Stretching device of shape memory alloy wire and using method thereof
A memory alloy wire and stretching device technology, applied in the processing of building materials, structural elements, building components, etc., can solve the problems of high cost, extra programming, complicated operation, etc., to achieve simple operation, high promotion value, application Stress controllable effect
Active Publication Date: 2019-05-24
SOUTHEAST UNIV
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Problems solved by technology
This invention mainly develops the application control program for mechanical performance testing and thermal-mechanical performance training of shape memory alloy wire, but the operation is complicated, additional programming is required, and the cost is high
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[0028] The present invention will be further described below in conjunction with accompanying drawing and embodiment:
[0029] Such as figure 1 As shown, a stretching device for a shape memory alloy wire of the present invention includes an upper frame 1, a lower frame 2 and an anchoring device 3, wherein the upper frame 1 and the lower frame 2 have the same structure and are symmetrical up and down, and the anchoring device 3 is located on the upper frame 1 And lower frame 2 left and right sides.
[0030] Such as Figure 2 to Figure 4 As shown, the upper frame 1 includes a first frame part 11 and a second frame part 12. The first frame part 11 and the second frame part 12 have the same structure and are left-right symmetrical. The first frame part 11 includes a transverse steel frame 111, a longitudinal steel frame 112 and L-shaped steel plate 113, the longitudinal steel frame 112 is perpendicular to the left end of the transverse steel frame 111 and the two are connected b...
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The invention discloses a stretching device of a shape memory alloy wire and a using method thereof. The stretching device comprises an upper frame, a lower frame and an anchoring device, the upper frame and the lower frame are identical in structure and in up-down symmetry, the upper frame comprises a first frame part and a second frame part which are identical in structure and in left-right symmetry, the first frame part comprises a transverse steel frame, a longitudinal steel frame and an L-shaped steel plate, and the first frame part and the second frame part are connected through a stretching screw penetrating threaded holes in the first frame part and the second frame part. A distance between the first frame part and the second frame part is increased by respectively turning nuts leftwards and rightwards so as to stretch the shape memory alloy wire. The stretching device has the advantages of being simple in structure, simple and convenient to operate, controllable in stress application, accurate in stretching strain control and small in retraction of the shape memory alloy wire and has great popularization value.
Description
technical field [0001] The invention relates to the technical field of steel wire processing, in particular to a stretching device for a shape memory alloy wire and a method for using the same. Background technique [0002] Shape memory alloy is a kind of material with excellent performance, which has been widely used in the field of civil engineering. The macroscopic mechanical properties of shape memory alloys include shape memory effect and superelasticity. There is a metal phase transition in the shape memory alloy, and the phase transition can cause a change in the macroscopic shape of the material. After deformation in the martensitic state, it can return to the original shape when heated to a high temperature, which is usually called the shape memory effect; shape memory alloy Loading in the austenitic state causes a certain degree of plastic deformation and then unloading, the shape can be completely restored, and the stress and strain are no longer linearly corresp...
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IPC IPC(8): E04G21/12E04C5/12
Inventor 王文炜谈笑周畅祁德胜张玮陈凌众胡伟陈宇新李杉
Owner SOUTHEAST UNIV