Metallurgical apparatus – With control means responsive to sensed condition – With pressure sensor
Patent
1995-04-10
1995-12-26
Kastler, Scott
Metallurgical apparatus
With control means responsive to sensed condition
With pressure sensor
266220, 266270, C22B 905
Patent
active
054780535
ABSTRACT:
This invention relates a refractory gas purging device for the introduction of gases through a metallurgical vessel to molten metal therein, the device having improved wear indication, safety, and performance. In particular, the refractory gas purging device has a porous refractory inner wear indicator which indicates the end of the useful life of the device. Further, the refractory gas purging device has directional gas passages which do not extend throughout the entire length of the device to prevent molten metal leaks from the metallurgical vessel and such directional gas passages being designed to improve the performance of the device.
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Richter Tomas
Shoff John E.
Skok John
Kastler Scott
North American Refractories Co. Inc.
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