Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to ladle castable, particularly to castable for ladle linings or working layers. In order to solve the technical problems, hte invention provides the ladle castable used at the direct lining where a ladle is in direct contact with molten steel; the ladle castable comprises the following components in percentage by weight: 8-20% of sintered microporous aluminum spinel of 12-8mm, 11-15% of sintered microporous aluminum spinel of 8-5mm, 12-15% of sintered microporous aluminum spinel of 5-3mm, 10-15% of sintered microporous aluminum spinel of 3-1mm, 30-35% of sintered microporous aluminum spinel smaller than or equal to 1mm, 0-15% of modified magnesia-calcium clinker smaller than or equal to 1mm, 1% of chromium carbide powder, 3-5% of compound gel powder, 1% of hydrated alumina micropowder, 1% of nacrite powder, 0.5% of bismuth germanate powder, 3-5% of modified pure calcium aluminate cement, 0.1% of C7H10N2O2S, 0.1% of C2H14Na2O6S2, and 0.05% of 4-morpholineethanesulfonic acid. Through the adoption of the ladle castable disclosed by the invention, the reacting degree of the material of the ladle lining and slags can be lowered; the high-temperature performance and the slag corrosion resistance of slag-resistance ladle products are improved; the thermal shock resistance of ladles is greatly improved; the service life of whole casting ladles is effectively prolonged, and compared with conventional ladles of the same type, the service life of ladles using the castable disclosed by the invention is prolonged by 30% and more.
The invention relates to ladle castable, particularly to castable for ladle linings or working layers. In order to solve the technical problems, hte invention provides the ladle castable used at the direct lining where a ladle is in direct contact with molten steel; the ladle castable comprises the following components in percentage by weight: 8-20% of sintered microporous aluminum spinel of 12-8mm, 11-15% of sintered microporous aluminum spinel of 8-5mm, 12-15% of sintered microporous aluminum spinel of 5-3mm, 10-15% of sintered microporous aluminum spinel of 3-1mm, 30-35% of sintered microporous aluminum spinel smaller than or equal to 1mm, 0-15% of modified magnesia-calcium clinker smaller than or equal to 1mm, 1% of chromium carbide powder, 3-5% of compound gel powder, 1% of hydrated alumina micropowder, 1% of nacrite powder, 0.5% of bismuth germanate powder, 3-5% of modified pure calcium aluminate cement, 0.1% of C7H10N2O2S, 0.1% of C2H14Na2O6S2, and 0.05% of 4-morpholineethanesulfonic acid. Through the adoption of the ladle castable disclosed by the invention, the reacting degree of the material of the ladle lining and slags can be lowered; the high-temperature performance and the slag corrosion resistance of slag-resistance ladle products are improved; the thermal shock resistance of ladles is greatly improved; the service life of whole casting ladles is effectively prolonged, and compared with conventional ladles of the same type, the service life of ladles using the castable disclosed by the invention is prolonged by 30% and more.
Ladle castable
ZHANG TING (Autor:in)
23.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Steel ladle castable for integral pouring, and preparation method of steel ladle castable
| Europäisches Patentamt | 2021