CN105108336A - Shape changing device, welding method, toy tree and toy hair style - Google Patents
Shape changing device, welding method, toy tree and toy hair style Download PDFInfo
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- CN105108336A CN105108336A CN201510512680.XA CN201510512680A CN105108336A CN 105108336 A CN105108336 A CN 105108336A CN 201510512680 A CN201510512680 A CN 201510512680A CN 105108336 A CN105108336 A CN 105108336A
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- titanium
- wire
- toy
- nickel
- copper wire
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H3/00—Dolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
- B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
- B21F15/06—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material
- B21F15/08—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material making use of soldering or welding
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/01—Shape memory effect
Abstract
The invention provides a shape changing device based on nickel-titanium shape memory alloy. The shape changing device comprises a copper wire, a nickel-titanium wire and a power supply, the copper wire and the nickel-titanium wire are connected together through laser welding, and the power supply is connected with the copper wire or the nickel-titanium wire through a switch. The power supply controls to supply power to the welded copper wire and nickel-titanium wire through the switch, a shape change of the nickel-titanium wire is generated after the temperature reaches the phase-change temperature, and therefore intelligent control over the shape of the nickel-titanium shape memory alloy is achieved. Accordingly, the technical problem that the shape of the nickel-titanium shape memory alloy under the temperature change lacks an effective solving method is solved.
Description
Technical field
The present invention relates to the application of marmem, in particular to a kind of change in shape device and welding method, toy tree and toy hair style.
Background technology
Niti-shaped memorial alloy has good SME and super-elasticity, is also the marmem be most widely used at present.But, because the shape of niti-shaped memorial alloy under variations in temperature lacks effective solution, the range of application of niti-shaped memorial alloy is very restricted.How providing a kind of device of energy Based Intelligent Control niti-shaped memorial alloy shape, is the technical problem being badly in need of solving to those skilled in the art.
Summary of the invention
In order to overcome the limited technical problem of existing niti-shaped memorial alloy range of application, technical problem to be solved by this invention is to provide a kind of device that existing niti-shaped memorial alloy range of application can be made to expand.
Corresponding therewith, another technical problem that will solve of the present invention is to provide the intelligent toy adopting above-mentioned niti-shaped memorial alloy device.
With regard to realizing the device of niti-shaped memorial alloy range of application expansion, the invention provides a kind of change in shape device based on niti-shaped memorial alloy, comprise: copper wire, titanium-nickel wire and power supply, described copper wire and described titanium-nickel wire are linked together by laser weld, and described power supply is connected with described copper wire or titanium-nickel wire via a switch.
Further, switch described in the above-mentioned change in shape device based on niti-shaped memorial alloy open or closed be realized by the mode of wireless remote control.Realize opening of above-mentioned switch or closed by touchless remote control mode, thus control the change based on the change in shape device shape of niti-shaped memorial alloy.
Further, described in the above-mentioned change in shape device based on niti-shaped memorial alloy, the technological parameter of laser weld is peak power 1.6KW, pulsewidth 20MS, pulse energy 18.8J, solder joint coincidence factor 60%, shield gas flow rate 30L/min.
Further, described in the above-mentioned change in shape device based on niti-shaped memorial alloy, copper wire also comprises Ageing Treatment after welding with described titanium-nickel wire, and the condition of described Ageing Treatment is temperature 450-500 DEG C and temperature retention time 10 minutes.By the process of above-mentioned aging condition, the intensity of weld after described laser weld can be strengthened, to meet the Structural strength calls of the present invention to weld.
The present invention also provides a kind of to above-mentioned method of welding with described titanium-nickel wire based on copper wire in the change in shape device of nickel-titanium shape memory conjunction, before welding, is fixed in described copper wire one end to be welded and described titanium-nickel wire one end by NiTi pipe; In welding process, laser soldering device is aimed at described NiTi pipe and carry out laser weld; After welding terminates, the described copper wire welded and described titanium-nickel wire are carried out Ageing Treatment.Small-sized because of copper wire and titanium-nickel wire, adopts said method copper wire and titanium-nickel wire can be fixed together, and conveniently welds copper wire and titanium-nickel wire.
