Scale inhibitor compositions for application onto metal substrates to be heated, and the method therefor
US3957673A · kind A · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1973 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jul 16, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D1/70
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A scale inhibitor composition comprising Cr.sub.2 O.sub.3, reducing agent, refractory or clay, SiO.sub.2 and water glass, and a method of inhibiting the formation of scale on the surfaces of metal substrates to be heated in high temperature atmosphere by application of a coating of the scale inhibitor composition either on the metal surface, or on a subbing layer of a parting agent previously applied on the metal surfaces are disclosed, wherein improvements are effected particularly in both yield and prevention of surface scars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.