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Use of memory metal pins in a mechanical shaft seal

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
451 KB
Volume
2005
Category
Article
ISSN
1350-4789

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✦ Synopsis

This patent uses torque transfer pins that are manufactured from memory metal. The purpose of this is to reduce wear and breakage of the torque transfer mechanism in the seal. In the event of excessive torque, such as during startup, the memory metal can withstand the additional superelastic strain, from which it will subsequently recover. Wear or breakage of the drive pins is therefore reduced compared to a seal with conventional pins.

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## Abstract WC‐Co hard metal is a material of high hardness, high compressive strength and wear resistance while maintaining good toughness and thermal stability. Samples of nanosized WC powders with 10 wt% Co, WC‐10 wt% Ti, WC‐9 wt% Ti‐1 wt% Co were cold pressed at 200 MPa and sintered at 1500Β°C d