With regard to adopting the intelligent toy of above-mentioned niti-shaped memorial alloy device, the invention provides a kind of toy tree, described titanium-nickel wire form described toy tree from vein, described copper wire forms the main lobe arteries and veins of described toy tree, described titanium-nickel wire and described copper wire form closed-loop path, and described power supply is connected with described closed-loop path via described switch.Titanium-nickel wire is formed described toy tree from vein, described copper wire forms the main lobe arteries and veins of described toy tree, by controlling the energising of described closed-loop path or power-off, can control the metamorphosis of described toy tree leaf.
Further, when above-mentioned toy tree breaker in middle closes, the closed-loop path that described power supply forms to described titanium-nickel wire and described copper wire powers, and described titanium-nickel wire temperature raises, undergo phase transition transformation when described titanium-nickel wire exceedes phase transition temperature, the leaf of described toy tree opens.The dynamic opening and closing of toy tree leaf improves the interest of toy greatly, adds the added value of toy tree.
With regard to adopting the intelligent toy of above-mentioned niti-shaped memorial alloy device, the present invention also provides a kind of toy hair style, comprise: multiple hair and a becket, described multiple hair is connected with described becket, described multiple hair adopts described copper wire and described titanium-nickel wire to be formed by laser weld, and described becket is connected with described power supply via described switch.Multiple hair and becket link together, when power supply is energized to becket, becket can generate heat, becket transfers heat to hair again, and the titanium-nickel wire in hair is heated and when temperature reaches phase transition temperature, change in shape occurs, thus hairline shapes is changed.By the closed control that can realize hairline shapes in toy hair style of switch.
Further, when above-mentioned toy hair style breaker in middle closes, described power supply powers to described becket, and described becket generates heat and transfers heat to described multiple hair, undergo phase transition transformation when the titanium-nickel wire in described multiple hair exceedes phase transition temperature, described multiple hairline shapes changes.Above-mentioned toy hair style can be increased in toy figure the interest of image.
Further, described in above-mentioned toy hair style, the intensity of variation of multiple hairline shapes is determined by conduction time and/or electrical current size.The change of multiple hair style in the scheduled time can be realized by change conduction time and/or electrical current size, increase the interest of toy.
Hinge structure, the invention provides a kind of change in shape device based on niti-shaped memorial alloy, comprise: copper wire, titanium-nickel wire and power supply, described copper wire and described titanium-nickel wire are linked together by laser weld, and described power supply is connected with described copper wire or titanium-nickel wire via a switch.Power supply is powered to copper wire and titanium-nickel wire after welding by switch control rule, makes described titanium-nickel wire produce change in shape after temperature reaches phase transition temperature, thus realizes the intelligentized control method to niti-shaped memorial alloy shape.Solve the technical problem that the shape of niti-shaped memorial alloy under variations in temperature lacks effective workaround.
Accompanying drawing explanation
In order to the clearer explanation embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the change in shape device of the niti-shaped memorial alloy that the present invention first specific embodiment provides;
Fig. 2 method flow diagram that to be the steel wire that provides of the present invention second specific embodiment carry out with titanium-nickel wire welds;
Fig. 3 is structural representation when adopting Fig. 2 method to be fixed steel wire and titanium-nickel wire;
Fig. 4 is the structural representation of the toy tree that the present invention the 3rd specific embodiment provides;
Fig. 5 is the structural representation of the toy tree leaf that the present invention the 3rd specific embodiment provides;
Fig. 6 is that a kind of that the present invention the 3rd specific embodiment provides forms by copper wire and titanium-nickel wire the structural representation that leaf set by toy;
Fig. 7 is the structural representation of the toy hair style that the present invention the 4th specific embodiment provides;
Fig. 8 is the structural representation of hair in the toy hair style that provides of the present invention the 4th specific embodiment;
Fig. 9 is the structural representation of toy hair style after toy hair style electrical current 1A 5S conduction time in the present invention the 4th specific embodiment;
Figure 10 is the structural representation of toy hair style after toy hair style electrical current 2A 5S conduction time in the present invention the 4th specific embodiment;
Figure 11 is the structural representation of toy hair style after toy hair style electrical current 2A 10S conduction time in the present invention the 4th specific embodiment.
