WO1999052667A1 - Produit a memoire de forme/superelastique et procede de fabrication associe - Google Patents

Produit a memoire de forme/superelastique et procede de fabrication associe Download PDF

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Publication number
WO1999052667A1
WO1999052667A1 PCT/JP1999/001929 JP9901929W WO9952667A1 WO 1999052667 A1 WO1999052667 A1 WO 1999052667A1 JP 9901929 W JP9901929 W JP 9901929W WO 9952667 A1 WO9952667 A1 WO 9952667A1
Authority
WO
WIPO (PCT)
Prior art keywords
shape memory
superelastic
metal
base layer
layer
Prior art date
Application number
PCT/JP1999/001929
Other languages
English (en)
Japanese (ja)
Inventor
Kaoru Tokumaru
Original Assignee
Kabushiki Kaisha Sanmei
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 Kabushiki Kaisha Sanmei filed Critical Kabushiki Kaisha Sanmei
Publication of WO1999052667A1 publication Critical patent/WO1999052667A1/fr

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Classifications

    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts

Definitions

  • the present invention relates to a shape memory Z superelastic article and a method of manufacturing the same.
  • a shape memory / superelastic member for example, an eyeglass temple
  • the present invention relates to a shape memory / superelastic article brazed to metal and a method for producing the same.
  • shape memory Z superelastic alloys Ni-Ti alloys, Ni-Ti-Co alloys, Ni-Ti-Cu alloys, etc.
  • products that combine a shape memory Z super-elastic member with a metal or alloy are used in various fields such as eyeglass frames, orthodontic wires, implants, medical catheters, stents, and women's underwear (bras). Used in.
  • FIG. 6 (a) is an explanatory diagram showing the stress-strain characteristics of the shape memory alloy, when the Ni--Ti alloy and the like after shape memory processing are deformed by an external force below the shape recovery temperature. This shows that heating this to the shape recovery temperature or higher returns the shape of the shape memory alloy to its original shape.
  • Austenitic phase at higher temperature than shape recovery temperature transforms to martensite phase below shape recovery temperature
  • the shape memory alloy in the martensite phase can be easily applied by external force. Deform.
  • Fig. 6 (b) is a sharp diagram showing the stress-strain characteristics of the superelastic alloy, and when the alloy is deformed by applying an external force in an environment above the shape recovery temperature, the original shape is removed. To return to.
  • shape memory Z superelastic material a wire material made of shape memory superelastic alloy material before commercialization is described as “shape memory Z superelastic material”, and this shape memory Z superelastic material is subjected to arbitrary processing to obtain a product shape This is referred to as “shape memory Z super elastic member”.
  • a manufacturing method is used in which the part to be joined is inserted into a metal sleeve and then the metal sleeve is caulked. .
  • Fig. 7 and Fig. 8 show a conventional eyeglass frame (shape memory / superelastic article) using shape memory Z superelastic material for parts such as crane, bridge, reinforcement, pad, etc.
  • 20 is a shape memory superelastic material
  • 21 is a vine
  • 22 is a metal sleeve
  • 23 and 24 are hinge pieces
  • 25 is a screw
  • 26 is a rim
  • 27 is an L-shape.
  • 28 is the upper protruding part
  • 29 is the lower protruding part
  • 30 is a screw
  • 31 is a ridge
  • 32 is a reinforcement
  • 33 is a nasal pad
  • 34 is a nasal pad holding part.
  • 35 indicate pad wires, respectively.
  • the crane 21, the reinforcing arm 32, the pad wire 35, etc. are made of a super-elastic alloy
  • the hinge pieces 23, the rim 26, etc. are made of metal.
  • the individual metal sleeves 2 2 are made of a super-
  • the rim 26 is made of a shape memory Z superelastic alloy, and the bridge 31, the reinforcing arm 32, the pad wire 35 and the like are made of metal.
  • FIG. 8 is an explanatory diagram showing a procedure for producing a hinge with a hinge piece, and the contents are as follows.
  • the productivity is remarkably reduced, and the appearance of each connection portion is made of metal.
  • the appearance of the sleeve restricts the design, and furthermore, impairs the appearance.
  • the connection may be easily detached.
  • a product made of a shape memory / superelastic alloy containing nickel, etc. it is used with the nickel exposed. Therefore, the user Therefore, there is a problem such as the possibility of causing skin allergy to nickel. Therefore, in the present invention, when connecting the shape memory / superelastic member and the metal by brazing, at least the object to be brazed of the shape memory superelastic member is used.
  • a metal base layer for example, T i or N i
  • the purpose is to make the attachment part look good.
  • the present invention uses a shape memory superelastic article having the following configuration.
  • a metal base layer for brazing is formed on at least a part to be brazed of the shape memory / superelastic member.
  • a method for manufacturing a shape memory Z superelastic article having the following configuration is used. ⁇ ⁇ ⁇ ⁇
  • a metal base layer for brazing is formed on at least a brazing target portion of the shape memory Z super-elastic member. And brazing the metal base layer and the metal.
  • An insulating layer for preventing a reaction between the shape memory Z super-elastic member and the metal base layer is formed at least in a portion to be brazed of the shape memory Z super-elastic member.
  • shape memory superelastic member When forming the shape memory superelastic member from the shape memory Z superelastic material by die processing, a mold protection layer is formed in advance on the shape memory Z superelastic material.
  • shape memory Z super-elastic article manufacturing method These shape memory / super-elastic article and its manufacturing method,
  • the shape memory Z superelastic member after molding does not seize to the mold even by heat treatment during mold molding (press molding) of the shape memory superelastic material.
