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US 4,359,337 AGranted
Process for the manufacture of basic slags for the electroslag remelting process
AssigneeWacker Chemie AG
InventorAnton More
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Abstract
The invention relates to a process for the manufacture of basic slags for the electroslag remelting process, with the oxidic components corresponding to the desired composition, which may have a fluoridic content of not more than 5% by weight, and the fluoridic components corresponding to the desired composition, which may have an oxidic content of not more than 5% by weight, being melted separately. The slags manufactured according to the invention have a particularly low moisture content.
Claims4
A process for the manufacture of basic slags for the electroslag remelting process that have an analytical content of:
- 0.2-15% by weight of SiO.sub.2 ;
- 12-40% by weight of Al.sub.2 O.sub.3 ;
- 15-40% by weight of an alkaline earth metal oxide;
- 12-75% by weight of CaF.sub.2 ;
- up to 0.5% by weight of FeO;
- up to 1% by weight of MnO;
- up to 10% by weight of TiO.sub.2 ;
- and
- impurities resulting from the raw materials,
- comprising the steps of:
- forming a slag by mixing predominantly oxidic components, in which the content of fluoridic component is not more than 5% by weight, with predominantly fluoridic components, in which the content of oxidic components is not more than 5% by weight, the predominantly oxidic components and predominantly fluoride components being melted separately, being cooled, solidified and broken into smaller components before being mixed.
8 more elements
Dependencies are inferred from the claim text.