A system and method for judging thickness of pickled coil hot rolling process
A technology of hot rolling process and determination method, applied in metal rolling, metal rolling, rolling mill control devices, etc., can solve the problems of inability to realize differentiated automatic determination, cost waste, and late detection of abnormal thickness, so as to improve work efficiency and judgment accuracy, reducing production cost waste, and reducing the effect of manual query work
Active Publication Date: 2022-04-26
MAANSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0006] The purpose of the present invention is to overcome the problem of late detection of thickness anomalies in the determination of the thickness accuracy of hot-rolled steel coils in the prior art, which easily leads to cost waste, or the evaluation tolerance is relatively single, and the automatic determination of differentiation cannot be realized, or the determination accuracy is low , low operating efficiency, a system and method for judging thickness of pickling coil hot rolling process are provided
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0067] Take the coil number H20011360X as an example: after the hot coil is hot rolled, the third level of hot rolling receives the relevant information of the hot coil, and communicates it to the QMS management application platform, and at the same time triggers the QMS management application platform to request the hot rolling thickness curve from the data acquisition platform After the QMS management application platform receives the hot-rolled thickness curve of the data acquisition platform, it will be displayed on the QMS management application platform, and the quality factor of the pickling thickness over-tolerance of the current hot coil is calculated as "1" through the rules set by the quality factor.
[0068] It took a total of 20 minutes from the output of the hot coil to the completion of the calculation of the quality factor. Because the thickness fluctuation is small, it is relatively good, and the hot coil is judged to be qualified, which can better meet the requ...
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The invention discloses a thickness judging system and a judging method in the hot rolling process of pickling coils, belonging to the technical field of hot rolling. The thickness judging system of the present invention includes a hot rolling primary system, a thickness detection device, an encoder, a data acquisition machine and a QMS management application platform. The present invention imports the order information of relevant steel coils on the QMS management application platform, and according to the steel coil output The event information is differentiated configuration evaluation tolerance in the server of the QMS management application platform, and the steel coil thickness curve data collected on site is transmitted to the QMS management application platform in time. The thickness curve is analyzed and processed to automatically judge whether the thickness of the steel coil to be tested is qualified, thereby realizing the differentiated judgment of the thickness of products with different precision requirements, and the differentiated evaluation method can better meet the needs of actual production and judgment.
Description
technical field [0001] The invention belongs to the technical field of hot rolling, and more specifically relates to a thickness judging system and a judging method in the hot rolling process of pickling coils. Background technique [0002] With the advancement of technology and the development of hot-hot cooling technology for steel coils, the surface quality requirements for steel coils are relatively high. Thin-gauge pickled coil products to replace expensive cold-rolled annealed or galvanized products. However, the specifications of products processed by hot-strip cooling technology also need to meet the precision requirements close to those of cold-rolled products. For thin-gauge pickled steel coil products, the width accuracy can be achieved by trimming in the pickling unit to achieve high-precision requirements, while the control of thickness accuracy still depends on the control level of hot rolling. The pickling process basically affects the thickness of steel coil...
Claims
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IPC IPC(8): B21B37/00B21B37/16
CPCB21B37/00B21B37/165B21B2201/06B21B2261/04
Inventor 戴思源毛鸣张宇光张杨白丽杨王飞彭正波孙夺亮文亮石志仁何璕张成雨
Owner MAANSHAN IRON & STEEL CO LTD