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11. 发明专利

JPH0439486A FIXED RING FOR SHAPE MEMORY EFFECT ALLOY JOINT 失效
公开(公告)号：JPH0439486A
公开(公告)日：1992-02-10
申请号：JP14762090
申请日：1990-06-06
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , TSUZUKI HIDEKAZU , MOGI HISASHI , MATSUBARA KAZUO
IPC分类号： F16L13/00 , F16L13/14
摘要： PURPOSE:To facilitate the connection of piping and remarkably shorten an operating time for execution by providing an opening in a part of a ring to be inserted on a piping and making the inner diameter of the ring slightly smaller than the outer diameter of the piping. CONSTITUTION:A cylindrical fixed ring 4 is provided in a part thereof with an opening 5 to be inserted on a piping 1 and the inner diameter of the ring is made slightly smaller than the outer diameter of the piping 1. The fixed ring 4 is inserted onto the specified position of the piping 1 by utilizing the opening 5 before a joint 2 is inserted on the piping 1. Then, the joint 2 is inserted at the position of the fixed ring 4, so that the joint can be simply set to a predetermined position. Thus, since the joint can be easily rapidly set to the proper position when the piping using a shape memory effect alloy joint is connected, the piping operation can be carried out for a short time even in a bad outside circumference such as a narrow place, bad circumferential place and radioactive circumference.

12. 发明专利

JPH0313551A PRODUCTION OF BIDIRECTIONAL SHAPE MEMORY COIL SPRING 失效
公开(公告)号：JPH0313551A
公开(公告)日：1991-01-22
申请号：JP14577089
申请日：1989-06-08
申请人： FURUKAWA ELECTRIC CO LTD
发明人： TSUZUKI HIDEKAZU , HORIKAWA HIROSHI , MATSUBARA KAZUO , SUZUKI YUICHI
IPC分类号： C22F1/10 , B21F35/00 , C22F1/00 , C22F1/08 , F16F1/02
摘要： PURPOSE:To obtain the spring increased in the amount of spontaneous shape change and excellent in memory characteristics by forming a shape memory alloy wire into a coil spring, applying heat treatment to the above coil spring, rewinding the coil spring in a reverse direction with respect to the axial direction, successively exiting training, and providing spring characteristic consisting of contraction at high temp. and expansion at low temp. CONSTITUTION:A coil spring 1 composed of a shape memory alloy wire is held in an expanded state and subjected to the prescribed shape memory heat treatment. Subsequently, this spring 1 is inserted around a mandrel 3 in the above state and one end of the coil 1 is fixed by means of a fixing terminal 4, and the coil spring 1 is rewound as a coil spring 1' around a mandrel 3' of the same diameter rotated in the direction of an arrow, by which the close coil spring 1' in which the order of folding is reversed is prepared. Then, the spring 1' is subjected to a training in which the spring 1' is pulled while keeping the spring diameter of the spring 1' and heating and cooling are repeated while fixing the spring 1' in the above state, by which bidirectional shape memory coil spring contracting at high temp. and expanding at low temp. can be produced.

13. 发明专利

JPH0762506A PRODUCTION OF SUPERELASTIC SPRING 失效
公开(公告)号：JPH0762506A
公开(公告)日：1995-03-07
申请号：JP22797293
申请日：1993-08-20
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , UEKI TATSUHIKO , MATSUBARA KAZUO
IPC分类号： B21F35/00 , C22C19/03 , C22F1/00 , C22F1/10
摘要： PURPOSE:To develop the excellent superelastic spring having a wide straight elastic region by forming an Ni-Ti superelastic alloy wire by final cold working at a specific reduction ratio to a spring and subjecting this spring to a heat treatment under specific temp. conditions. CONSTITUTION:The Ni-Ti alloy wire having 50.5 to 51.5 or 49.5 to 51.5 ratio of Ni:Ti by atomic % and contg =2 kinds among Fe, Co, Cr, V, Pd and Al is worked at 40 to 45% final cold reduction ratio and is then formed to the spring. This Ni-Ti alloy spring is heat treated at 200 to 450 deg.C in the atm. The excellent superelastic spring having the large threshold shearing strain of the straight elastic region and the wide straight elastic region is thus obtd.

