Pipe joining method using shape memory alloy
AssigneeKorea Institute of Science and Technology
InventorKwang-Koo Jee
Life of this patent
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Abstract
For a pipe joining method using shape memory alloy capable of preventing a shape memory capacity loss due to a pipe's tolerance, a shape memory alloy joint having an inner diameter greater/less than an outer diameter of pipes to be joined is installed at the outer/inner circumference of a pipe joining portion, and the pipes and the shape memory alloy joint are simultaneously enlarged/reduced. In addition, a general metal joint having an inner diameter greater/less than an outer diameter of shape memory alloy pipes to be joined is installed at the outer/inner circumference of a shape memory alloy pipe joining portion, and the shape memory alloy pipes and the general metal joint are simultaneously enlarged/reduced.
Claims7
A pipe joining method using shape memory alloy, comprising:
- installing a shape memory alloy joint having an inner diameter greater than an outer diameter of a pipe at the outer circumference of a pipe joining portion;
- and through the intermediary of a concurrent thermal treatment transforming both a pipe and pipe joining portions for simultaneously enlarging the pipe and the shape memory alloy joint.
A pipe joining method using shape memory alloy, comprising:
- installing a shape memory alloy joint having an outer diameter less than an inner diameter of a pipe at the inner circumference of a pipe joining portion;
- and through the intermediary of a concurrent thermal treatment transforming both a pipe and pipe joining portions for simultaneously reducing the pipe and the shape memory alloy joint.
A pipe joining method using shape memory alloy, comprising:
- installing a general metal joint having an inner diameter greater than an outer diameter of a shape memory alloy pipe at the outer circumference of a shape memory alloy pipe joining portion;
- and through the intermediary of a concurrent thermal treatment transforming both a pipe and pipe joining portions for simultaneously reducing the shape memory alloy pipe and the general metal joint.
A pipe joining method using shape memory alloy, comprising:
- installing a general metal joint having an outer diameter less than an inner diameter of a shape memory alloy pipe at the inner circumference of a shape memory alloy pipe joining portion;
- and through the intermediary of a concurrent thermal treatment transforming both a pipe and pipe joining portions for simultaneously enlarging the shape memory alloy pipe and the general metal joint.
Dependencies are inferred from the claim text.