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連鋳操業改善のための鋳型内凝固シェルの応力解析

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川崎製鉄技報 KAWASAKI STEEL GIHO

Vol.12 (1980) No.3

連鋳操業改善のための鋳型内凝固シェルの応力解析

Numerical Analysis of Heat Transfer and Stress in Solidifying Shell within the Mold of Continuous Casting

木下 勝雄(Katsuo Kinosita) 北岡 英就(Hidenari Kitaoka) 江見 俊彦(Toshihiko Emi) 松野 淳一(Jun-ichi Matsuno)

要旨 : 無欠陥スラブを連続鋳造する操業条件を確立することを目的として,鋳型内凝固シェル中 の温度と応力分布を解析するため二つの数学的モデルを開発してきた。その一つは,薄肉 円筒シェルの粘弾性応力解析モデルに基づくものである。また,他の一つは,2 次元非定常 伝熱解析と連成した 2 次元熱弾塑性応力解析モデルで,凝固シェル内の温度場と応力場の 相互干渉を含めて評価することができる。いずれのモデルも,連続鋳造における最適鋳造 条件を見つけるための有力な凝固シミュレーターとして活用できる。 Synopsis :

In order to find continuous-casting conditions for defect-free slabs, two methematical models have been developed to analyze temperature- and stress-field in solidifying shell. The one of them is based on a visco-elastic stress analysis of a cylindrical shell model. The other is based on a two dimensional thermal elasto-plastic stress analysis connected with a two dimensional non-steady state heat transfer analysis, and in capable of taking into account the interaction between the temperature- and stress-field. Both of them have been utilized as a potential simulator to determine optimum casting conditions for continuous casting.

(c)JFE Steel Corporation, 2003

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