  • the shape memory Z super elastic member is easily separated from the mold. Can be removed.
  • FIG. 1 is an explanatory view showing a shape memory Z superelastic article obtained by brazing a shape memory Z superelastic member and a metal part, and a preparation procedure thereof, showing a cross-sectional state of each component.
  • FIG. 2 is an explanatory diagram showing a procedure for brazing a shape memory Z superelastic member and a metal part.
  • FIG. 3 is an explanatory diagram showing a combination example of a shape memory Z superelastic alloy, an insulating layer, a metal base layer, and a mold protection layer.
  • FIG. 4 is an explanatory view showing a procedure for brazing a shape memory Z superelastic member and a metal hinge piece.
  • FIG. 5 is an explanatory view showing an embodiment in which a titanium sheath-like portion is brazed to the end face side (exposed nickel portion) of the bridge when the ridge and the rim of the shape memory superelastic member are brazed.
  • 1 is the shape memory of the wire before press forming made of nickel-titanium alloy.
  • ⁇ is shape memory / super elastic part after press forming made of nickel-titanium alloy Lumber
  • 6 is a plate-shaped three-layer structure after removing the mold protection layer from the four-layer structure after press molding.
  • 9 is a four-layered vine after press molding and shape memory processing
  • 9a is a three-layered vine after removing the outermost mold protection layer 4 of the four-layered structure
  • 11 is a bridge composed of a three-layer structure 6, 11a is the end surface of the bridge 11 (nickel exposed surface)
  • (a) shows a four-layer structure 5 before press forming in which an insulating layer 2.
  • a metal base layer 3 and a mold protection layer 4 are sequentially attached to the outer peripheral surface of the shape memory / superelastic material 1 of a filament,
  • the four-layer structure 5 is work-hardened by press molding using a mold to form a product shape, and the product shape is removed from the mold and the three layers after the mold protection layer 4 is removed.
  • Structure 6 shape memory Z hyperelastic member and insulating layer 2, metal base layer 3) is shown,
  • FIG. 2 is an explanatory diagram showing a procedure for preparing the shape memory / superelastic article of FIG. 1, and the contents are as follows.
  • (S1) Shape memory A four-layer structure 5 is formed by sequentially laminating an insulating layer 2, a metal base layer 3, and a mold protection layer 4 on the outer peripheral surface of the superelastic material 1.
  • the three-layer structure 6 in which the metal base layer 3 is exposed is formed by removing the metal protective layer 4 of the product shape body by washing with an acid such as sulfuric acid or nitric acid.
  • Explosive cladding method-A processing method that covers or adheres the material (thin plate) of each layer of 2 to 4 to the shape memory / superelastic material 1 by the explosive force.
  • Extrusion method-shape memory Z Super elastic material A processing method in which the material of each layer of 1 or 2 to 4 is put into a mold, and these are extruded from the hole and brought into close contact.
  • the shape memory Z chemical diffusion between Ti of the layer 3 is more reliably prevented. That is, when the Ni—Ti of the shape memory Z superelastic material 1 and the Ti of the metal base layer 3 are directly joined, nickel atoms of the shape memory Z superelastic material 1 are contained in the titanium of the metal base layer 3. The chemical diffusion may not occur in the insulating layer 2 because the entire metal paste layer 3 may be melted into nickel and titanium alloy.
  • the insulating layer 2 also has a function of preventing a change in the characteristics of the shape memory / superelastic material by suppressing a change in the Ni amount of the shape memory / superelastic material 1 made of a Ni—Ti alloy. are doing.
  • the mold protection layer 4 is formed by heating the four-layer structure 5 in a mold (press molding) to form a product shape such as a shape memory Z superelastic member 1 ′.
  • the purpose of this is to prevent seizure in the mold, and the formation of the mold protective layer 4 makes it possible to easily remove the press-formed product shape from the mold. It is optional to remove the die protection layer 4 after press molding.
  • shape memory Z superelastic alloy shape memory / superelastic material
  • insulating layer metal base layer
  • metal base layer metal base layer
  • mold protection layer for example
  • Shape memory Z superelastic alloy shape memory superelastic material 1: Ni—Ti alloy (preferably Ni—Ti alloy with Ti content of 49.5 to 51. lat3 ⁇ 4, N i-Ti-Co alloy, Ni-Ti-Cu alloy, Ni-Ti alloy, Pe, Co, Cu, Mn, Cr, V, Zr, Pd, or any of the other noble metals 1 Alloy containing two or more kinds, preferably less than l at%)
  • Insulation layer 2 Nb
  • Metal base layer 3 Ti, Ni, Au, Pt, Pd
  • shape memory Z superelastic material 1 Cu—Zn—A1 alloy, Cu—Al—Ni alloy, Fe—Mn—Si alloy as shape memory Z superelastic material 1
  • a noble metal such as Au, ⁇ , ⁇ d may be used as the insulating layer 2.
  • a metal part 7 and a metal material 7 will be applied to the shape memory superelastic member (for example, the three-layer structure 6) after press forming. Ni is not exposed on the surface of the metal base layer after the attachment, and it is possible to provide a product suitable for taking measures against nigger allergy.
  • the thickness of each of the layers 2 to 4 is, for example, several microns to several tens of microns, and the thickness of the entire three layers is, for example, several tens to hundreds of micron.
  • a shape memory / superelastic member vine 9 is created by subjecting the plate to a shape memory process at approximately 45.
  • a metal hinge piece 10 is brazed with a brazing material 8 to the metal base layer 3 of the vine 9a having a three-layer structure by removing the mold protection layer 4.
