A manufacturing method is provided. During this method, a preform component is provided for a turbine engine. The preform component includes a substrate. A preform meter section and a preform diffuser section are formed in the substrate. An internal coating is applied to at least the preform meter section to provide a meter section of a cooling aperture. External coating material is applied over the substrate. The applying of the external coating material forms an external coating over the substrate. The applying of the external coating also builds up the external coating material within the preform diffuser section to form a diffuser section of the cooling aperture.

The invention relates to a method and a system for the metal coating of a bore wall of a bore in a workpiece by means of atmospheric plasma spraying, wherein a coating lance having an anode and a cathode is moved axially into the bore and, in doing so, is rotated about its longitudinal axis, between the anode and the cathode an arc is produced, into which a plasma gas mixture is introduced and ionized, wherein a plasma flow is produced, a coating powder is supplied into the plasma flow and the plasma flow with the particles is sprayed onto the bore wall and on the bore wall a coating is formed. According to the invention provision is made in that the coating lance is moved into the bore at an axial feed speed and is rotated at a rotational speed of 420 rpm to 520 rpm and, at a volume flow of plasma gas mixture of 30 l/min to 70 l/min, coating powder is injected at a supply rate of 90 g/min to 130 g/min.

The invention relates to a method and a system for the metal coating of a bore wall of a bore in a workpiece by means of atmospheric plasma spraying, wherein a coating lance having an anode and a cathode is moved axially into the bore and, in doing so, is rotated about its longitudinal axis, between the anode and the cathode an arc is produced, into which a plasma gas mixture is introduced and ionized, wherein a plasma flow is produced, a coating powder is supplied into the plasma flow and the plasma flow with the particles is sprayed onto the bore wall and on the bore wall a coating is formed. According to the invention provision is made in that the coating lance is moved into the bore at an axial feed speed and is rotated at a rotational speed of 420 rpm to 520 rpm and, at a volume flow of plasma gas mixture of 30 l/min to 70 l/min, coating powder is injected at a supply rate of 90 g/min to 130 g/min.

A pipe according to the present disclosure comprises: a hollow tube body in which fluids of different temperatures pass through the inside and outside thereof; and a coating layer which is provided on an external surface of the hollow tube body, and which has an alloy comprising an amorphous phase, wherein the alloy comprises Fe, and comprises at least one or more first component selected from the group consisting of Cr, Mo and Co, and at least one or more second component selected from the group consisting of B, C, Si and Nb.

A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing chromium (Cr). The sprayed coating for the sliding member has the content rate of the chromium of 8 mass % or more, includes a structure that comprises crystal grains contained in the sprayed coating and having an average grain size of 3 μm or less, has a Vickers hardness of 300 Hv or more, and then is excellent at abrasion resistance.

A treatment device that performs treatment for forming a plating layer on a metal pipe material that is used as a material for hot forming, the treatment device includes a supply unit that supplies a plating material to an inner periphery-side surface of a welded portion formed in the metal pipe material.

A treatment device that performs treatment for forming a plating layer on a metal pipe material that is used as a material for hot forming, the treatment device includes a supply unit that supplies a plating material to an inner periphery-side surface of a welded portion formed in the metal pipe material.

The invention relates to an installation and a method for the metallic coating of a workpiece using a coating device, said coating device comprising a displaceable coating lance, by which a metal plasma jet can be generated to create a coating of metal particles. According to the invention, it is provided that the coating device with the coating lance and a measuring device for measuring the coating thickness are jointly integrated in the installation, and that the coating device with the coating lance as well as the measuring device are enclosed by a housing.

The invention relates to an installation and a method for the metallic coating of a workpiece using a coating device, said coating device comprising a displaceable coating lance, by which a metal plasma jet can be generated to create a coating of metal particles. According to the invention, it is provided that the coating device with the coating lance and a measuring device for measuring the coating thickness are jointly integrated in the installation, and that the coating device with the coating lance as well as the measuring device are enclosed by a housing.

A chemical conversion-treated steel pipe has a chemical conversion treatment film on a plated layer on a steel sheet. The plated layer is configured from a zinc alloy comprising 0.05-60 mass % aluminum and 0.1-10.0 mass % magnesium. The chemical conversion treatment film contains a fluorine resin, a base resin, metal flakes and a chemical conversion treatment component. The base resin is one or more selected from a group consisting of polyurethane, polyester, acrylic resins, epoxy resins and polyolefin. The content of fluorine resin with respect to the total amount of fluorine resin and base resin is at least 3.0 mass % calculated as fluorine atoms. The content of the base resin with respect to 100 parts by mass of the fluorine resin is at least 10 parts by mass. The content of metal flakes in the chemical conversion treatment film is greater than 20 mass % up to and including 60 mass %.