Method for determining the needed amount of structure modifying agent to be added to cast iron
US6783570B1 · kind B1 · utility
1Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a possibility to evaluate cooling curves recorded in near-eutectic cast iron melts. The curves are evaluated by generated in the melt in the center of the sample to the melt as a function of time. This information is then used to identify the part of the centrally recorded cooling curve that can be used as a basis for determining the amount of structure-modifying agent that must be added to produce compacted graphite cast iron, and/or spheroidal graphite cast iron, and to identify the part of said curve that is associated with formation of primary austenite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.