8results about "Drop hammers" patented technology

The utility model relates to the technical field of high-pressure gas tanks, and provides a water level pressure control device for a high-pressure gas tank group. Comprising a high-pressure gas tank group, a high-pressure water level pipe, a buoy, a circuit controller and a group of magnetic reed switches for controlling the water level in the high-pressure water level pipe to float in a water level range corresponding to a high-pressure mode or a water level range corresponding to a low-pressure mode, the high-pressure water level pipe is communicated with the interior of the high-pressure gas tank group, the magnetic reed switches are arranged at different height positions of the outer wall of the high-pressure water level pipe and connected with the input end of the circuit controller, and the control signal output end of the circuit controller is connected with the control signal input end of the high-pressure pump. The buoy is magnetic, is installed in the high-pressure water level pipe, and can move up and down along with the water level and trigger the magnetic reed switch at the corresponding height. The pressure range of the high-pressure gas tank group can be efficiently and rapidly adjusted, and pressure dynamic control in different forging modes can be achieved.

The subject of the invention is a method of drop forging a magnesium wheel forging for light vehicles and a magnesium wheel forging produced by this method, characterised in that the upper drop forging die (1) having a working impression (la) in the central part and the lower drop forging die (3) having a working impression (3a) in the central part in the form of a lump whose outline is similar to a circle with circular recesses in the centre, is heated in a furnace to 260 °C to 300 °C, after which the heated upper drop forging die (1) is mounted to the ram of the hammer forging by means of a dovetail (lb), and the heated lower drop forging die (3) is mounted by means of a dovetail (3b) to the anvil block of the drop forging hammer, and then the forging preform (2a) in the form of a forging preform cast into metal moulds of magnesium alloy AZ31 (Mg-3Al-lZn) is heated in a furnace to a temperature of 350 °C to 440000 °C, for a period of 40 to 45 min, after which the heated preform (2a) is placed in the working impression (3a) in the lower forging die (3), then the upper forging die (1) is driven in a downward progressive motion with a velocity (VI) of 7 m / s towards the lower drop forging die (3) and the upper drop forging die (1) is impacted with a maximum impact energy in the range of 9, 14 to 11.17 kJ is crushed with the working impression (2a) of the upper drop forging die (1) and the working impression (3a) of the lower drop forging die (3), forming the wheel preform (2b) with a deformation ranging from 6.41 to 10.6. The object of the invention is also a magnesium wheel forging for light vehicles produced by the aforementioned method.

The object of the invention is a method for plastic forming on a hydraulic press of a wheel forgings made of AZ91 magnesium alloy for light vehicles, in particular from a forging preform into metal moulds, and a wheel forgings formed by this method characterised in that, the upper drop forging die tool (1) with a finishing impression (la) in the centre and a lower drop forging die tool (3) with a finishing impression (3a) in the form of a lump whose outline resembles a circle with circular recesses in the centre, is heated in a furnace to 260°C to 300 °C, then the heated upper drop forging die tool (1) and the heated lower drop forging die tool (3) are assembled in the workspace of the press, and then the forging impression (2a) cast into metal moulds of the AZ91 magnesium alloy (Mg- 9Al-lZn) is heated in an oven to 300 °C to 400°C for a period of 30 to 35 min, after which the heated forging blank (2a) cast into metal moulds is placed and centred in the finishing blank (3a) of the bottom drop forging die tool (3), after which the top drop forging die tool (1) is driven downwards on a hydraulic press at a speed (VI) of 20 mm / s towards the lower drop forging die tool (3) and the forging preform (2a) cast into metal moulds is compressed by the finishing impression (la) of the upper drop forging die tool (1) and the finishing impression (3a) of the lower drop forging die tool (3) with a forging force ranging from 1689, 9 kN to 2044.6 kN, a wheel forging (2b) is formed with a deformation in the range of 7.72 to 11. The object of the invention is also a wheel forging produced by the method as specified above.

The subject of the invention is a method of drop forging on a hammer of a magnesium wheel forgings from a die casting for metal forms and a magnesium wheel forgings shaped in this way, characterized in that the upper drop forging tool (1) having a finishing impression (1a) in the middle part and the lower drop forging tool (3) having a finishing impression (3a) in the central part, and the finishing impression (1a) and (3a) are in the form of a solid whose outline is similar to a wheel with circular valleys in the middle, is heated in a furnace to a temperature from 260 °C to 300 °C, after which the heated upper drop forging tool (1) is mounted to the forging hammer with a dovetail (1b), and the heated lower drop forging tool (3) is mounted to the die hammer with a dovetail (3b), and then the blank (2a) cast to the metal AZ91 (Mg-9AlZn-1) allocks are heated at a temperature from 350 °C to 400 °C, in the period from 30 minutes to 35 minutes, after which the heated blank (2a) cast into metal moulds is placed and centered in the finishing impression (3a) of the lower drop forging tool (3), then the upper drop forging tool (1) is set in a progressive movement down with a velocity (V1) of 6 m / s towards the lower drop forging tool (3) and the impact of the upper drop forging tool (1) with a maximum impact energy in the range of 6.11 to 7.51 kJ, the forging preform (2a) cast into metal moulds is compacted with the finishing impression (1a) of the upper drop forging tool (1) and the finishing impression (3a) of the lower drop forging tool (3), shaping the forging of the wheel (2b) with a deformation in the range from 4.42 to 11.1. The subject matter of the invention is also a wheel forging produced by the method set forth above.

To provide a method for applying a coating product by use of a print head.SOLUTION: The method is configured from continuous steps comprising each step from a) to f) that are executed by a computer, that is, a step a) at which a strip on a surface to be coated is defined; a step b) at which an orbit concerning the strip on the surface is defined; a step c) at which the strip on the surface is eliminated from an information sheet for modeling the surface; a step d) at which operation is started again in the step a) until an area of the modeled surface becomes zero; a step e) at which an operation program for each print head and a nozzle is regulated for each route; and a step f) at which on the basis of the operation program regulated in the step e), each print head nozzle is operated for different orbits according to orientation of the print head at each attention point, thereby applying a coating product.SELECTED DRAWING: Figure 11

The subject of the invention is a method of manufacturing a magnesium alloy wheel forging on a hydraulic press, characterized in that the upper die (1) having a working impression in the middle part (la) and the lower die (3) having a working impression (3a) in the form of a lump whose outline is similar to a circle with circular recesses in the middle, is heated in a furnace to a temperature of 260° C to 300 o C, after which a heated upper die (1) and a lower die (3) are mounted in the working space of a hydraulic press with a pressure of 1600 kN to 2242 kN, and then a forging preform (2a) in the form of a forging cast into metal forms of a magnesium alloy AZ31 (Mg-3Al-lZn) is heated in the furnace to a temperature of 350° C to 400° C, for a period of 40 to 45 minutes, after which the heated forging preform (2a) is placed in the working impression (3a) of the lower die (3), after which it is pressed with a hydraulic press on the upper die (1), causing the upper die (1) to move downwards with a velocity of 20 mm / s to 40 mm / s in the direction of the lower die (3), and the forging preform (2a) is crushed with the working impression (la) of the upper die (1) and the working impression (3a) of the lower die (3), shaping the forging (2b) of the wheels with a deformation in the range of 6.43 to 12.9. The object of the invention is also a wheel forging produced by the method as specified above.

This invention relates to the field of gear composite forging technology, specifically a gear composite forging forming equipment. The equipment includes a base with a hydraulic cylinder fixedly connected to it, and a composite forging structure connected to the base. The composite forging structure includes a forging table fixedly mounted on the base, a through slot in the center of the forging table, a blank placement slot on the forging table, and a lower die body assembled on the forging table. An arc-shaped linkage frame is fixedly connected to the moving end of the hydraulic cylinder, and an upper die body and a forging hammer are respectively assembled at the lower ends of the arc-shaped linkage frame. A three-position moving structure is also mounted on the base. This invention utilizes the combination of the composite forging structure and the three-position moving structure to perform composite forging processing on the blank, automating the material unloading operation and improving processing efficiency.