A kind of preparation method of al-cu-mg alloy rod material
An al-cu-mg, alloy rod technology, applied in the field of aluminum alloy processing, can solve the problems of low rod yield, uneven metal flow, instability of extrusion temperature, etc., and achieve improved yield and structural properties Uniform, comprehensive performance improvement effect
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[0018] see figure 1 , a method for preparing an Al-Cu-Mg alloy rod provided in an embodiment of the present invention includes the following steps:
[0019] Step 1) Raw material preparation: use pure metal aluminum, pure metal copper, pure metal magnesium, Al-Mn master alloy, Al-Zr master alloy, Al-Ti master alloy as raw materials, prepare materials, so that the ingredients are calculated by weight percentage and include : Cu 4.0~5.3wt.%, Mg 0.6~1.9wt.%, Mn 0.4~1.0wt.%, Zr 0.08~0.2wt.%, Ti 0.01~0.03wt.%, Si 0.03~1.0wt.%, Fe <0.15wt.%, each impurity element is less than 0.05wt.%, and the total is less than 0.15wt.%, the balance is Al;
[0020] Step 2) Alloy smelting: Add pure metal aluminum, Al-Mn master alloy, Al-Zr master alloy, and Al-Ti master alloy into the reflective aluminum melting furnace at the same time, add pure metal copper after melting, and heat up to 730-740°C , then add pure metal magnesium, heat up to 740-750°C after melting the metal, refine with refining a...
Embodiment 1
[0028] 1) Raw material preparation: the alloy composition is Cu: 4.3wt.%, Mg: 1.5wt.%, Mn: 0.7wt.%, Zr: 0.12wt.%, Ti: 0.02wt.%, Si: 0.1wt.%, Fe: <0.15wt.%, other unavoidable impurity elements are each less than 0.05wt.%, and the total amount is less than 0.15wt.%, and the balance is Al. Use pure metal aluminum, pure metal copper, pure metal magnesium, Al-Mn master alloy, Al-Zr master alloy, Al-Ti master alloy as raw materials for material preparation.
[0029] 2) Alloy smelting and casting: smelting in a reflective aluminum melting furnace, adding pure metal aluminum, Al-Mn master alloy, Al-Zr master alloy, and Al-Ti master alloy into the furnace for melting at the same time, and adding pure metal after melting Copper, heat up to 740°C, add pure metal magnesium, when adding metal magnesium, press the magnesium block completely below the liquid surface through the pressure cover; after these metals are melted and stirred evenly, heat up to 750°C, use refining agent for refining...
Embodiment 2
[0035] 1) Raw material preparation: the alloy composition is Cu: 5.3wt.%, Mg: 1.8wt.%, Mn: 1.0wt.%, Zr: 0.2wt.%, Ti: 0.02wt.%, Si: 0.1wt.%, Fe: <0.15wt.%, other unavoidable impurity elements are each less than 0.05wt.%, and the total amount is less than 0.15wt.%, and the balance is Al. Use pure metal aluminum, pure metal copper, pure metal magnesium, Al-Mn master alloy, Al-Zr master alloy, Al-Ti master alloy as raw materials for material preparation.
[0036] 2) Alloy smelting and casting: smelting in a reflective aluminum melting furnace, adding pure metal aluminum, Al-Mn master alloy, Al-Zr master alloy, and Al-Ti master alloy into the furnace for melting at the same time, and adding pure metal after melting Copper, heat up to 740°C, add pure metal magnesium, when adding metal magnesium, press the magnesium block completely below the liquid surface through the pressure cover; after these metals are melted and stirred evenly, heat up to 750°C, use refining agent for refining ...
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