Pickling coil hot rolling process thickness judgment system and judgment method

Abstract

The invention discloses a pickling coil hot rolling process thickness judgment system and judgment method, and belongs to the technical field of hot rolling. The thickness judgment system comprises ahot rolling primary system, a thickness detection device, an encoder, a data acquisition machine and a QMS management application platform. Order information of related steel coils is imported into the QMS management application platform, differentiated tolerance configuration evaluation is carried out in a QMS management application platform server according to steel coil output event information, steel coil thickness curve data collected on site are transmitted to the QMS management application platform in time, a collection function is developed on the QMS management application platform, quality factors are formulated to analyze and process a thickness curve, and whether the thickness of steel coils to be detected is qualified or not is automatically judged, so that thickness differentiation judgment of products with different precision requirements is realized, and the differentiated evaluation mode can better meet the requirements 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...

AI Technical Summary

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