An apparatus for treating a surface of an object is disclosed, including a carrier configured to transport the object through a treatment zone and an array of nozzle devices, each nozzle device positioned to deliver a cavitating jet into the treatment zone. The apparatus further includes a fluid source, a pump connected to the fluid source, and a hose configured to carry fluid under high pressure generated by the pump from the fluid source to the array of nozzle devices.

First guide pipes are disposed on both sides of blasting areas, and second guide pipes are disposed on both sides of the blasting area. A wire rod W is inserted through the first guide pipes and the second guide pipes, penetrating in a conveying direction of the wire rod W. The diameter of each of first insertion holes of the first guide pipes and second insertion holes of the second guide pipes is gradually reduced toward the downstream side in the conveying direction. The second guide pipe is installed in a state in which the downstream-side end portion in the conveying direction is inserted into the first insertion hole from the inlet side of the first guide pipe.

A rotary wheel cleaning device is composed of a feeding station, a cleaning station, a blowing station and a discharging station. The feeding station completes positioning, jacking and clamping of a wheel; the cleaning station completes cleaning of the wheel; the blowing station completes blowing of the wheel; and the discharging station transfers the cleaned wheel. The device can continuously perform the operations of feeding, cleaning, blowing and discharging of a wheel to be cleaned by rotating the wheel into different angular position on a station turntable, thereby automatic continuous production is achieved.

First guide pipes are disposed on both sides of blasting areas, and second guide pipes are disposed on both sides of the blasting area. A wire rod W is inserted through the first guide pipes and the second guide pipes, penetrating in a conveying direction of the wire rod W. The diameter of each of first insertion holes of the first guide pipes and second insertion holes of the second guide pipes is gradually reduced toward the downstream side in the conveying direction. The second guide pipe is installed in a state in which the downstream-side end portion in the conveying direction is inserted into the first insertion hole from the inlet side of the first guide pipe.

A rotary wheel cleaning device comprises a feeding station, a cleaning station, a blowing station and a discharging station. The feeding station completes positioning, jacking and clamping of a wheel; the cleaning station completes cleaning of the wheel; the blowing station completes blowing of the wheel; and the discharging station transfers the cleaned wheel. The device can be used for automatic continuous production, in which the wheel can horizontally rotate and turn over during cleaning, so that the wheel is cleaned in multiple angles and multiple directions; and by skillful layout, feeding, cleaning, blowing and discharging of the wheel are orderly engaged, so that the cleaning process is coherent and cyclic, the period is short and the efficiency is high.

The purpose of the present invention is to provide a shot peening apparatus for which size increase is limited by projecting a shot material evenly on a workpiece using a single projector. The present invention provides a shot peening apparatus equipped with a workpiece-conveying mechanism for conveying a workpiece and a projector for projecting a shot material at the workpiece. The workpiece-conveying mechanism is equipped with: a pair of rollers, which extend in the workpiece conveyance direction, on which the workpieces are loaded, and which are rotated centered on the longitudinal axis line; an endless chain; and conveyance members for pressing and conveying workpieces in the conveyance direction. The projector is a centrifugal projector and is equipped with: a control cage into which the shot material is supplied and in which a first opening and a second opening are formed; and a bladed wheel, which is provided with multiple blades having a backward-sloping section that slopes toward the back in the rotation direction and which rotates centered on the central axis line of the control cage. The first opening and the second opening of the control cage are separated from each other in the circumferential direction of the control cage and are disposed offset from each other in the direction of the central axis line of the control cage.

Cutting method of a layer(S) of ceramic powder material having a modulus of rupture that is smaller than about 10 N/mm.sup.2, comprising: a step of moving the layer(S) of ceramic powder material along a given path (P) in a moving direction (A) through a cutting station; and a cutting step, during which at least a first water-jet cutting device cuts said layer(S) of ceramic powder material along a first direction (D1) that is transverse to the moving direction (A), so as to cut said layer(S) of ceramic powder material and obtain a plurality of articles of ceramic powder material (MCP).

An apparatus for treating a surface of an object is disclosed, including a carrier configured to transport the object through a treatment zone and an array of nozzle devices, each nozzle device positioned to deliver a cavitating jet into the treatment zone. The apparatus further includes a fluid source, a pump connected to the fluid source, and a hose configured to carry fluid under high pressure generated by the pump from the fluid source to the array of nozzle devices.