Sizing-stand group
AssigneeMannesmann Aktiengesellschaft A Corp. of the Federal Republic of Germany
InventorKarl Backhaus
Life of this patent
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Abstract
A method and an apparatus for obtaining narrow tolerances of accuracy to pe and size of a rolled product rolled in a wire mill and/or bar mill including at least two sizing stands of high stiffness wherein, with the exception of the last stand, the stands are adjustable under load. The stands cooperate with a device for determining the geometrical data of the rolled product, as well as the relevant rolling operation data. The device is mounted in front of the next-to-last stand for detecting the geometrical data of the rolled product before it enters into the next-to-last stand. The measured values are processed with a sizing model for obtaining a desired exact profile shape in the last roll stand in a computer for forming a signal which is used for adjusting the next-to-last stand.
Claims8
A method for obtaining narrow tolerances of accuracy to shape and size of a rolled product, rolled in a wire mill or a bar mill, including at least two successively arranged sizing stands of high stiffness, wherein the stands include stands that are adjustable under load and a last stand that is not adjustable under load, the method comprising:
- measuring geometrical data of the rolled product and relevant rolling data before the rolled product enters the next-to-last sizing stand:
- processing the measured data in a computer, forming in the computer a signal from stored data and the measured data by means of a sizing model for obtaining a desired exact profile shape in the last sizing stand:
- and utilizing the signal for adjusting at least the next-to-last sizing stand.
An apparatus for obtaining narrow tolerances of accuracy to shape and size of a rolled product in a wire mill or a bar mill, including at least two successively arranged sizing stands of high stiffness with single-groove rolls, wherein the stands include stands that are adjustable under load and a last stand that is not adjustable under load, the apparatus comprising:
- a measuring device mounted in front of the next-to-last stand for measuring geometrical dimensions of the rolled product before it enters into the next-to-last:
- and means for processing the measured geometrical dimensions of the rolled product in a computer with a sizing model for obtaining a desired exact profile shape in the last sizing stand, wherein the processing means includes a means for forming a signal for adjusting at least the next-to-last sizing stand.
Dependencies are inferred from the claim text.