A wet blast machine for cleaning or preparing surfaces comprises: a treatment source for providing a pressurised mixture of treatment material; a nozzle, the nozzle comprising: an inlet for receiving the pressurised mixture of treatment material; an outlet for ejecting the pressurised mixture; and at least one hole in a wall of the nozzle, the hole for feeding one or more products into the nozzle such that one or more surfaces of the product are exposed to the treatment material whilst within the nozzle, allowing for a more efficient wet blast of the products.

A method for creating a three-dimensional (3D) mark in a protective coating including at least one of a TBC and a bond coating over a metal part, is provided. The method may include positioning a mask over the protective coating, the mask including an opening pattern therein; and performing an abrasive waterjet process on the protective coating using the mask. The abrasive waterjet erodes a first portion of the protective coating exposed through the first opening pattern to create the 3D mark. The mask is removed, leaving the 3D mark in the protective coating. The 3D mark only partially penetrates through the protective coating. A metal part may include a metal body, a protective coating over the metal body, and the 3D mark in the protective coating, is also provided. The 3D mark in the protective coating may include an opening having a width of between 30 and 300 micrometers.

Methods of cleaning flow path components of power systems, and sump purge kits used in the same or related methods are disclosed. A method of cleaning may include removing a casing of the turbine system to expose a rotor of the turbine system, a plurality of flow path components coupled to the rotor and/or the casing, and a sump system in communication with the rotor. The method may also include pressurizing the sump system in communication with the rotor, and sealing a plurality of openings formed in the rotor. Additionally, the method may include exposing the rotor and the plurality of flow path components to steam to dry hydrocarbons formed on a surface of the rotor and a surface of the plurality of flow path components, and blasting the rotor and the plurality of flow path components with solid carbon dioxide (CO.sub.2) to dislodge the dried hydrocarbons.

A method for removing a component fixed to an aeronautical part, the aeronautical part comprising a first material, and the component comprising a second material different from the first material, the method comprising steps of determining the thicknesses of the component as a function of the position on the component, and of removing the component by means of a pressurized water jet moving over the component as a function of the thicknesses determined in the determination step.

An apparatus for descaling an inner surface of a bending steel pipe includes a support pallet supporting a plurality of bending steel pipes of which first ends and second ends are opened, the plurality of bending steel pipes being disposed in one direction on the support pallet, a stopper part selectively stopping the first ends and the second ends of the plurality of bending steel pipes, a shot ball supply part supplying shot balls to inner portions of the plurality of bending steel pipes through one of the first ends or the second ends of the plurality of bending steel pipes, and a high frequency vibration part on which the support pallet is seated and which performs high frequency vibrations to shot-peen the inner portions of the plurality of bending steel pipes supported by the support pallet.

A cleaning process (blasted-particles cleaning process) includes performing, a plural number of consecutive cycles, an ultrasonic cleaning treatment including immersing a turbine rotor blade in a water basin and conducting an ultrasonic wave into the water basin to clean the turbine rotor blade, and a pressurized-water cleaning treatment including spraying pressurized water into an internal cooling flow channel after the ultrasonic cleaning treatment is performed. The cleaning process is performed after a bonding coat layer removing process of removing a bonding coat layer (first coating layer) by chemical treatment, and a cleaning process of cleaning the turbine blade by blast treatment. Heat tinging process is then performed.

A method for descaling a sheet of metal include first and second descaling components that each have a single motor driven slurry propelling impeller mounted on a top and bottom of an enclosure. The top and bottom mounted impellers of the first component are configured to propel slurry onto a sheet of metal passing through the enclosure across the entire width of the sheet of metal in a first direction extending from one lateral side to an opposite lateral side of the enclosure. The top and bottom mounted impellers of the second component are configured to propel slurry onto a sheet of metal passing through the enclosure across the entire width of the sheet of metal in a second direction opposite the first direction and extending from the opposite lateral side to the one lateral side of the enclosure.

Provided is a method of manufacturing a vibration transmission member for an ultrasonic treatment tool. The method includes: applying a release agent between a surface of a vibration transmission member configured to transmit ultrasonic vibration and a die for hot forging; performing hot forging to form the vibration transmission member after the applying of the release agent; removing, after the performing of the hot forging, a part of an oxide film formed in the performing of the hot forging by a first surface treatment; performing pickling to remove the oxide film after the removing of the part of the oxide film by a blasting treatment; and performing coating with a resin after the performing of the pickling.

Systems and methods for cleaning and preparing a surface are described. The system includes a housing with a first hopper configured to receive a first material and a second hopper configured to receive a second material. A tube housing an auger may be located where the two hoppers meet. In this way, the materials are mixed in the tube before being pushed through a hose to a nozzle. The mixture can be sprayed out of the nozzle. The mixture only requires a single air source, and the system operates using a combination of gravity, venturi suction, vibration, an auger and the like.

A method for treating wooden barrels, including a step of spraying a grit-based and/or a slag-based abrasive onto at least one portion of the inside surface of a wooden barrel to remove a damaged layer to separate the grit and/or slag from other residues.