Alloy liquid extrusion casting forming device and process method thereof

Abstract

The invention discloses an alloy liquid extrusion casting forming device which comprises a hammerhead (1), a static die (2), a movable die (3) and a pouring slot (4). The device adopts the technical scheme that a declined and downward funnel-shaped pouring slot occupied by both the movable die and the static die arranged respectively by half is arranged on the parting plane on one side of a vertical die casting mould; a cylinder chamber type feed liquid chamber and the piston type hammerhead with a sealing knife is arranged on the static die; the hammerhead is controlled to be pushed up, and simultaneously the sealing knife seals the pouring slot. Firstly, feed liquid is filled into the a die cavity at high speed with low pressure, then the semisolid feed filled into the die cavity is extruded at low speed with high pressure, and the semisolid feed is gradually condensed to be formed under high-pressure low-speed extrusion. The alloy liquid extrusion casting forming device and the process method thereof integrate full casting functions of low-pressure filling and high-pressure extrusion into a whole, ensure that forming of alloy casting achieves the purposes of no gas entrapment, no cast seam, no mis-run, no forging crack, no fash, compact texture, fine crystal grain, high mechanical property, capability of performing thermal treatment and sealing, high dimensional accuracy, energy saving and low cost.

Description

technical field [0001] The invention relates to an alloy liquid extrusion casting device and process, specifically refers to an alloy that utilizes the loading of vertical extrusion equipment, integrates mold and extrusion casting functions, and realizes alloy liquid extrusion casting to form precision alloy castings A liquid squeeze casting molding device and a process method thereof. Background technique [0002] The alloy liquid forming process of the prior art is divided into high pressure casting method, low pressure casting method (including gravity casting) and casting forging method; [0003] The high-pressure casting method uses a high-pressure, high-speed die-casting machine to inject hot liquid magnesium and aluminum alloy into the cavity of the molding mold to cool and shape the product to complete the molding. This technology has the characteristics of fast filling speed and is suitable for thin-walled and complex The production of parts, but poor exhaust often...

AI Technical Summary

Problems solved by technology

[0005] The casting and forging method is to first produce the casting blank by means of low pressure or gravity casting, and then heat the casting blank and then carry out extrusion forging through the mold. This technology has forming defects such as forging cracking, forging cracking, flashing, and low dimensional accuracy. , as well as secondary processing energy, waste of man-hours, high cost and other deficiencies

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