公开(公告)号：WO2019060471A1

公开(公告)日：2019-03-28

申请号：PCT/US2018/051832

申请日：2018-09-20

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： HUDSON, Shaymus W ,  APELIAN, Diran ,  DESARO, Robert ,  CRAPARO, Joseph C.

IPC: G01N21/62

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.