SU113139A1 - Device for casting non-ferrous alloys under pressure in vacuum - Google Patents

Description

For CREWING parts from non-ferrous doped pressure alloys, horizontal and vertical types of devices with a cold compression chamber are known.

In the described device for casting parts from non-ferrous alloys under pressure, in contrast to the known devices, a telescopic type vacuum chamber is used to form a vacuum in the mold cavity and automatically dispense the metal. .

The drawing shows the proposed device.

The device consists of a telescopic vacuum chamber / mounted on the movable plate 2, an automatic valve 3, a tank 4, a heating furnace 5 and a vacuum pump. By turning the knob S, the hydraulic cylinders 6 are turned on and the movement of the rod 7 is transmitted to the telescopic chamber. After the sealing ring 9 is in contact with the plate 10, the valve 3 opens automatically, connected by pipelines}} J2 to the tank 4, from which the air is evacuated. The time relay automatically turns on the mechanism for closing the mold, and the cylinder 13 moves the punch J4 to the right until it comes in contact with the seat 15. From the channel 16 into the compression chamber 17 enters the required liquid: liquid metal, after which the time relay switches the movement of the punch 14 to the left to press in the metal . When the punch 14 moves to the left, the liquid metal in channel 16, in contact with the atmosphere, decreases to the level of the metal in the crucible. After the metal has been pressed in and the casting time required in the mold, the time relay switches on the mechanism for opening it, and the machine cycle is repeated.

Subject invention

1. A device for casting parts from non-ferrous alloys under pressure in vacuum, characterized in that, in order to form a vacuum in the mold cavity in the process of pressing it with metal, it uses a telescopic-type hermetic chamber, inside which a vacuum is created before closing it Press forms.