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Preparation method of high-silicon alloy for combustor

A high-silicon aluminum alloy and burner technology, which is applied in the field of casting, can solve the problems of complex process, high cost, and large energy consumption, and achieve the effect of simple preparation process, consistent grain size and good performance

Inactive Publication Date: 2018-03-09
QINGDAO TIANDI CASTING CO LTD
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Problems solved by technology

At present, the main process of manufacturing silicon-aluminum alloy is: adding metal or non-metallic elements on the basis of pure aluminum and melting, but this method consumes a lot of energy, costs high and the process is complicated

Method used

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Embodiment

[0016] A method for preparing a high-silicon aluminum alloy for a burner in this embodiment comprises the following steps:

[0017] (1) Ingredients: mix silicon carbide aluminum alloy and solid silicon according to a certain weight ratio, silicon carbide aluminum alloy 10% (silicon carbide is about 70%, aluminum is about 30%), and solid silicon is 90%;

[0018] (2) Furnace loading: Put the prepared silicon carbide aluminum alloy and solid silicon into the intermediate frequency induction furnace, and control the melting temperature at 1400°C to fully melt;

[0019] (3) Separation: After fully melting, the melt is divided into two layers. The upper layer is liquid aluminum dissolved in silicon liquid, and the lower layer is liquid silicon carbide dissolved in silicon liquid. Separate the upper and lower layers, and the lower liquid can be purified in a molten state to regain silicon;

[0020] (4) Microalloying: put a certain quality of copper, aluminum-titanium alloy, aluminu...

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Abstract

The invention discloses a preparation method of a high-silicon aluminum alloy for a burner. The silicon carbide aluminum alloy and solid silicon are mixed in proportion by weight, and the silicon carbide aluminum alloy is 10-20%, of which silicon carbide is about 50-70%, and aluminum is about 30%. ~50%; solid silicon 80-90%, and then put the mixture in a medium frequency induction furnace for remelting. After remelting is completed, silicon carbide is dissolved in the lower part of the silicon liquid, aluminum is dissolved in the upper part, and then the bottom and upper solutions are separated. Add copper, aluminum titanium, aluminum manganese, aluminum nickel, magnesium, iron, zinc, bismuth and other alloying elements to the obtained aluminum and silicon liquid mixture, then refine, remove slag, and cast to prepare high silicon aluminum alloy.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a preparation method of a high-silicon aluminum alloy for a burner. Background technique [0002] At present, with the development of science and technology, aluminum alloys are widely used in the national economy and daily life because of their low density, good strength, good corrosion resistance, good electrical and thermal conductivity, castability, weldability and good processing performance. A wide range of applications, especially kitchen burners, require higher corrosion resistance of materials. At present, the main process of manufacturing silicon-aluminum alloy is: adding metal or non-metallic elements on the basis of pure aluminum and melting, but this method consumes a lot of energy, costs high and the process is complicated. Contents of the invention [0003] In order to overcome the above-mentioned technical problems existing in the prior art fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/10C22C32/00
CPCC22C1/1036C22C1/06C22C32/0063
Inventor 李玉敏
Owner QINGDAO TIANDI CASTING CO LTD
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