公开(公告)号：US09822456B2

公开(公告)日：2017-11-21

申请号：US15333872

申请日：2016-10-25

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Youhao Yang ,  Liming Zhang ,  Yingna Wu ,  Lawrence James Whims ,  Hong Zhou ,  Hui Zhu ,  Chuan Lin

IPC: C23G1/02 ,  C23G5/00

CPC classification number: C23G1/02 ,  C23G5/00

Abstract: A method for removing oxide from a metallic substrate is described. The method includes providing a stream of boron trifluoride; heating the metallic substrate at a first temperature; and heating the metallic substrate at a second temperature different from the first temperature. An associated apparatus is also described.

公开(公告)号：US20190382898A1

公开(公告)日：2019-12-19

申请号：US16465066

申请日：2016-11-30

Applicant: Lawrence Bernard KOOL ,  Xubin GAO ,  Hui ZHU ,  Limin WANG ,  Hai CHANG ,  Dalong ZHONG ,  Aramco Services Company ,  General Electric Company

Inventor： Lawrence Bernard Kool ,  Xubin Gao ,  Hui Zhu ,  Limin Wang ,  Hai Chang ,  Dalong Zhong

IPC: C23C18/36 ,  C23C18/16 ,  C23C28/00

Abstract: A fluid conduit (10) is provided having (a) a fluid conduit exterior surface (14); (b) a fluid conduit interior surface (16); (c) an electroless nickel protective coating (18) disposed upon one or both of the fluid conduit interior surface and the fluid conduit exterior surface; and (d) a layer (20) of Ni3S2 disposed upon and substantially covering the electroless nickel protective coating. The fluid conduit can be any fluid conduit through which a fluid may be caused to pass, such as a downhole tubular used in oil and gas production, or a gas liquid cyclonic separator. And a hydrocarbon production tube, a method of producing a fluid conduit comprising a nickel sulfide protective layer, a machine component comprising at least one surface having a protective outer layer are provided. The combination of the electroless nickel inner protective coating with an outer layer of Ni3S2 affords articles such as fluid conduits and machine components with exceptional scale and corrosion resistance.