AIR-COOLED CRUCIBLES FOR COLD-MOLD ARC MELTING
Technical Report
·
OSTI ID:4245780
Forced-air cooling of cold-mold arc furnaces for melting zirconium and similar metals has been investigated and found to be practical from the standpoint of heat transfer. It is believed that this technique offers a significant reduction in explosion hazard from that inherent in water cooling, the current industrial practice. A copper crucible, with longitudinal, integral- type fins and with an outer jacket to confine the airstream, appears to be the best general design for air-cooled operation. Cutting the fins into short segments and bending the segments to produce a herringbone effect increased the airstream's turbulence and was found, on test, to increase the heat transfer up to 35%. A tentative examination was made of stainless steel and aluminum as potential crucible materials, but they were deemed unsatisfactory. (auth)
- Research Organization:
- Bureau of Mines
- NSA Number:
- NSA-14-001747
- OSTI ID:
- 4245780
- Report Number(s):
- BM-RI-5443
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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