Iron castings with compacted or spheroidal graphite produced by determining coefficients from cooling curves and adjusting the content of structure modifying agents in the melt
US6604016B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | May 2, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sampling device for thermal analysis of solidifying metal, comprising at least one container intended to contain a sample quantity (30) of liquid metal during analysis, and at least one sensor (40, 220, 240) for thermal analysis, said sensor(s) being intended to be at least partly immersed in the solidifying metal sample quantity during analysis. The container comprises an inner wall (50), with an interior surface (60) intended to face the sample quantity during analysis, and an exterior surface (70); an outer wall (80), with an exterior surface (100) intended to face the ambient atmosphere, and an interior surface (90); said walls being joined at the mouth of the container whereby the exterior surface (70) of the inner wall (50) and the interior surface (90) of the outer wall (80) together define an essentially closed space (110).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.