B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 41/54 (2006.01)
Patent
CA 2312482
A continuous casting nozzle for casting molten steel, wherein at least a surface layer of an inner bore of the continuous casting nozzle contacting with a molten steel is formed of a refractory comprising: an aggregate consisting essentially of alumina (Al2O3) or an aggregate comprising alumina (Al2O3) as its main ingredient and melting point thereof being at least 1800 degree centigrade: from 15 to 60 wt.% and roseki as a balance. The refractory is added thermosetting resin as binder, kneaded, formed, and sintered in an anti-oxidizing atmosphere.
L'invention concerne une tuyère destinée à la coulée en continu d'acier en fusion, dans laquelle on obtient un revêtement intérieur perforé, au contact de l'acier en fusion, par addition, préalablement au brassage et au moulage, d'un liant de Al2O3 ou d'une composition renfermant Al2O3 comme composant principal, de 15 à 60 % en poids d'un agrégat ayant une température de fusion supérieure ou égale à 1800 DEG C, et pour le reste, d'agalmatolite ; puis par cuisson du produit moulé dans une atmosphère non oxydante.
Ando Mituru
Muroi Toshiyuki
Oguri Kazumi
Takasu Toshikazu
Akechi Ceramics Kabushiki Kaisha
Ridout & Maybee Llp
Tokyo Yogyo Kabushiki Kaisha
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