WO2003050320A1 - Alliage a memoire de forme a differentes temperatures de transformation au niveau de differentes parties et sa fabrication - Google Patents

Alliage a memoire de forme a differentes temperatures de transformation au niveau de differentes parties et sa fabrication Download PDF

Info

Publication number
WO2003050320A1
WO2003050320A1 PCT/CN2002/000817 CN0200817W WO03050320A1 WO 2003050320 A1 WO2003050320 A1 WO 2003050320A1 CN 0200817 W CN0200817 W CN 0200817W WO 03050320 A1 WO03050320 A1 WO 03050320A1
Authority
WO
WIPO (PCT)
Prior art keywords
memory alloy
temperature
different
alloy material
cooling
Prior art date
Application number
PCT/CN2002/000817
Other languages
English (en)
Chinese (zh)
Inventor
Liying Zhang
Original Assignee
Beijing Tc Weiye Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Tc Weiye Ltd. filed Critical Beijing Tc Weiye Ltd.
Priority to AU2002349431A priority Critical patent/AU2002349431A1/en
Publication of WO2003050320A1 publication Critical patent/WO2003050320A1/fr

Links

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 relates to a memory alloy that changes with temperature and a manufacturing method thereof.
  • memory alloys have been widely used in various fields such as aerospace, automatic control, clothing toys, medical equipment, and electrical components.
  • shape memory alloys currently developed and applied are only one-way memory alloys and two-way memory alloys.
  • One-way memory alloys, gp After a certain heat treatment, the object completely recovers the shape of the parent phase before deformation during the inverse martensitic transformation.
  • the macro performance is: when the temperature rises to a certain temperature, it completely returns to the "memory state".
  • the two-way memory alloy can make the object undergo a certain heat treatment to completely return to the shape of the parent phase before deformation during the inverse martensitic transformation, and spontaneously produce a shape change during the martensitic transformation to return to horse
  • the shape of the austenite state has two memories of temperature.
  • one-way memory alloys and two-way memory alloys have one common feature: they can only have shape memory relative to one temperature or two temperatures, and have obvious limitations in practical applications.
  • An object of the present invention is to provide a memory alloy that changes with temperature.
  • the temperature-dependent memory alloy of the present invention has multiple or continuous memory states, which change with temperature changes, broadening the application range of the memory alloy, and is particularly suitable for various temperature control occasions.
  • Another object of the present invention is to provide a method for manufacturing the memory alloy that changes with temperature.
  • the memory alloy that changes with temperature has multiple or continuous memory states that change with temperature.
  • the material of the temperature-change memory alloy of the present invention is a common memory alloy material, and the present invention! 3 ⁇ 4
  • the temperature-change memory alloy is different from the ordinary memory alloy, not having one or two memory states, but having multiple or continuous memory states Memory state.
  • the memory temperature of a shape memory alloy is determined by the transformation temperature of martensite, and the transformation temperature of martensite of the same alloy material is determined by the heat treatment method in the alloy memory treatment. According to this principle, the temperature-dependent memory alloy of the present invention is made by the following three methods?
  • the first method for preparing the temperature-dependent memory alloy of the present invention includes the following steps:
  • the second method for preparing the temperature-dependent memory alloy of the present invention includes the following steps:
  • cooling is performed. During the cooling process, multiple or various points on the memory alloy material are placed at different cooling rates. After cooling, the memory alloy is changed with temperature.
  • the third method for preparing the temperature-dependent memory alloy of the present invention includes the following steps:
  • cooling is performed. During the cooling process, multiple or various points on the memory alloy material are placed at different cooling rates. After cooling, the memory alloy is changed with temperature.
  • the above second or third method for preparing the temperature-dependent memory alloy of the present invention in the process of making a plurality of points or points on the memory alloy material at different cooling rates, it is used to make the memory alloy material Cooling in multiple places or at different points under different temperature conditions.
  • the second or third method for preparing the temperature-dependent memory alloy of the present invention in the process of making a plurality of places on the memory alloy material at different cooling rates, it is adopted to make the places of the memory alloy material at different temperatures Cooling in a medium-dependent manner.
  • multiple points on the memory alloy material or points at different temperature conditions can be used for cooling.
  • Figure 1-1 Schematic diagram of cooling by using multiple locations of the memory alloy material under different temperature conditions
  • Figure 1-12 is the trapezoidal change diagram of each temperature in Figure 1-11
  • Figure 2 is a schematic diagram of cooling by using a plurality of places of the memory alloy material under different media conditions.
  • Figure 3-1 is a schematic diagram of holding multiple places on the memory alloy material at different heating temperatures for heat preservation.
  • Figure 2-3 is a diagram of the temperature change to a trapezoid in Figure 3-1.
