Alloy molten steel constant-pressure injection device and constant-pressure injection method
A spray device, alloy steel technology, applied in metal processing equipment, casting melt containers, manufacturing tools, etc., can solve the problems of inconsistent size, inability to ensure constant nozzle pressure, and achieve the effect of improving the pass rate
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[0028] Example one
[0029] Such as figure 1 As shown, the present invention provides a constant pressure injection device for alloy steel liquid. The device includes a regulating actuator 1, a precision pressure regulating valve 2, a microcomputer control system 3, a ladle 4, a pressure sensor 5, a gas pipe 6, and a nozzle Port 7, air source 8, signal line 9 and pressure gauge 11; characterized in that: a pressure sensor 5 is installed at the nozzle port 7 at the bottom of the ladle 4, and the pressure sensor 5 is connected to the microcomputer through the signal line 9 in turn The control system 3 and the regulating actuator 1; the upper part of the ladle 4 is hermetically connected to the gas pipe 6, which is connected to the gas source 8 through the pressure gauge 11 and the precision pressure regulating valve 2 in sequence; the precision pressure regulation The valve 2 is connected with the adjusting actuator 1; the ladle 4 is set in the intermediate frequency induction hea...
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