EP0086011A2 - Procédé pour la réalisation d'un effet réversible de mémoire à deux voies dans un organe en un alliage exhibant un effet à une voie - Google Patents
Procédé pour la réalisation d'un effet réversible de mémoire à deux voies dans un organe en un alliage exhibant un effet à une voie Download PDFInfo
- Publication number
- EP0086011A2 EP0086011A2 EP83200127A EP83200127A EP0086011A2 EP 0086011 A2 EP0086011 A2 EP 0086011A2 EP 83200127 A EP83200127 A EP 83200127A EP 83200127 A EP83200127 A EP 83200127A EP 0086011 A2 EP0086011 A2 EP 0086011A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- way
- effect
- spring
- way effect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/006—Resulting in heat recoverable alloys with a memory effect
Definitions
- the invention is based on a method for generating a two-way memory effect according to the preamble of claim 1.
- the invention is based on the object of specifying a method for components made of an alloy which normally only shows a one-way effect in order to induce a considerable reversible two-way memory effect in these components, at least in the operating state.
- the figure shows
- a frame or yoke
- a helical spring 2 made of a memory alloy showing only a one-way effect and a conventional spring 3 is installed.
- the springs 2 and 3 are connected to each other by a movable element 4 (armature), the function of which is to transmit its movement to a display device, a trigger mechanism or a force transmission element.
- the springs 2 and 3 and element 4 are in the basic position, i.e. drawn in a completely relaxed state. When heated, the movable element assumes position 5, in order to return to position 4 with subsequent cooling. This is indicated by the corresponding arrows.
- Diameter and 25 mm measuring length worked out.
- This test bar was subjected to a tensile stress in the longitudinal direction and stretched such that it had a total elongation of 3%. The load required for this expansion was then reduced to a level that only a tensile stress of 200 MPa was effective on the cross-section of the rod.
- the test bar was heated to a temperature of 250 ° C. A contraction in the longitudinal direction of 0.7% was observed, which corresponded to the one-way memory effect. After the subsequent cooling to room temperature, an extension of the test rod in the longitudinal direction by 0.3% was determined, that is to say a two-way memory effect. Further temperature cycles between room temperature and 250 ° C showed the effects to be completely repeatable, which proved that there was a reversible two-way effect.
- the alloy was transferred to a band 2.5 mm thick by hot rolling. Then test strips of square cross section 2.5 x 2.5 mm and 35 mm long were cut out of this strip and solution-annealed at 950 ° C. for 15 minutes and quenched in water. The test bars were then subjected to a bending stress such that the outer fiber suffered an elongation of 5%. Then a test bar was clamped into a measuring device determining the deflection (deflection) and subjected to a temperature cycle between 20 ° C and 250 ° C under various mechanical loads exerting a transverse force in a positive or negative direction. It was found that practically no two-way effect could be found under zero load.
- a wire with a diameter of 1 mm was produced from the material according to Example II using conventional methods and wound into a coil spring with a coil diameter of 14 mm.
- This spring was solution annealed at 900 ° C for 10 minutes and quenched in water.
- the coil spring was deformed by a critical amount in order to bring it into the condition necessary for the memory effect.
- the coil spring 2 made of memory alloy and an ordinary spring 3 were installed coaxially and without pretension.
- the movable element 4, which can be used to transmit a measured value or a force, served as the connection between 2 and 3.
- the individual parts 2, 3 and 4 are drawn in the basic position. When heated to approximately 200 ° C, the spring 2 expanded and compressed the spring 3, which thus exerted a variable counterforce on 2.
- the movable element 5 is drawn in the deflected position after heating (direction of movement: dashed arrow). When it cooled down, 2 contracted again and the movable element returned to the basic position corresponding to 4 (direction of movement: solid arrow). This cycle could be repeated any number of times, what that Proven presence of a reversible two-way effect in the whole of the assembled component.
- a component made of any memory alloy can be used which, under normal conditions, i.e. only shows a one-way effect with free, unimpeded movement.
- care must be taken that a force is exerted on the component which results in an internal tension which counteracts the one-way effect. This can be done by applying an external load in the form of a counterweight, a spring, etc.
