Abstract: A pressure control system and means for pressure pouring of cast steel wheels, including a control system and a main gas circuit. The control system includes an upper computer, a PLC unit, a sensor, an operation box and an electronic valve. The upper computer is connected via a signal line with the PLC unit which is connected with each of the sensor, the operation box and the electronic valve. The sensor includes an inside-tank pressure sensor and an inside-mold liquid level detecting sensor. The electronic valve includes a quick breaking valve and a servo valve. The main gas circuit includes a gas pressure bag, a ball valve, a pressure reducing valve, a solenoid valve, and a pressure tank. The gas pressure bag, the ball valve, the pressure reducing valve, the solenoid valve and the pressure tank are connected with one another via gas tubes.

Abstract: A gas pressure tank structure including: a tank wall, a compression oil cylinder, a locking ring, a spring cylinder, a locating pin mounting hole, a dowel pinhole, a refractory brick, a guide mechanism, a sealing structure, an arc joint, an arc shaped tank bottom, a steel ladle stand, a tank cover, and a reinforcing board.

Abstract: A locking mechanism for a tank body and a tank cover of a pressure tank. The locking mechanism includes: a tank body, a tank chamber, a tank cover, a hydraulic cylinder, a locking ring, a spring cylinder, a fixing supporting mechanism, a fixing plate, a barb, a notch, and a pulling cylinder.

Abstract: A locking mechanism for a tank body and a tank cover of a pressure tank. The locking mechanism includes: a tank body, a tank chamber, a tank cover, a hydraulic cylinder, a locking ring, a spring cylinder, a fixing supporting mechanism, a fixing plate, a barb, a notch, and a pulling cylinder.

Abstract: A pressure control system and means for pressure pouring of cast steel wheels, comprising a control system and a main gas circuit. The control system comprises an upper computer, a PLC unit, a sensor, an operation box and an electronic valve. The upper computer is connected via a signal line with the PLC unit which is connected with each of the sensor, the operation box and the electronic valve. The sensor comprises an inside-tank pressure sensor and an inside-mold liquid level detecting sensor. The electronic valve comprises a quick breaking valve and a servo valve. The main gas circuit comprises a gas pressure bag, a ball valve, a pressure reducing valve, a solenoid valve, and a pressure tank. The gas pressure bag, the ball valve, the pressure reducing valve, the solenoid valve and the pressure tank are connected with one another via gas tubes.

Abstract: A gas pressure tank structure including: a tank wall, a compression oil cylinder, a locking ring, a spring cylinder, a locating pin mounting hole, a dowel pinhole, a refractory brick, a guide mechanism, a sealing structure, an arc joint, an arc shaped tank bottom, a steel ladle stand, a tank cover, and a reinforcing board.