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Reformation and Experiment Reserarch of Slab Casting Machine in Angang Steel

Author: SunWeiQiang
Tutor: YangHuiLin
School: Northeastern University
Course: Mechanical Engineering
Keywords: continuous casting non-sine oscillation leaf spring guidance finite element precision
CLC: TF341.6
Type: Master's thesis
Year: 2010
Downloads: 30
Quote: 0
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Abstract


After inventing the mold oscillation technology, continuous casting plant is used in iron and steel industry widespreadly, whose reciprocating motion helps the ingot blank demould. The technology consists two basic parts, which is achieving exact movement track and making the mold oscillate. The leaf spring guidance precision is high and doesn’t wear out like the guidance ban and roller, which has been a commen technology. The non-sine oscillationis the development trend of the oscillation technology because of its unique advantage. The mole oscillation frequency accelerating, the oscillating problems of the machine becomes worse. So it’s necessary to use computer simulation technology to research the dynamic performance and motion precision of the facility.This article analyzes several overseas non-sine oscillation method and introduces a new kind of non-sine wave. After theory calculating, the rule and parmeters of this kind oscillation are obtained. The leaf spring guidance mold oscillation systerm is studied intensively. Base on the theory of elastic kinetics and the working condition, the nonlinear finite element kinetics model is built. The natural frequency and relevant mode are calculated. According to the dynamics equations and the finite element software, the time and frequercy dynamic response of different swing are obtained under non-sine oscillation. The effect of swing and frequency are analyzed. Base on the precision formula of the machine, the oscillation precision is computed. The academic rationality is validataled by experiment. A method base is built for the design and reformation of the mold with leaf spring guidance.

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CLC: > Industrial Technology > Metallurgical Industry > Metallurgical machinery,metallurgical production automation > Steel-making machinery and production automation > Steel-making machinery > For continuous casting equipment
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