Back to results
US 4,069,057 AGranted
Monolithic refractory materials
AssigneesNippon Crucible Co., Ltd., Teikoku Kako Co., Ltd., Nippon Steel Corporation
InventorsSiro Kamei, Kenzo Takeda, Mitsunao Takahashi, Jiro Nakano
Life of this patent
Estimating the term…
Abstract
A monolithic refractory material especially suitable for vibration forming comprising a refractory composition containing silica sol, alumina sol or both as a binder and a water-insoluble or slightly water-soluble phosphate. The refractory material is used for lining receptacles such as a ladle or tundish or a trough or the like for treating molten metals.
Claims5
In a monolithic refractory material comprising
- a. a refractory composition consisting of a powdery refractory component which does not react with silica sol or alumina sol at room temperature;
- and
- b. a binder having a solids content of more than about 5% by weight selected from the group consisting of silica sol, alumina sol or a mixture thereof;
- the improvement which comprises said material being a thixotropic monolithic refractory material for vibration forming which consists essentially of
- i. 100 parts by weight of said powdery refractory component;
- ii. from about 5 to 20 parts by weight of said binder;
- and
- iii. from about 0.3 to 3.0 parts by weight of a water-insoluble or slightly water-soluble metal phosphate synthesized at a temperature of from about 230.degree. to about 500.degree. C.
5 more elements
Dependencies are inferred from the claim text.