FIELD: metallurgy.
SUBSTANCE: invention refers to the manufacture of aluminium alloy tape. Aluminium alloy tape is manufactured by hot and/or cold rolling and consists of aluminium alloy of AA 5182, AA 6xxx or AA 8xxx type, provided that the finished, rolled tape of the aluminium alloy after degreasing shows an increase in the brightness value L* (ΔL) compared with non-degreased state more than 5 with colorimetric measurement of the surface in a colour space CIE L*a*b* using a standard light source of D65 and at an observation angle 10° with the exception of direct reflections in geometry 45°/0°, which is achieved by degreasing with the use of alkaline etching solution and subsequent acid wash of the aluminium alloy tape.
EFFECT: invention is notable for distinctly improved surface optics with distinct visual perception of lighter surface than conventional tapes made of aluminium alloy, consisting of the same aluminium alloy.
13 cl, 3 dwg, 1 tbl
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| SOLUTION FOR SIMULTANEOUS PICKING AND DEGREASING METALS | 0 |
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| UNIVERSAL AGENT FOR SOLID SURFACE CLEANSING | 1993 |
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