Wherein, Reference numeral gathers as follows:
Change in shape device 100; Power supply 120; Switch 140; Titanium-nickel wire 150; Copper wire 160; NiTi pipe 180; Toy tree 200; Trunk 210; Branch 220; Leaf 230; Main lobe arteries and veins 231; From vein 232; Leaf margin 233; Toy hair style 300; Becket 310; Hair 320.
Detailed description of the invention
How providing a kind of device of energy Based Intelligent Control niti-shaped memorial alloy, is the technical problem being badly in need of solving to those skilled in the art.
In view of this, the invention provides a kind of change in shape device based on niti-shaped memorial alloy, comprise: copper wire, titanium-nickel wire and power supply, described copper wire and described titanium-nickel wire are linked together by laser weld, and described power supply is connected with described copper wire or titanium-nickel wire via a switch.Power supply is powered to copper wire and titanium-nickel wire after welding by switch control rule, makes described titanium-nickel wire produce change in shape after temperature reaches phase transition temperature, thus realizes the intelligentized control method to niti-shaped memorial alloy shape.Solve the technical problem that the shape of niti-shaped memorial alloy under variations in temperature lacks effective workaround.
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
With reference to Fig. 1, the present invention first specific embodiment provides a kind of change in shape device 100 based on niti-shaped memorial alloy, can comprise: copper wire 160, titanium-nickel wire 150 and power supply 120, described copper wire 160 is linked together by laser weld with described titanium-nickel wire 150, and described power supply 120 is connected with described copper wire 160 or titanium-nickel wire 150 via a switch 140.
In this specific embodiment, described niti-shaped memorial alloy has formula body difficult to understand and Ma Shiti two kinds of phases, and in austenite, marmem is comparatively hard and be rigidity.And under martensite, marmem is softer and be flexible.Under martensite, marmem can be out of shape because of force-extension, once be heated and exceed phase transition temperature, marmem will change austenitic state into, and marmem shrinks hardening.Marmem heats by different means.In the present embodiment, adopt electric current flow through marmem and produce heat on the resistance of marmem, described heat causes marmem to occur by martensite to austenitic change.After removal electric current, alloy begins to cool down, and returns to martensitic state.
In this specific embodiment, described copper wire 160 is linked together by laser weld with described titanium-nickel wire 150, particularly, and the setting of titanium-nickel wire 150 and copper wire 160 laser welding process parameter: peak power 1.6KW, pulsewidth 20ms, pulse energy 18.8J; Solder joint coincidence factor 60%; Protective gas (argon gas) flow 30L/min.
In this specific embodiment, if the strength of joint direct for niti-shaped memorial alloy butt welding obtained is not high, in brittle fracture feature.And copper to have fusing point low, the features such as yield strength is low, and plasticity is good, and deformability is strong, weld niti-shaped memorial alloy with copper wire 160.The intensity obtaining plumb joint is on the one hand higher, and plumb joint has good deformability on the other hand.Meanwhile, adopt niti-shaped memorial alloy in key component and be connected with copper wire 160 by laser welding technology, instead of overall structure all adopts niti-shaped memorial alloy, can lower the production cost of described change in shape device 100.
In this specific embodiment, with reference to Fig. 1, copper wire 160 and titanium-nickel wire 150 are linked together by laser weld, and the positive pole of power supply 120 is connected by wire one end with copper wire 160, and the negative pole of power supply 120 is connected via switch 140 one end with titanium-nickel wire 150 by wire.Described copper wire 160, titanium-nickel wire 150, power supply 120 and switch 140 form a loop.When switch 140 closes, above-mentioned circuit closed conducting, electric current is by titanium-nickel wire 150, and titanium-nickel wire 150 heating temp raises, and when the temperature of titanium-nickel wire 150 exceedes phase transition temperature, titanium-nickel wire 150 is formula body difficult to understand from martensite transfor mation, and titanium-nickel wire 150 shape changes.By the above-mentioned change in shape device 100 based on niti-shaped memorial alloy, when user needs the shape adjusting change in shape device 100, can be realized by close switch 140.Particularly, power supply 120 controls to power to copper wire 160 and titanium-nickel wire 150 after welding by switch 140, makes described titanium-nickel wire 150 produce change in shape after temperature reaches phase transition temperature, thus realizes the intelligentized control method to niti-shaped memorial alloy shape.
