FLAME COATING MACHINE AND METHOD
    5.
    发明申请

    公开(公告)号:US20210354158A1

    公开(公告)日:2021-11-18

    申请号:US17287050

    申请日:2019-10-23

    Applicant: SAIPEM S.P.A.

    Abstract: A flame coating machine for coating field joints of a pipeline has a flame spray system having two flame spray units configured for heating and/or coating with a thermoplastic polymer an annular junction portion and two annular end portions of an existing coating delimiting the annular junction portion; a control system having two temperature sensors configured for acquiring temperature values along the surface collectively defined by the annular junction portion and the annular end portions, and a control unit configured for actuating the flame spray unit in a polymer flame spraying mode or in a flame heating mode as a function of the detected temperature values and at least one threshold value.

    Cylinder bore having variable coating

    公开(公告)号:US10746128B2

    公开(公告)日:2020-08-18

    申请号:US16686962

    申请日:2019-11-18

    Abstract: Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act as wells for lubricant.

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