Method and device for controlling rolling mill to roll finished steel material
A technology for rolling finished products and steel products, which is applied in the field of automatic control of the rolling process, and can solve problems such as direct rolling of finished steel products that cannot meet weight requirements
Active Publication Date: 2018-03-20
NORTHEASTERN UNIV LIAONING
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Problems solved by technology
[0005] The invention provides a method and device for controlling the rolling of finished steel by a rolling mill to solve the problem in the prior art that the finished steel cannot be directly rolled according to the weight requirement
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[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0026] It should be noted that the terms "fir...
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The invention discloses a method and a device for controlling a rolling mill to roll a finished steel material. The method comprises the following steps: acquiring information of a virtual welding line, wherein the information of the virtual welding line includes the thickness of each roll of to-be-rolled steel material, the thickness of the finished steel material and / or the width of each roll to-be-rolled steel material; determining the weight of the finished steel material according to the information of the virtual welding line; determining the virtual welding line of the finished steel material according to the weight of the finished steel material, wherein the virtual welding line is a cutting position of the finished steel material on each roll of to-be-rolled steel material; determining control parameters according to the distance from the virtual welding line and a joint point, wherein the joint point is a joint position of the inlet region of the rolling mill and a rolling mill region; and changing the specifications of each roll of to-be-rolled steel material according to the control parameters to obtain the finished steel material, wherein the finished steel material isa steel material with a preset specification and a preset weight. The method disclosed by the invention can solve the problem that the finished steel material cannot be rolled directly according to weight requirements, and can be used for obtaining the finished steel material with the preset specification by direct rolling according to the preset weight without subsequent slitting treatment, so steel materials and time are saved.
Description
technical field [0001] The invention relates to the technical field of rolling process automatic control, in particular to a method and device for controlling rolling of finished steel products by a rolling mill. Background technique [0002] In the prior art, the continuous cold rolling of strip steel is to control the rolling mill to process the strip steel according to the predetermined thickness and width specifications of the finished steel product. If it is necessary to change the specification of the new finished strip steel product, dynamic specification change is required. Realize the conversion of steel type, thickness or width and other specifications of two adjacent coils of strip steel. [0003] Usually small and medium-sized iron and steel enterprises have small batches of scheduled finished products, but the specifications of the scheduled finished products vary a lot. It often happens that the same coil of strip steel to be processed needs to be rolled into f...
Claims
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IPC IPC(8): B21B1/28B21B37/00B21B37/16
CPCB21B1/28B21B37/00B21B37/16
Inventor 李旭张欣陈树宗张浩宇王晓宇王青龙张殿华梁锦堂高磊高增伟
Owner NORTHEASTERN UNIV LIAONING