  • the brazing material 8 penetrates between the metal pace layer 3 and the hinge piece 10 and is firmly fixed to the joining surface of each of the metal pace layer 3 and the hinge piece 10 to enable hard brazing.
  • the shape memory constituting the eyeglasses is combined with the Z superelastic member and other metal parts (the bridge 32 and the rim 26, the reinforcing arm 3 in FIG. 7). 3 and rims 26, pad wires 35 and rims 26 and nasal pad holders 34) and orthodontic wires, implants, medical catheters, stents, brassiere, etc. It is also possible to strongly join the combined portion of the elastic member and the metal.
  • Al alloy brazing ((Al, Si, Fe, Cu, Mn) , Zn), (Al, Si, Fe, Cu, n, Zn, Mg), (Al, Si, Fe, Cu, Mn, Zn, Ti, Mg), (Al, Si, Fe, Cu, Mn, Zn , Mg, Bi), (Al, Si, Fe, Cu, Mn, Zn, Mg, Cr) are preferably brazed at about 500 to 650 t), phosphorus copper braze ((Cu, P), (Cu , P, Ag) preferably at about 650: to 950 t), silver filter 0 ((Ag, Cu, Zn), (Ag, Cu, Zn, Cd), (Ni, Ag, Cu, Zn, Sn) is preferably used for brazing at about 550 * t: ⁇ 850
  • the insulating layer 2 and the metal pace layer are formed on the joining partner side in the same manner as in FIGS. 1 and 2. Then brazing them together.
  • a shape memory / superelastic member which has been subjected to a predetermined shape memory process may be prepared, and then the insulating layer 2 and the metal base layer 3 may be sequentially laminated on a brazing target portion of this member.
  • Fig. 5 shows an example in which the end surface (exposed surface of nickel) of a bridge composed of a three-layer structure is covered with a titanium sheath, and the sheath is brazed to a rim.
  • the creation procedure is as follows.
  • a linear three-layer structure in which an insulating layer 2 and a metal base layer 3 are formed on the outer peripheral surface of a shape memory Z superelastic member ⁇ ⁇ made of a Ni—Ti alloy is created by the above method.
  • a material other than nickel is used as the material of the metal pace layer 3.
  • the sheath 11 made of titanium and the rim 26 may be brazed, and then the bridge 11 may be inserted into the sheath 12 and brazed.
  • the end face 11a of the three-layer structure 6 By covering the end face 11a of the three-layer structure 6 with the sheath 12 made of, for example, titanium, the nickel on the end face 11a is prevented from directly contacting the human body. The nickel is exposed on the end face 11a due to the cutting process (2). Note that the end face 11a may be covered with a pipe. In addition, nickel exposed parts other than the bridge that are easily in contact with the human body, such as the reinforcing arm 33 and the rim 26, the pad wire 35 and the rim 26, the pad wire 35 and the nose pad holder 3 4 in FIG. Also, when connecting orthodontic wires, implants, medical catheters, stents, brassiere, etc., this exposed nickel part can be covered with a pipe-shaped or sheath-shaped part to provide effective allergy countermeasures. . Industrial applicability
  • the shape memory Z superelastic member and the metal are connected by brazing, at least the brazing metal base layer (for example, T i or N i) Shape memory Z such as a crane and the brazing strength of a metal such as a hinge piece attached to the super elastic member can be made more complete, and the attached portion can be made to look good.
  • the brazing metal base layer for example, T i or N i
  • Shape memory Z such as a crane and the brazing strength of a metal such as a hinge piece attached to the super elastic member can be made more complete, and the attached portion can be made to look good.
  • the insulating layer is formed between the shape memory / superelastic member and the metal pace layer, the reaction between the shape memory Z superelastic member and the metal pace layer can be prevented.
  • a mold protection layer is previously formed on the shape memory / superelastic material. Later shape memory The Z super elastic member can be prevented from seizing in the mold.
  • the nickel part of the shape memory superelastic alloy is covered so as not to be exposed, direct contact between nickel and the human body can be prevented, and effective allergy countermeasures can be taken.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)
  • Laminated Bodies (AREA)
  • Dental Prosthetics (AREA)
  • Wire Processing (AREA)
  • Corsets Or Brassieres (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un procédé qui permet d'obtenir un brasage parfaitement solide entre un élément à mémoire de forme/superélastique (branche, pont, coussinet de lunettes) et un métal (pièce charnière, cercle), et qui empêche la réaction entre ledit élément et une couche de base métallique plaquée à sa surface externe. On forme une structure à quatre couches en plaquant, sur un matériau à mémoire de forme/superélastique à base de Ni-Ti, une couche isolante (Nb), une couche de base constituée d'un métal de brasage (Ti, Au, Ni, Pt, Pd) et une couche de protection de filière. La structure est formée par compression, puis subit un traitement de mémoire de forme destiné à former une branche. On enlève la couche de protection de filière de façon à exposer la couche de base métallique, que l'on soude avec la pièce charnière au moyen d'un métal d'apport pour brasage. La couche isolante empêche la réaction entre le matériau à mémoire de forme/superélastique et la couche de base métallique, et la couche de protection de filière empêche le collage entre la structure à quatre couches et l'intérieur de la filière. La surface de nickel exposée de l'élément à mémoire de forme/superélastique est recouverte d'un tube ou d'un manchon en titane, qui empêche le contact direct du nickel avec le corps humain. Le produit de l'invention peut être appliqué sur un fil orthodontique, un implant, un cathéter chirurgical ou un stent, ainsi que sur les sous-vêtements féminins.
PCT/JP1999/001929 1998-04-13 1999-04-12 Produit a memoire de forme/superelastique et procede de fabrication associe WO1999052667A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/140367 1998-04-13
JP14036798A JP2002205164A (ja) 1998-04-13 1998-04-13 形状記憶／超弾性物品およびその製造方法

