Brittle article comprising joined-together hardened glass and/or glass-ceramic parts and method of making same
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United States of America Patent
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Mar 2, 2004
Grant Date -
N/A
app pub date -
Feb 15, 2000
filing date -
Feb 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the method according to the invention cold or unheated hardened glass and/or glass-ceramic parts are bonded together with a metallic ductile joining material, preferably silver, copper, aluminum or an alloy of those metals, to form a brittle article. The parts to be joined in an initial unheated state are placed with the metallic ductile joining material between them in a high frequency alternating field with frequencies preferably from 100 to 500 kHz. Then the joining material is inductively heated locally to melt it by means of the alternating field and the parts are pressed together to form a sufficiently strong bond between the parts.
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