Aluminum-titanium-boron production process

Abstract

The invention discloses an aluminum-titanium-boron production process, comprising the following steps: firstly, carrying out reduction reaction on raw materials in a reduction platform package, and stirring by adopting a stirrer according to the requirements in reduction reaction; carry out alloying operation in an inverter frequency furnace after reduction reaction is ended; finally processing alloy aluminum liquid in a continuous casting and rolling process through a crucible, so as to obtain an aluminum-titanium-boron product, wherein the crucible is a crucible discharging aluminum liquid from the bottom, the inverter frequency furnace is a coreless induction furnace, and the electromagnetic stirring force inside a hearth is proportional to specific power density of an electric furnace and inversely proportional to square root of work frequency. Reduction reaction is separated from the alloy operation, the problem that the temperature sharply changes and cannot be controlled due to a lot of heat generated in reduction reaction is avoided, meanwhile, the hold-up time of the crucible is reduced, and the capacity is improved. Discharge of the aluminum liquid from the crucible is changed into a bottom discharge method, and electromagnetic stirring generated by the inverter frequency furnace can be utilized to prevent participation of titanium element, and therefore no holding furnace or electromagnetic stirrer are needed and investment in equipment is reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgical production, and relates to an aluminum alloy production method, in particular to an aluminum titanium boron production process. Background technique [0002] Aluminum-titanium-boron alloy is the most commonly used grain refiner for aluminum and aluminum alloys. It is added to aluminum and aluminum alloys to refine the base material. It is widely used in the global aluminum casting and rolling industry. Years of research have found that: TiB2 and TiAl3 are the main refining substances in AlTiB wire, and the content of Ti and B in the alloy and the distribution and morphology of the two phases of TiB2 and TiAl3 in AlTiB alloy And the size has a direct impact on the grain refinement ability of AlTiB alloy used as grain refiner. Therefore, in the production process of aluminum titanium boron, how to ensure the accuracy of the composition and control the distribution, morphology and size of the ...

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Problems solved by technology

However, due to the working characteristics of the industrial frequency furnace and the large amount of heat generated during the reduction reaction, it is impossible to effectively control the stirring force and temperature of the aluminum water during the reduction reaction and alloying operations; therefore, it is impossible to produce high-quality aluminum and titanium. Boron alloy products; at the same time, in the traditional process, the alloy aluminum water from the crucible adopts the upward method, and due to the strong precipitation of titanium in the aluminum-titanium-boron alloy, it is necessary to increase the holding furnace and electromagnetic stirrer, so that the input Increased costs

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