Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum

Abstract

The invention discloses an efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum, which is suitable for aluminum water high-quality conveying of the aluminum alloy casting field. The problems to be solved are temperature drop, oxidization and corrosion on the runner due to aluminum water adhering in an aluminum water conveying process. According to the technical scheme adopted by the invention, the key point is that a reinforced fiber glass ceramic runner (1) is used to prevent the aluminum water from adhering on and corroding the runner, so that heat conduction loss of the runner is reduced; a nano microporous heat-insulating material (2) and ceramic fiber heat-insulating materials (3, 4) are used to reduce heat conduction loss of the runner to a minimum; by virtue of a ceramic heating unit (8) on a stainless steel supporting plate (7) in a runner cover (6) is used to heat the runner cover to the aluminum water temperature, so that aluminum water radiation heat loss is reduced to a minimum, and convective heat exchange loss is compensated; a temperature measuring device (12) is used to monitor the practical temperature of the aluminum water in a runner outlet; and an atmosphere control tube (13) is used to lead in an inert gas, so that the aluminum water is oxidized to a minimum. The efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum is especially suitable for conveying high-quality aluminum water of an aluminum alloy quantitative furnace.

Description

【Technical field】 [0001] The invention belongs to a "high-efficiency thermal insulation non-stick aluminum anti-alumina water flow tank" suitable for high-quality transportation of aluminum alloy melt in the field of aluminum alloy casting. The invention is particularly suitable for aluminum alloy quantitative furnaces to provide high-quality aluminum alloy melts for high-pressure, low-pressure and gravity casting machines. 【technical background】 [0002] In the field of aluminum alloy casting, the delivery of molten aluminum from the quantitative holding furnace to the casting machine is generally realized through a heat-resistant stainless steel launder without a cover. During the process of aluminum water passing through the launder, due to the heat conduction loss of the launder, the convective heat loss and radiation heat loss through the surface of the launder, the temperature of the aluminum water decreases to a certain extent, especially when the length of the launde...

AI Technical Summary

Problems solved by technology

[0003] Because there is usually no cover for the aluminum water flow tank, in addition to causing the heat loss of the aluminum water, the aluminum water in contact with the air is bound to be oxidized, and the aluminum water oxide and the aluminum water enter the mold together, which will inevitably affect the quality of the casting product

[0004] Because the heat-resistant stainless steel launder is used, even if the anti-aluminum water adhesion and corrosion coating is used, there will be phenomenon of aluminum water staining and erosion on the surface of the launder, and solidification and crusting. In the aluminum water, it becomes an inclusion in the aluminum water, which seriously affects the quality of the casting product

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