Fried. Krupp Huttenwerke Ag

Heinz Koch

Bernhard Brams

Wilhelm Gorski

Manfred Pawlowicz

Manfred Grube

An apparatus and process for grinding out faults on the surface of a ferromagnetic workpiece includes the step of placing a grinding device on the workpiece, magnetizing the workpiece by a magnetizing device, sensing surface faults in the magnetized workpiece by first and second sensing elements placed above first and second check points and grinding the sensed surface faults of the magnetized workpiece by the grinding device. The workpiece is operatively and repeatedly transported in one direction with respect to the first and second elements and the grinding device, and repeatedly returned in a direction opposite to the first direction. The ground workpiece is tested for faults at the first and second check points, and the first and second checkpoints are arranged behind and in front of the grinding device, respectively, with respect to the opposite direction of movement of the workpiece. The workpiece is additionally ground in dependence of the fault detected at the first check point, and repeatedly ground until no further fault is detected at the second check point.

Process and means for grinding out faults in the surface of a work piece

A device and a process for continuous de-scaling of elongated metallic material, particularly steel. The material has front, center and end sections, and the process includes the steps of continuously moving the material in one direction, and shaping, particularly rolling the material, while the material center and end-sections are still subjected to the heat of a furnace, and the material has a plurality of successive areas in longitudinal direction to be de-scaled. The material is treated or de-scaled following the heating and prior to the forming thereof in predetermined cycles for a predetermined time at a predetermined degree at each of the successive areas, by spraying a fluid, particularly a liquid, on the material under high pressure. The de-scaling zone in the areas of the material is displaced in a direction opposite to the movement of the material at a relatively high velocity for the treatment time of the material to be as short as possible in relation to the degree of descaling to be accomplished.

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Sprockhovel, Germany

Heinz Koch