Molten metal inclusion testing
US10753878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Sep 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A molten metal inclusion test apparatus includes a spectroscopic appliance for gathering data indicative of the contents of a quantity of molten metal. Laser induced emissions provide spectral data based on the elements present in the melt. Analysis of a series of samplings, or “shots” of laser induced emissions indicates a presence of elements above a background or expected level. These elements appear as spikes in a graphical rendering of the spectral data, defined by a wavelength of the detected element. Correlation of the elements detected in the same shot indicates a composition of the inclusion, typically a particle of an extraneous compound in the melt. Such spectral analysis provides immediate feedback about melt quality, allowing corrective measures to be taken prior to casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.