14. 发明专利

JPH0513121A CONNECTING FASTENER FOR ELECTRONIC CIRCUIT MEMBER 失效
公开(公告)号：JPH0513121A
公开(公告)日：1993-01-22
申请号：JP18330691
申请日：1991-06-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , MATSUBARA KAZUO , TSUJIMOTO TERUAKI
IPC分类号： C22C19/03 , H01R4/01 , H01R13/03
摘要： PURPOSE:To dispense with cooling in assembling process and simplify the process by specifying the composition of a shape memory alloy used in a connecting fastener. CONSTITUTION:In a connecting fastener for electronic circuit member which performs connection by pressurizing the electronic circuit member, the material of the fastener is formed of a shape memory alloy consisting of 38.0-52.0 of Ni, 3-12% X of Nb, and the remainder of Ti in atomic%. This connecting fastener is cooled in the step of opening the fastener, but the temperature of closing a slit axially provided thereon is a room temperature or more. Therefore, the fastener can be brought to near an electronic circuit to be connected in the opened state and set thereto by heating to connect the electronic circuit part, and consequently, the assembling process can be simplified.

15. 发明专利

JPH059687A PRODUCTION OF TWO-DIRECTIONAL SHAPE MEMORY NITI ALLOY 失效
公开(公告)号：JPH059687A
公开(公告)日：1993-01-19
申请号：JP18330591
申请日：1991-06-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , MATSUBARA KAZUO , TSUJIMOTO TERUAKI
IPC分类号： C22C19/03 , C22F1/00 , C22F1/10
摘要： PURPOSE:To remarkably improve the two-directional characteristics of a two- directional shape memory NiTi alloy used for an actuator, etc., and the durability under a temp. cycle. CONSTITUTION:An NiTi alloy consisting of, by atom, 49.5-51.5% Ni and the balance Ti or 38.2-52.0% Ni,

16. 发明专利

JPH059686A PRODUCTION OF SHAPE MEMORY NITI ALLOY 失效
公开(公告)号：JPH059686A
公开(公告)日：1993-01-19
申请号：JP18330491
申请日：1991-06-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , MATSUBARA KAZUO , TSUJIMOTO TERUAKI
IPC分类号： C22C19/03 , C22F1/00 , C22F1/10
摘要： PURPOSE:To shift the martensitic transformation temp. of a shape memory NiTi allay used for a connector, etc., to the lower temp. side and the reverse transformation temp. to the higher temp. side and to obtain wide hysteresis characteristics. CONSTITUTION:An NiTi alloy consisting of, by atom, 49.5-51.5% Ni and the balance Ti, 49.5-51.5% Ni, 1%, in total, of one or more among Fe, Co, Cr, V, Pd and Al and the balance Ti or 38.0-52.0% Ni, 5-12% Cu or Nb and the balance Ti is subjected to shape memory treatment and 4-12% deformation strain is imposed in an environment at a temp. of the Ms point + 30 deg.C or below to shift the martensitic transformation temp. to the lower temp. side and the reverse transformation temp. to the higher temp. side, a shape memory NiTi alloy is produced.

17. 发明专利

JPH0492170A VALVE FOR PREVENTING OVERHEAT AND REVERSE FLOW 失效
公开(公告)号：JPH0492170A
公开(公告)日：1992-03-25
申请号：JP20482690
申请日：1990-08-01
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , SHIROYAMA KAISUKE , MATSUBARA KAZUO , MOGI HISASHI
IPC分类号： F16K31/70 , F16K15/00
摘要： PURPOSE:To avoid danger such as a burn or the like with simple structure and without increasing a cost by providing a valve having a shape memory alloy spring integrally with a check valve of at the front thereof to prevent both reverse flow and overheat. CONSTITUTION:An overheat preventing valve 12 having a valve seat 2 and a valve 3 and having a shape memory alloy spring 11, in which a shape is memorized so as to be extended at the time of overheat, inserted in front of the valve 2 is provided in front of a spring type check valve 5 in pipeline 1. A shape memory recovery temperature of this shape memory alloy spring 11 is set at a temperature more suitable for a hot-water supply system, for example, when temperature of the hot-water exceeds 50 deg.C as a dangerous temperature for burning a human body, the spring force becomes stronger than the pressure of a water flow shown with the arrow, and the spring is extended to make the valve 3 to abut on the valve seat 2 shown with a broken line, and the valve 3 is closed to cut off the supply of the overheated hot-water. Thereafter, when the temperature of the hot-water supply is lowered, the spring force of the shape memory alloy spring 11 is lowered, and the valve 3 is opened by the pressure of the water flow to supply the hot-water.

18. 发明专利

JPH0434286A SHAPE MEMORY ALLOY JOINT 失效
公开(公告)号：JPH0434286A
公开(公告)日：1992-02-05
申请号：JP14025990
申请日：1990-05-30
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HORIKAWA HIROSHI , TSUZUKI HIDEKAZU , MOGI HISASHI , MATSUBARA KAZUO
IPC分类号： F16L13/00 , F16L13/14
摘要： PURPOSE:To obtain excellent corrosion resistance by providing a long protruding part from both end parts of a joint in a liner, in the case of a shape memory alloy joint in which a pipe-shaped joint of shape memory alloy and the liner, formed of a small thickness pipe of equal material to the piping material, in an inner side of the pipe-shaped joint are arranged. CONSTITUTION:Pipes 1 are firmly tightened and connected through a liner 3 by heating a joint 2, by inserting the liner 3 of equal material to the pipes 1 into end parts of the connected pipes 1 and the joint 2, formed of a shape memory alloy, to an outer side of this liner 3. A sufficiently long protruding part 4 from both end parts of the joint 2 of the shape memory alloy is provided in the liner 3. The protruding part 4 of the liner 3 is formed into a flange part 5 of thickness larger than the center part of the liner 3, and it is formed by providing slits 6 radially in the perphery of the flange part 5. As a result, excellent corrosion resistance is provided relating not only to fluid circulated in the pipe but also to an external environment of the pipe.

19. 发明专利

JPH03162540A NI-TI SERIES SHAPE MEMORY ALLOY THIN FILM AND ITS MANUFACTURE 失效
公开(公告)号：JPH03162540A
公开(公告)日：1991-07-12
申请号：JP30297689
申请日：1989-11-21
申请人： FURUKAWA ELECTRIC CO LTD
发明人： TSUZUKI HIDEKAZU , HORIKAWA HIROSHI , MATSUBARA KAZUO , SUZUKI YUICHI
IPC分类号： C23C14/14 , C22C19/03
摘要： PURPOSE:To obtain the shape memory alloy thin film having a prescribed compsn. and transformation temp. by using an Ni-Ti series alloy in which the precipitates of Ti2Ni are uniformly dispersed as a target material and regulating its film thickness into a prescribed one by a sputtering method. CONSTITUTION:An Ni-Ti series shape memory alloy in which the precipitates of Ti2Ni are uniformly dispersed and constituted of, by weight, 44 to 50% Ni and the balance Ti is used as a target material. By using the target material, a thin film is formed on a substrate by a sputtering method. Then, the Ni-Ti series shape memory alloy thin film constituted of 49 to 51.5% Ni and the balance Ti and having 1mum to 1mm film thickness can be obtd.

20. 发明专利

JPH09183184A PREPARATION OF ALUMINUM ALLOY LAMINATED MATERIAL 失效
公开(公告)号：JPH09183184A
公开(公告)日：1997-07-15
申请号：JP10658696
申请日：1996-04-26
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SHIROSHITA HIDENORI , MATSUBARA KAZUO , NAKAI YASUTO
IPC分类号： B23K20/04 , B32B15/01 , C22F1/00 , C22F1/04
摘要： PROBLEM TO BE SOLVED: To improve accuracy in the thicknesses of constitutional materials of a laminated material constituted of aluminum alloys with different deformation resistances when lamination rolling is performed and to improve yield of the manufacturing and the quality. SOLUTION: In a preparation of a laminated material constituted of aluminum alloy materials with different mechanical properties and prepd. by using an aluminum alloy with higher strength as a core material and covering one face or both faces with at least one layer of aluminum alloy with strength being lower than that of the core material, a recessed conditions are formed on the laminating faces of the core material and after skin materials are assembled on the recessed parts, the assembled materials are hot-rolled at a temp. of 300-550 deg.C to prepare an aluminum alloy laminated material consisting of at least two layers.

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