Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
NOZZLE
PROBLEM TO BE SOLVED: To provide a nozzle capable of suppressing or preventing nozzle blocking phenomenon by forming a low melting point substance by virtue of reaction with inclusion in molten steel.SOLUTION: A casting nozzle includes a nozzle body 41 having an inner hole part 42 in which molten steel can be moved and which is formed of a discharge port 45 through which the molten steel can be moved to the outside of the inner hole part 42. Therein, the nozzle body 41 includes an upper body 41a having the inner hole part 42 in which the molten steel can be moved, a lower body 41c which is arranged on a lower part of the upper body 41a and is formed of the discharge port 45 through which the molten steel can be moved to the outside of the inner hole part 42 and an intermediate body 41b which is arranged between the upper body 41a and the lower body 41c and is formed of a channel for communicating the inner hole part 42 and the discharge port 45, and the lower body 41c includes a first refractory composition which includes a principal component comprising perovskite (CaTiO), calcium zirconate (CaZrO), calcium silicate (CaO.SiO, 2CaO.SiO), BOand graphite (C) and a binder.SELECTED DRAWING: Figure 3
【課題】溶鋼中の介在物と反応して低融点物質を形成することにより、ノズル閉塞現象を抑制又は防止できるノズルの提供。【解決手段】鋳造用ノズルであって、溶鋼が移動可能な内孔部４２を有し、溶鋼が内孔部４２の外側に移動可能な吐出口４５が形成されたノズル胴体４１を備え、ノズル胴体４１は、溶鋼が移動可能な内孔部４２を有する上部胴体４１ａと、上部胴体４１ａの下部に配設され、溶鋼が内孔部４２の外側に移動可能な吐出口４５が形成された下部胴体４１ｃと、上部胴体４１ａと下部胴体４１ｃとの間に配設され、内孔部４２及び吐出口４５を連通させる流路が形成された中間胴体４１ｂと、を備え、下部胴体４１ｃは、灰チタン石（ＣａＴｉＯ３）、カルシウムジルコネート（ＣａＺｒＯ３）、カルシウムシリケート（ＣａＯ・ＳｉＯ２、２ＣａＯ・ＳｉＯ２）、Ｂ２Ｏ３及び黒鉛（Ｃ）を含む主成分と、バインダを含む第１の耐火組成物と、を含む鋳造ノズル。【選択図】図３
NOZZLE
PROBLEM TO BE SOLVED: To provide a nozzle capable of suppressing or preventing nozzle blocking phenomenon by forming a low melting point substance by virtue of reaction with inclusion in molten steel.SOLUTION: A casting nozzle includes a nozzle body 41 having an inner hole part 42 in which molten steel can be moved and which is formed of a discharge port 45 through which the molten steel can be moved to the outside of the inner hole part 42. Therein, the nozzle body 41 includes an upper body 41a having the inner hole part 42 in which the molten steel can be moved, a lower body 41c which is arranged on a lower part of the upper body 41a and is formed of the discharge port 45 through which the molten steel can be moved to the outside of the inner hole part 42 and an intermediate body 41b which is arranged between the upper body 41a and the lower body 41c and is formed of a channel for communicating the inner hole part 42 and the discharge port 45, and the lower body 41c includes a first refractory composition which includes a principal component comprising perovskite (CaTiO), calcium zirconate (CaZrO), calcium silicate (CaO.SiO, 2CaO.SiO), BOand graphite (C) and a binder.SELECTED DRAWING: Figure 3
【課題】溶鋼中の介在物と反応して低融点物質を形成することにより、ノズル閉塞現象を抑制又は防止できるノズルの提供。【解決手段】鋳造用ノズルであって、溶鋼が移動可能な内孔部４２を有し、溶鋼が内孔部４２の外側に移動可能な吐出口４５が形成されたノズル胴体４１を備え、ノズル胴体４１は、溶鋼が移動可能な内孔部４２を有する上部胴体４１ａと、上部胴体４１ａの下部に配設され、溶鋼が内孔部４２の外側に移動可能な吐出口４５が形成された下部胴体４１ｃと、上部胴体４１ａと下部胴体４１ｃとの間に配設され、内孔部４２及び吐出口４５を連通させる流路が形成された中間胴体４１ｂと、を備え、下部胴体４１ｃは、灰チタン石（ＣａＴｉＯ３）、カルシウムジルコネート（ＣａＺｒＯ３）、カルシウムシリケート（ＣａＯ・ＳｉＯ２、２ＣａＯ・ＳｉＯ２）、Ｂ２Ｏ３及び黒鉛（Ｃ）を含む主成分と、バインダを含む第１の耐火組成物と、を含む鋳造ノズル。【選択図】図３
NOZZLE
ノズル
KIM JANG HOON (Autor:in) / LEE WOO JIN (Autor:in)
26.10.2017
Patent
Elektronische Ressource
Japanisch