Low-cost extrusion casting process for aluminum-titanium-boron refiner

Abstract

The invention discloses a low-cost extrusion casting process for an aluminum-titanium-boron refiner. The low-cost extrusion casting process comprises the following steps of step 1, preparing a melt; step 2, removing impurities from the melt; step 3, casting the melt; step 4, mold assembly and extrusion; step 5: opening mold and taking a part; and step 6, inspecting and warehousing. In the first step, titanium salt is potassium fluotitanate, boron salt is potassium fluoborate, and the temperature of molten aluminum is 800 DEG C. Compared with an existing manufacturing process of an aluminum-titanium-boron refiner, multiple impurity removal procedures are designed, impurity ions of alloy melt can be effectively reduced, the purity of the aluminum-titanium-boron refiner can be improved, and compared with an existing casting process, an aluminum-titanium-boron refiner casting is produced through the extrusion casting process, the alloy melt can be rapidly solidified under the high pressure, uniform distribution of active property points in the refiner is achieved, aggregation and clustering are avoided, the yield of the method is high, automatic production is convenient to achieve, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the technical field of squeeze casting, in particular to a low-cost squeeze casting process of an aluminum-titanium-boron refiner. Background technique [0002] When using the external nucleation method to refine the grains of aluminum and aluminum alloys, it is necessary to use a refiner to allow the melt to grow in the form of heterogeneous nucleation during solidification to achieve the purpose of grain refinement. Al-Ti Boron refiner is the most common refiner in the aluminum industry. The existing technology adopts the method of casting to manufacture aluminum-titanium-boron refiner. The TiAl3 and TiB2 particles of the prepared casting are unevenly distributed, and the structure shrinks and has pores. The aluminum-titanium-boron refining agent prepared by the process lacks an impurity removal process, resulting in more impurities and affecting the purity of the refining agent. Contents of the invention [0003] The purp...

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Problems solved by technology

[0002] When using the external nucleation method to refine the grains of aluminum and aluminum alloys, it is necessary to use a refiner to allow the melt to grow in the form of heterogeneous nucleation during solidification to achieve the purpose of grain refinement. Al-Ti Boron refiner is the most common refiner in the aluminum industry. The existing technology adopts the method of casting to manufacture aluminum-titanium-boron refiner. The TiAl3 and TiB2 particles of the prepared casting are unevenly distributed, and the structure shrinks and has pores. The aluminum-titanium-boron refining agent prepared by the process lacks the impurity removal process, resulting in more impurities and affecting the purity of the refining agent

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