A Quantitative and Accurate Die Casting Equipment

Abstract

The invention relates to pressure casting equipment capable of quantifying accurately. The pressure casting equipment capable of quantifying accurately comprises a crucible, a controller, a mold, a liquid lifting pipe, a gas inlet pipe and a pretreatment device; the pretreatment device comprises a preheating mechanism and a quantifying mechanism; the preheating mechanism comprises a gas inlet pipe, a preheating chamber and a gas outlet pipe; a preheating net and two preheating assemblies are arranged in the preheating chamber; the preheating assembly comprises a translation unit, a lamp shelland a lamp pipe; and the quantifying mechanism comprises a quantifying chamber, a ventilating pipe and a quantifying assembly arranged in the quantifying chamber. The pressure casting equipment capable of quantifying accurately heats the compressed air by the preheating mechanism so as to reduce the temperature difference between the compressed air and the metal liquid and avoid the influence on the quantity of metal liquid introduced into the mold by the fact that the air is expanded when encountering the metal liquid; more than that, the quantity of the compressed air which is introduced into the crucible is accurately controlled by the quantifying assembly, so that the mold is full of the quantified metal liquid, and the quality of cast and the practicability of equipment are improved.

Description

technical field [0001] The invention relates to the field of hydraulic casting equipment, in particular to quantitative and precise pressure casting equipment. Background technique [0002] Die casting is a kind of liquid or semi-solid metal or alloy, or liquid metal or alloy containing a reinforced phase, which is filled into the cavity of the die-casting mold at a high speed under high pressure, and makes the metal or alloy under pressure A casting method that solidifies to form a casting. The principle of die casting is mainly the principle of injection molding of molten metal. Usually, the setting of casting conditions is adjusted by the speed, pressure, and switching position of the speed on the die casting machine. [0003] When casting castings in existing die casting equipment, metal is usually melted in the crucible, and then compressed air is introduced to squeeze the molten metal, so that the molten metal enters the mold through the riser tube, and the casting is...

AI Technical Summary

Problems solved by technology

[0003] When casting castings in existing die casting equipment, metal is usually melted in the crucible, and then compressed air is introduced to squeeze the molten metal, so that the molten metal enters the mold through the riser tube, and the casting is obtained after cooling and forming. When producing in this way, it is often impossible to accurately control the amount of compressed air passing into the crucible. Too much air will easily squeeze the mold, causing the mold to deform. Too little air will prevent the molten metal from filling the mold, which will affect the production of castings. Quality, not only that, because the metal is in a liquid state, the surface temperature is high, so that the temperature difference between the compressed air and the liquid metal is large. The amount of liquid metal passed into the mold leads to deviations in the casting model during processing and production, which in turn reduces the practicability of existing die casting equipment

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