Aluminum-titanium-carbon alloy preparation method capable of controlling average nominal diameter of TiC particles

Abstract

The invention relates to an aluminum-titanium-carbon alloy preparation method capable of controlling the average nominal diameter of TiC particles, which comprises the steps of: heating molten aluminum in an electric induction furnace and keeping the electric induction furnace and the molten aluminum for a first set time at a set temperature; adding an alloy material comprising potassium fluotitanate and potassium fluoborate into the molten aluminum; and allowing an electric current flowing in a coil of the electric induction furnace to act on the molten alloy in the electric induction furnace and maintaining the electric induction furnace and the molten alloy for a second set time at the set temperature. The implementation of the aluminum-titanium-carbon alloy preparation method capable of controlling the average nominal diameter of the TiC particles of the invention has the advantages that: a plurality of alternating magnetic fields are overlapped in the furnace body, so a magnetic force is applied to all the parts in the furnace body and the average nominal diameter of the TiC particle clusters is small. Thus, the capability of the aluminum-titanium-carbon alloy for fining the crystal particles of the aluminum or the aluminum alloy is improved.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a method for preparing an aluminum-titanium-carbon alloy that controls the average nominal diameter of TiC particle clusters. Background technique [0002] Al-Ti-C alloy is an intermediate alloy that is widely used in aluminum processing worldwide and is the most effective for refining aluminum and aluminum alloy grains. Adding the above-mentioned aluminum-titanium-carbon alloys to aluminum or aluminum alloys can refine the grains of the aluminum or aluminum alloys, thereby greatly improving their yield strength, calendering plasticity, and ductile-brittle transition temperature. It is used in many fields, such as aviation and so on. At present, the widely used and effective industrialized aluminum-titanium-carbon master alloy manufacturing method is the potassium fluorotitanate carbon-aluminothermic reaction method, which produces a large amount of TiC as the crystal nucleus of alumin...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to aim at the defects in the prior art that the average nominal diameter of the TiC particle clusters in the AlTiC alloy is relatively large so that the grain refinement ability of the AlTiC on aluminum or aluminum alloy is not good, Provided is a method for preparing an aluminum-titanium-carbon alloy that makes the average nominal diameter of TiC particle clusters in the obtained aluminum-titanium-carbon alloy smaller and controls the average nominal diameter of TiC particle clusters

Images