J453B 300Kg low pressure casting machine is a general equipment for low pressure casting of nonferrous aluminum alloy, which can be widely used in the production of small and medium-sized aluminum alloy castings in automobiles, motorcycles, electric power fittings, high-voltage switches, instruments, textile machinery and aerospace industry. & nbsp; The machine is composed of a main engine, hydraulic system, melting pool type insulation furnace and its lifting mechanism, liquid level pressurization device, electrical control system, and mold cooling system. Performance characteristics: The closing mechanism adopts four column guidance; The casting is ejected in a reverse ejection mode; The insulation furnace can be lifted and moved, facilitating the replacement of the liquid lifting pipe and the maintenance of the insulation furnace; Equipped with multiple mold cooling circuits, with optional cooling media and automatic control of cooling time; Cooling parameters can be set and modified; Melting pool type insulation furnace, radiation heating. Control adopts PID+SCR, rated temperature range: 680-750 ℃, temperature control accuracy:± 5℃； The electrical control system consists of two parts: a PLC control device and a human-machine interface. The control system completes the host action control, liquid level pressurization control, and mold cooling control of the low-pressure casting machine; 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. Technical parameters; Serial numberParameter NameParameter valueCompanyoneHolding Furnace Capacity (AL)three hundredKgtwoMoving template size700X700mmthreeSpacing between columns900X900mmfourMoving template traveleight hundredmmfiveMinimum opening gearthree hundredmmsixMaximum opening gearone thousand and one hundredmmsevenOpening forceone hundred and seventy-sixKNeightCombining forceone hundred and twentyKNnineEjection forceone hundred and seventy-sixKNtenStatic mold core pulling forceseventyKNelevenStatic mold core pulling strokeone hundred and fiftymmtwelveHydraulic system working pressuretwelveMPathirteenOil pump motor powereighteen point fiveKwfourteenInsulation furnace powertwenty-fourKw
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