- the memory alloy component can have the shape of a tension, compression, bending or torsion bar (also in the form of a helical spring).
- the preload impressed on the outside can be constant or variable depending on the purpose of the use of the component.
- the main alloys are Cu / Al / Ni, Cu / Al, Cu / Zn / Al, Ti / V, Ti / Nb, Ni / Ti and Ni / Ti / Cu memory alloys.
- the method according to the invention makes it possible to induce a well-known two-way effect in a component that normally has no or only an insignificant two-way memory effect. This opens up a further, practically important area of use in relay, switch and temperature release construction for an important alloy class.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Springs (AREA)
- Display Devices Of Pinball Game Machines (AREA)
- Semiconductor Memories (AREA)
- Control Of El Displays (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
- Toys (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83200127T ATE23568T1 (de) | 1982-02-05 | 1983-01-26 | Verfahren zur erzeugung eines reversiblen zweiweg-gedaechtniseffektes in einem bauteil aus einer einen einwegeffekt zeigenden legierung. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH704/82 | 1982-02-05 | ||
| CH704/82A CH659481A5 (de) | 1982-02-05 | 1982-02-05 | Verfahren zur erzeugung eines reversiblen zweiweg-gedaechtniseffekts in einem bauteil aus einer einen einwegeffekt zeigenden legierung. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0086011A2 true EP0086011A2 (fr) | 1983-08-17 |
| EP0086011A3 EP0086011A3 (en) | 1983-09-28 |
| EP0086011B1 EP0086011B1 (fr) | 1986-11-12 |
Family
ID=4193225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83200127A Expired EP0086011B1 (fr) | 1982-02-05 | 1983-01-26 | Procédé pour la réalisation d'un effet réversible de mémoire à deux voies dans un organe en un alliage exhibant un effet à une voie |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4405387A (fr) |
| EP (1) | EP0086011B1 (fr) |
| JP (1) | JPS58144461A (fr) |
| AT (1) | ATE23568T1 (fr) |
| CH (1) | CH659481A5 (fr) |
| DE (1) | DE3367624D1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501650A1 (de) * | 1985-01-19 | 1986-07-24 | Diehl GmbH & Co, 8500 Nürnberg | Sicherungseinrichtung, insbesondere fuer minen |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59179767A (ja) * | 1983-03-30 | 1984-10-12 | Sumitomo Special Metals Co Ltd | 可逆形状記憶素子の製造方法 |
| JPS59230189A (ja) * | 1983-06-13 | 1984-12-24 | 松下電器産業株式会社 | 熱感応装置 |
| EP0192475A3 (fr) * | 1985-02-20 | 1987-02-04 | Sampson, Ronald Spencer | Activeur automatique de fermeture |
| US4887430A (en) * | 1988-12-21 | 1989-12-19 | Eaton Corporation | Bistable SME actuator with retainer |
| US5344506A (en) * | 1991-10-23 | 1994-09-06 | Martin Marietta Corporation | Shape memory metal actuator and cable cutter |
| US5312152A (en) * | 1991-10-23 | 1994-05-17 | Martin Marietta Corporation | Shape memory metal actuated separation device |
| US5842312A (en) * | 1995-03-01 | 1998-12-01 | E*Sorb Systems | Hysteretic damping apparati and methods |
| US5769973A (en) * | 1995-11-09 | 1998-06-23 | Smith, Jr.; Robert P. | High performance automotive clutch with modified pressure plate for sustained increased spring force |
| US6149742A (en) * | 1998-05-26 | 2000-11-21 | Lockheed Martin Corporation | Process for conditioning shape memory alloys |
| US6342314B1 (en) | 1998-12-18 | 2002-01-29 | Aer Energy Resources, Inc. | Geometry change diffusion tube for metal-air batteries |
