Electrochemical probe for measuring magnesium concentration in molten aluminum
US4601810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4114
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrochemical concentration cell adapted for immersion in a melt of aluminum-magnesium alloy for determining the concentration of the Mg on an ongoing basis (e.g., during demagging). The cell includes a first probe comprising a housing having a cavity therein containing a Mg-ion-rich molten salt electrolyte. An opening in the housing exposes the electrolyte to the melt via a porous ceramic frit wetted by the electrolyte. A hollow capsule containing a Mg-rich reference material is immersed in the electrolyte and the reference material electrically coupled to the melt via second probe immersed therein. Containment of the reference material within the capsule beneath the melt prevents attack of the housing by the reference material and evaporative loss thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.