A high-speed hydraulic forging press is disclosed. The high-speed hydraulic forging press includes a forging hammer, a movable beam, a main hydraulic cylinder, a single-rod elevation hydraulic cylinder, a plurality of main hydraulic pumps, a high-pressure energy accumulator, an intermediate-pressure energy accumulator, an oil tank, a programmable logic controller and a valve-regulation system. During a rolling process, when a rolling resistance applied to the forging hammer increases to cause pressure in the main hydraulic cylinder to reach a predetermined value, the programmable logic controller controls the valve-regulation system so that the high-pressure energy accumulator stops supplying the hydraulic oil to the main hydraulic cylinder, and that the hydraulic oil in the main hydraulic cylinder is supplied by at least one of the plurality of main hydraulic pumps. The high-speed hydraulic forging press exhibits remarkable advantages including a reasonable resource allocation, a simple structure, low equipment investment, and high energy utilization.

Apparatuses for pressing and heating a material and associated methods are disclosed herein. An apparatus of the present technology includes a housing, a pressure component positioned in the housing, a linkage component coupled to the pressure component, a first heating component coupled to the linkage component, and a second heating component positioned adjacent to the first heating component. The linkage component is movable between a first position and a second position. When the linkage component is at the first position, the linkage component is positioned at a first level. When the linkage component is at the second position, the linkage component is positioned at a second level and the linkage component holds the first heating component stationary relative to the second heating component.

Apparatuses for pressing and heating a material and associated methods are disclosed herein. An apparatus of the present technology includes a housing, a pressure component positioned in the housing, a linkage component coupled to the pressure component, a first heating component coupled to the linkage component, and a second heating component positioned adjacent to the first heating component. The linkage component is movable between a first position and a second position. When the linkage component is at the first position, the linkage component is positioned at a first level. When the linkage component is at the second position, the linkage component is positioned at a second level and the linkage component holds the first heating component stationary relative to the second heating component.

In a hydraulic drive of a tool piston in a cylinder first and second flat contact areas each are contiguous, when moving into and in the open position of the valve member between the detent element and the valve member, wherein a pressure-limiting valve that can be loaded with the pressure in the cylinder from a closed position to an open position and a detent element loaded by a spring in the locking direction to positively hold a neck of a valve member of the pressure-limiting valve are arranged in the open position, wherein the detent element at least via the tool piston at its return to a released position can be moved and, when moving the valve member to the open position of the pressure-limiting valve, non-positively acts on the valve member.

In a hydraulic drive of a tool piston in a cylinder first and second flat contact areas each are contiguous, when moving into and in the open position of the valve member between the detent element and the valve member, wherein a pressure-limiting valve that can be loaded with the pressure in the cylinder from a closed position to an open position and a detent element loaded by a spring in the locking direction to positively hold a neck of a valve member of the pressure-limiting valve are arranged in the open position, wherein the detent element at least via the tool piston at its return to a released position can be moved and, when moving the valve member to the open position of the pressure-limiting valve, non-positively acts on the valve member.

A lamination system (110) may be provided for attaching together display layers (45,46) for an electronic device display. The system may include one or more pressure-sensing lamination stages (124, 126) for temporarily mounting the display layers during lamination operations. A pressure-sensing lamination stage (124) may include one or more pressure sensors (130) configured to sense pressures that are applied to the display layers during lamination operations. The pressure-sensing lamination stages may include a fixed mounting stage (126) and a movable mounting stage (124). The movable mounting stage may be moved so that a first set of display layers is pressed against a second set of display layers to attach the first and second sets of display layers. The pressure with which the first set of display layers (45;46) is pressed against the second set of display layers may be adjusted based on pressure data gathered using the pressure sensors (130).

A lamination system (110) may be provided for attaching together display layers (45,46) for an electronic device display. The system may include one or more pressure-sensing lamination stages (124, 126) for temporarily mounting the display layers during lamination operations. A pressure-sensing lamination stage (124) may include one or more pressure sensors (130) configured to sense pressures that are applied to the display layers during lamination operations. The pressure-sensing lamination stages may include a fixed mounting stage (126) and a movable mounting stage (124). The movable mounting stage may be moved so that a first set of display layers is pressed against a second set of display layers to attach the first and second sets of display layers. The pressure with which the first set of display layers (45;46) is pressed against the second set of display layers may be adjusted based on pressure data gathered using the pressure sensors (130).

In a method and an apparatus for reducing the cutting impact in a hydraulically-driven precision blanking press, the force necessary to reduce the cutting impact as a counterforce is generated directly in the pressure chamber of the drive piston such that the counterforce acts directly on the cutting punch and so that the design of the press can be simplified, costs can be reduced, no additional external hydraulic-mechanical means for reducing the cutting impact are needed, and so that the loads on the press and the die can be reduced.

The pump discharge volume of a bi-directional piston pump is set to a reference pump discharge volume Qa in condition where the actuation state of lift cylinders is a no-load state, and is set to a small-discharge pump discharge volume Qb smaller than the reference pump discharge volume Qa in condition where the actuation state of the lift cylinders is a high-load state. Qb.Math.Pb which is the product of the pump discharge volume Qb and a pump discharge pressure Pb of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the high-load state is set to be equal to or less than or approximately equal to a Qa.Math.Pa which is the product of the pump discharge volume Qa and a pump discharge pressure Pa of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the no-load state.

The pump discharge volume of a bi-directional piston pump is set to a reference pump discharge volume Qa in condition where the actuation state of lift cylinders is a no-load state, and is set to a small-discharge pump discharge volume Qb smaller than the reference pump discharge volume Qa in condition where the actuation state of the lift cylinders is a high-load state. Qb.Math.Pb which is the product of the pump discharge volume Qb and a pump discharge pressure Pb of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the high-load state is set to be equal to or less than or approximately equal to a Qa.Math.Pa which is the product of the pump discharge volume Qa and a pump discharge pressure Pa of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the no-load state.