Powder product to protect moulds for the centrifugal casting of cast iron tubes and method of preparing this product
US6338753B1 · kind B1 · utility
2Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Jan 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D13/102
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Powder product for the protection of molds for centrifugal casting of cast iron tubes, and a method for its production. The powder contains a mixture of a silicon-based inoculating agent and a mineral powder, the silicon-based inoculating product comprising waste masses from synthesis of alkyl- or aryl- halosilanes, from which tin and optionally copper has been removed. The mineral powder may contain at least one material selected from the group consisting of carbon and a fluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.