Process for the production of a soldered joint
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United States of America Patent
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May 27, 1997
Issued Date -
N/A
app pub date -
Jan 26, 1995
filing date -
May 27, 1992
priority date (Note) -
Expired
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Abstract
Process for the production of a soldered joint. The invention pertains to a soldering process in which thin walled carbon parts are soldered, on a flat side, to silicon carbide parts, for the connection of mechanically and thermally highly stressed parts such as supporting and sliding rings that are utilized in dry gas seals, with the use of a pure silver-titanium solder, having a titanium content of 2-6% by weight, in combination with synthetic graphite and a silicon carbide comprised of silicon, silicon carbide and carbon, whose physical properties are well known, it is possible to produce a durable bond, in a vacuum furnace, by means of a predetermined time/temperature program under suitable conditions, which bond is particularly suitable for the noted supporting and sliding rings utilized in dry gas seals.
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