Aluminum alloy smelting, refining, degassing and quantitative soup feeding device for die casting machine

Abstract

The invention discloses an aluminum alloy smelting, refining, degassing and quantitative soup feeding device for a die-casting machine, which comprises the die-casting machine, a linear soup feeding machine, an immersion type rotary AB furnace, a cantilever type double-rotor rotary degassing machine and a melting furnace, a melting furnace feeding tower is arranged at one end of the melting furnace, and a melting furnace holding chamber is arranged in the melting furnace; a liquid outlet of the melting furnace is connected with a molten aluminum launder; the immersion type rotary AB furnace comprises a base arranged in a foundation pit, a rotary seat is movably installed at the upper end of the base, and an A furnace and a B furnace are installed on the rotary seat. The melting furnace adopts a dumping type centralized melting furnace, namely a dumping type melting furnace with a specially designed furnace opening is used, and the efficiency of feeding and transferring aluminum alloy molten metal is improved. A quantitative furnace or a continuous heat preservation furnace is replaced by an immersion type rotary AB furnace capable of rotating by 360 degrees; and the degassing efficiency is improved by high rotating speed for degassing. And a cantilever type double-rotor rotary degassing machine is used for improving the degassing efficiency again, and the refining degassing work is completed within 50 minutes.

Description

technical field [0001] The invention relates to the technical field of soup feeding devices, in particular to an aluminum alloy smelting, refining, degassing and quantitative soup feeding device used in a die casting machine. Background technique [0002] At present, the quantitative soup feeding devices on the market are mainly divided into two methods: quantitative furnace feeding with degassing bricks and continuous furnace feeding with partial degassing. However, neither of these two methods can avoid the problems of oxidation slag inclusion and high gas content. [0003] 1. Quantitative furnace method with degassing bricks, continuous degassing in the furnace, inert gas such as nitrogen / argon, etc., will continuously float up from the bottom to the surface of the aluminum alloy metal liquid, destroying the dense aluminum oxide on the surface of the aluminum alloy metal liquid. The aluminum oxide layer continues to bring oxide slag inclusions. Even if the ceramic filte...

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Problems solved by technology

[0004] 2. For continuous furnaces with partial degassing, there are areas such as the soup intake and discharge ports that cannot be covered by rotary degassing, and the gas content of the aluminum alloy molten metal will continue to rise over time.

The quality of aluminum alloy molten metal brought by the above process can no longer meet the actual production needs of super large die casting machines

At the same time, when the quantitative demand reaches more than 130Kg to 150Kg each time, the quantitative furnace injects the required aluminum alloy metal liquid into the barrel for a long time, and the temperature loss is serious

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