Publications (1)

Publication Number Publication Date
WO1999052667A1 true WO1999052667A1 (fr) 1999-10-21

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WO (1) WO1999052667A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10543061B2 (en) 2014-10-03 2020-01-28 3M Innovative Properties Company Methods for managing the scattering of incident light and articles created therefrom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009119387A1 (fr) * 2008-03-28 2009-10-01 テルモ株式会社 Fil-guide et procédé de fabrication correspondant
CN102560303B (zh) * 2010-08-24 2016-05-18 奥姆科公司 对形状记忆合金牙弓丝的形状设置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611431A (en) * 1979-07-06 1981-02-04 Nippon Gakki Seizo Kk Production of spectacle frame made of metal
JPH02274893A (ja) * 1989-04-15 1990-11-09 Wakayama Mekki:Kk 形状記憶合金のメッキ及びロウ付け構造、並びにこれらの製法
JPH0352765A (ja) * 1989-07-21 1991-03-06 Murai:Kk ろう付け方法およびめっき方法
JPH03291164A (ja) * 1990-04-05 1991-12-20 Kowa Eng Kk 超弾性合金のろう付け方法
JPH04143069A (ja) * 1990-10-05 1992-05-18 Fukushin Mekki Kogyosho:Yugen 形状記憶合金製部材の接合方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611431A (en) * 1979-07-06 1981-02-04 Nippon Gakki Seizo Kk Production of spectacle frame made of metal
JPH02274893A (ja) * 1989-04-15 1990-11-09 Wakayama Mekki:Kk 形状記憶合金のメッキ及びロウ付け構造、並びにこれらの製法
JPH0352765A (ja) * 1989-07-21 1991-03-06 Murai:Kk ろう付け方法およびめっき方法
JPH03291164A (ja) * 1990-04-05 1991-12-20 Kowa Eng Kk 超弾性合金のろう付け方法
JPH04143069A (ja) * 1990-10-05 1992-05-18 Fukushin Mekki Kogyosho:Yugen 形状記憶合金製部材の接合方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10543061B2 (en) 2014-10-03 2020-01-28 3M Innovative Properties Company Methods for managing the scattering of incident light and articles created therefrom

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Publication number Publication date
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