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Method for reducing rolling gap of finish rolling inlet

A rolling gap and entrance technology, which is applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problems that the long rolling gap affects the production efficiency of the rolling mill

Pending Publication Date: 2022-05-27
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for reducing the rolling gap at the entrance of the finish rolling mill, and solves the technical problem in the prior art that the intermediate billet at the entrance of the finish rolling mill swings back, causing the rolling gap to be too long and affecting the production efficiency of the rolling mill

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  • Method for reducing rolling gap of finish rolling inlet

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship, motion situation, etc. between the components under a certain posture. If the specific posture changes, the directional indication Change accordingly.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of...

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Abstract

The invention belongs to the technical field of steel rolling, and discloses a method for reducing a rolling gap at a finish rolling inlet, which comprises the following steps: when a first hot metal detector detects an intermediate billet, controlling the moving speed of the intermediate billet to be reduced from the running speed 5.2 m / s of a delay roller bed to the speed 1.1 m / s of a flying shear inlet roller bed, and pre-swinging the flying shear to a starting position; when the second hot metal detector detects the intermediate billet, the head position of the intermediate billet is calculated and positioned according to the flying shear inlet roller way speed 1.1 m / s, and the flying shear executes the head cutting action of the intermediate billet after the intermediate billet moves by 5 m; and after the end of the intermediate billet is cut, if the finishing mill meets conditions, the intermediate billet enters the descaling machine, is delayed for 8 seconds, is slowed down to 0.8 m / s from 1.1 m / s, and then enters the finishing mill. According to the method for reducing the rolling gap of the finish rolling inlet, the rolling gap of the finish rolling inlet can be effectively reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for reducing the rolling gap at the entrance of finishing rolling. Background technique [0002] The rolling gap at the entrance of the finishing mill directly affects the production efficiency of the rolling mill. If the rolling gap is too large, it will increase the production costs such as power consumption and fuel consumption, and indirectly affect the environmental protection control. The specific performance is: after the intermediate billet is cut, if the rolling mill does not meet the conditions, the intermediate billet will start to swing back and swing back to the flying shear inlet. When the rolling mill is qualified, it will run from the flying shear inlet to the descaling inlet, resulting in a waste of time. SUMMARY OF THE INVENTION [0003] The invention provides a method for reducing the rolling gap at the entrance of finishing rolling, and solves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B39/16B21B45/08B21B37/46B21B38/00B21B39/02
CPCB21B39/16B21B38/006B21B37/46B21B39/02B21B45/08Y02P70/10
Inventor 胡亮周政杨孝鹤童燕成高文刚葛金朋胡俊杰张泽朋刘靖群王超
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD