& nbsp; J454A 400Kg low pressure casting machine is a general equipment for aluminum alloy low pressure casting, which can be widely used in the production of aluminum alloy castings in automobile, motorcycle, instrument, textile machinery and aviation space industry& nbsp; & nbsp; The machine is composed of a host, hydraulic system, melt pool insulation furnace, liquid level pressurization device, electrical control system, and mold cooling system& nbsp;Performance characteristics: The sturdy four pillars connect the static mold base plate and the shaped cylinder seat, forming a rigid frame structure with good rigidity; The clamping mechanism is guided by four pillars and adopts a fast and slow clamping method to improve work efficiency and reduce impact on the mold; ● The sealing guide device should be far away from the mold to avoid the influence of mold temperature; The machine is equipped with multiple mold cooling circuits, with optional cooling media and automatic control of cooling time; Adopting a molten pool type insulation furnace. Radiation heating, PID control. Rated temperature range: 680-750 ℃, temperature control accuracy:± 5℃； The rigid connection between the insulation furnace and the static template shortens the distance between the aluminum liquid level in the insulation furnace and the mold, reducing the process requirements of the casting; The electrical control system adopts a monitoring method of upper and lower computers. Using an imported PLC as the lower control machine, complete the sequential operation of the main machine, liquid level pressurization, and mold cooling control of the low-pressure casting machine. Using an imported human-machine interface or industrial control computer as the upper computer, complete the parameter setting and modification of the low-pressure casting machine, monitor and display pressure data and curves, as well as machine working status and fault alarm information. The monitoring method of the upper and lower computers ensures that even in the event of a malfunction in the upper computer, the lower control system can still automatically operate according to the preset process parameters, thereby further improving system stability; The liquid level pressurization device adopts imported pneumatic proportional valves and high-precision pressure sensors to achieve pressure detection and real-time closed-loop feedback control in the insulation furnace, with PID adjustment method. It has functions such as multi-level linear pressurization, automatic tracking and setting of pressurization curve, insulation furnace leakage compensation, and liquid level compensation. High pressure control accuracy and good repeatability ensure the stability and consistency of the low-pressure pouring process, effectively improving the yield of castings& nbsp; technical parameter Parameter NameParameter valueCompanyHolding Furnace Capacity (AL)four hundredKgMoving template size800X800mmSpacing between columns1000X1000mmMoving template travelone thousandmmMinimum opening gearfour hundredmmMaximum opening gearone thousand and four hundredmmOpening forceone hundred and seventy-sixKNCombining forceone hundred and twentyKNEjection forceone hundred and seventy-sixKNStatic mold core pulling forceseventyKNStatic mold core pulling stroketwo hundredmmHydraulic system working pressuretwelveMPaOil pump motor powereighteen point fiveKWInsulation furnace powerthirtyKW
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