Method and installation for the production of an aluminum sheet with a textured surface

13:

• A process for producing a strip of aluminium or an aluminium alloy with a textured surface, comprising passing a cold rolled strip immediately after cold rolling through a roll gap of two textured rolls bearing a roughness pattern, wherein the roughness pattern is transferred to the surface of the strip as a result of the force of the textured rolls acting on the strip, and, thereafter, coiling the textured strip.

14:

• A process according to claim 13, including drawing the cold rolled strip through the roll gap wherein the texturing rolls are turned by tension applied to the strip.

15:

• A process according to claim 13, including drawing the texturing rolls.

16:

• A process according to claim 13, including sitting the texturing rolls at a constant roll force.

17:

• A process according to claim 13, including roughing the texturing rolls using the electrical discharge texturing (EDT) method.

18:

• A process according to claim 13, wherein the texturing rolls exhibit a roll grind comprising a plurality of parallel grooves distributed over the outer face of the rolls.

19:

• A unit for producing a cold rolled strip of aluminium or an aluminium alloy with a textured surface, comprising a cold rolling mill, and a texturing roll stand with texturing rolls immediately after the cold rolling mill, downstream in the direction of rolling (x).

20:

• A unit according to claim 19, wherein the texturing rolls are connected to a drive facility.

21:

• A Unit according to claim 19, wherein the texturing rolls in the texturing roll stand are supported by intermediate rolls and the intermediate rolls are supported by backing rolls.

22:

• A unit according to claim 21, wherein a plurality of sets of backing rolls are arranged over the width of the intermediate rolls.

23:

• A unit according to claim 21, wherein the backing rolls are connected to hydraulic pistons set at constant force.

24:

• A unit according to claim 19, wherein the texturing roll stand is mounted in the framework of the cold rolling mill.