The present disclosure provides for fin straightening tools for a heat radiator configured with fins forming elongated air passages. The fin straightening tool comprises an elongated rod member having a proximal end opposite a distal insertion end and a body comprising a cross-section adapted to geometrically align closely with a geometric cross-sectional shape of an air flow passage formed between fins of a radiator. The body forms two opposing planar surfaces configured as flat to slidingly engage opposing external flat surfaces of radiator fins to structurally mate against the external flat surfaces. The distal insertion end of the rod member is angled and beveled. The present disclosure further provides methods of using the fin straightening tools to straighten bent radiator fins, including to form a scaffolding support structure, to straighten a damaged area of a radiator.

The present disclosure provides for fin straightening tools for a heat radiator configured with fins forming elongated air passages. The fin straightening tool comprises an elongated rod member having a proximal end opposite a distal insertion end and a body comprising a cross-section adapted to geometrically align closely with a geometric cross-sectional shape of an air flow passage formed between fins of a radiator. The body forms two opposing planar surfaces configured as flat to slidingly engage opposing external flat surfaces of radiator fins to structurally mate against the external flat surfaces. The distal insertion end of the rod member is angled and beveled. The present disclosure further provides methods of using the fin straightening tools to straighten bent radiator fins, including to form a scaffolding support structure, to straighten a damaged area of a radiator.

The disclosure discloses an auxiliary frame shape correcting device which comprises a machine frame; support plates are arranged on the lower portion of the machine frame; servo motors I are fixed on the support plates; the output ends of the servo motors I are provided with pressure heads I; the front portion, the rear portion, the left portion and the right portion of the machine frame are provided with pressure heads correspondingly, and thus an auxiliary frame can be subjected to shape correcting spatially up and down, left and right, and front and back.

A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.

A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.

The present disclosure pertains to a tool and repair method that facilitates restoring an exhaust pipe that has been become deformed as the result of a rear end collision which both restores to the pipes original shape and re-aligns the pipes to their original configuration, so the exhaust pipes can be re-attached to the pipe hanger without the need to replace the exhaust system pipes. The tool is comprised of a hydraulic piston cylinder, a stationary rectangular steel head attached to the body of the hydraulic piston, and a movable flat plate, located inside of the rectangular steel head and connected to the piston shaft of the hydraulic piston cylinder. To use the tool the deformed section of pipe is placed within the head of steel head of the compressive pipe repair apparatus when the cylinder piston shaft and movable flat plate are retracted. The hydraulic piston cylinder is activated by the mechanic and the cylinder piston shaft and movable flat plate will extend upward and contact the bottom of the deformed section is exhaust pipe, exerting compressive stresses against the exhaust pipe until the pipe has been reformed to match the original shape.

The present disclosure pertains to a tool and repair method that facilitates restoring an exhaust pipe that has been become deformed as the result of a rear end collision which both restores to the pipes original shape and re-aligns the pipes to their original configuration, so the exhaust pipes can be re-attached to the pipe hanger without the need to replace the exhaust system pipes. The tool is comprised of a hydraulic piston cylinder, a stationary rectangular steel head attached to the body of the hydraulic piston, and a movable flat plate, located inside of the rectangular steel head and connected to the piston shaft of the hydraulic piston cylinder. To use the tool the deformed section of pipe is placed within the head of steel head of the compressive pipe repair apparatus when the cylinder piston shaft and movable flat plate are retracted. The hydraulic piston cylinder is activated by the mechanic and the cylinder piston shaft and movable flat plate will extend upward and contact the bottom of the deformed section is exhaust pipe, exerting compressive stresses against the exhaust pipe until the pipe has been reformed to match the original shape.

A device for performing strengthening treatment on a tooth root of a gear, a punch driver, a tooth root strengthening treatment device and a punch moving device are provided according to the present application. The device for performing the strengthening treatment on the tooth root of the gear according to the present application can impact a tooth root of a gear to be processed continuously under the action of the punch driver, and has a high efficiency while having a stable effect. The device in the present application is not limited by a complicated geometrical shape and a narrow space of the tooth root. Thus, it may be known that the devices according to the present application can address the issue of a low efficiency and poor effect in a current shot peening technique during performing the strengthening treatment on the tooth root.

A device for performing strengthening treatment on a tooth root of a gear, a punch driver, a tooth root strengthening treatment device and a punch moving device are provided according to the present application. The device for performing the strengthening treatment on the tooth root of the gear according to the present application can impact a tooth root of a gear to be processed continuously under the action of the punch driver, and has a high efficiency while having a stable effect. The device in the present application is not limited by a complicated geometrical shape and a narrow space of the tooth root. Thus, it may be known that the devices according to the present application can address the issue of a low efficiency and poor effect in a current shot peening technique during performing the strengthening treatment on the tooth root.

Gripper for gripping a thin-walled aerosol can blank, having a base body which is made of a solid material and which has a bore passing through it along a central axis, an inner surface of the bore being provided with a circumferential radial groove extending outwards in the radial direction, and having a rubber-impregnated workpiece which is received in the radial groove, which has a radially inner gripping surface and a radially outer working surface, the working surface, together with mutually opposite axial surfaces of the radial groove and a radially outer circumferential surface of the radial groove, delimiting a fluid working space, wherein an integrally formed circumferential sealing profile is formed on the gripping ring adjacent to the working surface.