Precision online detecting method of rolling mill equipment

A detection method and rolling mill technology, applied in metal processing equipment, length measuring devices, metal rolling, etc., can solve the problem of inability to distinguish vertical equipment accuracy or rolling mill circumferential equipment accuracy.

Active Publication Date: 2017-07-25
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

The stiffness of the rolling mill can only detect the accuracy of the entire rolling mill equipment, and cannot distinguish the accuracy of the equipment in the vertical direction or the accuracy of the circumferential equipment of the rolling mill

Method used

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  • Precision online detecting method of rolling mill equipment
  • Precision online detecting method of rolling mill equipment
  • Precision online detecting method of rolling mill equipment

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0055] An online detection method for rolling mill equipment accuracy involved in the present invention includes the following steps

[0056] 1. After the roll gap is leveled, carry out the zero adjustment of the roll gap. The two sides (WS, DS) are simultaneously pressed down to the rolling force and 500t±10t. After two adjustments, the following two conditions are met at the same time:

[0057] a), the sum of the rolling forces on both sides is (F WS +F DS )=500t±10t,

[0058] b) The rolling ...

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Abstract

The invention discloses a precision online detecting method of rolling mill equipment. The precision online detecting method comprises the following steps of zero adjusting carried out after roll gap leveling, rolling mill speed control, rolling force collection and data processing and equipment precision judgment. The precision online detecting method has the beneficial effects that different zero adjusting rolling force curves are compared, the two-side rolling force deviation values during forward rotation and reverse rotation of a rolling mill are compared, whether the equipment precision in the vertical direction of the rolling mill or the equipment precision in the circumferential direction of the rolling mill is poor is judged, and correct information is provided for equipment maintenance personnel to replace and maintain the equipment.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to an online detection method for rolling mill equipment precision. Background technique [0002] The precision of the rolling mill equipment directly affects the stability of the rolling process and the shape of the plate. The accuracy of rolling mill equipment has three latitudes, one is the equipment accuracy in the vertical direction, the other is the equipment accuracy in the circumferential direction of the rolling mill, and the third is the equipment accuracy in the axial direction of the rolling mill. Among them, the equipment accuracy in the vertical direction and the equipment accuracy in the circumferential direction of the rolling mill have the greatest impact on the rolling stability. [0003] Such as figure 1 and 2 As shown, the equipment in the rolling mill archway includes: the surface of the frame bottom beam 1, the lower equalizing plate of the press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B38/00B21B38/08
Inventor 张仁其吴海飞
Owner BAOSHAN IRON & STEEL CO LTD
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