An arcuate mounting bracket fabrication system includes a powered roller conveyor for receiving blanks to be formed into arcuate connection brackets. A roll form assembly received the blanks and includes a plurality of roll forming dies for incrementally bending portions of blanks to form straight flanges terminating in lips. An entry assembly carried by the powered roller conveyor positions the blanks entering the roll form assembly. An arcuate flange forming apparatus for forming arcuate flanges in the roll formed blank receives roll formed blanks from a transfer mechanism.

A lifting apparatus of the present invention includes: a ball screw; a frame configured to support bearings for the ball screw; an electric motor supported by the frame and having an output shaft being rotatable; and a rotational force transferring mechanism configured to transfer a rotational force of the output shaft as a rotational force of a threaded shaft of the ball screw. A first moving body providing a first sliding surface inclined at a predetermined angle with respect to a plane including a direction of an axis is fixed to a nut of the ball screw. A second moving body is arranged to be movable linearly in a direction perpendicular to the direction of the axis with respect to the frame, has a second sliding surface configured to be slidably movable with respect to the first sliding surface, and is caused to move linearly in the direction perpendicular to the direction of the axis by a slidably movement between the first sliding surface and the second sliding surface when the nut and the first moving body moves linearly in the direction of the axis. The threaded shaft extends through the first moving body in the direction of the axis, and the pair of bearings is arranged on both sides of the first moving body.

There is provided a rolling mill that includes a plurality of rolls, in which any one roll among respective rolls is adopted as a reference roll, including a load detection apparatus, detects a vertical roll load at a rolling support point position; a pressing apparatus pressing the roll chocks in the rolling direction; a driving apparatus moving the roll chocks in the rolling direction; and a position control unit which fixes a rolling direction position of roll chocks of the reference roll, and drives the driving apparatus to control positions in the rolling direction of the roll chocks of the rolls other than the reference roll.

The invention relates to a steel-plate descaling device, including several steel-plate surface descalers and several steel-plate side-surface descalers disposed along the direction of a flow line as well as a trolley rail disposed in parallel to one side of the flow line. At least one roller-changing vehicle slides back and forth on the rail. The roller-changing vehicle is provided with a roller-changing mechanism. When the roller-changing vehicle slides to a front side of the steel-plate surface descaler, the roller-changing mechanism extends into the inner part of the steel-plate surface descaler to change the roller. The oxide scale of the steel-plate surface is removed physically, having low pollution and high descaling efficiency without a blind spot, and simultaneously having a high degree of automation in replacing the descaling roller through the roller-changing vehicle, saving both time and effort.

A large-width cathode roller for producing high-strength ultra-thin copper foil includes titanium side plates and a titanium cylinder sealed by the titanium side plates, and a cathode roller core penetrated through the titanium side plates. Steel-copper explosive clad cylinders and a steel support plate are disposed in/on the side plate, inner ring surfaces of the side plates and the copper plates are connected to a copper sleeve around the cathode roller core, outer ring surfaces of the copper plates and the steel support plates are connected to a copper cylinder, inner ring surfaces of the steel support plates are connected to the cathode roller core; and multiple electrically conductive support rings on the copper cylinder are connected to the copper plates on two sides through the electrically conductive copper bars to form a conducting loop to improve the distribution uniformity of the current on the surface of the cathode roller.

A two-axis roll forming apparatus for forming sheet metal includes a first carriage and a second carriage each reciprocally movable parallel to a longitudinal axis. The second carriage is spaced apart from the first carriage and separated therefrom by a gap. A first bending station is carried by the first carriage and reciprocal moveable parallel to a transverse axis which is perpendicular to the longitudinal axis. A second bending station is carried by the second carriage and reciprocal moveable parallel to the transverse axis which is perpendicular to the longitudinal axis.

A method for piercing a titanium alloy solid billet, the method including: 1) providing a Mannesmann rotary piercer including two rollers, a feed channel, a plurality of centering devices, and a mandril including a plug; fixing the mandril using the plurality of centering devices, where the Mannesmann rotary piercer has a feeding angle of 6-18°, a cross angle of 15°, and a roll speed of 30-90 rpm; 2) heating a titanium alloy solid billet to 930-990° C.; 3) transferring the titanium alloy solid billet to the feed channel of the Mannesmann rotary piercer; and 4) aligning the titanium alloy solid billet with the plug of the mandril, and driving the titanium alloy solid billet to pass through the plug of the mandril, thereby piercing the titanium alloy solid billet and yielding a titanium alloy tube.

The invention relates to an apparatus (1) for producing a peripheral groove (101) in an end portion (103) of a metal tube (100), in particular a metal tube (100) which is to be coated on the inside, the groove (101) being set up for receiving tube connectors, having a first, rotationally driven roller (3), a second, freely rotating roller (5), the first roller (3) having a roughened or structured surface (6) relative to the second roller (5), a pressing device (15) for producing a relative movement between the first and second roller (3, 5), between a first and a second position, the rollers (3, 5) assuming a first spacing from one another in the first position, which first spacing permits an introduction of a wall of the tube between the rollers (3, 5), and assuming a smaller, second spacing from one another in the second position, which second spacing is smaller than a material thickness (M) of the wall of the tube.

It is proposed according to the invention that the first, driven roller (3) is set up to grip the tube from the outside in the second position and to rotate it, with the result that a peripheral groove (101) is pressed into the tube in the second position when the first roller (3) is driven.

A method for piercing a titanium alloy solid billet, the method including: 1) providing a Mannesmann rotary piercer including two rollers, a feed channel, a plurality of centering devices, and a mandril including a plug; fixing the mandril using the plurality of centering devices, where the Mannesmann rotary piercer has a feeding angle of 6-18°, a cross angle of 15°, and a roll speed of 30-90 rpm; 2) heating a titanium alloy solid billet to 930-990° C.; 3) transferring the titanium alloy solid billet to the feed channel of the Mannesmann rotary piercer; and 4) aligning the titanium alloy solid billet with the plug of the mandril, and driving the titanium alloy solid billet to pass through the plug of the mandril, thereby piercing the titanium alloy solid billet and yielding a titanium alloy tube.

An adjusting cylinder quick-action adjustment for a long, rapid stroke movement in an edging stand which includes an edger upright, adjustment system, balancing system and edging roll sets, comprises a piston which acts via edging roll chocks of at least one edging roll for adjustment against the rolling stock. The adjustment of the edging roll can be actuated on each side hydraulically by a fluid. The adjusting cylinder quick-action adjustment is mounted in the edger upright and exerts the force required for the edging process. The adjusting cylinder quick-action adjustment includes on each side of the edging upright at least one double cylinder which has two cylinders coupled to one another and is separately controllable and configured for rapid adjustment and for control adjustment of the edging roll.