On-line optimizing shearing method of roller milling large plate

Abstract

The invention discloses a on-line optimizing cutting method of rolling board, it uses flat surface detecting device and on-line ultrasonic detection equipment to roll shape of big board and detect inner defect before snip head, and using cutting line course computer to transform detected shape data of rolling big board and inner defect data to image and displayed on operation interface and setting cutting position and defect avoiding to accomplish cutting of big board. The on-line optimizing cutting method resolves effectively problem that rolling big board with defects on head and trail needs manpower detection or finished board possesses defect of head and trail, it fits for continuous operation, and increasing cutting production capability and steel lumber ratio.

Description

technical field

[0001] The invention relates to a forming process for smelting and rolling steel plates, and more specifically refers to an on-line optimized shearing method for rolling large plates. Background technique

[0002] In the production process of the steel plate in the steel industry, it is necessary to shear the large plate that is basically rolled and formed. However, defects such as internal cracks and shrinkage cavities in rolled slabs are mainly distributed at the head and tail of rolled slabs. At present, domestic and foreign thick plate manufacturers only consider the shear line in their shearing strategies for rolled slabs. The inspection data of the planar shape of the rolled slab before shearing does not consider whether there are internal and external defects (such as cracks, holes, etc.) on the rolled slab before shearing. In this way, it is possible to find that there are flaw detection defects on the finished board after cutting out the finished bo...

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