Composite barrel and process for the manufacture thereof
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United States of America Patent
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-
Oct 18, 1983
Grant Date -
N/A
app pub date -
Sep 2, 1980
filing date -
Sep 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This barrel is characterized in that it comprises three layers superimposed without any break in continuity of surface contact between layers, namely: an internal layer of a refractory material; a core layer of a material the mechanical strength of which is higher than about 250 MPa at 900.degree. and an external layer of an alloyed steel. The invention relates also to a process for the manufacture of such barrel.
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