessel.
摘要翻译： 用于将原料供给到以压力水平运行的系统的原料给料器。 原料给料器包括压力容器，其压力高于压力水平; 机械进料器部分，其计量进料到系统的流动，机械进料部分位于压力容器内; 原料供应商，其将原料供应给机械进料部分，位于压力容器内的原料供应商; 用于驱动附接到所述驱动机构的动态移动部分的驱动机构，所述动态移动部分联接到所述机械馈送部分，用于移动所述机械馈送部分; 并且其中操作以围绕动态移动部分密封的所有动态密封件定位在压力容器内。
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公开(公告)号：US5468295A
公开(公告)日：1995-11-21
申请号：US169332
申请日：1993-12-17
IPC分类号： B05B7/08 , B05B7/22 , B05B13/06 , B23K9/04 , C23C4/12 , C23C4/14 , B05B5/00 , C23C4/00 , C23C16/00
CPC分类号： B23K9/048 , B05B13/06 , B05B7/0861 , B05B7/224 , C23C4/131 , C23C4/14 , B05B13/0636
摘要： A method of thermal spray coating a surface with a metal coating material includes the provision of a nozzle about a thermal spray coating apparatus, such as a two wire electric-arc apparatus. The nozzle includes a plurality of ports facing generally radially inwardly towards a coating material particle stream, such as an atomized molten metal stream of a two-wire arc thermal spray apparatus. The ports sequentially receive a deflecting gas flow, such that the direction moves circumferentially about the axis of the particle stream. The deflecting gas entrains the coating material and carries it radially to the surface of the part to be coated or the nozzle assembly. By utilizing a plurality of valve ports, one simplifies the assembly over prior art systems which have rotated the part to be coated. In one embodiment of this invention, a valve disk selectively communicates a compressed gas to the ports sequentially. In a second embodiment, each of the ports are associated with individual electrically operated valves which are sequentially opened to achieve the changing direction of the deflecting gas flow. A method and apparatus for simultaneously coating a plurality of bores main body, such as an engine block, is also disclosed. The apparatus includes a plurality of deflecting nozzles which are simultaneously inserted in each of the bore. The preferred method includes initiating an axial particulate coating stream, prior to inserting the deflecting nozzles in the bores, then inserting the nozzles in the bores and deflecting stream radially, to coat all of the bores simultaneously.
摘要翻译： 用金属涂层材料热喷涂表面的方法包括提供关于热喷涂装置的喷嘴，例如双线电弧装置。 喷嘴包括多个面向大致径向向内朝向涂层材料颗粒流（例如两线弧形热喷涂装置的雾化熔融金属流）的端口。 端口顺序地接收偏转气流，使得该方向围绕颗粒流的轴线周向移动。 偏转气体夹带涂层材料并将其径向运送到待涂覆部件或喷嘴组件的表面。 通过利用多个阀口，可以简化与已经旋转待涂覆部件的现有技术系统的组装。 在本发明的一个实施例中，阀盘选择性地将压缩气体顺序地连通到端口。 在第二实施例中，每个端口与单独的电动阀相关联，这些电动阀顺序打开以实现偏转气流的改变方向。 还公开了一种用于同时涂覆多个孔体的方法和装置，例如发动机缸体。 该装置包括同时插入每个孔中的多个偏转喷嘴。 优选的方法包括在将偏转喷嘴插入孔之前引发轴向颗粒涂覆流，然后将喷嘴插入孔中并径向偏转流，同时涂覆所有的孔。
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公开(公告)号：US5808270A
公开(公告)日：1998-09-15
申请号：US799242
申请日：1997-02-14
CPC分类号： B23K10/027 , B05B13/0636 , B05B7/224
摘要： A plasma transferred wire arc thermal spray apparatus and method producing an extended-arc and supersonic plasma jet stream for applying a dense metallic coating on a substrate, such as a concave internal surface of a bore. The apparatus includes a plasma generating torch assembling having a cathode and an anode nozzle surrounding the cathode and a wire feeder which continuously feeds the tip of a wire feedstock opposite a constricted nozzle orifice and wherein the wire feedstock is maintained at the same positive electrical potential as the nozzle. Plasma gas is directed into the nozzle, preferably generating a vortex flow around the cathode and exiting the restricted nozzle orifice. The improved apparatus includes a pilot power supply and a high voltage or high frequency power supply which initiates the electric arc and the constricted plasma arc and a separate main power supply which extends the constricted plasma arc to the wire tip. In the disclosed bore coating apparatus and method, the plasma torch assembly is rotated about the longitudinal axis of the wire feedstock while maintaining the electrical connection between the wire feedstock and the nozzle. The apparatus further includes an annular conical port surrounding the restricted nozzle orifice connected to a second gas source which generates an annular conical gas stream surrounding the wire tip having a point of intersection spaced downstream of the wire tip and the second gas is further directed to the wire feed guide to cool the assembly.
