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About: Shape-memory coupling     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Substance100019613, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatMetallurgicalProcessesyago:WikicatSmartMaterialsyago:Abstraction100002137yago:Act100030358yago:Activity100407535yago:Event100029378yago:Material114580897yago:Matter100020827yago:Part113809207yago:PhysicalEntity100001930yago:Procedure101023820yago:PsychologicalFeature100023100yago:Relation100031921yago:YagoPermanentlyLocatedEntityyago:Substance100019613 New Facet based on Instances of this Class

Shape-memory coupling is a system for connecting pipes using shape-memory alloys. In its typical form the technique uses an internally ribbed sleeve of alloy such as Tinel that is slightly smaller in diameter than the pipes it is to connect. The sleeve is cooled in liquid nitrogen then, in this low-temperature state, mechanically expanded with a mandrel to fit easily over the two pipe ends to be joined. After fitting, it is allowed to rewarm, when the memory effect causes the sleeve to shrink back to its original smaller size, creating a tight joint.