Application
The crop shear practice is very important for the Hot Strip Mills to avoid
cobbles and steering problems in the finishing stands. Steckel Rolling
operation for all coiled plate product also has problems if the front
end is not cropped squarely, there are often problems with steering and
cobbles which cause significant delays and loss of production.
DELTA is offering a very cost-effective Vision System, for installation
at the delivery side of the roughing mill, which can be integrated into
the existing Crop Shear Control System. This is a well-proven system with
many installations in various hot strip mills. This Vision System captures
and optimizes the target cut line for each individual head and tail crop
in real time.
This technology offers as much as 0.2% of yield savings in most of high
production hot strip mills through a simple implementation of such a system.
The system will capture the images of each head and tail and overlays
the optimized cut line based on shape & width and feeds that information
to customer’s shear control system. The following technical description
explains how the system optimizes the cut line.
The overall results of the crop optimization system depend on accuracy
of the different phase in this process:
- Determination of the optimal cut line.
- Detection before the shear and tracking accuracy of
the bar.
- Control of the shear.
For detection and tracking of the bar before the shear, DELTA offers
a range of Scanning or Fibre Optics Hot Metal Detectors, and heavy duty
pulse generators.
DELTA has extensive experiences working with customers to implement strategies,
which protect the quality of the product while minimizing the amount of
crop loss. We can offer a complete system for crop optimization and shear
control including: crop vision system, bar detection and tracking, shear
control, with diagnostic and data-logging functions.
Special Features
- High resolution area camera capturing in a fraction
of a second the complete image of the Head / Tail. Insensitive to change
in the speed of the bar.
- Advanced edge detection software and data capture processor.
- High speed CPU executing digital filtering algorithms
for edge locations and transfer bar – plate shape determination.
- Most flexible system available with selectable cut strategies.
- Modular architecture allowing easy extension and implementation
of effective solutions with end users.
- User friendly high resolution graphic display.
- Client Server architecture with multiple displays on
a network.
- Design for the steel industry harsh environment.
- Simplicity of installation and maintenance.
- Remote dial up Access Service through network for trouble
shooting.
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