Roll casting machine crown control

Details Roll casting machine crown control Roll casting machine crown control

1991-06-06

1993-07-20

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164428, 164443, 164448, B22D 1106, B22D 11124

Patent

active

052284972

ABSTRACT:
The crown of roll cast sheet is regulated by controlling the crown of the work rolls in a roll casting machine producing the sheet. The work roll crowns are controlled by providing differential cooling between the center and the ends of the rolls. The work rolls contain inlet and outlet water plenums which are connected to channels within the perimeter of the rolls. Water flow to the center and ends of the work rolls is controlled by movable sleeves within the plenums. In a first position of the sleeves, water is permitted to flow proportionally through all areas to the work rolls providing an even removal of heat from the rolls. In a second position, a greater portion of water flows through the center portion of the work rolls resulting in increased removal of heat from the center areas, reducing the temperature of these areas and the crowning of the of the work rolls. The sleeves may be moved incrementally between the first and second positions providing control over the size of the work roll crowns and the resulting crown of the sheet produced by the rolls.

REFERENCES:
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patent: 4088295 (1978-05-01), Medovar et al.
patent: 4285388 (1981-08-01), Sevastakis
patent: 4489772 (1984-12-01), McLane et al.
patent: 4493361 (1985-01-01), Sevastakis
patent: 4671340 (1987-06-01), Larrecq et al.
patent: 4706734 (1987-11-01), Sevastakis
patent: 4721154 (1988-01-01), Christ et al.
patent: 4802528 (1989-02-01), Terrasse
patent: 4825935 (1989-05-01), Tozawa et al.

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