A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MOLTEN STEEL LADLE AND MOLTEN STEEL LADLE PRODUCTION METHOD
To provide a molten steel ladle capable of suppressing crack generation and excessive peeling in castable refractories, and a molten steel ladle production method.SOLUTION: A molten steel ladle (10) comprises castable refractories (90) at the inner most layers of side walls (11). Each castable refractory (90) comprises an aggregate (91). The grain size of the aggregate (91) is less than 20 mm. As for the physical properties of the castable refractory (90), estimated circumferential stress (σ) is less than estimated hot shear strength (Fs).SELECTED DRAWING: Figure 5
【課題】不定形耐火物において、き裂の発生及び過大な剥離を抑制することができる溶鋼鍋及び溶鋼鍋の製造方法を提供する。【解決手段】溶鋼鍋（１０）は、側壁（１１）の最内層に不定形耐火物（９０）を備える。不定形耐火物（９０）は骨材（９１）を含む。骨材（９１）の粒径は２０ｍｍ未満である。不定形耐火物（９０）の物性について、推定周方向応力（σ）が、推定熱間せん断強度（Ｆｓ）よりも小さい。【選択図】図５
MOLTEN STEEL LADLE AND MOLTEN STEEL LADLE PRODUCTION METHOD
To provide a molten steel ladle capable of suppressing crack generation and excessive peeling in castable refractories, and a molten steel ladle production method.SOLUTION: A molten steel ladle (10) comprises castable refractories (90) at the inner most layers of side walls (11). Each castable refractory (90) comprises an aggregate (91). The grain size of the aggregate (91) is less than 20 mm. As for the physical properties of the castable refractory (90), estimated circumferential stress (σ) is less than estimated hot shear strength (Fs).SELECTED DRAWING: Figure 5
【課題】不定形耐火物において、き裂の発生及び過大な剥離を抑制することができる溶鋼鍋及び溶鋼鍋の製造方法を提供する。【解決手段】溶鋼鍋（１０）は、側壁（１１）の最内層に不定形耐火物（９０）を備える。不定形耐火物（９０）は骨材（９１）を含む。骨材（９１）の粒径は２０ｍｍ未満である。不定形耐火物（９０）の物性について、推定周方向応力（σ）が、推定熱間せん断強度（Ｆｓ）よりも小さい。【選択図】図５
MOLTEN STEEL LADLE AND MOLTEN STEEL LADLE PRODUCTION METHOD
溶鋼鍋及び溶鋼鍋の製造方法
KAGEYAMA KOJI (author) / ISAYAMA RYOYA (author) / YASUDA NORIAKI (author) / ITO SATOSHI (author)
2023-01-17
Patent
Electronic Resource
Japanese
IPC:
B22D
CASTING OF METALS
,
Gießen von Metallen
/
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE