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Process control of cold rolling mills
MEFOS − Stiftelsen för Metallurgisk Forskning.
1998 (Engelska)Ingår i: Scandinavian journal of metallurgy, ISSN 0371-0459, E-ISSN 1600-0692, Vol. 27, nr 2, s. 82-87Artikel i tidskrift (Refereegranskat)
Abstract [en]

The main objective of cold rolling is to reduce the thickness of hot rolled strips to the desired final thickness. The process control must reach the target for several other factors too, as regards geometrical, mechanical, chemical and surface properties. During recent decades, process control has taken advantage of new measurement devices, new control actuators and the rapid development of information technology. Automatic process control can improve the quality beyond what is possible by manual control. Today, rolling of flat products needs advanced process control to increase the productivity and to reduce the variations in the final properties. A typical cold rolling stand performs one step in a chain of processes in the cold rolling mill, which can include pickling, rolling, annealing, temper rolling and downstream processes. All these processes contribute to the final properties of the strips. When the main process or the main objective is well controlled, it is important to continue with the other processes. In continuous annealing furnaces, the temperature controls the mechanical properties, but temperature differences and bending around rollers change the flatness. Temper rolling needs the same flatness control as other cold rolling processes. Cooling and lubrication can affect several properties of the strips.

Ort, förlag, år, upplaga, sidor
1998. Vol. 27, nr 2, s. 82-87
Nyckelord [en]
Cold rolling, Control, Measurement, Process
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-12740Scopus ID: 2-s2.0-0032050616OAI: oai:DiVA.org:ri-12740DiVA, id: diva2:972932
Tillgänglig från: 2016-09-22 Skapad: 2016-09-22 Senast uppdaterad: 2017-11-21Bibliografiskt granskad

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