  • the processed memory alloy material is made into a rod 4, which is firstly fed into a holding furnace at 550 ° C. After heating for 30 minutes, the three parts of the rod 4 are respectively placed at three different temperatures, as shown in Figure 1-1, where the temperature of the holding furnace 1 is 550 ° C, and the temperature of the heating zone 2 The temperature was 400 ° C, and the temperature of the ice-water mixture in container 3 was' 0 ° C. Obviously, the temperature of the whole rod 4 from ab, b-c, and c_d is three different temperatures, and the temperature varies trapezoidally, as shown in Figure 1-2. Then, the holding furnace 1 is from 550 ⁇ , and the heating zone 2 is from 40CTC.
  • the product of the present invention has different martensite transformation temperatures due to the different cooling rates of the various stages on the rod 4, and there are three different martensite transformation temperatures in the various stages on the rod 4. Martensite transformation temperature point. At a certain low temperature, the rod 4 is bent. When the temperature rises, with the temperature change, each section on the rod 4 completely returns to the shape of the parent phase before deformation. Macroscopically, as the temperature of the entire rod 4 rises, each segment will return to the memory shape state as the temperature changes.
  • the three-stage temperature can also be replaced by a continuously changing temperature, and the effect is that each stage on the rod continuously returns to its original state as the temperature rises.
  • the spring 5 is made from the processed memory alloy material.
  • the spring 5 is first heated and held at 55CTC in a holding furnace. After the temperature is maintained for 30 minutes, the three parts of the spring 5 are placed in three different media. As shown in FIG. 2, gp, the upper part of the spring 5 is in the air 6, the middle part of the spring 5 is in the oil 7, and the lower part of the spring 5 is in the water 8, because the three media are sufficiently large relative to the spring 5 This can ensure that the two adjacent media will not cause mixing due to temperature rise.
  • the entire spring 5 is located in three different media from a2 to b2, b2 to c2, and c2 to d2, so that the cooling rate of each segment of the spring 5 is different, and finally the entire spring 5 is at a normal temperature state, that is,
  • the products of the present invention have different cooling rates at different stages due to different cooling media, which results in different phase transformation temperatures. Therefore, there are three martensite transformation temperature points in the process of reverse martensite transformation.
  • the spring 5 is stretched arbitrarily. When the temperature rises and reaches the corresponding phase transition temperature, with the temperature change, each section of the spring 5 completely returns to the shape and length before deformation.
  • this embodiment In the application, if the medium is changed in multiple layers, it can form a continuously changing martensite transformation temperature. The effect is: when the temperature rises, the spring can continuously recover the original length.
  • An open ring 9 is made of the processed memory alloy material.
  • the 1/3 open ring 9 is placed in a vacuum environment with a temperature of 45CTC, and the 1/3 open ring 9 is placed in a vacuum environment with a temperature of 500 ° C
  • the 1/3 open ring 9 is placed in a vacuum environment at a temperature of 550 ° C, as shown in Figure 3-1.
  • the entire open ring 9 is composed of a3-b3, b3-c3, and c3-d3.
  • the open ring 9 Due to the difference in heat treatment temperature, different sections of the martensite transformation temperature are formed in each section of the open ring 9, and there are three martensite transformation temperature points in the process of reverse martensite transformation.
  • the open ring 9 is deformed at room temperature by changing its wire diameter. When the temperature rises, the upper three sections of the open ring 9 will gradually return to their original shape.
  • the three-stage temperature in this embodiment can also be replaced by a continuous temperature change from 450 ° C to 550 ° C. The effect is that the open ring 9 continuously returns to its original shape as the temperature rises.
  • Memory alloys with temperature changes will be widely applicable to various forms of materials such as wire, pipe, rod, and sheet.
  • the shape memory effect is not limited to the memory of only one temperature point or two temperature points, but The difference in shape temperature memory of each point on the same memory alloy material is achieved, so that the entire material has a continuously variable shape memory effect on changing temperatures. This is also the most significant feature of memory alloys with temperature changes compared to other types of memory alloys. Under different temperature states, this memory alloy can utilize the inconsistencies of the shape memory state restored at various points on the material to achieve different shapes and complete the functions of different occasions.
  • the memory alloy With the change of temperature, the memory alloy has excellent physical and chemical properties and excellent biocompatibility. Its tensile strength, fatigue strength, shear strength, and impact toughness are significantly better than ordinary stainless steel, and its biocompatibility is far better than stainless steel and Cobalt alloy, therefore, this memory alloy will be widely used in water valve constant temperature, water mixer temperature control, greenhouse temperature control, solar water heater, heating temperature control, cooling system temperature control, temperature indicator, and other low cost
  • the temperature-dependent memory alloy can be used as a temperature sensor and a temperature controller, which can greatly simplify the temperature control system.
  • the engineering process is stable and reliable and does not require the use of electrical energy. It will also be widely used in toys, medical equipment, aerospace, electrical components and other fields. If the above-mentioned memory alloy material is formed, each part of the material is subjected to different forming processes according to different requirements, so that the shape memory alloy can have a wider range of applications. '

