WIRE INJECTION LANCE NOZZLE ASSEMBLY
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United States of America Patent
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N/A
Issued Date -
Jan 14, 2010
app pub date -
Jun 29, 2009
filing date -
Jul 10, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A lance nozzle tip for a refractory lance for feeding an additive wire into a quantity of molten metal below the surface of the molten metal surface has a refractory casing and a conduit located within the refractory casing. The refractory casing has a nozzle portion which has a lance nozzle insert. The conduit has a first portion in the nozzle portion and a main portion having a second portion of the conduit. The first portion of the conduit has a passage extending from an inlet end of the first portion of the conduit to an outlet end of the first portion of the conduit. The passage has a diameter for a substantial portion of the length of the first portion of the conduit and a funnel-shaped portion at the inlet end of the first portion of the conduit for guiding the additive wire conveyed through the passage and second portion of the conduit.
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