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Continuous rolling strip surface quality inspection method and device

A technology of surface quality and inspection method, applied in the field of cold rolling, can solve the problems such as the inability to guarantee the surface quality and waste of the strip head, and achieve the effect of preventing batch quality accidents of strip and improving the qualification rate.

Active Publication Date: 2022-04-26
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology

Furthermore, when inspecting the surface quality of the strip, since only the tail of the strip is exposed after shearing, and the head of the strip has been rolled into the coil, only the tail of the strip can be inspected, and the integrity of the strip cannot be guaranteed. surface quality of the head
And because the inspection of the surface quality of the strip is usually separated by a certain number of steel coils, if the defects of the surface quality of the strip are not checked out in time, it will cause all the steel coils between the two inspections to be degraded as quality defect coils, resulting in waste

Method used

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  • Continuous rolling strip surface quality inspection method and device
  • Continuous rolling strip surface quality inspection method and device
  • Continuous rolling strip surface quality inspection method and device

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[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] The first embodiment of the present invention provides a method for inspecting the surface quality of continuous strip steel, which is applied to a continuous strip rolling production line. The steel strip will be coiled during continuous rolling to form a steel coil. The purpose of the present invention is to check the quality of the surface of the steel coil.

[0038] Such as figure 1 Shown, continuous strip surface quali...

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Abstract

The invention relates to the technical field of cold rolling, in particular to a method and a device for inspecting the surface quality of continuous rolling strip steel. The method includes: judging whether the current steel coil needs surface quality inspection; if the current steel coil needs surface quality inspection, according to the roll diameter of the work roll rolling the current steel coil and the current steel coil The reduction rate is to determine the target shear position in the position behind the strip weld of the current steel coil; based on the target shear position, the current steel coil is sheared, and the strip at the shear position Steel undergoes surface quality inspection. The invention delays the shearing, so that the exposed steel strip after shearing not only includes the tail of the current steel coil but also the head of the next coil of the current steel coil, so that not only the surface quality inspection of the steel tail can be carried out, but also the The surface quality inspection can be carried out on the head of the strip steel to prevent batch quality accidents of the strip steel and improve the pass rate of the product quality in the factory.

Description

technical field [0001] The invention relates to the technical field of cold rolling, in particular to a method and a device for inspecting the surface quality of continuous rolling strip steel. Background technique [0002] During the continuous production of the acid tandem mill, the steel strip is usually produced in coils and cut at the position of the weld by the weld tracking system. Furthermore, when inspecting the surface quality of the strip, since only the tail of the strip is exposed after shearing, and the head of the strip has been rolled into the coil, only the tail of the strip can be inspected, and the integrity of the strip cannot be guaranteed. The surface quality of the head. And because the inspection of the surface quality of the strip is usually separated by a certain number of steel coils, if the defects of the surface quality of the strip are not checked out in time, it will cause all the steel coils between the two inspections to be degraded as quali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B38/00B21B15/00
CPCB21B38/00B21B15/0007B21B2015/0014
Inventor 任新意高慧敏车鸿奎李冉徐海卫王松涛郑艳坤张潮时海涛刘玉起万军齐海峰秦涛
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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