公开(公告)号：US10753878B2

公开(公告)日：2020-08-25

申请号：US16136232

申请日：2018-09-19

Applicant: Worcester Polytechnic Institute

Inventor： Shaymus W. Hudson ,  Diran Apelian ,  Robert DeSaro ,  Joseph C. Craparo

IPC: G01N21/94 ,  G01N21/71

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.

公开(公告)号：US20190128811A1

公开(公告)日：2019-05-02

申请号：US16136232

申请日：2018-09-19

Applicant: Worcester Polytechnic Institute

Inventor： Shaymus W. Hudson ,  Diran Apelian ,  Robert DeSaro ,  Joseph C. Craparo

IPC: G01N21/71

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.