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5.发明授权Method for thermal spray coating interior surfaces using deflecting gas nozzles 失效使用偏转气体喷嘴热喷涂内表面的方法
公开(公告)号：US5714205A
公开(公告)日：1998-02-03
申请号：US459789
申请日：1995-06-02
CPC分类号： B23K9/048 , B05B13/06 , B05B7/0861 , B05B7/224 , C23C4/131 , C23C4/14 , B05B13/0636
摘要： A method of thermal spray coating a surface with a metal coating material includes the provision of a nozzle about a thermal spray coating apparatus, such as a two wire electric-arc apparatus. The nozzle includes a plurality of ports facing generally radially inwardly towards a coating material particle stream, such as an atomized molten metal stream of a two-wire arc thermal spray apparatus. The ports sequentially receive a deflecting gas flow, such that the direction moves circumferentially about the axis of the particle stream. The deflecting gas entrains the coating material and carries it radially to the surface of the part to be coated or the nozzle assembly. By utilizing a plurality of valve ports, one simplifies the assembly over prior art systems which have rotated the part to be coated. In one embodiment of this invention, a valve disk selectively communicates a compressed gas to the ports sequentially. In a second embodiment, each of the ports are associated with individual electrically operated valves which are sequentially opened to achieve the changing direction of the deflecting gas flow. A method and apparatus for simultaneously coating a plurality of bores main body, such as an engine block, is also disclosed. The apparatus includes a plurality of deflecting nozzles which are simultaneously inserted in each of the bore. The preferred method includes initiating an axial particulate coating stream, prior to inserting the deflecting nozzles in the bores, then inserting the nozzles in the bores and deflecting stream radially, to coat all of the bores simultaneously.
摘要翻译： 用金属涂层材料热喷涂表面的方法包括提供关于热喷涂装置的喷嘴，例如双线电弧装置。 喷嘴包括多个面向大致径向向内朝向涂层材料颗粒流（例如两线弧形热喷涂装置的雾化熔融金属流）的端口。 端口顺序地接收偏转气流，使得该方向围绕颗粒流的轴线周向移动。 偏转气体夹带涂层材料并将其径向运送到待涂覆部件或喷嘴组件的表面。 通过利用多个阀口，可以简化与已经旋转待涂覆部件的现有技术系统的组装。 在本发明的一个实施例中，阀盘选择性地将压缩气体顺序地连通到端口。 在第二实施例中，每个端口与单独的电动阀相关联，这些电动阀顺序打开以实现偏转气流的改变方向。 还公开了一种用于同时涂覆多个孔体的方法和装置，例如发动机缸体。 该装置包括同时插入每个孔中的多个偏转喷嘴。 优选的方法包括在将偏转喷嘴插入孔之前引发轴向颗粒涂覆流，然后将喷嘴插入孔中并径向偏转流，同时涂覆所有的孔。
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6.发明授权
公开(公告)号：US5442153A
公开(公告)日：1995-08-15
申请号：US209160
申请日：1994-03-10
IPC分类号： B23K10/00 , B05B7/22 , B05B13/06 , B23K10/02 , C23C4/12 , H05H1/26 , H05H1/32 , H05H1/34 , H05H1/42
摘要： A high velocity arc spray apparatus includes a transferred-arc-plasma torch assembly which forms a transferred-arc column. A metal feedstock is fed into the transferred-arc column at an angle such that no portion of the metal feedstock is closer to the transferred-arc-plasma torch assembly than the leading edge of the metal feedstock in the feeding direction. A power source is coupled to both the metal feedstock and transferred-arc-plasma torch assembly for creating an electrical potential difference between the metal feedstock and the transferred torch assembly.
