Magnesium and magnesium-alloy quantitative casting furnace

Abstract

The invention discloses a magnesium and magnesium-alloy quantitative casting furnace which comprises a large-capacity crucible that is externally provided with a first electrical heating component; the large-capacity crucible is communicated with a quantitative furnace which is externally provided with a third electrical heating component by a discharge pipe that is externally provided with a second electrical heating component; the large-capacity crucible is provided with a metal cover plate which is assembled in a sealing way, and the metal cover plate passes through a one-way air inlet control device; and a sealing furnace cover of the metal cover plate is provided with an air outlet control pressure release valve. The magnesium and magnesium-alloy quantitative casting furnace and a horizontal cold chamber die casting machine are arranged in a horizontal way, and quantitative casting of molten metal can be completed by filling inert gas by utilizing air pressure principle. A bigger and a smaller furnace bodies play the different roles, and the bigger furnace body is used for heating and insulating molten metal and maintaining the gas pressure, is sealed in the whole process, is not contacted with the outside, and ensures the metal quality; and meanwhile, the arranged pressure release valve has the functions of convenient cleaning and convenient feeding. The smaller furnace body is used for storing unit molten metal needed to be treated by quantitative casting, and can accurately heat the molten metal to the best temperature due to the small volume, thus ensuring the quality of castings.

Description

technical field [0001] The invention relates to the technical field of metal casting, in particular to a quantitative casting furnace for magnesium and magnesium alloys, which is especially suitable for automatic pouring of horizontal cold chamber die-casting machines in foundry factories. Background technique [0002] Magnesium and magnesium alloy quantitative casting furnace is used as supporting equipment of horizontal cold chamber die casting machine, and the technical performance indicators that must be possessed at the same time are simple operation, fast and safe, firm and durable, and low cost. Most of the existing quantitative casting devices for magnesium and magnesium alloys use variable frequency motors to rotate impeller pumps to pump out the molten metal; or learn from the ancient method of digging wells to draw water, use a hopper to pull the molten metal in place, and then dump it. into the trough. [0003] For example, the utility model patent with the appl...

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Problems solved by technology

[0005] None of the above-mentioned devices has the ability to heat the quantitative magnesium melt separately, but only casts the heated magnesium melt in various ways. This single form is not suitable, and the quality of the cast metal is unstable.

[0006] Another example is that the metal quantitative casting furnaces produced by enterprises now use bracket-type lifting mechanisms to raise the furnace body to achieve the purpose of smooth casting, which will make operators more burdened in the process of operation, maintenance, feeding, and slag removal. And the security risks also increase accordingly

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