Batch for manufacturing a refractory ceramic product, method for applying a gunning mass or casting mass onto a surface, method for manufacturing a refractory ceramic product, a refractory ceramic product, and the use of a batch
AssigneeRefractory Intellectual Property GmbH & Co. KG
InventorsAlexander Cepak, Manfred Kappel, Karl-Michael Zettl
Life of this patent
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Abstract
The invention concerns a batch for manufacturing a refractory ceramic product, a method for applying a gunning mass or casting mass to a surface, a method for manufacturing a refractory ceramic product, a refractory ceramic product as well as the use of a batch.
Claims8
A batch for manufacturing a refractory ceramic product, comprising the following components in the following proportions by weight, respectively with respect to the total weight of the product:
- 50% to 99.5% by weight of fused magnesia;
- 0 to 50% by weight of sintered magnesia;
- 0.5% to 5% by weight of a chromium oxide component in the form of at least one raw material based on Cr2O3;
- wherein
- at least 90% by weight of the chromium oxide component has a grain size of at most 50 μm, with respect to the total weight of the chromium oxide component.
A method comprising:
- providing a batch, wherein the batch comprises the following components in the following proportions by weight, respectively with respect to the total weight of the product:
- 50% to 99.5% by weight of fused magnesia;
- 0 to 50% by weight of sintered magnesia;
- 0.5% to 5% by weight of a chromium oxide component in the form of at least one raw material based on Cr2O3;
- wherein
- at least 90% by weight of the chromium oxide component has a grain size of at most 50 μm, with respect to the total weight of the chromium oxide component;
- and
- applying the batch to a surface.
A method for manufacturing a refractory ceramic product, having the following characteristics:
- providing a batch, wherein the batch comprises the following components in the following proportions by weight, respectively with respect to the total weight of the product:
- 50% to 99.5% by weight of fused magnesia;
- 0 to 50% by weight of sintered magnesia;
- 0.5% to 5% by weight of a chromium oxide component in the form of at least one raw material based on Cr2O3;
- wherein
- at least 90% by weight of the chromium oxide component has a grain size of at most 50 μm, with respect to the total weight of the chromium oxide component;
- shaping the batch;
- and
- firing the shaped batch to form a shaped refractory ceramic product.
A refractory ceramic product manufactured by a method, the method comprising:
- providing a batch, wherein the batch comprises the following components in the following proportions by weight, respectively with respect to the total weight of the product:
- 50% to 99.5% by weight of fused magnesia;
- 0 to 50% by weight of sintered magnesia;
- 0.5% to 5% by weight of a chromium oxide component in the form of at least one raw material based on Cr2O3;
- wherein
- at least 90% by weight of the chromium oxide component has a grain size of at most 50 μm, with respect to the total weight of the chromium oxide component shaping the batch;
- and
- firing the shaped batch to form a shaped refractory ceramic product.
A method comprising:
- using a batch as a refractory gunning mass or casting mass, wherein the batch comprises the following components in the following proportions by weight, respectively with respect to the total weight of the product:
- 50% to 99.5% by weight of fused magnesia;
- 0 to 50% by weight of sintered magnesia;
- 0.5% to 5% by weight of a chromium oxide component in the form of at least one raw material based on Cr2O3;
- wherein
- at least 90% by weight of the chromium oxide component has a grain size of at most 50 μm, with respect to the total weight of the chromium oxide component.
Dependencies are inferred from the claim text.