2. Nitric acid weight loss corrosion test, sample exfoliation corrosion test before and after almost no change, the surface has not been corrosion, the grade is N (No appreciable attack), indicating good corrosion resistance of materials.
3. Welding performance test
After welding, the test measured 60mm thickness of 5083-O aluminum alloy sheet, 25mm thickness of 5083 H112 aluminum alloy sheet, 6mm thickness of 5083 H34 aluminum alloy plate tensile strength were 285Mpa, 284Mpa, 276Mpa, are greater than 275Mpa. Test results, surface welding, bending 180 degrees, bending 180 degrees are not cracking. The weld is fully welded and free of cracks and does not exceed the permissible slag or blowhole permitted by the accepted standards.