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Cold rolling mill and method for cold roll forming metallic strip

A technology of cold rolling mill and metal strip, applied in the field of cold rolling metal strip

Inactive Publication Date: 2004-09-08
SMS DEMAG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a Stekel mill involves a hot rolling mill and therefore does not involve a cold rolling process

Method used

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  • Cold rolling mill and method for cold roll forming metallic strip
  • Cold rolling mill and method for cold roll forming metallic strip
  • Cold rolling mill and method for cold roll forming metallic strip

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] figure 1 An overview of an individual cold rolling stand 1 is shown, which has a strip accumulator 2 , 3 each in the entry area 4 and exit area 5 , each having a dancer roll 6 , 7 . The coiled strip 8 is unwound by means of a coiler 9 and fed into the rolling stand 1 in the direction of the arrow. After passing through the individual stands 1 , the strip is coiled up by means of a second coiler 10 . In the entrance area 4 and the exit area 5 are provided with a floating roller 6, 7 respectively, the structure of the floating roller is the same and in figure 2 shows its pressed state. In the embodiment shown, a single stand 1 itself comprises two backup rolls 11 , two intermediate rolls 12 and work rolls 13 , 14 . Any other arrangement of rolls in a single stand is also possible. Between the rolling stand 1 and the floating rollers 6 , 7 , for example, a marking unit 15 can also be arranged on the outlet side 5 of the strip production line.

[0016] figure 2 The ...

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PUM

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Abstract

The invention relates to a method for cold roll forming a metallic strip (8), a steel strip in particular, comprising a single frame (1), having means for adjusting a roll gap, a winding device (9) which is arranged upstream of the cold roll single frame for unwinding the strip (8), and a winding device (10) which is arranged downstream of the cold roll single frame (1) for winding the strip (8). The aim of the invention is to eliminate all problems connected to strip tension when the thickness of the strip varies and to increase the speed of the strip. To achieve this, a strip accumulator (2) is arranged between the upstream winding device (9) and the single frame (1) for controlling the mass flow and / or tension of the rolling process, particularly when flexible rollers are used.

Description

technical field [0001] The invention relates to a method for cold-rolling metal strips, especially steel strips, and a cold-rolling mill with a single stand with a roll gap adjustment mechanism, an A coiler for uncoiling and a coiler for strip coiling arranged downstream of the cold rolling stand. Background technique [0002] In the hitherto known single-stand cold rolling only an inlet strip with a narrow thickness tolerance is used, and the strip thickness reduction remains constant over the entire strip length. As soon as such preconditions are absent, it is estimated that even the strip tension is problematic and the strip speed is significantly limited. [0003] WO 99 / 55474 describes a Stekel rolling mill for hot rolling with at least one reversing rolling stand and coilers arranged upstream and downstream of the rolling stand. Between the coiler and the reversing mill stand, there is each a looper pick which provides the actual values ​​for tension control and mater...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B1/36B21B37/00B21B37/16B21B37/24B21B37/48B21B37/50B21B37/54B21B39/08B21B41/00B21C47/00B21C49/00
CPCB21B37/24B21B37/48B21B41/00B21B2037/002B21B1/36B21B37/54B21B39/08B21B37/50
Inventor M·施塔胡莱茨A·施塔胡莱茨-屈巴赫尔U·布罗克斯O·N·耶普森M·齐伦巴赫
Owner SMS DEMAG AG