TECHNIQUES
ABOUT DIRECT OPTIMIZING
CONTROL OF GREEN SAND QUALITY*
Li Dayong Xu Xiongfei Ma Xuliang Zhang Yutong
School of Material
Science and Engineering, Harbin University of Science and Technology,
Harbin 150080, China |
Abstract:
Green sand casting is still a main method in the world at
present and it is very significant to develop the technology of
controlling green sand quality. A new concept, from contents
test to contents control, is advanced. In order to realize the
new idea, a new method to on-line test active clay and moisture
of green sand - double powers energizing alternately (DPEA)
method is put forwards. The principle of the new method is to
energize standard sand sample with AC and DC powers and to test
the electric parameters, and then, to calculate active clay and
moisture of green sand by using artificial neural network (ANN).
Based on this new method, a direct optimizing system for
controlling green sand quality is developed. Techniques about
testing and controlling methods, hardware and software are
discussed.
Key words:
New technology Green sand quality Optimizing control
*
This project is supported by Provincial Outstanding Youth
Foundation of Heilongjiang, China. Selected from Proceedings of 2000 the
First International Conference on Mechanical Engineering; revised
manuscript June 2, 2001
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