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US 10,166,583 B2Granted
Process for hot-rolling metallic hollow bodies and corresponding hot-rolling mill
AssigneeSMS group GmbH
InventorsHans-Joachim Pehle, Peter Thieven
Life of this patent
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Abstract
In order to optimize the lubrication of a rolling rod in a process for hot-rolling metallic, elongate hollow bodies (21) by means of the rolling rod (2), which is arranged in the hollow body and to which lubricant is applied before the hot-rolling operation, the lubricant is applied to the rolling rod in solid form.
Claims33
A method for hot-rolling a metallic, elongated hollow body, said method comprising:
- disposing a rolling rod in the hollow body;
- providing a solid lubricant as a lubricant film;
- applying the lubricant film in solid form to the rolling rod;
- and
- subsequently hot rolling the hollow body after the lubricant film is applied in solid form to the rolling rod;
- wherein a first roller disposed adjacent to the rolling rod presses the lubricant film onto the rolling rod;
- and
- wherein:
- a functional agent is provided as a functional agent film or as a functional agent sheet and the functional agent film or the functional agent sheet is applied in solid form to the rolling rod or to the lubricant film before the lubricant film is applied in solid form to the rolling rod.
6 more elements
A method for hot-rolling a metallic, elongated hollow body, said method comprising:
- disposing a rolling rod in the hollow body;
- providing a solid lubricant as a graphite lubricant sheet;
- applying the graphite lubricant sheet in solid form to the rolling rod;
- and
- subsequently hot rolling the hollow body after the graphite lubricant sheet is applied in solid form to the rolling rod;
- wherein a first roller disposed adjacent to the rolling rod presses the graphite lubricant sheet onto the rolling rod;
- and
- wherein:
- a functional agent is provided as a functional agent film or as a functional agent sheet and the functional agent film or the functional agent sheet is applied in solid form to the rolling rod or to the graphite lubricant sheet before the graphite lubricant sheet is applied in solid form to the rolling rod.
6 more elements
Dependencies are inferred from the claim text.