Process for marking the surface of a rolling mill
OwnerAdolphe Bragard, Jacques Halleux +2inventors
InventorsAdolphe Bragard, Jacques Halleux, Frederic Terreur, Jacques Defourny
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Abstract
A rolling mill is rotated while microscopic dents with peripheral ridges are formed by an intermittent laser beam in the presence of a gas jet directed at the beam impact zone. The output and the angle of incidence of the gas jet are controlled and microscopic dents are formed with a ridge on only part of their periphery. Steel sheet cold-rolled by means of such a roll has uniformly distributed hollows, each hollow partially surrounding an elevation.
Claims12
A process for marking the surface of a rolling mill roll having a longitudinal axis, comprising the steps of rotating the roll about its longitudinal axis and forming a multitude of microscopic dents are formed in the surface of the said roll by means of an intermittent laser beam in the presence of a gas jet directed at an impact zone of the said laser beam, each microscopic dent giving rise to a ridge, and controlling the output and the angle of incidence of the gas jet, whereby microscopic dents are formed with a ridge on only a part of their periphery.
Dependencies are inferred from the claim text.