The invention provides a high strength
alloy round
aluminium rod and a production method thereof.
Liquid aluminium with the content of more than 99.5% is added into a
smelting furnace, the temperature is controlled to be 760-800 DEG C;
silicon and
magnesium and
iron chelating agent are added, wherein the content of Si is controlled to be less than or equal to 0.6%, the content of Mg is controlled to be 0.3-0.9%, and the content of Fe is controlled to be less than or equal to 0.3%;
aluminium melt is prepared,
nitrogen is utilized to blow
powder refining agent into the solution for refining, the usage amount of refining agent is 1.2kg /
ton, and the pressure of
nitrogen which is led in is 0.05-0.4MPa, thus obtaining
aluminium melt with higher purity; and
continuous casting and tandem rolling are carried out on aluminium melt subject to standing, before
casting, Al-Ti-B rod is added in a chute at the speed of 150mm / min, so as to carry out online grain refinement treatment on the aluminium melt; and the rolled wire is subject to
solid solution strengthening by virtue of an atomization
quenching channel. Compared with common pure aluminium electrician round aluminium rod, the Al-Si-Mg
alloy round aluminium rod of the invention has the advantages that: tensile strength is improved by 56.5%, the maximum can reach 64.6%; corresponding elongation is increased by 200%, the maximum can reach 228%; and resistivity is increased by only 28%.