Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SCUM WEIR, TWIN-ROLL CONTINUOUS CASTING APPARATUS, AND METHOD FOR MANUFACTURING THIN CAST PIECE
PROBLEM TO BE SOLVED: To provide a scum weir which has thermal shock resistance that suppresses cracking even when contacting molten metal in an almost non-preheated state, and which restricts capture of scum to solidified shells according to elimination of the scum by absorption and adsorption to its pores, without eroding not even in casting exceeding 6 hours.SOLUTION: A twin-roll continuous casting apparatus 10 supplies molten metal 3 to a molten metal pool 16 formed by a pair of rolling cooling rolls 11 and 11 and a pair of side weirs, and forms and grows solidified shells 5 and 5 on a peripheral surface of the cooling rolls 11 and 11 in order to manufacture a thin cast piece 1. In the twin-roll continuous casting apparatus, the scum weirs 20 arranged in the molten metal pool 16 are constituted of castable refractory or shaped brick containing refractory metal oxide, and a volume fraction of their pores is 15 to 70 vol.%.SELECTED DRAWING: Figure 3
【課題】無予熱に近い状態で溶融金属と接触しても亀裂を発生させない耐熱衝撃性を有し、６時間を超える鋳造時間においても溶損することなく、自身の有する気孔にスカムを吸収・吸着除去することでスカムの凝固シェルへの捕捉を抑制することができるスカム堰を提供する。【解決手段】回転する一対の冷却ロール１１，１１と一対のサイド堰によって形成された溶融金属プール部１６に、溶融金属３を供給し、冷却ロール１１，１１の周面に凝固シェル５，５を形成・成長させて薄肉鋳片１を製造する双ロール式連続鋳造装置１０において、溶融金属プール部１６に配設されるスカム堰２０であって、耐火性金属酸化物を含有する不定形耐火物又は定形れんがで構成されており、気孔の体積率が１５体積％以上７０体積％以下である。【選択図】図３
SCUM WEIR, TWIN-ROLL CONTINUOUS CASTING APPARATUS, AND METHOD FOR MANUFACTURING THIN CAST PIECE
PROBLEM TO BE SOLVED: To provide a scum weir which has thermal shock resistance that suppresses cracking even when contacting molten metal in an almost non-preheated state, and which restricts capture of scum to solidified shells according to elimination of the scum by absorption and adsorption to its pores, without eroding not even in casting exceeding 6 hours.SOLUTION: A twin-roll continuous casting apparatus 10 supplies molten metal 3 to a molten metal pool 16 formed by a pair of rolling cooling rolls 11 and 11 and a pair of side weirs, and forms and grows solidified shells 5 and 5 on a peripheral surface of the cooling rolls 11 and 11 in order to manufacture a thin cast piece 1. In the twin-roll continuous casting apparatus, the scum weirs 20 arranged in the molten metal pool 16 are constituted of castable refractory or shaped brick containing refractory metal oxide, and a volume fraction of their pores is 15 to 70 vol.%.SELECTED DRAWING: Figure 3
【課題】無予熱に近い状態で溶融金属と接触しても亀裂を発生させない耐熱衝撃性を有し、６時間を超える鋳造時間においても溶損することなく、自身の有する気孔にスカムを吸収・吸着除去することでスカムの凝固シェルへの捕捉を抑制することができるスカム堰を提供する。【解決手段】回転する一対の冷却ロール１１，１１と一対のサイド堰によって形成された溶融金属プール部１６に、溶融金属３を供給し、冷却ロール１１，１１の周面に凝固シェル５，５を形成・成長させて薄肉鋳片１を製造する双ロール式連続鋳造装置１０において、溶融金属プール部１６に配設されるスカム堰２０であって、耐火性金属酸化物を含有する不定形耐火物又は定形れんがで構成されており、気孔の体積率が１５体積％以上７０体積％以下である。【選択図】図３
SCUM WEIR, TWIN-ROLL CONTINUOUS CASTING APPARATUS, AND METHOD FOR MANUFACTURING THIN CAST PIECE
スカム堰、双ロール式連続鋳造装置、及び、薄肉鋳片の製造方法
KATO YUICHI (Autor:in)
15.11.2018
Patent
Elektronische Ressource
Japanisch
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