Low pressure casting integrally-sealed boiler with pressurization structure

Abstract

The invention discloses a low-pressure casting integrally sealed furnace with a pressurized structure, which includes a boiler body, a base structure is installed at the bottom of the inner recess of the boiler body, a crucible is installed on the base, the crucible and the inner wall of the boiler body recess The interlayer is filled with heat-insulating material, and the riser pipe penetrates into the crucible through the middle part of the boiler cover. Lifting screw rods are arranged on both sides of the mouth of the riser pipe, and gears are installed on the lifting screw rods. A threaded structure is provided to connect with the threaded structure on the horizontal screw rod, one end of the horizontal screw rod is connected to the motor, and the outer wall of the boiler body is equipped with a metal shell structure. In this low-pressure casting integral sealed furnace with a pressurized structure, the inner wall of the crucible is made of graphite structure, which effectively solves the phenomenon of iron increase in molten metal, and the outer wall has a stainless steel metal reinforcement structure, which enhances the strength of the crucible and improves its compression resistance. The pressing speed is fast, the production efficiency is improved, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of low-pressure casting, in particular to a low-pressure casting integrally sealed furnace with a pressurized structure. Background technique [0002] The more widely used boilers are metal crucibles. Since the crucible is immersed in the molten metal for a long time, it is easy to increase the iron in the molten metal and affect the mechanical properties and performance of aluminum alloy castings. Some of them are graphite crucibles, but Its strength and compressive capacity are insufficient, and this problem has been difficult to solve. The original pressurized structure is generally filled with inert gas or connected with a hydraulic machine to pressurize the pressurized structure, which has high cost and low efficiency. casting quality. Contents of the invention [0003] The object of the present invention is to provide a low-pressure casting integrally sealed furnace with a pressurized structure to s...

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Problems solved by technology

[0002] The more widely used boilers are metal crucibles. Since the crucible is immersed in the molten metal for a long time, it is easy to increase the iron in the molten metal and affect the mechanical properties and performance of aluminum alloy castings. Some of them are graphite crucibles, but Its strength and compressive capacity are insufficient, and this problem has been difficult to solve. The original pressurized structure is generally filled with inert gas or connected with a hydraulic machine to pressurize the pressurized structure, which has high cost and low efficiency. casting quality

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