公开(公告)号：US20090098002A1

公开(公告)日：2009-04-16

申请号：US12323039

申请日：2008-11-25

Applicant: James COULAS

Inventor： James COULAS

IPC: F01C21/08 ,  B05D1/08 ,  C23C4/10 ,  C23C4/06

CPC classification number: C23C4/06 ,  C23C4/02 ,  C23C4/067 ,  C23C4/129 ,  F01C1/107 ,  F04C2/084 ,  F04C2/1073 ,  F04C2230/41 ,  F04C2230/91 ,  F04C2230/92 ,  F04C2240/20

Abstract: A method of hardfacing a metal body, including the steps of flame spraying a metallic material onto a surface of the metal body to produce a layer of the metallic material on the metal body and fusing the layer of metallic material to provide a hardfacing layer, is improved by roughening the surface of the metal body prior to the step of flame spraying to provide a mechanical bond between the metal body and the hardfacing layer. The roughening is carried out to achieve a surface roughness adjusted to the thickness of the hardcoating. The surface roughness is preferably 40%-90% of the thickness of the hardfacing layer. A rotor for a progressing cavity pump/motor, including a metallic rotor body having a surface, and a layer of hardfacing on the surface, the hardfacing comprising of fused flame sprayed metallic material, the surface of the rotor body having an average surface roughness of at least substantially 6 mils with irregular protrusions for providing a mechanical bond between the rotor body and the hardfacing.

Abstract translation: 一种金属体的表面硬化方法，包括以下步骤：将金属材料火焰喷涂到金属体的表面上，以在金属体上产生金属材料层并使该金属材料层熔融以提供表面层， 通过在火焰喷涂步骤之前使金属体的表面粗糙化以在金属体和表面堆积层之间提供机械结合来改进。 进行粗糙化以达到调整到硬涂层厚度的表面粗糙度。 表面粗糙度优选为表面层的厚度的40％-90％。 一种用于前进腔泵/电动机的转子，包括具有表面的金属转子体和表面上的表面硬化层，由熔融火焰喷射的金属材料组成的表面硬化物，转子体的表面具有平均表面粗糙度 至少大致6密耳，具有不规则突起，用于在转子体和表面硬化之间提供机械结合。

公开(公告)号：US20110186566A1

公开(公告)日：2011-08-04

申请号：US13017669

申请日：2011-01-31

Applicant: James COULAS ,  Robert A.R. MILLS

Inventor： James COULAS ,  Robert A.R. MILLS

IPC: H05B6/10

CPC classification number: H05B6/102 ,  C21D1/42 ,  C21D9/0068 ,  C21D9/28 ,  C21D11/00 ,  F04B15/023 ,  F04B53/00 ,  F04C2/1073 ,  F04C15/0096 ,  F04C2230/41 ,  F04C2240/20 ,  H05B6/40 ,  Y02P10/253

Abstract: Embodiments of the invention provide a system and method for induction heating a helical rotor of a progressing cavity pump in order to reduce the surface roughness of the rotor. In order to heat the rotor most evenly, it is desired to space the coil as closely around the rotor as possible. The invention provides a mechanism for threading the helical rotor through an induction coil having an interior diameter which is less than the major diameter of the rotor. The induction coil may include one loop and overlapping ends. The rotor to be heated is rotated about its longitudinal axis and advanced axially through the coil as it rotates. The axial speed and rotational speed are synchronized so that the rotor moves one pitch through the coil for each complete rotation.

Abstract translation: 本发明的实施例提供了一种用于感应加热前进腔泵的螺旋转子的系统和方法，以便减小转子的表面粗糙度。 为了最均匀地加热转子，期望将线圈尽可能靠近转子放置。 本发明提供了一种用于使螺旋转子穿过具有小于转子主直径的内径的感应线圈的机构。 感应线圈可以包括一个环和重叠端。 待加热的转子围绕其纵向轴线旋转并在其旋转时轴向前进通过线圈。 轴向速度和旋转速度是同步的，因此每转动一次，转子将通过线圈移动一个节距。

公开(公告)号：US20100126878A1

公开(公告)日：2010-05-27

申请号：US12325808

申请日：2008-12-01

Applicant: Jovica Marjanovic ,  James Coulas ,  Robert A.R. Mills

Inventor： Jovica Marjanovic ,  James Coulas ,  Robert A.R. Mills

IPC: C25F3/06

CPC classification number: C25F5/00

Abstract: A method for stripping a fused thermal spray metal coating from the surface of a soft metallic substrate. The steps for the method include: immersing the coated metallic substrate in an aqueous solution of chromic acid, peroxide, and a second acid; immersing a metal cathode in the aqueous solution; applying a positive potential to the fused spray metal coated substrate and a negative potential to the metal cathode to generate a direct current between the substrate and the cathode; where the current is applied for a sufficient time to remove the coating. This method permits the electrochemical removal of fused and impermeable thermal spray metal coatings.

Abstract translation: 一种用于从软金属基材的表面剥离熔融热喷涂金属涂层的方法。 该方法的步骤包括：将涂覆的金属基材浸入铬酸，过氧化物和第二酸的水溶液中; 将金属阴极浸入水溶液中; 对熔融的喷涂金属涂覆的基底施加正电势，并向金属阴极施加负电位以在衬底和阴极之间产生直流电; 其中电流被施加足够的时间以去除涂层。 该方法允许电化学去除熔喷和不可渗透的热喷涂金属涂层。

公开(公告)号：US20080069715A1

公开(公告)日：2008-03-20

申请号：US11858388

申请日：2007-09-20

Applicant: James COULAS

Inventor： James COULAS

IPC: F04C2/107 ,  C23C4/06 ,  C23C4/10

CPC classification number: F04C2/1073 ,  C23C4/06 ,  C23C4/067 ,  C23C4/129 ,  F04C2/084 ,  F04C2230/91 ,  F04C2230/92 ,  F04C2240/20

