Strip steel leveling process method and production line
A process method and strip technology, applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve problems such as disappearance and weakening, and achieve the effect of adjustment and optimization of process parameters
Active Publication Date: 2021-06-25
SHOUGANG CORPORATION
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Problems solved by technology
[0005] The embodiment of the present application solves the technical problem in the prior art that the plate shape of the flattened steel strip is temporarily weakened or disappears temporarily during the coiling process by providing a strip steel smoothing process method and production line, and realizes strip steel flattening. The shape problem of steel will not be temporarily weakened or disappeared during the coiling process, and the technical effect can be found in time by visual inspection
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[0030] The embodiment of the present application solves the technical problem in the prior art that the shape of the flattened steel strip is temporarily weakened or temporarily disappeared during the coiling process by providing a steel strip leveling process.
[0031] The technical solution of the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0032] Carrying out the pre-sequence process on the slab, and after the strip steel is made, the strip steel is smoothed by using a skin-passing unit with a coiling tension interval, wherein the coiling tension interval is based on the critical tension of the strip steel f c and the upper limit tension F of the skin pass unit max and lower limit tension F min The interval set by the comparison result.
[0033] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in...
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Abstract
The invention discloses a strip steel leveling process method and a production line. The method comprises the following steps: performing a pre-process on plate blank to prepare strip steel; adopting a leveling unit with a rolling tension interval to level the strip steel, wherein the rolling tension interval is an interval set according to compared results between critical tension Fc of the strip steel and upper limit tension Fmax and lower limit tension Fmin of the leveling unit. The method and the production line provided by the invention are used for solving the technical problem that actual plate shape problem cannot be found through visual observation as the plate shape problem is weakened for a time being or disappears for a time being in the rolling process of the levelled strip steel, realizes the technical effects that temporary weakening or disappearing of the plate shape problem of the strip steel is avoided in the rolling process, and the plate shape problem can be timely found through visual observation.
Description
technical field [0001] The invention relates to the technical field of hot continuous rolling, in particular to a strip steel smoothing process method and a production line. Background technique [0002] For hot-rolled thin-gauge products, especially high-strength products, it is difficult to control the stability and flatness during the finishing rolling process, which is affected by various factors such as equipment accuracy, control parameter setting, and on-site personnel operation level. In addition, during the cooling of the strip after rolling and the cooling of the coil, the shape of the strip will change again. Therefore, it is an important process to improve the quality of the strip to further improve the formation of the strip through the skin pass unit. At present, most domestic leveling units are not equipped with related instruments for plate shape detection, and the plate shape after leveling mainly depends on visual inspection. [0003] However, in the proc...
Claims
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IPC IPC(8): B21D1/00B21C51/00
CPCB21D1/00B21C51/00
Inventor 李旭东孙翼洲陈飞唐婧董立杰王淑志孙力娟王秋娜辛艳辉张月林
Owner SHOUGANG CORPORATION