Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.

The steel wire surface treatment method of the present invention is a method for continuously treating the surface of a steel wire and includes: a descaling step P2 in which scale adhering to the surface of a steel wire is removed by subjecting the surface of the steel wire to wet blasting; a coating film treatment step P5 in which a coating film is formed on the surface of the steel wire after completion of the descaling step P2; and a water amount controlling step P3 in which the water amount on the surface of the steel wire immediately before performing the coating film treatment step P5 is adjusted to a prescribed water amount.

A fluid jet cutting device (10) for sectioning materials is provided. The device includes a compact and portable body (12) having an equipment chamber (14) accessible through a first panel (20), a working chamber (16) accessible through a second panel (22) and a receptacle (18) in communication with the working chamber. A pump assembly (26) and motor (28) are removably positioned on a base (32) in the equipment chamber. A guide assembly (36) is positioned in the working chamber and a cutting head (38) having a nozzle (50) is movably coupled to the guide assembly for movement along three axes. A drive assembly (52) moves the cutting head along the guide assembly. A clamp (56) for holding a work piece includes a first face (58) and a second face (60) movable relative to the first face so as to secure regular, irregular or complex shaped work pieces. A basket (66) is positioned in the receptacle below the clamp and the device may be controlled by way of a touch screen user interface (72).

A waterjet system is provided, including a pump configured to pump fluid, an electric motor configured to drive the pump, a hopper configured to store abrasive, and a mixing chamber configured to mix abrasive from the hopper and the fluid from the pump to produce a slurry. A cutting bed is configured to receive a workpiece to be cut. A cutting head is configured to expel the slurry through the outlet nozzle as a high-velocity jet into the cutting bed.

The use of abrasive entrainment waterjet technology to cut objects located at the bottom of a body of water. Abrasive is conducted to an abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the differential pressure between the cutting head and reservoir of abrasive material and maintains the pressure at the abrasive reservoir greater than the pressure hydrostatic pressure at the cutting head.

The use of abrasive entrainment waterjet technology to cut objects located at the bottom of a body of water. Abrasive is conducted to an abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the differential pressure between the cutting head and reservoir of abrasive material and maintains the pressure at the abrasive reservoir greater than the pressure hydrostatic pressure at the cutting head.

A laser alignment system may comprise a machine, a laser source attached to the machine, a photodiode able to communicate with the laser source, and a receiver including the photodiode, wherein a signal is generated upon communication between the photodiode and the laser source.

A laser alignment system may comprise a machine, a laser source attached to the machine, a photodiode able to communicate with the laser source, and a receiver including the photodiode, wherein a signal is generated upon communication between the photodiode and the laser source.

The use of abrasive entrainment waterjet technology to cut objects located at the bottom of a body of water. Abrasive is conducted to an abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the differential pressure between the cutting head and reservoir of abrasive material and maintains the pressure at the abrasive reservoir greater than the pressure hydrostatic pressure at the cutting head.

The use of abrasive entrainment waterjet technology to cut objects located at the bottom of a body of water. Abrasive is conducted to an abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the differential pressure between the cutting head and reservoir of abrasive material and maintains the pressure at the abrasive reservoir greater than the pressure hydrostatic pressure at the cutting head.