Aluminum alloy pouring pressure-maintaining equipment for preventing deformation by stroking and pushing casting surface

Abstract

The invention discloses aluminum alloy pouring pressure-maintaining equipment for preventing deformation by stroking and pushing a casting surface. The equipment comprises a mounting base, a pressuremaintaining furnace, an adjusting shaft, a movable cover, a stroking and pushing roughness preventing device, a pressure display screen and an air compressor. The equipment has the beneficial effectsthat: by means of an arranged side chisel structure, the internal pressure has the action of synchronous movement when the side chisel structure and the equipment are pressurized to a pressure maintaining state; and under the cooperation of rotary stroking of arc-shaped convex particles, the phenomenon that bubbles exist or demolding is difficult due to uneven solidification of the outer side of acasting is prevented. According to the invention, an anti-discoloration mechanism is used for carrying out hot air blow-melting treatment on oil generated by precipitation at the upper part of a pouring liquid when the pouring liquid reaches the top surface and is pressurized to a pressure maintaining effect. An oil liquid is prevented from forming a confluence effect. Meanwhile, the oil liquid is absorbed under the action of the flow washing sleeve, so that the color difference phenomenon on the surface of a formed casting is prevented.

Description

technical field [0001] The invention relates to the field of aluminum alloy manufacturing, more precisely, it is an aluminum alloy pouring and pressure maintaining equipment that utilizes the casting surface to push and push to prevent deformation. Background technique [0002] With the rapid development of my country's industrial level, the application of aluminum alloys is becoming more and more extensive, and the quality and performance requirements of its castings are also getting higher and higher. When casting aluminum alloy, it adopts low-pressure casting, which can realize the processing of castings with little allowance and no allowance. Precision, thin-walled, lightweight and energy-saving castings, when using the low-pressure casting process, when the height of the pouring liquid is determined, it will be pressurized and maintained under the action of the equipment, and when the pressure on the metal liquid surface After rising to the solidification pressure, the...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an aluminum alloy pouring and pressure-holding equipment that utilizes the casting surface to push and prevent changes, so as to solve the problem in the prior art that when the height of the pouring liquid is determined, its role in the equipment After the pressure-holding process is performed, and when the pressure on the metal liquid surface rises to the solidification pressure, the casting needs to be pressure-holding and completely solidified. Due to the special properties of the pouring liquid, the top surface will appear different from other surfaces. The color of the layer, and the surface and internal pores are eliminated during the pressurization process, due to the flow inertia of the casting liquid, there will be a phenomenon of higher peripheral accumulation, and some small concave holes appear, and the metal casting liquid When its own fluidity encounters bubbles or holes, its self-healing ability is poor

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