Aluminum alloy refining agent and preparing technology thereof

Abstract

The invention provides an aluminum alloy refining agent and a preparing technology thereof. The aluminum alloy refining agent comprises, by mass part, 25 parts to 35 parts of sodium chloride, 20 parts to 30 parts of potassium chloride, 5 parts to 10 parts of sodium fluosilicate, 10 parts to 20 parts of sodium fluoride, 5 parts to 10 parts of potassium fluotitanate, 5 parts to 10 parts of potassium fluoborate, 5 parts to 10 parts of sodium carbonate, 10 parts to 20 parts of sodium sulfate, 1 part to 5 parts of potassium nitrate and 2 parts to 5 parts of potassium fluoroaluminate. According to the aluminum alloy refining agent, through the optimized formula, the aluminum alloy refining agent can achieve the aim of refining of deslagging and degassing, the effective grain refining effect is achieved, in the process of deslagging and degassing refining of aluminum alloy melt, the grains are refined, the grains are evenly distributed in the aluminum alloy melt, and therefore the working procedures of intermediate alloy adding and the like in modification of the aluminum alloy melt can be reduced, the production technology of the aluminum alloy is optimized, and the production efficiency of the aluminum alloy is improved.

Description

technical field [0001] The invention relates to the field of metal smelting and processing, in particular to an aluminum alloy refining agent and a preparation process of the aluminum alloy refining agent. Background technique [0002] The existing aluminum alloy refining agent uses inert gas such as nitrogen as the carrier, sprays it into the molten aluminum alloy through a powder sprayer, and reacts physically and chemically with impurities in the molten aluminum alloy through the stirring of the inert gas to adsorb oxides. Impurities such as hydrogen and hydrogen float up to the surface of the aluminum alloy melt, so as to achieve the refining purpose of removing slag and degassing. [0003] At present, in order to improve the mechanical properties and process performance of many aluminum alloy casting products, block-shaped aluminum-titanium-boron intermediate alloys are put into the aluminum alloy melt for modification treatment. The aluminum-titanium-boron alloy blocks...

AI Technical Summary

Problems solved by technology

[0004] However, on the one hand, the massive aluminum-titanium-boron alloy block naturally melts slowly and diffuses unevenly, which affects its grain refinement effect; on the other hand, aluminum-titanium-boron is usually put into the aluminum alloy melt transfer bag, in order to prevent aluminum When the alloy melt temperature drops and solidifies, it will generally be transferred to the holding furnace in time, and the aluminum, titanium and boron will sink to the bottom of the transfer bag, resulting in insufficient melting or uneven diffusion of the aluminum, titanium and boron alloy block, which will have a certain impact on process stability.

Images