Daisywheel convector plate for batch coil annealing furnace

Details Daisywheel convector plate for batch coil annealing furnace Daisywheel convector plate for batch coil annealing furnace

1995-02-01

1997-12-16

Bennett, Henry

Heating

Accessory means for holding, shielding or supporting work...

For annular work

432205, C21D 900

Patent

active

056977786

ABSTRACT:
An improved convector plate is provided for a batch coil annealing furnace. The plate includes a top annular plate, an identical bottom annular plate and an annular diverter plate in between. A plurality of slotted openings are provided in the top and bottom plates which extend radially outwardly from a first imaginary circle spaced from the inner peripheral edge of the top and bottom plates to an imaginary second circle spaced inwardly from the top and bottom plate's outer peripheral edge. The annular diverter plate is radially centered within the slotted openings. When the convector plate is placed between the edges of two coils, furnace atmosphere flows into the convector plate in the space between the top and bottom plates and is directed by the diverter plate into the slotted openings which are now covered by the coil edges thus establishing improved convective heat transfer rates with the coil edges resulting in shorter annealing process times.

REFERENCES:
patent: 3140743 (1964-07-01), Cone
patent: 4275569 (1981-06-01), Mayers et al.
patent: 4310302 (1982-01-01), Thekdi et al.
patent: 4502671 (1985-03-01), Omura
patent: 4846675 (1989-07-01), Soliman
patent: 5295822 (1994-03-01), Hemsath

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