A Method for Locating the Defect Position of Strip Steel Vibration Marks
A defect position and positioning method technology, which is applied in the direction of length measuring device, metal processing equipment, metal rolling, etc., can solve the problems of recording and inability to locate the defect position of strip steel vibration marks, so as to reduce the workload and avoid the sealing of the whole coil Effect
Active Publication Date: 2017-08-25
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0008] The purpose of the present invention is to provide a method for locating the defect position of the strip steel vibration pattern, which solves the problem that the position of the strip steel vibration pattern defect cannot be accurately positioned and recorded in the prior art means
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[0051] see figure 1 , figure 2 , the method of the present invention is specifically described below by taking the production line layout of the 1730 five-tandem rolling mill as an example.
[0052]The five-tandem rolling mill includes stands 1# to 5# from No. 1 to No. 5, and the 5# exit of No. 5 stand is equipped with a plate-shaped roll 1, a pinch roll 2, a coil shearer 3, and a coiler 4 in sequence.
[0053] A. Set the strip length L between the exit of No. 5 rolling mill and the coil shearing machine 0 , set the strip length L between each rack 12 , L 23 , L 34 , L 45 , set the vibration alarm reference value, set the pulse equivalent P of the plate type roller encoder x ;
[0054]
[0055] Among them, D is the diameter of the shape roller; P is the resolution of the shape roller encoder;
[0056] L in the step A 0 = L 1 +L 2 +L 3 , including three parts, which are the distance L between the outlet of the five racks and the plate roll 1 1 , the distance L ...
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A positioning method for positions of a vibration mark defect of strip steel comprises the steps that (a) parameters are set initially, and the parameters comprise the length of the portions, between outlets of rolling mills and a drum type shear, of the strip belt, the pulse equivalent of a plate roller coder, and a vibration alarm reference value; (b) vibration signals of all the rolling mills, shearing signals, rolling reduction information of all the rolling mills, steel reel information, pulse signals of the plate roller coder are collected; (c) vibration energy values of all the rolling mills are calculated according to the vibration signals, the equivalent length of the strip steel between machine frames is calculated according to the rolling reduction information, and the number of accumulated pulses of the strip steel at the current moment is counted according to the pulse signals of the coder; (d) vibration alarm judgment is conducted; (e) the initial position and the end position of a vibration mark defect are recorded; and (f) vibration mark defect information is recorded and uploaded. By means of the positioning method, the positions of the strip steel defect caused by vibration of all the machine frames at any moment can be accurately calculated according to the plate roller coder information and the rolling reduction information of the rolling mills.
Description
technical field [0001] The invention belongs to the field of strip steel surface defect detection in the strip steel production process of metallurgical enterprises, and in particular relates to a positioning method for the position of the strip steel vibration pattern defect. Background technique [0002] Rolling mill vibration is one of the ubiquitous problems in the rolling process, which brings serious problems to production. The most prominent manifestation is the surface vibration marks caused by rolling mill vibration. and other serious adverse effects. [0003] Due to the complexity of the causes of rolling mill vibration, experts and researchers from all over the world are devoted to the research of rolling mill vibration, trying to reasonably explain the possible causes of rolling mill vibration and propose effective countermeasures for vibration, but so far, there is no particularly effective The methods or measures can fundamentally solve the vibration problem o...
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IPC IPC(8): B21B38/00
Inventor 陈孝明全基哲李山青尤天星
Owner BAOSHAN IRON & STEEL CO LTD