Strip casting apparatus

A method of casting metal strip using a casting roll metal delivery system to deliver molten metal onto the surface of the casting roll and roll cleaning brush apparatus to clean the casting roll surface, the method comprising the steps of:

• (i) rotating a main brushing device extending across the roll capable of tangentially engaging the peripheral longitudinal roll surface, (ii) rotating a second sweeper brushing device extending across the roll to engage the roll in advance of the main brushing device, the sweeper brushing device comprises an elongate rotatably driven barrel brush extending across the roll surface of the casting roll, (iii) engaging the roll in advance of the position of engagement of the main brushing device wit the second sweeper brushing device independent of the engagement of the main brushing device with the casting roll, (iv) driving the sweeper brush to rotate in a direction opposite to the surface movement of the casting roll, (v) rotating the main brushing device mounted on a mounting frame about its longitudinal axis to engage with the casting roll at least during production of a casting run, (vi) moving the main brush into engagement with the casting roll during production of the casting run, and (vii) separately moving the sweeper brush toward the casting roll at the start and end of the casting run and away from the casting roll during the production part of the casting run.