Joint made of shape memory alloy
Description
The present invention provides a joint which is less loosen even if it is used under a circumference undergoing heat cycles such as in a nuclear power plant. Namely, a liner shape has a structure different between the right-to-left, which is different from existent right and left symmetrical shape. A groove is formed on the side of pipeline to be connected, and upon joint connection, the liner is pushed into the groove formed on the pipeline to connect them by the force caused upon transformation of the shape memory alloy. In the joint having such a structure, the clamping force of the joint is less reduced by the effects of heat cycles. Even when the clamping force is reduced by some or other causes, the joint is not dropped off from the pipeline. Even when the joint made of a shape memory alloy of a type using a liner is used as a joint for connecting longitudinal pipelines of a nuclear power plant, the reliability and the safety can be maintained. (I.S.)
Availability note (English)
Available from JAPIO. Also available from EPO.Additional details
Publishing Information
- Imprint Pagination
- 11 p.
- IPC:
- Int. Cl. F16L13/04; G21C17/10
- IPC
- Int. Cl. F16L13/04; G21C17/10
- Patent number
- JP patent document 10-160064/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 29060178
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- IRON ALLOYS; JOINING; LINERS; MECHANICAL PROPERTIES; NUCLEAR POWER PLANTS; PIPE JOINTS; PIPELINES; SHAPE MEMORY EFFECT
- Descriptors DEC
- ALLOYS; FABRICATION; JOINTS; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS; TRANSITION ELEMENT ALLOYS
Optional Information
- Secondary number(s)
- JP patent application 8-315882