Products of the dry-spray type, for the protection of centrifugal casting molds for cast iron pipes
US7896961B2 · kind B2 · utility
0Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Nov 9, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D13/102
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns a powdery product, of the type known as dry spray, for protecting centrifuge casting molds of cast iron pipes, comprising the usual components for this type of use, as well as an adjuvant for improving the flowability characteristics of said product when it is being deposited and make them less dependent on its physical or physico-chemical characteristics. Said adjuvant can be in particular silicone oil, potassium siliconate or micro-silica of density less than 0.1 g/cm3, as well as a mixture in any proportions of one or more of those.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.