| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling oil supply method to a rolling oil header which enables maintenance of a constant spray amount and widthwise uniformity of oil concentration, even in a case of spray trimming on both sides of the header adjusting to a width of a material to be rolled. SOLUTION: The rolling oil is constantly circulated through a sub-header 12 connected via return pipes 13 to the backside of a main header 10 having numbers of spray nozzles 11. A pressure gauge 20 measures pressure of rolling oil circulating in the header, and controls rotation rate of a rolling oil supply pump 17 connected to a tank 16. Thus, spraying amount is kept constant regardless of a number of the spray nozzles and oil concentration is maintained uniform. In this manner the spray trimming adjusting to the material width is made possible in a production line. COPYRIGHT: (C)2004,JPO
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