Preparation method for titanium alloy wide sheet
2011
The invention discloses a preparation method for a titanium alloy wide sheet, comprising the following steps of: step 1, stacking 4-6 titanium alloy plates, as well as coating and welding the titanium alloy plates into a stacked-rolled pack; step 2, rolling the stacked-rolled pack in the step 1 by a 2800-mm four-roll reversible hot-rolling unit; step 3, performing stress relief annealing on the rolled stacked-rolled pack, and then shearing and unpacking the annealed stacked-rolled pack to obtain a titanium alloy sheet in a thickness of 1.0-2.5 mm; and step 4, performing sharpening treatment on the surface of the titanium alloy sheet, then cold-rolling the sharpened titanium alloy sheet by a 1780-mm six-roll reversible cold-rolling unit, and finally machining the cold-rolled titanium alloy sheet to obtain a titanium alloy wide sheet in a thickness of 0.6-2.0 mm and in a width of 1000-1500 mm. The preparation method for a titanium alloy wide sheet disclosed by the invention combines coating and stacking-rolling with cold-rolling; and the surface of the prepared titanium alloy sheet is a cold-rolled surface uniform in structure and good in quality.
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