Level 2 Model Improvement
Steel mill Level 2 system is
considered as the nerve
system of a steel mill and
is usually
referred to as the Production
Execution System, in which mill Level 2 model contains most of the
mill system
intelligences.
Most product defects,
such as the poor geometry
and low properties, are
directly or indirectly
related to a poor Level 2
model. The
center buckle and edge wave,
for example, are caused by
unequal drafts in the middle
and the sides of the
plate/strip due to a draft
schedule not fit to roll
profile. The problem of low
mechanical properties is
often caused by inaccurate
Level 2 model in which the
preferred parameters
(temperatures, etc.) missed
metallurgical targets. See
Level 2 Model Performance
Issues such as
Product Defects and
Level 2 Model Error.
Even a slight improvement of
a
Level 2 model can add
significant economic value
to the steel mill. See
Significance of the Level 2
Model Improvement. For
example, 1% reduction in the
Level 2 force error may have
a value of 1 million US
dollar per year! (See
Significance of Accurate
Level 2 Force Prediction).
Metal Pass
Level 2 Model Improvement
can significantly increase
your system accuracy, by
making very few , often only
several lines of, source
code change, or by simple
modification of the Level 2 input data without any
source code modification.
Improvement can be performed in
the modules such as
For more significant
improvement, usually by more
modifications to the
existing system, Metal Pass
can perform
System Further Development
for you. Metallurgical
models and other thermal and
mechanical models can be
integrated into your system,
as showed below:
Please see the consulting
section
Level 2 Model Improvement for details.
Level 2 Model & New
Product Development
This series, Level 2 Model
Optimization and New Product Development, include following
articles:
1.
Technical Summary
2.
Micro-Alloy and Model Modification (1)
3. Micro-Alloy and Model Modification (2)
4.
A Simple and Efficient Way to Integrate New Models into
Level 2
5. Characteristics and advantages of the model and software
(1)
6.
Characteristics and advantages of the model and software
(2)
7.
A New-Generation Level 2 and the development of new
products
8.
Quality management system for new variety of development
(1)
9.
Quality management system for new variety of development
(2)
10.
Advantage and History of New-Generation Level 2 System
Development of New Generation Level 2
Development of new generation Level 2
-
Improvement of secondary model in medium and heavy plate coil
plant of NISCO
-
Improvement of Level 2 model of plate coil plant of
Evraz Oregon Steel
-
Improving the rolling pass schedule of the secondary model to
optimize the plate shape and improve the mechanical properties
