Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

On-line optimizing shearing method of roller milling large plate

A shear line and internal defect technology, applied in the direction of shearing devices, manufacturing tools, shearing machine control devices, etc., can solve the problem of not considering the internal and external defects of rolling large plates, interrupting the production rhythm of the shearing line, affecting the production line Shear efficiency and other issues, to achieve the effect of improving shear yield, increasing effective operation time, improving production capacity and steel yield

Active Publication Date: 2008-01-02
BAOSHAN IRON & STEEL CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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, regardless of 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 flaw detection defects on the finished board after cutting out the finished board through offline
[0003] If the steel plate is found to have internal defects by the on-line ultrasonic flaw detection equipment (UST) after shearing, the manufacturers either continue to cut out the finished plate and then add offline manual flaw detection to the finished plate, or directly go offline to conduct offline inspection of the rolled large plate. Manual flaw detection, but because the large plate has been sheared, the loss is irreparable at this time
[0004] For large rolled slabs with internal defects found in online flaw detection, if internal defects are found in off-line manual flaw detection after cutting out the finished slab, the finished slab will be judged inferior or scrapped, thus affecting the yield of the steel plate; When the slab is hoisted off the production line for offline manual flaw detection, it will interrupt the production rhythm of the shearing line and affect the shearing efficiency of the production line

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-line optimizing shearing method of roller milling large plate
  • On-line optimizing shearing method of roller milling large plate
  • On-line optimizing shearing method of roller milling large plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Figure 2 shows the equipment layout of the shearing line. It can be seen from the figure that the planar shape detection device PSG 11, online ultrasonic flaw detection equipment UST 12, cropping shears 13, double shears and Split cut 14, cut to length cut 15. Among them, the UST 12 is moved from the usual installation position, that is, the cut-to-length shear 15, to the front of the cutting head shear 13 and behind the PSG 11, which is a necessary means to realize this cutting optimization. Rolling slab 2 completes the shearing to finished plate 3 according to the flow process shown in Figure 1 on such a shearing line.

[0026] 1. First, roll the slab to the entrance roller table of the plane shape detection device PSG 11, and use the plane shape detection device PSG 11 to detect the plane shape of the large slab to be rolled to obtain the plane data of the rolled slab. The plane data is an edge coordinate value obtained by the plane shape detection device PSG 11 at ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/02B23D36/00
Inventor 李剑王建强石云峰
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products