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公开(公告)号：US07487840B2
公开(公告)日：2009-02-10
申请号：US11116748
申请日：2005-04-28
CPC分类号： B32B15/011 , C22C38/02 , C22C38/04 , C22C38/32 , Y10S166/902
摘要： The present disclosure provides a method, system, apparatus, and related alloy to provide a protective wear coating on a downhole component for a well through a synergistic use of a thermal spraying process in combination with a novel iron-based alloy. The thermal spraying process melts the material to be deposited while a pressurized air stream sprays the molten material onto the downhole component. The coating operation takes place at low temperatures without fusion or thermal deterioration to the base material. The wear resistance is increased while providing a lower coefficient of friction by the wear resistant layer relative to a coefficient of friction of the downhole equipment without the wear resistant layer. In at least one embodiment, the disclosed process using the iron-based alloy can apply a much thicker coating than heretofore has been able to be applied without spalling and without necessitating an intermediate buffer layer.
摘要翻译： 本公开提供了一种方法，系统，装置和相关合金，以通过与新型铁基合金的组合使用热喷涂工艺来在井的井下部件上提供保护性耐磨涂层。 热喷涂工艺熔化要沉积的材料，而加压空气流将熔融材料喷射到井下部件上。 涂层操作在低温下进行，而不会对基材造成熔化或热劣化。 耐磨性提高，同时相对于没有耐磨层的井下设备的摩擦系数，由耐磨层提供较低的摩擦系数。 在至少一个实施方案中，使用铁基合金的所公开的方法可以施加比迄今为止能够施加而不剥落而不需要中间缓冲层的涂层更厚的涂层。
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公开(公告)号：US5857141A
公开(公告)日：1999-01-05
申请号：US661390
申请日：1996-06-11
CPC分类号： B23K35/3053 , B23K35/0266 , Y10T428/12111
摘要： A metal-core weld wire usable for gas shielded arc welding gapless joints on low carbon and low alloy galvanized and galvanealed steels. The metal-core weld wire includes a low carbon steel sheath surrounding a core composition. In one embodiment, the low carbon steel sheath includes, by total weight of the metal-core weld wire, between approximately 0.01-0.03% C, and the core composition includes, by total weight of the metal-core weld wire, between approximately 0.05-0.20% Ti, between approximately 0.05-1.00% Nb, Fe powder, and Mn to the extent that the metal-core weld wire includes between approximately 0.1-1.0% Mn wherein the metal-core weld wire includes between approximately 0.1-1.0% Si. The core composition is, by total weight of the metal-core weld wire, between approximately 0.001-12.0%. The metal-core weld wire provides, at weld rates up to 150 cm/min, reduced arc ionization potential and spatter, and improved arc stability and shielding. The metal-core weld wire produces, at weld rates up to 150 cm/min, weld deposits having reduced blow holes and porosity, no liquid metal embrittlement, and reduced weld pool surface tension resulting in an improved wetting characteristic.
摘要翻译： 一种金属芯焊丝，可用于低碳和低合金镀锌和镀锌钢的气体保护电弧焊缝隙接头。 金属芯焊丝包括围绕芯组合物的低碳钢护套。 在一个实施方案中，低碳钢护套包括金属芯焊丝的总重量在约0.01-0.03％C之间，并且芯组合物包括金属芯焊丝的总重量在约0.05 -0.20％的Ti，在约0.05-1.00％的Nb，Fe粉末和Mn之间，金属芯焊丝包括约0.1-1.0％的Mn，其中金属芯焊丝包括在约0.1-1.0％ Si。 核心组成是金属芯焊丝的总重量在约0.001-12.0％之间。 金属芯焊丝以高达150厘米/分钟的焊接速率提供减少的电弧电离电位和飞溅，并提高电弧稳定性和屏蔽性。 金属芯焊丝以高达150厘米/分钟的焊接速率生产具有减少的吹气孔和孔隙率的焊接沉积物，没有液体金属脆化，并且减少焊池表面张力，导致改善的润湿特性。
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公开(公告)号：US5824992A
公开(公告)日：1998-10-20
申请号：US665000
申请日：1996-06-11
CPC分类号： B23K35/0266 , B23K35/406 , B23K35/3053 , B23K35/3086
摘要： An improved metal-core weld wire, usable for joint and surface welding, having a steel sheath with a core, and a core composition disposed in the core of the steel sheath, wherein the core composition is between approximately 0.001-12.0% total weight of the metal-core wire. The metal-core wires of the present invention have improved manufacturability. In another embodiment, the core composition includes iron powder in an amount that provides an oxygen content less than approximately 600 ppm in the metal-core wire for producing weld deposits with improved impact strength properties.
摘要翻译： 一种可用于接合和表面焊接的改进的金属芯焊丝，其具有带有芯的钢护套和设置在钢护套的芯中的芯组合物，其中芯组合物的总重量为约0.001-12.0％ 金属芯线。 本发明的金属芯线具有提高的可制造性。 在另一个实施方案中，芯组合物包括在金属芯线中提供小于约600ppm的氧含量的铁粉，用于产生具有改进的冲击强度性质的焊接沉积物。
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