C - Chemistry – Metallurgy – 22 – F
Patent
C - Chemistry, Metallurgy
22
F
148/30
C22F 1/00 (2006.01) C22F 3/00 (2006.01) H01R 4/58 (2006.01)
Patent
CA 2009580
ABSTRACT The method of conditioning an article of shape memory metallic alloy having a double-action shape memory in accordance with the invention comprises the operation s 01 to 07 consisting of - forming (01) at ambient temperature T1 the article (P) to the shape constituting a first shape memory state, - mechanically maintaining the article in its first shape memory state (02) and heating the mechanically held article to temperature T3 to transform it into a state of the austenitic crystallographic phase (03), - suddenly lowering the mechanically held article to a temperature T4 (04) and subjecting it to thermal stabilisation treatment (05) whilst still preserving its austenitic state, and - subjecting the article to an education process in order to shape it into the second shape memory state (06, 07). Figure 1
Gowling Lafleur Henderson Llp
Grenouillet Guy
Nivarox-Far S.a.
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