In other embodiments of the invention, the positive pole of described power supply 120 and negative pole are only connected to form loop with copper wire 160 or titanium-nickel wire 150.When being only connected with copper wire 160, when switch 140 closes, have electric current to pass through in copper wire 160, copper wire 160 generates heat and transfers heat to the titanium-nickel wire 150 be attached thereto, and titanium-nickel wire 150 produces change in shape after temperature reaches phase transition temperature.When being only connected with titanium-nickel wire 150, when switch 140 closes, have electric current to pass through in titanium-nickel wire 150, titanium-nickel wire 150 heating temp raises, after temperature reaches phase transition temperature, produce change in shape.
In the first specific embodiment provided by the invention, further, switch 140 described in the above-mentioned change in shape device 100 based on niti-shaped memorial alloy open or closed be realized by the mode of wireless remote control.
Realize opening of above-mentioned switch 140 or closed by touchless remote control mode, thus control the change based on change in shape device 100 shape of niti-shaped memorial alloy, make to become simple and fast to change in shape device 100 shape controlling.
In the first specific embodiment provided by the invention, further, described in the above-mentioned change in shape device 100 based on niti-shaped memorial alloy, copper wire can also comprise Ageing Treatment after welding with described titanium-nickel wire 150, and the condition of described Ageing Treatment is temperature 450-500 DEG C and temperature retention time 10 minutes.
In this specific embodiment, the phase transition temperature of weld metal is considerable, in order to control the phase transition temperature of above-mentioned weld metal, welds to change the content of nickel in weld metal after adopting nickel plating, then through Wetted constructures.Particularly, Ageing Treatment adopts SX3-4-13 intelligent fiber resistance furnace, and aging temp is 450 DEG C-500 DEG C, shrend after held for some time.Controlled by the phase transition temperature of this " composite algorithm " technique Resistance of Weld Metal that nickel plating and Ageing Treatment are combined.The content increasing weld metal nickel can not only increase martensitic elasticity energy, phase transition temperature can also be made to reduce, and Ageing Treatment also reduces martensitic elasticity energy while increase phase transformation resistance, phase transition temperature is caused to improve, as long as control the technological parameter of " composite algorithm " well, then can by martensitic elasticity in weld metal can and phase transformation draught control in rational scope, make the austenite of weld metal change beginning temperature As identical with mother metal with final temperature Af.Preferably, the temperature of above-mentioned Ageing Treatment controls at 450 DEG C-500 DEG C, and temperature retention time controls as 10min.
By the process of above-mentioned aging condition, the intensity of weld after described laser weld can be strengthened, to meet the Structural strength calls of the present invention to weld.
With reference to Fig. 3, the present invention second specific embodiment provides a kind of method of welding with described titanium-nickel wire 150 copper wire 160 in change in shape device 100, can comprise:
Step S100: before welding, is fixed described copper wire 160 one end to be welded and described titanium-nickel wire 150 one end by NiTi pipe 180;
Step S200: in welding process, aims at described NiTi pipe 180 and carries out laser weld by laser soldering device;
Step S300: after welding terminates, carries out Ageing Treatment by the described copper wire 160 and the described titanium-nickel wire 150 that have welded.
In this specific embodiment, with reference to Fig. 2, adopting NiTi pipe 180 to be linked together end-to-end with titanium-nickel wire 150 by copper wire 160 to be laser welded as tube connector, can laser weld be carried out when welding by aiming at welded pipe, avoid and need to adopt people for carrying out end-to-end alignment welding.The efficiency that improve welding and the accuracy of welding.
