Title

Automatic Roll Groove Alignment System (ARGA) for Bar and Rod Mills

Automatic Roll Groove Alignment System (ARGA) for Bar and Rod Mills

Authorship

M. CARTRIGHT, LIONEL

M. CARTRIGHT, LIONEL

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DOI

10.5151/2594-5297-LA6287

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Abstract

In conventional Rod and Bar Mills, the Roughing, Intermediate and Finishing stand rolls have multiple grooves cut into them in order to facilitate pass changes in finished section and for replacement of worn passes. The operation of changing passes takes valuable production time to accomplish and requires the running of trial billets to verify the alignment of the new groove and its position relative to the mill passline. With the patented Automatic Roll Groove Alignment System (ARGA), stands and passes can be changed rapidly and repeatedly with great precision, eliminating the need for trial billets and mill shutdown, for some applications, during pass changes. Mill downtime, due to groove changes, is converted to productive time, increasing mill productivity to provide for a quick pay back. This paper describes the requirements, equipment changes, operation and performance of a recent installation.

In conventional Rod and Bar Mills, the Roughing, Intermediate and Finishing stand rolls have multiple grooves cut into them in order to facilitate pass changes in finished section and for replacement of worn passes. The operation of changing passes takes valuable production time to accomplish and requires the running of trial billets to verify the alignment of the new groove and its position relative to the mill passline. With the patented Automatic Roll Groove Alignment System (ARGA), stands and passes can be changed rapidly and repeatedly with great precision, eliminating the need for trial billets and mill shutdown, for some applications, during pass changes. Mill downtime, due to groove changes, is converted to productive time, increasing mill productivity to provide for a quick pay back. This paper describes the requirements, equipment changes, operation and performance of a recent installation.

Keywords

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