Variable convexity working roll for rolling plates, sheets and strips

A work roll and variable crown technology, applied in the direction of rolls, metal rolling, manufacturing tools, etc., can solve the problem that the no-load roll gap does not have the ability to control the high-order crown, the crown adjustment ability declines rapidly, and the crown control Insufficient ability and other problems to achieve the effect of enhancing the overall shape control ability
CN101569894AInactive Publication Date: 2009-11-04UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2009-11-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a variable convexity working roll for rolling plates, sheets and strips, and a roll shape curve thereof adopts a composite function. The special roll shape curve form of the working roll can balance the secondary convexity control capability of wide and narrow strip steel at the same time of ensuring the secondary convexity regulation capability of no-load roll gap and the shift amount of a rolling roll to show an approximate linear relationship. Compared with the continuous variable convexity roll shape technology, the variable convexity working roll improves the control capability to the narrow strip steel under the situation of also having stronger convexity control capability to the strip steel with wide specification; in addition, the variable convexity working roll further has the control function to high-order wave shape, thereby enhancing the whole plate shape control capability of a rolling machine and meeting the technical requirements on high-precision rolling of plates, sheets and strips.
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Description

Technical field

[0001] The invention relates to a work roll shape used for strip shape control in strip steel production, in particular to a variable crown work roll shape that balances the control ability of wide and narrow strip steel, and belongs to the strip shape in the field of strip rolling. Roller design in control technology. Background technique

[0002] At present, the variable crown roll shape widely used in the field of flatness control includes: continuous variable crown roll shape CVC and SmartCrown roll shape.

[0003] (1) Continuously variable crown roll shape CVC

[0004] At the end of the 1970s, German SMS company (SMS) took the lead in developing a continuously variable crown (CVC) roll shape. After nearly 30 years of research and development, the CVC roll shape has become the most important plate in the field of strip rolling. One of the form control methods. This technology can continuously change the unloaded roll gap crown through the relative axial moveme...

Claims

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