With reference to Fig. 4 and Fig. 5, the toy tree 200 that the present invention the 3rd specific embodiment provides a kind of employing the first specific embodiment to provide change in shape device, described toy tree 200 can comprise: trunk 210, branch 220 and leaf 230.Described leaf 230 can comprise: main lobe arteries and veins 231, from vein 232 and leaf margin 233.
In this specific embodiment, described titanium-nickel wire 150 form described toy tree 200 from vein 232, described copper wire 160 forms the main lobe arteries and veins 231 of described toy tree 200, described titanium-nickel wire 150 forms closed-loop path with described copper wire 160, and described power supply 120 is connected with described closed-loop path via described switch 140.
With reference to Fig. 6, in this specific embodiment, copper wire 160 and titanium-nickel wire 150 distribute and form the vein framework of leaf 230, particularly, vein framework is a closed-loop path, and vein framework is a part for full wafer leaf 230 vein texture, as seen from Figure 6, described titanium-nickel wire 150 form blade from vein 232, described copper wire 160 forms main lobe arteries and veins 231 and leaf margin 233.By controlling described vein framework loop power on/off, can the metamorphosis that 200 leaves 230 set by described toy be controlled.Described vein framework can make full wafer leaf 230 open after temperature raises, and after temperature reduces, make full wafer leaf 230 close.
In other embodiments of the invention, described copper wire 160 can form the whole main lobe arteries and veins 231 of leaf 230, and what titanium-nickel wire 150 was formed is distributed in main lobe arteries and veins 231 both sides from vein 232.Control electric current by main lobe arteries and veins 231, main lobe arteries and veins 231 generates heat and transfers heat to from vein 232, and raise from vein 232 temperature, leaf 230 opens.When after the electric current cutting through main lobe arteries and veins 231, described from the decline of vein 232 temperature, leaf 230 closes.
In the 3rd specific embodiment provided by the invention, further, when described in above-mentioned toy tree 200, switch 140 closes, described power supply 120 forms closed-loop path with described copper wire 160 to described titanium-nickel wire 150 and powers, described titanium-nickel wire 150 temperature raises, undergo phase transition transformation when described titanium-nickel wire 150 exceedes phase transition temperature, the leaf of described toy tree 200 opens.When described switch 140 disconnects, described titanium-nickel wire 150 temperature reduces, and described leaf closes.
By setting the switching of 200 leaf 230 closed conditions and open configuration to toy to the control realization of above-mentioned switch 140, the dynamic opening and closing that 200 leaves 230 set by toy improves interest and the added value of toy greatly.
With reference to Fig. 7 ~ 8, the present invention the 4th specific embodiment provides a kind of employing the first specific embodiment to provide the toy hair style 300 of change in shape device 100, can comprise: multiple hair 320 and a becket 310, described multiple hair 320 is connected with described becket 310, described multiple hair 320 is that described copper wire 160 is formed by laser weld with described titanium-nickel wire 150, and described becket 310 is connected with described power supply 120 via described switch 140.
In a particular embodiment, multiple hair 320 links together with becket 310, when power supply 120 is energized to becket 310, becket 310 can generate heat, becket 310 transfers heat to hair 320, titanium-nickel wire 150 in hair 320 is heated and when temperature reaches phase transition temperature, change in shape occurs, thus hair 320 shape is changed.
Control the case of bending of described multiple hair 320 by being energized to becket 310 in above-mentioned toy hair style 300, thus on the whole hair style is controlled.Realize the intelligentized control method to toy hair style 300.
In the 4th specific embodiment provided by the invention, further, when toy hair style 300 breaker in middle 140 closes, described power supply 120 powers to described becket 310, described becket 310 generates heat and transfers heat to described multiple hair 320, can be converted to formula body difficult to understand from Ma Shiti when the titanium-nickel wire 150 in described multiple hair 320 exceedes phase transition temperature, described multiple hair 320 shape changes.Above-mentioned toy hair style 300 can be increased in toy figure the interest of toy figure.
In the 4th specific embodiment provided by the invention, further, the intensity of variation of described multiple hair 320 shape is determined by conduction time and/or electrical current size.
With reference to Fig. 9, Figure 10 and Figure 11, in this specific embodiment, the change of multiple hair style in the scheduled time can be realized by change conduction time and/or electrical current size, increase the interest of toy.