摘要翻译： 高速电弧喷涂装置包括形成转移弧柱的转移电弧等离子体焰炬组件。 金属原料以一定角度进给到转移弧柱中，使得金属原料的任何部分比在馈送方向上的金属原料的前缘更接近于转移的电弧等离子体焰炬组件。 电源耦合到金属原料和转移电弧等离子体焰炬组件，以在金属原料和转移的炬组件之间形成电势差。
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7.发明授权
公开(公告)号：US5296667A
公开(公告)日：1994-03-22
申请号：US576632
申请日：1990-08-31
IPC分类号： B23K10/00 , B05B7/22 , B05B13/06 , B23K10/02 , C23C4/12 , H05H1/26 , H05H1/32 , H05H1/34 , H05H1/42 , B23K9/00
摘要： A high velocity arc spray apparatus includes a transferred-arc-plasma torch assembly which forms a transferred-arc column. A metal feedstock is fed into the transferred-arc column at an angle such that no portion of the metal feedstock is closer to the transferred-arc-plasma torch assembly than the leading edge of the metal feedstock in the feeding direction. A power source is coupled to both the metal feedstock and transferred-arc-plasma torch assembly for creating an electrical potential difference between the metal feedstock and the transferred torch assembly.
摘要翻译： 高速电弧喷涂装置包括形成转移弧柱的转移电弧等离子体焰炬组件。 金属原料以一定角度进给到转移弧柱中，使得金属原料的任何部分比在馈送方向上的金属原料的前缘更接近于转移的电弧等离子体焰炬组件。 电源耦合到金属原料和转移电弧等离子体焰炬组件，以在金属原料和转移的炬组件之间形成电势差。
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公开(公告)号：US08581138B2
公开(公告)日：2013-11-12
申请号：US13334851
申请日：2011-12-22
IPC分类号： B23K10/00
CPC分类号： B05B7/224
摘要： A method of thermally depositing metal onto a target surface using a plasma transferred wire arc thermal spray apparatus, wherein the method includes the steps of offsetting the central axis of a consumable wire with respect to an axial centerline of a constricting orifice; and establishing and operating a plasma transferred wire arc between a cathode and a free end of the consumable wire; and melting and atomizing a continually fed free end of the consumable wire into molten metal particles and projecting the particles onto said target surface.
摘要翻译： 一种使用等离子体转移线弧热喷涂装置将金属热沉积到目标表面上的方法，其中该方法包括以下步骤：相对于收缩孔的轴向中心线抵消消耗线的中心轴线; 以及建立和操作等离子体转移的线弧线在可消耗线材的阴极和自由端之间; 并将可消耗线材的连续供给的自由端熔化和雾化成熔融金属颗粒并将颗粒投影到所述目标表面上。
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公开(公告)号：US20120160813A1
公开(公告)日：2012-06-28
申请号：US13334851
申请日：2011-12-22
IPC分类号： B23K9/00
CPC分类号： B05B7/224
摘要： A method of thermally depositing metal onto a target surface using a plasma transferred wire arc thermal spray apparatus, wherein the method includes the steps of offsetting the central axis of a consumable wire with respect to an axial centerline of a constricting orifice; and establishing and operating a plasma transferred wire arc between a cathode and a free end of the consumable wire; and melting and atomizing a continually fed free end of the consumable wire into molten metal particles and projecting the particles onto said target surface.
摘要翻译： 一种使用等离子体转移线弧热喷涂装置将金属热沉积到目标表面上的方法，其中该方法包括以下步骤：相对于收缩孔的轴向中心线抵消消耗线的中心轴线; 以及建立和操作等离子体转移的线弧线在可消耗线材的阴极和自由端之间; 并将可消耗线材的连续供给的自由端熔化和雾化成熔融金属颗粒并将颗粒投影到所述目标表面上。
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公开(公告)号：US5019686A
公开(公告)日：1991-05-28
申请号：US247024
申请日：1988-09-20
申请人： Daniel R. Marantz
发明人： Daniel R. Marantz
摘要： A supersonic flame spray apparatus capable of forming a high-energy stream of a particulate feedstock for flame spray applications. The flame spray apparatus includes a converging throat in which a two-stage exothermic reaction is created and maintained comprising a flame front and a steady-state continuous detonation. As fuel gas is injected into the flame front, a steady-state continuous detonation reaction is achieved in a fuel-rich zone. A partriculate feedstock is fed into the converging throat at a low-pressure region of the continuous detonation and then passes through the flame front heating the particles. The heated particles are entrained in the expanding combustion gases which flow in an axial high-velocity collimated particle spray stream through a tubular barrel. In one aspect, the flame spray apparatus includes a two-wire arc assembly positioned spatially along the axial center line of the particle stream exiting the barrel. The wires are melted by an electric arc in an arc zone and the molten metal is atomized by the collimated particle stream emerging from the barrel outlet to form a composite particle stream which contains two dissimilar feedstocks. Spray-formed materials are also provided including substantially fully dense metal-matrix composites which may be formed as coatings or as freestanding near-net shapes.
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