摘要:
Brammen (2) durchlaufen einen Ofen (1) in einer Förderrichtung (y) und werden dort auf Walztemperatur aufgeheizt. Im Ofen (1) befinden sich jeweils mehrere Brammen (2). Nach dem Aufheizen werden die Brammen (2) in mindestens einem Walzgerüst (4, 6) in mindestens einem Walzstich gewalzt. Eine Ermittlungseinrichtung (8) nimmt Informationen (I1, I2, I3) entgegen, aus denen hervorgeht, welche Bereiche die Brammen (2) beim Durchlaufen des Ofens (1) in mindestens einer zur Förderrichtung (y) orthogonalen Richtung (x, z) relativ zueinander einnehmen. Sie ermittelt anhand dieser Informationen (I1, I2, I3) ohne vorherige Ermittlung einer jeweiligen Temperaturverteilung einer jeweiligen Bramme (2) oder ohne Verwertung einer ermittelten Temperatur einer jeweiligen Bramme (2) für mindestens einen Walzstich der jeweiligen Bramme (2) eine Anstellung (A) des diesen Walzstich ausführenden Walzgerüsts (4, 6). Die Ermittlungseinrichtung (8) berücksichtigt bei der Ermittlung der Anstellung (A) für die jeweilige Bramme (2) den von der in Förderrichtung (y) jeweils vorhergehenden und/oder nachfolgenden Bramme (2) relativ zur jeweiligen Bramme (2) eingenommenen Bereich. Sie führt die jeweilige ermittelte Anstellung (A) des Walzgerüsts (4, 6) einer Steuereinrichtung (5, 7) zu, welche das Walzgerüst (4, 6) beim Walzen der jeweiligen Bramme (2) unter Berücksichtigung der jeweiligen Anstellung (A) steuert.
摘要:
The present invention relates to a straightening system and a straightening method, which can conduct straightening in conformity with the shape pattern of a material, the straightening system comprising: a cooling device for spraying a cooling fluid in a predetermined pattern, in order to cool a material that has been heated in a heating furnace and has passed through a rolling device, with regard to a plurality of areas split in the transverse direction of the material; a straightening device for straightening the material that has passed through the cooling device; a flatness gauge for measuring the flatness of the material that has passed through the cooling device; and a control unit for receiving data regarding the flatness of the material from the flatness gauge and controlling the cooling device in response thereto, thereby improving the flatness of the material. This configuration is advantageous in that the flatness of the material can be improved by setting the interval between straightening rolls and the rate of straightening in conformity with the shape pattern of the material and by controlling the cooling flow rate with regard to the transverse direction of the cooling device.
摘要:
In addition to a control reference setup means calculating control reference for a roll position, an inter-stand strip thickness calculation means 111 predicting a strip thickness between stands 161, a roll position deviation calculation means predicting a roll position with using rolling results captured from a controlled object and calculating a deviation between the predicted roll position and an actual roll position, a strip thickness deviation calculation means 113 calculating a deviation between a target strip thickness, at a finish mill delivery side that is fetched from the control reference setup means, and an actual strip thickness obtained as a rolling result, and a roll position compensation amount calculation means 115 calculating a roll position compensation amount from a roll position deviation and a strip thickness deviation are provided, and the control reference setup means is configured to calculate the roll position using the calculated roll position compensation amount.
摘要:
The control by which a tension is generated on the material to be rolled on the entry side and the exit side of the rolling mill 1 and the control of the roll gap of the rolling mill are exerted in an appropriate manner, thereby suppressing the vibration of the rolling mill exit thickness. A transferring speed of the material to be rolled is controlled by: controlling a transferring speed of the material to be rolled that is inserted in the rolling mill 1 for a rolling operation by the rolling mill based on a thickness of the material to be rolled in the rolled state; and controlling either of a rotation of a reel to unwind and supply the material to be rolled with regard to the rolling mill and a rotation of the rolling mill 1.