In sum, adopt the change in shape device based on niti-shaped memorial alloy provided by the invention, power supply is powered to copper wire and titanium-nickel wire after welding by switch control rule, make described titanium-nickel wire produce change in shape after temperature reaches phase transition temperature, thus realize the intelligentized control method to niti-shaped memorial alloy shape.Solve the technical problem that the shape of niti-shaped memorial alloy under variations in temperature lacks effective workaround.
It should be noted that, each embodiment in this description all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Claims (10)
1. the change in shape device based on niti-shaped memorial alloy, it is characterized in that, comprise: copper wire, titanium-nickel wire and power supply, described copper wire and described titanium-nickel wire are linked together by laser weld, and described power supply is connected with described copper wire or titanium-nickel wire via a switch.
2. change in shape device as claimed in claim 1, is characterized in that: opening or closing of described switch is realized by the mode of wireless remote control.
3. change in shape device as claimed in claim 1, is characterized in that: the technological parameter of described laser weld is peak power 1.6KW, pulsewidth 20MS, pulse energy 18.8J, solder joint coincidence factor 60%, shield gas flow rate 30L/min.
4. change in shape device as claimed in claim 1, is characterized in that: described copper wire also comprises Ageing Treatment after welding with described titanium-nickel wire, and the condition of described Ageing Treatment is temperature 450-500 DEG C and temperature retention time 10 minutes.
5. to the method that copper wire in change in shape device described in claim 1 welds with titanium-nickel wire, it is characterized in that: before welding, described copper wire one end to be welded and described titanium-nickel wire one end are fixed by NiTi pipe; In welding process, laser soldering device is aimed at described NiTi pipe and carry out laser weld; After welding terminates, the described copper wire welded and described titanium-nickel wire are carried out Ageing Treatment.
6. the toy tree adopting change in shape device described in claim 1 to manufacture, it is characterized in that: described titanium-nickel wire form described toy tree from vein, described copper wire forms the main lobe arteries and veins of described toy tree, described titanium-nickel wire and described copper wire form closed-loop path, and described power supply is connected with described closed-loop path via described switch.
7. toy tree as claimed in claim 6, it is characterized in that: when the switch is closed, described power supply forms closed-loop path to described titanium-nickel wire and described copper wire and powers, described titanium-nickel wire temperature raises, undergo phase transition transformation when described titanium-nickel wire exceedes phase transition temperature, the leaf of described toy tree opens.
8. the toy hair style adopting change in shape device described in claim 1 to manufacture, it is characterized in that, comprise: multiple hair and a becket, described multiple hair is connected with described becket, described multiple hair adopts described copper wire and described titanium-nickel wire to be formed by laser weld, and described becket is connected with described power supply via described switch.
9. toy hair style as claimed in claim 8, it is characterized in that: when the switch is closed, described power supply powers to described becket, described becket generates heat and transfers heat to described multiple hair, undergo phase transition transformation when the titanium-nickel wire in described multiple hair exceedes phase transition temperature, described multiple hairline shapes changes.
10. toy hair style as claimed in claim 9, is characterized in that: the intensity of variation of described multiple hairline shapes is determined by conduction time and/or electrical current size.
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| CN106392324A (en) * | 2016-08-26 | 2017-02-15 | 电子科技大学 | Electric-thermal driving type connecting method for shape memory alloy and driving assembly |
| CN107757027A (en) * | 2017-11-24 | 2018-03-06 | 苏州康孚智能科技有限公司 | A kind of intelligent waterproof composite fabric |
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| US20040261411A1 (en) * | 1999-08-12 | 2004-12-30 | Macgregor Roderick | Shape-memory alloy actuators and control methods |
| CN104259663A (en) * | 2014-08-29 | 2015-01-07 | 电子科技大学 | Dissimilar material connecting method of nickel titanium shape memory alloy and copper alloy and clamp thereof |
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| CN106392324B (en) * | 2016-08-26 | 2018-11-06 | 电子科技大学 | The connection method of marmem electric-thermal drive component |
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Application publication date: 20151202 |