Aspects treat and remove a layer of scale comprising iron oxide and alloying elements oxides that is formed on an advanced high strength metal surface comprising at least two (2) percent by weight of alloy. A first conditioning process compromises structural integrity of or removes iron oxide within the scale layer to expose the alloy oxide to chemical engagement with a disposed aqueous alkali salt solution that is heated to transforming one or more alkali salts within the disposed solution into a quasi-molten form. The alloy oxide is oxidized via reaction with the solution quasi molten alkali salt(s) and water, forming one or more water soluble alkali alloy compounds. A water rinse dissolves and rinses the water soluble compound(s) from the steel product surface of the advanced high strength, leaving a film of iron oxide on the surface that is removed via a final pickling process.

Aspects treat and remove a layer of scale comprising iron oxide and alloying elements oxides that is formed on an advanced high strength metal surface comprising at least two (2) percent by weight of alloy. A first conditioning process compromises structural integrity of or removes iron oxide within the scale layer to expose the alloy oxide to chemical engagement with a disposed aqueous alkali salt solution that is heated to transforming one or more alkali salts within the disposed solution into a quasi-molten form. The alloy oxide is oxidized via reaction with the solution quasi molten alkali salt(s) and water, forming one or more water soluble alkali alloy compounds. A water rinse dissolves and rinses the water soluble compound(s) from the steel product surface of the advanced high strength, leaving a film of iron oxide on the surface that is removed via a final pickling process.

The invention relates to a system for the local surface treatment of an aeronautical part (1) to be treated.

Said system is characterised in that it comprises a plurality of containers (18, 19, 20, 21) each comprising a treatment product (22, 23, 24, 25), at least one bath enclosure (102a, 102b) suitable for delimiting a fluid-tight space (26a, 26b) between this bath enclosure (102a, 102b) and a portion (101a, 101b) of the part to be treated, and a controlled circuit (10) for supplying said fluid-tight space (26a, 26b) with treatment product (22, 23, 24, 25) the containers (18, 19, 20, 21) connecting at least this container (18, 19, 20, 21) to said fluid-tight space (26a, 26b) and comprising valves for managing the supply to the fluid-tight space by one or more containers from the plurality of containers.

The invention relates to a system for the local surface treatment of an aeronautical part (1) to be treated.

Said system is characterised in that it comprises a plurality of containers (18, 19, 20, 21) each comprising a treatment product (22, 23, 24, 25), at least one bath enclosure (102a, 102b) suitable for delimiting a fluid-tight space (26a, 26b) between this bath enclosure (102a, 102b) and a portion (101a, 101b) of the part to be treated, and a controlled circuit (10) for supplying said fluid-tight space (26a, 26b) with treatment product (22, 23, 24, 25) the containers (18, 19, 20, 21) connecting at least this container (18, 19, 20, 21) to said fluid-tight space (26a, 26b) and comprising valves for managing the supply to the fluid-tight space by one or more containers from the plurality of containers.

A rotating drum of a rotating drum-type workpiece cleaning device is provided with feed fins that extend helically along the inner circumferential surface of the drum body. The feed fins are, for example, fins in which metal sheets have been folded. On both sides of the feed fins, the angle of the internal corner between the feed fin and the inner circumferential surface of the drum body is an obtuse angle, for example, about 120 degrees. It is possible to prevent or limit the trapping of conveyed workpiece in the internal corner and trapping between adjacent fin sections.

A method includes applying flux solution during a soldering process. Metal ions are dissolved into the flux solution as a result of the soldering process. The method also includes rinsing the flux solution with a first rinse solution. The first rinse solution includes organic and/or sulfur species, and the organic and/or sulfur species stabilize the metal ions that are dissolved in the flux solution.

A method includes applying flux solution during a soldering process. Metal ions are dissolved into the flux solution as a result of the soldering process. The method also includes rinsing the flux solution with a first rinse solution. The first rinse solution includes organic and/or sulfur species, and the organic and/or sulfur species stabilize the metal ions that are dissolved in the flux solution.

A cushion tank device includes: a cushion tank configured to store pickling solution and sludge discharged from a pickling tank; a discharge pipe provided on a bottom of the cushion tank and configured to discharge the sludge to an outside of the cushion tank; and an opening/closing member configured to open and close the discharge pipe. The cushion tank device configure to guide the sludge to the discharge pipe, the inclined surface including an inclined surface part on a lower part of the cushion tank that is inclined to horizon at an angle greater than an angle of repose of the sludge with respect to an inner wall surface of the cushion tank.

A fixture for supporting articles in an industrial process includes a plurality of elongate members having a plurality of first elongate members, a plurality of second elongate members, and a plurality of third elongate members. Each of the plurality of first elongate members includes a rod member having a riveted portion at an end thereof. The rod member of one of the plurality of first elongate members extends through an aperture of one of the plurality of second elongate members and an aperture of one of the plurality of third elongate members and is movably coupled thereto by the riveted portion of the rod member.

A fixture for supporting articles in an industrial process includes a plurality of elongate members having a plurality of first elongate members, a plurality of second elongate members, and a plurality of third elongate members. Each of the plurality of first elongate members includes a rod member having a riveted portion at an end thereof. The rod member of one of the plurality of first elongate members extends through an aperture of one of the plurality of second elongate members and an aperture of one of the plurality of third elongate members and is movably coupled thereto by the riveted portion of the rod member.