Abstract: A method of hardfacing a metal body, including the steps of flame spraying a metallic material onto a surface of the metal body to produce a layer of the metallic material on the metal body and fusing the layer of metallic material to provide a hardfacing layer, is improved by roughening the surface of the metal body prior to the step of flame spraying to provide a mechanical bond between the metal body and the hardfacing layer. The roughening is carried out to achieve a surface roughness adjusted to the thickness of the hardcoating. The surface roughness is preferably 40%-90% of the thickness of the hardfacing layer. A rotor for a progressing cavity pump/motor, including a metallic rotor body having a surface, and a layer of hardfacing on the surface, the hardfacing comprising of fused flame sprayed metallic material, the surface of the rotor body having an average surface roughness of at least substantially 6 mils with irregular protrusions for providing a mechanical bond between the rotor body and the hardfacing.

Abstract translation: 一种金属体的表面硬化方法，包括以下步骤：将金属材料火焰喷涂到金属体的表面上，以在金属体上产生金属材料层并使该金属材料层熔融以提供表面层， 通过在火焰喷涂步骤之前使金属体的表面粗糙化以在金属体和表面堆积层之间提供机械结合来改进。 进行粗糙化以达到调整到硬涂层厚度的表面粗糙度。 表面粗糙度优选为表面层的厚度的40％-90％。 一种用于前进腔泵/电动机的转子，包括具有表面的金属转子体和表面上的表面硬化层，由熔融火焰喷射的金属材料组成的表面硬化物，转子体的表面具有平均表面粗糙度 至少大致6密耳，具有不规则突起，用于在转子体和表面硬化之间提供机械结合。

公开(公告)号：US08723088B2

公开(公告)日：2014-05-13

申请号：US13017669

申请日：2011-01-31

Applicant: James Coulas ,  Robert A. R. Mills

Inventor： James Coulas ,  Robert A. R. Mills

IPC: H05B6/40

CPC classification number: H05B6/102 ,  C21D1/42 ,  C21D9/0068 ,  C21D9/28 ,  C21D11/00 ,  F04B15/023 ,  F04B53/00 ,  F04C2/1073 ,  F04C15/0096 ,  F04C2230/41 ,  F04C2240/20 ,  H05B6/40 ,  Y02P10/253

Abstract: Embodiments of the invention provide a system and method for induction heating a helical rotor of a progressing cavity pump in order to reduce the surface roughness of the rotor. In order to heat the rotor most evenly, it is desired to space the coil as closely around the rotor as possible. The invention provides a mechanism for threading the helical rotor through an induction coil having an interior diameter which is less than the major diameter of the rotor. The induction coil may include one loop and overlapping ends. The rotor to be heated is rotated about its longitudinal axis and advanced axially through the coil as it rotates. The axial speed and rotational speed are synchronized so that the rotor moves one pitch through the coil for each complete rotation.

Abstract translation: 本发明的实施例提供了一种用于感应加热前进腔泵的螺旋转子的系统和方法，以便减小转子的表面粗糙度。 为了最均匀地加热转子，期望将线圈尽可能靠近转子放置。 本发明提供了一种用于使螺旋转子穿过具有小于转子主直径的内径的感应线圈的机构。 感应线圈可以包括一个环和重叠端。 待加热的转子围绕其纵向轴线旋转并在其旋转时轴向前进通过线圈。 轴向速度和旋转速度是同步的，因此每转动一次，转子将通过线圈移动一个节距。

公开(公告)号：US20070071921A1

公开(公告)日：2007-03-29

申请号：US11533735

申请日：2006-09-20

Applicant: James Coulas

Inventor： James Coulas

IPC: B05D1/08 ,  C23C4/00 ,  B05D3/00 ,  B28B11/00

CPC classification number: C23C4/02 ,  C23C4/06 ,  C23C4/129 ,  C23C4/18 ,  F01C21/08 ,  F04C2/1071 ,  F04C2/1073 ,  F04C13/008 ,  F04C2230/91 ,  F04C2230/92 ,  Y10T428/131

Abstract: A method of hardfacing a metal body, including the steps of flame spraying a metallic material onto a surface of the metal body to produce a layer of the metallic material on the metal body and fusing the layer of metallic material to provide a hardfacing layer, is improved by roughening the surface of the metal body prior to the step of flame spraying to provide a mechanical bond between the metal body and the hardfacing layer. The roughening is carried out to achieve a surface roughness adjusted to the thickness of the hardcoating. The surface roughness is preferably 40%-90% of the thickness of the hardfacing layer. A rotor for a progressing cavity pump/motor, including a metallic rotor body having a surface, and a layer of hardfacing on the surface, the hardfacing comprising of fused flame sprayed metallic material, the surface of the rotor body having an average surface roughness of at least substantially 6 mils with irregular protrusions for providing a mechanical bond between the rotor body and the hardfacing.

Abstract translation: 一种金属体的表面硬化方法，包括以下步骤：将金属材料火焰喷涂到金属体的表面上，以在金属体上产生金属材料层并使该金属材料层熔融以提供表面层， 通过在火焰喷涂步骤之前使金属体的表面粗糙化以在金属体和表面堆积层之间提供机械结合来改进。 进行粗糙化以达到调整到硬涂层厚度的表面粗糙度。 表面粗糙度优选为表面层的厚度的40％-90％。 一种用于前进腔泵/电动机的转子，包括具有表面的金属转子体和表面上的表面硬化层，由熔融火焰喷射的金属材料组成的表面硬化物，转子体的表面具有平均表面粗糙度 至少大致6密耳，具有不规则突起，用于在转子体和表面硬化之间提供机械结合。