A computer control system for the concurrent control of shape and profile of strip from the head to the tail end in the finishing train of a hot strip mill has been developed and applied to a tandem six-high mill.

Keywords. Hot strip rolling, thickness profile, flatness. 1. INTRODUCTION Competition and customer denland have led to recent efforts in hot strip tandem rolling operations to improve the thickness profile and flatness parameters, whilst main­taining existing centre-line gauge tolerances and mate­rial quality (Ginzburg, 1989).

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A new feedforward control approach for the thickness profile of the strip in a tandem hot rolling mill is developed. In industry, the automatic gauge control (AGC) concept is widely used for thickness control. The AGC has the disadvantage that it does not consider known disturbances from upstream entities.

Irre- spective, it can be said that a hot-strip profile of low crown and low edge drop is essential for thinner gauge cold strip. 5. Conclusions The effect of the hot-coil profile on the flatness and the profile of the cold-rolled strip has been studied experimentally, from the results of which the following conclusions can be drawn.

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actual change in strip profile is calculated as the variation from the specified value. Then the profile prediction accuracy of high tensile strength steel, whose rolling force is higher than that of mild steel, was improved. The model was applied to online crown, flatness, and walking control in hot strip finishing mill.

HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in ple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip is a key element of steel production.

wedge (1c) profile types. Pic. 1 Basic types of imperfect strip profile. The rolling process experiences many other profile problems caused for example by the work rolls wear off or damage and it is impertinent to follow up all possible causes changing the transverse strip profile shape continuously to ensure the optimal roll usage.

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IMPROVEMENTS TO PORT TALBOT HOT STRIP MILL'S CAPABILITY TO PRODUCE PROFILE CRITICAL LOW CROWN STRIP STEEL. N. D. Beynon*†, M. Veryard* * Port Talbot Hot Mill, Corus Strip Products, Port Talbot Works, SA13 2NG. † Correspondence Author Abstract This paper presents the findings of a series of plant trials to reduce the strip profile obtained

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behavior of strip profile and flatness in hot rolling. Roll contour pattern of the backup and work rolls on different finishing stands is conducted in 1 700 mm hot strip mill.

Nov 12, 2015 · Maintaining Dimensional Quality in the Hot Strip Mill ... Read High Speed Archiving of Thickness and Profile Data in the Hot Strip Mill to learn more about how a high speed simultaneous profile gauge can provide critical dimensional information in real time for profile and shape control.

Achieving these objectives will allow hot mill operators to concentrate their efforts on the critical aspects of the rolling practices to eliminate many types of shape and profile problems, to reduce the shape and profile problems for their customers, and to enhance the consistency of the shape and profile quality produced on hot strip and ...

PROFILE & FLATNESS MEASUREMENT IN HOT AND COLD ROLLING MILLS Alec Shaw, Sales & Marketing IMS Asia Introduction A summary of the available methods of gauging profile and flatness in modern Hot and Cold Strip and Plate Mills is presented in .

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Thus roll bending is a controllable parameter to modify the roll gap and hence the crown and flatness of the strip rolled in the finishing mill of the hot strip mill. Conclusions. Roll stack deflection is an important issue in the determination of profile and flatness of a strip rolled in hot strip mill.