| US6350537B1 (en) | 1998-12-18 | 2002-02-26 | Aer Energy Resources, Inc. | Load responsive air door for an electrochemical cell |
| US6436564B1 (en) | 1998-12-18 | 2002-08-20 | Aer Energy Resources, Inc. | Air mover for a battery utilizing a variable volume enclosure |
| US6475658B1 (en) | 1998-12-18 | 2002-11-05 | Aer Energy Resources, Inc. | Air manager systems for batteries utilizing a diaphragm or bellows |
| US6824915B1 (en) | 2000-06-12 | 2004-11-30 | The Gillette Company | Air managing systems and methods for gas depolarized power supplies utilizing a diaphragm |
| GB2431720B (en) * | 2005-10-26 | 2007-12-19 | Rolls Royce Plc | Actuator |
| US20090123996A1 (en) * | 2007-11-12 | 2009-05-14 | Milton Chin | Vitrification Device with Shape Memory Seal |
| US20090123992A1 (en) * | 2007-11-12 | 2009-05-14 | Milton Chin | Shape-Shifting Vitrification Device |
| US20090120106A1 (en) * | 2007-11-12 | 2009-05-14 | Milton Chin | Temperature Alert Device for Cryopreservation |
| JP2009222040A (ja) * | 2008-03-19 | 2009-10-01 | Olympus Corp | 形状記憶合金アクチュエータ |
| JP5903153B1 (ja) * | 2014-12-10 | 2016-04-13 | 株式会社アドバネクス | バネ材、加圧ローラ、及びカッターローラ |
| CN109226298B (zh) * | 2018-10-17 | 2019-12-24 | 江苏南京白马现代农业高新技术产业园有限公司 | 一种五金板拉伸装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285470A (en) * | 1963-07-05 | 1966-11-15 | Yeda Res & Dev | Thermally actuated devices |
| US3748197A (en) * | 1969-05-27 | 1973-07-24 | Robertshaw Controls Co | Method for stabilizing and employing temperature sensitive material exhibiting martensitic transistions |
| US3740839A (en) * | 1971-06-29 | 1973-06-26 | Raychem Corp | Cryogenic connection method and means |
| US3977913A (en) * | 1972-12-01 | 1976-08-31 | Essex International | Wrought brass alloy |
| JPS5818427B2 (ja) * | 1974-07-05 | 1983-04-13 | 大阪大学長 | 繰り返し形状記憶性を有する金属物品の製法 |
| US4036669A (en) * | 1975-02-18 | 1977-07-19 | Raychem Corporation | Mechanical preconditioning method |
| FR2344639A1 (fr) * | 1976-03-18 | 1977-10-14 | Raychem Corp | Nouveaux alliages aptes a la reprise thermique |
| GB1600000A (en) * | 1977-01-24 | 1981-10-14 | Raychem Ltd | Memory metal member |
| SU638622A1 (ru) * | 1977-05-25 | 1978-12-25 | Ленинградский Ордена Ленина И Ордена Трудового Красного Знамени Государственный Университет Им.А.А.Жданова | Способ обработки дл получени механической пам ти в стал х и сплавах |
| JPS5511740A (en) * | 1978-07-06 | 1980-01-26 | Kenzou Sugimoto | Adapter for screwing anchor and screwing method |
-
1982
- 1982-02-05 CH CH704/82A patent/CH659481A5/de not_active IP Right Cessation
- 1982-07-27 US US06/402,230 patent/US4405387A/en not_active Expired - Fee Related
-
1983
- 1983-01-26 DE DE8383200127T patent/DE3367624D1/de not_active Expired
- 1983-01-26 EP EP83200127A patent/EP0086011B1/fr not_active Expired
- 1983-01-26 AT AT83200127T patent/ATE23568T1/de not_active IP Right Cessation
- 1983-02-04 JP JP58016312A patent/JPS58144461A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501650A1 (de) * | 1985-01-19 | 1986-07-24 | Diehl GmbH & Co, 8500 Nürnberg | Sicherungseinrichtung, insbesondere fuer minen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144461A (ja) | 1983-08-27 |
| DE3367624D1 (en) | 1987-01-02 |
| ATE23568T1 (de) | 1986-11-15 |
| EP0086011A3 (en) | 1983-09-28 |
| CH659481A5 (de) | 1987-01-30 |
| US4405387A (en) | 1983-09-20 |
| EP0086011B1 (fr) | 1986-11-12 |
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