Preparation method of magnesium alloy matt thin strip for mobile phone shell
A mobile phone case, magnesium alloy technology, applied in metal rolling and other directions, can solve the problems of difficult to meet the needs of use, low mechanical properties of finished products, restricting the development of the industry, etc., to achieve excellent mechanical properties, excellent surface quality, and improved coating performance. Effect
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Embodiment 1
[0017] A method for preparing a magnesium alloy matt thin strip for a mobile phone case, the preparation method comprising the following steps:
[0018] 1) In weight percentage, the magnesium alloy contains 0.5% of Mn, 1.5% of Si, 0.8% of yttrium, 1.2% of Cu, 0.3% of Zn and the rest of Mg are mixed and cast to obtain a magnesium alloy ingot ;
[0019] 2) Heating the magnesium alloy ingot to 600°C, and annealing with heat preservation and homogenization for 6 hours;
[0020] 3) Before hot-rolling, heat the magnesium alloy ingot to 450°C and keep it warm for 5 hours, then hot-roll the magnesium alloy ingot to 6mm, and coil it to obtain a magnesium alloy hot-rolled coil;
[0021] 4) Multi-pass cold rolling is carried out on the magnesium alloy hot-rolled coil, and the final cold rolling is rolled with a laser textured roll. The cold rolling reduction of the final pass is 8%, and the final rolling thickness is 0.8 mm,
[0022] 5) Heat the metal temperature to 280° C. in an anne...
Embodiment 2
[0024] A method for preparing a magnesium alloy matt thin strip for a mobile phone case, the preparation method comprising the following steps:
[0025] 1) In weight percentage, the magnesium alloy contains 0.8% of Mn, 0.8% of Si, 1.2% of yttrium, 0.8% of Cu, 0.8% of Zn and the rest of Mg are mixed and cast to obtain a magnesium alloy ingot ;
[0026] 2) Heating the magnesium alloy ingot to 615°C, and annealing for 4 hours with heat preservation and homogenization;
[0027] 3) Before hot-rolling, heat the magnesium alloy ingot to 470°C and keep it warm for 3 hours, then hot-roll the magnesium alloy ingot to 8mm, and coil it to obtain a magnesium alloy hot-rolled coil;
[0028] 4) Multi-pass cold rolling is performed on the magnesium alloy hot-rolled coil, and the final cold rolling is rolled with a laser textured roll. The cold rolling reduction of the final pass is 15%, and the final rolling thickness is 0.5 mm,
[0029] 5) Heat the metal temperature to 310° C. in an annea...
Embodiment 3
[0031] A method for preparing a magnesium alloy matt thin strip for a mobile phone case, the preparation method comprising the following steps:
[0032] 1) In weight percentage, the magnesium alloy contains 0.6% of Mn, 1.1% of Si, 1.0% of yttrium, 0.9% of Cu, 0.6% of Zn and the rest of Mg are mixed and cast to obtain a magnesium alloy ingot ;
[0033] 2) Heating the magnesium alloy ingot to 610°C, and annealing for 5 hours with heat preservation and homogenization;
[0034] 3) Before hot-rolling, heat the magnesium alloy ingot to 460°C and keep it warm for 4 hours, then hot-roll the magnesium alloy ingot to 7mm, and coil to obtain a magnesium alloy hot-rolled coil;
[0035] 4) Multi-pass cold rolling is carried out on the magnesium alloy hot-rolled coil, and the cold rolling of the final pass is rolled with a laser textured roll. The cold rolling reduction of the final pass is 10%, and the final rolling thickness is 0.6 mm,
[0036] 5) Heat the metal temperature to 300° C. ...
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