Arbed S.a.

Jacques Metzdorf

Jean Liesch

Joseph Neu

Jean Redo

Andre Meyers

The geometry of rolling-mill rolls is monitored dynamically by projecting light between portions of the two rolls which are formed with circumferential grooves and the resulting light pattern is detected and compared with a pattern prior to start of the rolling operation.

Method of and apparatus for monitoring a dynamic condition of

In an eleven-step butterfly rolling process for producing inertial sheet piling, the upset grooving hitherto used in the fourth step is eliminated and replaced by one or more flat rolling steps intended to work the bulges at the edges of the flanges so as to impart a grain structure parallel to the flat rolled surfaces and thereby avoid cracking after the edge portion has been bent into hook configuration.

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Esch, Luxembourg

Jacques Metzdorf