Method for rolling large-sized aluminum alloy ring piece and performing solid solution treatment by using electric furnace
A solid solution treatment and aluminum alloy technology, which is applied in the field of non-ferrous alloy manufacturing, can solve the problems of low solution treatment efficiency, long forming time, and high energy consumption.
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[0019] The present invention uses a ∮5000mm numerically controlled radial and axial ring rolling machine for rolling forming and resistance furnace heating and solution treatment to produce a large-scale aluminum alloy ring blank of φ2050×130×130mm (outer diameter×wall thickness×height).
[0020] Take the production of rolled aluminum alloy rings from 7050 aluminum alloy as an example:
[0021] Select 7050 aluminum ingot with a specification of φ410×1000mm, heat the aluminum ingot to 440±5°C in an electric furnace, keep it warm for 350 minutes, and then forge it to a height of 250mm on a press, and use a φ450 punch for the first time to punch it flat to 180±10mm, and then punched with a φ650 punch and leveled to 155±5mm, cooled to room temperature to clean the burrs, turning cracks and skin. Then heat the billet to 440±5°C in an electric furnace, keep it warm for 120 minutes, and then release it from the furnace; roll it on a ∮5000mm numerical control radial and axial ring rol...
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