Heating – Processes of heating or heater operation – Treating an article – container – batch or body as a unit
Patent
1990-02-05
1991-04-09
Yuen, Henry C.
Heating
Processes of heating or heater operation
Treating an article, container, batch or body as a unit
432 12, 432 43, 432128, 432 49, F27D 300
Patent
active
050060619
ABSTRACT:
A method for bringing a plurality of steel slabs to rolling temperature uses a furnace having a controllable energy supply. To accommodate variation of slab temperature at entry, especially mixing of cold and hot slabs, at least one virtual slab corresponding to a group of the steel slabs is determined, and the energy supply is adjusted in dependence on the desired mean temperature at exit from the furnace of the virtual slab. Suitably the furnace has at least two zones each with an individually controllable energy supply, and virtual slabs are determined for the slabs in each zone. Then the energy supply in each zone is adjusted in dependence on the desired mean temperature at exit from the furnace of the virtual slab of that zone and preceding zones.
REFERENCES:
patent: 3385579 (1968-05-01), Peck et al.
patent: 4338077 (1982-07-01), Shibayama et al.
patent: 4368034 (1983-01-01), Wakamiya
patent: 4373364 (1983-02-01), Tanimoto et al.
patent: 4577278 (1986-03-01), Shannon
patent: 4606006 (1986-08-01), Kitao et al.
patent: 4606529 (1986-08-01), Tooch
Muysken Frans P.
Westdorp Rudy
Hoogovens Groep B.V.
Yuen Henry C.
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