Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1980-11-25
1983-02-15
Husar, Francis S.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 13, 72200, 432 11, 266 87, 266 96, F27B 940
Patent
active
043733646
ABSTRACT:
A temperature controlling method for heating, with a heating furnace having at least one heating zone provided with a controllable heating means, materials charged into the heating furnace such that an aimed temperature of the material is reached by the time when the materials leave the heating furnace. The characteristic feature of the invention resides in that the instructions for changing the operating condition of the heating furnace in response to a change in the rolling condition of the rolling line connected to the heating furnace is treated as a change in the period of stay of the material in the heating furnace. In the controlling system in accordance with the invention, determination of the material temperature rise pattern in response to the change in the staying period of the material in the furnace is made to minimize the supply of fuel to the heating means, and the set temperature of each heating zone is calculated from the thus determined temperature rise pattern. The temperature of the furnace is made in accordance with this set temperature through the control of the heating means. This method effectively applies particularly to the case where there is a change of rolling amount per unit time in the rolling line, change of the suspension time for roll exchange and lot change or the like.
REFERENCES:
patent: 3548171 (1970-12-01), Kodz
patent: 3604695 (1971-09-01), Steeper
patent: 4004138 (1977-01-01), Morooka et al.
patent: 4255133 (1981-03-01), Tanifuji et al.
Morooka Yasuo
Tanifuji Shinya
Tanimoto Sunao
Hitachi , Ltd.
Husar Francis S.
Scherer Jonathan L.
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