Published February 21, 1984 | Version v1
Patent Metadata-only

ESR hollows molten metal/slag interface detection

Creators

Description

An improved system for detecting the location of a molten metal/slag interface during the casting of electroslag remelted hollows is provided. The system includes a gamma ray radiation source (30) and a scintillation counter (40). The source (30) and counter (40) reside outside the casting crucible (1) and are held in fixed spatial relationships with respect to one another and with respect to the mandrel (10). The radiation from the source (30) is directed through the crucible (1) and through the annular casting zone (9) defined between the sidewalls of the upwardly driven mandrel (10) and the crucible (1). The counter (40) provides an electrical signal responsive to the rate of radiation events detected thereby

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Publishing Information

Imprint Pagination
v p.
IPC:
Int. Cl. G01N 23/00; G01T 1/20.
IPC
Int. Cl. G01N 23/00; G01T 1/20.
Patent number
US patent document 4,433,242/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
16013007
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CASTING; CAVITIES; CRUCIBLES; DETECTION; GAMMA RADIATION; GAMMA SOURCES; INTERFACES; MELTING; METALS; SCINTILLATION COUNTERS; SIGNALS; SLAGS
Descriptors DEC
ELECTROMAGNETIC RADIATION; ELEMENTS; FABRICATION; IONIZING RADIATIONS; MEASURING INSTRUMENTS; PHASE TRANSFORMATIONS; RADIATION DETECTORS; RADIATION SOURCES; RADIATIONS

Optional Information

Notes
PAT-APPL-294536.