Corrosion reaction box for flow corrosion aluminum alloy casting complex slender copper pipe core

Abstract

The invention provides a corrosion reaction box for a flow corrosion aluminum alloy casting complex slender copper pipe mold core, and relates to the technical field of corrosion reaction boxes. The corrosion reaction box for the flow corrosion aluminum alloy casting complex slender copper pipe mold core comprises a box body, universal wheels are fixedly connected to the corners of the bottom of the box body, a sealing box cover is rotationally connected to the top of the box body, a box opening handle is fixedly connected to the center of the front end of the sealing box cover, observation windows are embedded in the center of the front end of the box body and the center of the top of the sealing box cover, a corrosive liquid circulating mechanism is installed on one side of the outer wall of the box body, a rotary supporting mechanism is fixedly connected to the top of the center of the box body, and an aluminum alloy casting positioning mechanism is rotationally connected to the top of the rotary supporting mechanism. By designing a flowing type corrosion machining structure, the copper pipe mold core in the aluminum alloy casting can be rapidly corroded, the corrosion efficiency is greatly improved, and corrosion damage to an aluminum alloy casting body cannot be caused.

Description

technical field [0001] The invention relates to the technical field of corrosion reaction boxes, in particular to a corrosion reaction box for flowing and corroding complex and elongated copper tube cores of aluminum alloy castings. Background technique [0002] In aero-engines, there are many aluminum alloy casings and shell parts. This type of parts requires relatively complex elongated holes to be made inside, with a diameter of generally 3 to 6 mm and an aspect ratio greater than 60 to transport high pressure (some need to withstand high pressure up to 120 atmospheres) oil, fuel, and lubricants. class of liquid substances. Therefore, the parts are required to have sufficient strength and compactness. The aluminum alloy fine hole is formed by using the embedded copper tube, that is, the copper tube is used as the core, cast into the casting, and then after the casting is successful, the copper tube core is removed by corrosion with corrosive liquid. This method directl...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a corrosion reaction box for flowing and corroding complex and slender copper tube cores of aluminum alloy castings, which solves the problem that although the immersion corrosion method can corrode the copper tubes on the inner wall of the aluminum alloy, the corrosion The processing time is too long, and the corrosive solution also has certain damage to the aluminum alloy body, which is easy to cause damage to the aluminum alloy castings

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