Hot continuous rolling coiler parallel side guide plate control method

A control method and side guide technology are applied in the field of parallel side guide control of a hot continuous rolling coiler, which can solve the problems of slow closing speed, long closing time, and easy occurrence of steel stuck accidents.

Active Publication Date: 2013-03-27
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, if the short-stroke opening 2L of the parallel side guide plate is too small, the steel head is more likely to be jammed.
The short-stroke opening 2L of the parallel side guide plate of a general hot-rolling coiler is ≥80mm, that is, one side L≥40mm. Although such an opening can avoid steel jamming accidents, it takes a long time to close, and the inner ring is tower-shaped. High defect rate
[0007] 2. Strip edge damage defects
But on the contrary, the short-stroke closing speed is too slow, and it is prone to inner ring tower defects

Method used

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  • Hot continuous rolling coiler parallel side guide plate control method
  • Hot continuous rolling coiler parallel side guide plate control method
  • Hot continuous rolling coiler parallel side guide plate control method

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Please combine figure 1 , image 3 , Figure 4 As shown, the hot rolling coiler parallel side guide plate control method of the present invention mainly comprises:

[0034] The method for controlling the parallel side guide plate of the hot continuous rolling coiler includes the following specific steps:

[0035] Firstly, strip steel detectors 9a and 9b are respectively provided at the middle and exit of the parallel side guide plate 3 to detect the running position of the strip steel 7 . The strip steel detectors 9a, 9b can be hot metal detectors or laser detectors.

[0036] Then a pressure sensor 10 is set on the pinch roller hydraulic cylinder, and the hydraulic pressure of the pinch roller 8 is also used to detect the running position of the strip steel 7 .

[0037] When the coiling starts, according to the str...

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Abstract

The present invention discloses a hot continuous rolling coiler parallel side guide plate control method, wherein control design of the parallel side guide plate is divided into four stages with the control method, and different speeds are adopted at different stages to control gradual closure of the side guide plate, such that an opening degree of the side guide plate is reduced so as to achieve purposes of effective inner ring tower shape defect reduction and effective strip steel edge portion damage defect reduction.

Description

technical field [0001] The invention relates to a technology for controlling shape defects of hot-rolled strip steel plates, and more specifically, relates to a method for controlling parallel-side guide plates of a hot-rolling coiler. Background technique [0002] The technological process of the hot tandem rolling mill is roughly divided into heating, rough rolling, finishing rolling, coiling and other processes. Among them, see figure 1 As shown, the side guide device of the coiler is arranged on the roller table 1, which is arranged symmetrically on both sides of the transmission side and the operation side. 5 and valve frame 6 and other components. On the one hand, the main function of the side guide device is to center the head of the strip steel 7 before it bites into the pinch roller 8 to prevent tower-shaped defects; on the other hand, after the head of the strip steel bites into the pinch roller, Implement a certain clamping force on the strip steel to ensure th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C47/34B21C47/02
Inventor 幸利军张仁其
Owner BAOSHAN IRON & STEEL CO LTD
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