公开(公告)号：US5958520A

公开(公告)日：1999-09-28

申请号：US114120

申请日：1998-07-13

Applicant: David James Cook ,  James Richard Baughman

Inventor： David James Cook ,  James Richard Baughman

IPC: C23C4/12 ,  C23C4/16

CPC classification number: C23C4/12 ,  Y10T29/49272

Abstract: A method of staggering reversal of thermal spray inside a cylinder bore of an internal combustion engine. The method includes the steps of thermally spraying a surface of the cylinder bore by moving a thermal spray gun along a length of the surface. The method also includes the steps of reversing a direction of travel of the thermal spray gun inside the cylinder bore at different points along the length of the surface to provide a multi-layered coating on the surface.

Abstract translation: 一种在内燃机的气缸孔内交错散热的方法。 该方法包括通过沿表面的长度移动热喷枪来热喷涂气缸孔的表面的步骤。 该方法还包括以下步骤：沿着表面的长度在不同的点处使热喷枪在气缸孔内的行进方向反转，以在表面上提供多层涂层。

公开(公告)号：US5938944A

公开(公告)日：1999-08-17

申请号：US61841

申请日：1998-04-09

Applicant: James Richard Baughman ,  David James Cook ,  Daniel R. Marantz ,  Keith A. Kowalsky

Inventor： James Richard Baughman ,  David James Cook ,  Daniel R. Marantz ,  Keith A. Kowalsky

IPC: B05D7/22 ,  B05B7/18 ,  B05B7/22 ,  B05B13/06 ,  B23K10/02 ,  C23C4/12 ,  B23K10/00

CPC classification number: B23K10/027 ,  B05B13/0636 ,  B05B7/224

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5922412A

公开(公告)日：1999-07-13

申请号：US48267

申请日：1998-03-26

Applicant: James Richard Baughman ,  David James Cook

Inventor： James Richard Baughman ,  David James Cook

IPC: C23C4/12

CPC classification number: C23C4/12 ,  B05B7/224 ,  B05B13/0636

Abstract: A method of eliminating unevenness in pass-reversal thermal spraying of a substrate surface by: uniformly thermally spraying a substrate surface by moving a wire fed arc spray gun along the length of the substrate surface at constant spray parameters while using a first wire feed rate and a first current level for the gun's power supply; (b) when said spray gun approaches an end zone of the pass length requiring reversal of spray gun movement, reducing the wire feed rate and current by up to about 25% until the spray gun has completed such reversal and has exited from said end zone in the opposite direction; (c) while still continuing thermal spraying, restoring the wire feed rage and current to said first levels; and (d) repeating steps (b) and (c) as the spray gun approaches other or repeated end zones of the substrate length during repeated passes.

Abstract translation: 一种通过以下步骤消除基板表面的通过反向热喷涂的不均匀性的方法：通过以恒定的喷射参数沿着基板表面的长度移动送丝电弧喷枪来均匀地热喷涂基板表面，同时使用第一焊丝进给速率， 枪支电源的第一级; （b）当所述喷枪接近需要反转喷枪运动的通过长度的端部区域时，将送丝速度和电流降低高达约25％，直到喷枪完成这种反转并且已经从所述端部区域退出 在相反的方向; （c）在仍然继续热喷涂的同时，将焊丝进给量恢复到第一级; 和（d）重复步骤（b）和（c），因为喷枪在重复通过期间接近基片长度的其他或重复的端部区域。