Dieselstraße 55, D Heiligenhaus Innovative measuring technology for slab dimension and slab surface measurements

Transcription

1 Dieselstraße 55, D Heiligenhaus Innovative measuring technology for slab dimension and slab surface measurements

2 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 2

3 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 3

4 4 Concept CSP Plant Detection of local occurrences of surface defects, e.g. on CSP slabs and on hot strip Classification of the surface defects by 2D and 3D features Correlation with casting and rolling parameters to derive technological countermeasures Estimation of the severity of the defect and the possibility of removing it Correlation slab-hot strip Change in the Rolling & Casting Process (SMS Siemag) Slab Inspection Analysis Strip Inspection Technological Data

5 5 Concept 1. Crack Longitudinal Crack (LC) 1 Crack Longitudinal Crack (LC) Origin in process cast/roll direction - Continuous Caster - Mould (Mould level) Other designations - Caster Fold appearance on thin slab hot strip top side bottom side cast/roll direction top side bottom side - Continuous Caster - Mould (Mould level) Causes and key words - Heat transfer Caster-Fold - Primary cooling - Solidification - Chemistry (C, Mn, S, Si contents) - Steel grade (Peritectic) - Liquid steel temperature - Liquid steel treatment - Appropriate casting powder 500mm 500mm LC on thin slab surface - Magnification Hot strip defect size range in cast/roll direction Caster-Fold [mm] across cast/roll direction [mm] 300 -x000 <1.0

6 6 Concept 2. Non Metallic Inclusion - NMI 2 Non Metallic Inclusion - NMI cast/roll direction NMI on thin slab surface, entrapped mould powder Origin in process Other designations - Shells, Seams, Slivers, Scab (open) Alumina appearance on thin slab hot strip top side bottom side cast/roll direction top side bottom side - Melt Shop - Ladle Furnace - Caster Causes and key words - Steelmaking treatment Caster-Fold - Steel cleanliness - Ca-treatment - Deoxidation - Reoxidation - Slag carry over - Clogging 200mm 200mm Hot strip defect size range in cast/roll direction [mm] Caster-Fold across cast/roll direction [mm]

7 7 Concept 3 3. Star Cracks Star Cracks Origin in process cast/roll direction - Continuous Caster - Mould Star cracks on thin slab Other designations - Micro Cracks appearance on thin slab hot strip top side bottom side top side bottom side Causes and key words - Cu-pick up from Cu-plate mould Caster-Fold cast/roll direction cast/roll direction 10mm 10mm Star cracks on thin slab / in roll gap F1 Hot strip defect size range in cast/roll direction [mm] across cast/roll direction [mm] Caster-Fold

8 8 Concept 4 4. Crack Edge Crack (EC) Crack Edge Crack (EC) Origin in process cast/roll direction cast/roll direction Other designations - Corner crack, Edge breaks appearance on thin slab hot strip top side bottom side cast/roll direction top side bottom side - Continuous Caster - Bending area Causes and key words - Chemistry (Al, Nb, V, B, N and C) Caster-Fold - Precipitation (e.g. Nb{N, C}, BN, AlN) - Steel grade (e.g. microalloyed, B alloyed) - Slab edge temperature - Deformation process Roll gap stand F1 Edge crack on thin slab surface 500mm Hot strip defect size range in cast/roll direction [mm] Caster-Fold 500mm across cast/roll direction [mm]

9 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 9

10 10 Product Spectrum Slab Inspection Analysis Strip Inspection Technological Data

11 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 11

12 12 Area scan camera Projector Line projection Triangulation Projection field on thin slab

13 13 Measuring concept Camera 1 Projector Camera 2 Slab

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15 15 TKN Bochum casting plant Measuring System Projection Field on Slab

16 16 Camera view 3D Area 2D Area

17 17 3D 2D

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19 19 Defect (Casting powder inclusion) 3D 2D

20 20 Defect (Mechanical impression) 3D 2D

21 21 Defect (Irregular oscillation marks) 3D 2D

22 22 Defect (Mechanical impression) 3D 2D

23 23 Height Profile over the slab width

24 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 24

25 25 Area scan camera Line scan camera Area/Line scan lighting unit

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28 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 28

29 29 Slab Dimension Measuring Task Surface inspection top side and bottom side Width and edge contour Slab thickness profile Slab length Slab volume / weight

30 30 Slab Dimension Salzgitter AG Dimensional measurement of slabs before the furnace in a hot strip mill

31 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 31

32 32 Quality Management System Quality data management system for integrated steel plants Collection of all Quality relevant data Integration of Process Data Integration of Surface Inspection System Data Post Processing for Surface Inspection Data Extended Evaluation and Analysis Tools Quality Test and Decision Support with used defined rules to compare the quality data with the requirements

33 33 Quality Management System Overview Surface Data Measuring and Technologie Data SIS Post Processing Message Receiver (On site) Data Viewer (Offline Data Evaluation) Detailed Data Display and Reporting MEVinet-Q Central DB Quality Test (Online Evaluation Service) Decision Rules Statistics and Massevaluation IMS DCL Service and Material Tracking

34 Quality Management System Surface Analyses Easy and flexible selection of slabs and strips by material, dimensions, production period, etc. Various methods for defect data conversion in relation to slabs and strips: Number of defects Total defect area Defect length area Affected strip lengths, periodic defects Total severity of individual defects Inter-strip analyses: Position of the defects Defect class distribution Quality trend over time, material, dimensions Comparative display of multiple inspections within the production process 2011 surcon GmbH 34

35 36 Quality Management System Quality test rules including surface inspection Analysis Change in the Rolling and casting Process

36 Quality Management System Blade Center 5 Blades 2 Quad-Core CPUs per Blade 32 GB Live-View memory coil storage Fiber Channel SAN USV Software Microsoft Server 2008R2 Operating System MS-SQL Server 2008R2 Database Camera GigE Vision / GenICam 1600x1200 Pixel per Camera (2 Mpixel) 2011 surcon GmbH 37

37 Agenda Concept Product Spectrum X-3Dvision X-2Dvision Slab Dimension Quality Management System Summary 2011 surcon GmbH 38

38 39 Summary Summary 2D and 3D surface measuring systems are available MEVInet-Q used as central analytical system for integreated steel plants Extension by SMS Siemag-specific analyses for the casting and rolling process

39 Dieselstraße 55, D Heiligenhaus Thank you for your attention