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un produit constitué d'alliage à mémoire de forme possédant différentes températures de transformation au niveau de différentes parties. Ledit produit est fabriqué par traitement thermique de parties de l'alliage à mémoire de forme dans des conditions de traitement à différentes températures ou différentes vitesses de refroidissement.
PCT/CN2002/000817 2001-11-20 2002-11-18 Alliage a memoire de forme a differentes temperatures de transformation au niveau de differentes parties et sa fabrication WO2003050320A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002349431A AU2002349431A1 (en) 2001-11-20 2002-11-18 Shape memory alloy having different transformation temps. at different parts and manufacture thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01139946.5 2001-11-20
CNB011399465A CN100478459C (zh) 2001-11-20 2001-11-20 随温度变化记忆合金及其制作方法

Publications (1)

Publication Number Publication Date
WO2003050320A1 true WO2003050320A1 (fr) 2003-06-19

Family

ID=4675543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000817 WO2003050320A1 (fr) 2001-11-20 2002-11-18 Alliage a memoire de forme a differentes temperatures de transformation au niveau de differentes parties et sa fabrication

Country Status (3)

Country Link
CN (1) CN100478459C (fr)
AU (1) AU2002349431A1 (fr)
WO (1) WO2003050320A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102787285B (zh) * 2012-08-16 2014-02-12 北京航空航天大学 一种获得sma材料双程记忆效应的热处理方法
CN106014895A (zh) * 2016-05-17 2016-10-12 韩伟 一种不用电的温敏驱动器
CN110793207A (zh) * 2018-08-01 2020-02-14 青岛海尔智能技术研发有限公司 一种用于检测热水余量的装置、热水器及智能家居系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59219443A (ja) * 1983-05-28 1984-12-10 Daido Steel Co Ltd 多変化型形状記憶合金及びその製造法
JPS63223138A (ja) * 1987-03-12 1988-09-16 Tokin Corp 医療用ガイドワイヤ及び医療用カテーテル
JPH08232054A (ja) * 1996-03-25 1996-09-10 Tokin Corp 形状記憶合金コイルばね及びその製造方法
JPH09176765A (ja) * 1996-12-13 1997-07-08 Tokin Corp 衣料品用形状記憶合金線

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59219443A (ja) * 1983-05-28 1984-12-10 Daido Steel Co Ltd 多変化型形状記憶合金及びその製造法
JPS63223138A (ja) * 1987-03-12 1988-09-16 Tokin Corp 医療用ガイドワイヤ及び医療用カテーテル
JPH08232054A (ja) * 1996-03-25 1996-09-10 Tokin Corp 形状記憶合金コイルばね及びその製造方法
JPH09176765A (ja) * 1996-12-13 1997-07-08 Tokin Corp 衣料品用形状記憶合金線

Also Published As

Publication number Publication date
CN1420183A (zh) 2003-05-28
CN100478459C (zh) 2009-04-15
AU2002349431A1 (en) 2003-06-23

Similar Documents

Publication Publication Date Title
JP6366601B2 (ja) チタン合金を処理するための方法
KR100807393B1 (ko) Ｔｉ－Ｎｉ계 경사기능 합금의 제조방법 및 그로부터제조된 Ｔｉ－Ｎｉ계 경사기능 합금
CN100529147C (zh) 热型连铸获得的铜基形状记忆合金的超弹记忆热处理方法
WO2003050320A1 (fr) Alliage a memoire de forme a differentes temperatures de transformation au niveau de differentes parties et sa fabrication
CN105886719A (zh) 一种16Mn无缝钢管管坯加热控制方法
Kim et al. Development of a NiTi actuator using a two-way shape memory effect induced by compressive loading cycles
JPS62188765A (ja) 熱回収熱交換器に好適な耐熱合金の製法
CN110016543B (zh) 一种增强Ni47Ti44Nb9合金管接头形状记忆性能的方法
CN110373523A (zh) 一种90公斤级焊丝用钢热处理软化方法
CN110373524A (zh) 一种90公斤级焊丝用钢热处理软化工艺
CN102363833A (zh) 一种在线制造相变诱发塑性钢无缝管的方法
Jeong et al. Simulation of electric upsetting and forging process for large marine diesel engine exhaust valves
Kumar et al. Understanding hot workability and flow stress prediction through processing map with microstructural correlation for HY85 steel
JPS61183455A (ja) Ｎｉ−Ｔｉ系形状記憶材の製造法
JP3755032B2 (ja) 二方向性が要求される部位に用いるための形状記憶合金ワイヤおよびその製造方法
Pan Factors affecting final part shaping
KR101783107B1 (ko) 오스테나이트와 마르텐사이트의 2상 조직을 갖는 스테인리스강
JPS61106740A (ja) 可逆形状記憶効果を有するＴｉ−Ｎｉ系合金およびその製造方法
CN109234496A (zh) 一种不锈钢丝的制作方法
KR101054642B1 (ko) 고 강도 페라이트/마르텐사이트 강의 제조방법
JP2007501327A5 (fr)
CN1281514A (zh) 不锈的结构钢及其制备方法
JP2724815B2 (ja) 形状記憶合金コイルばね及びその製造方法
JPS59162262A (ja) 二方向形状記憶効果を有するバネの製造方法
RU2232197C1 (ru) Способ получения высокопрочных стальных тонкостенных изделий точных геометрических размеров и устройство для его реализации

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP