Preparing method for 6-series aluminum alloy sectional bar

[0030] A kind of preparation method of 6 series aluminum alloy profiles, such as figure 1 As shown, there are the following steps:

[0031] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0032] (2) Heating the ingot with a length of 1000mm, adopting the gradient heating method, the temperature difference between the head and the tail is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0033] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0034] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0035] (5) Extrusion production: After the ingot and the mold a...

[0041] A preparation method of a 6-series aluminum alloy profile comprises the following steps:

[0042] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0043] (2) Heating the ingot with a length of 1000mm, adopting the method of gradient heating, the temperature gradient is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0044] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0045] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0046] (5) Extrusion production: After the ingot and the mold are heated, the upper mold is extruded after the extrusion cylinde...

[0052] A preparation method of a 6-series aluminum alloy profile comprises the following steps:

[0053] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0054] (2) Heating the ingot with a length of 1000mm, adopting the method of gradient heating, the temperature gradient is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0055] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0056] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0057] (5) Extrusion production: After the ingot and the mold are heated, the upper mold is extruded after the extrusion cylinde...