WO2004016831A1 - Procede de production d'un manchon - Google Patents

Procede de production d'un manchon Download PDF

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Publication number
WO2004016831A1
WO2004016831A1 PCT/JP2002/008353 JP0208353W WO2004016831A1 WO 2004016831 A1 WO2004016831 A1 WO 2004016831A1 JP 0208353 W JP0208353 W JP 0208353W WO 2004016831 A1 WO2004016831 A1 WO 2004016831A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular
matrix
sleeve
manufacturing
sleep
Prior art date
Application number
PCT/JP2002/008353
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Okamoto
Hitoshi Mikajiri
Original Assignee
Hikari Tech Co., 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 Hikari Tech Co., Ltd. filed Critical Hikari Tech Co., Ltd.
Priority to PCT/JP2002/008353 priority Critical patent/WO2004016831A1/fr
Publication of WO2004016831A1 publication Critical patent/WO2004016831A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3854—Ferrules characterised by materials
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/02—Tubes; Rings; Hollow bodies
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3877—Split sleeves

Definitions

  • the present invention relates to a method for manufacturing a sleep used for an optical fiber connector or the like.
  • the sleeve has a tubular shape as shown in Fig. 1 and has a slit at the end in most cases because of the passage of objects of various diameters inside, and has a panel elasticity. I have it.
  • the material used in conventional sleeves is mainly made of zirconium ceramic, and is mainly used to accurately connect ferrules as shown in Fig. 2. I have.
  • Zirconia sleeves are manufactured by injection molding using a mixture of zirconium ceramic powder and resin as raw materials, and baking at about 500 ° C to remove resin (degreasing). After that, it is baked at about 130 ° C and then finished with polishing and other finishing.
  • the molded product is subject to high mold shrinkage during sintering during manufacture, and the extremely high hardness of zirconia powder, which adds to the friction of the mold core.
  • the dimensional accuracy is insufficient and the degree of smoothness is also inadequate. Polishing is performed by hand by skilled workers to determine the inner diameter, but the dimensional accuracy is insufficient. Large variation in mating strength with ferrule, mating Productivity was extremely low due to the high rate of poor strength, the need for labor in the inspection process, and the need for manual polishing by skilled workers.
  • a tube whose center hole is precisely dimensioned is manufactured by pulling it out through a die, and the slit is cut and cut into a predetermined length. It is manufactured by finishing such as barrel processing and chemical polishing.
  • the pipe is easy to manufacture and the cutting process is easy, so that the price can be reduced to a fraction of that of the zirconia.
  • the accuracy of the hole diameter at the center is inadequate and inadequate, so the variation in the fitting strength with the ferrule is very large and the rejection rate is extremely high. Due to lack of elasticity, there were major problems in quality, such as a decrease in the mating strength after several detachment tests, and it was not widely used in the industry.
  • the present invention requires that post-processing such as polishing is required due to insufficient hole diameter accuracy, which is a problem common to conventional sleeves made of zirconia and phosphor bronze, and fitting with ferrules. It fundamentally solves the problem of large variation in joint strength and high defect rate.It also improves the mating strength in the detachment test due to insufficient panel elasticity seen in phosphor bronze sleeves. The challenge is to use easily processable materials to increase productivity and reduce costs significantly. Disclosure of the invention To achieve the above object, the present invention provides
  • FIG. 1 is a sectional view and a side view of a sleeve according to a conventional method.
  • FIG. 2 is a cross-sectional view showing a use state of a sleeve in a connector according to a conventional method.
  • FIG. 3 is a side view showing the basic principle of the method (1).
  • FIG. 4 shows a case where a sleeve is manufactured based on a rod-shaped body having a particularly varied thickness in the method (1).
  • (A) shows a side surface of a rod-shaped body having a different thickness. It is a figure, (b) is sectional drawing of the sleeve manufactured by the electrode using the rod-shaped body of (a).
  • FIG. 5 is a side view showing the basic principle of the method (2) and employing a plurality of tubular mother dies.
  • FIG. 6 is a cross-sectional view showing an embodiment in the case of manufacturing a tubular matrix used in the method (2).
  • FIG. 7 is a cross-sectional view showing a configuration for producing a tubular matrix having a variable thickness used in the method (2), wherein (a) shows an inner thin tube 110 and (b) ) Shows a state in which a tubular matrix 10 having a changed thickness is formed by press-fitting a thick outer tube 110 into the thin tubular matrix.
  • FIG. 8 is a plan view showing the configuration of the rotary electric device employed in the first embodiment.
  • FIG. 9 is longitudinal sectional views showing an embodiment of an electrode tubular matrix for forming a slit employed in the manufacturing method of the second embodiment.
  • FIG. 4 is a cross-sectional view in a cutting direction.
  • FIG. 12 is a side view showing the basic principle in the case where a plurality of tubular mother dies of FIGS. 10 and 11 are used and then manufactured by an electrode.
  • FIG. 13 is a perspective view of a sleeve with a slit in a case where it is manufactured based on an electrode by using the tubular matrix of FIGS. 10 and 11.
  • FIGS. 14A and 14B show the shape of the mesh sleeve based on the manufacturing method of the third embodiment.
  • FIG. 14A shows a cross-sectional view in the lateral direction
  • FIG. 14B shows a side view.
  • Rod-shaped object or matrix with rod-shaped object, and tubular matrix
  • the sleeve 1 is manufactured by an electrode method using a rod-shaped object 10 such as metal or plastic as a core. .
  • electrolytic solution 11, positive electrode 12, holding jig 13, air stirring nozzle 14, panel 15, negative electrode 16, and rod-shaped object 10 are used.
  • a rod-shaped object 10 such as stainless steel stretched by a spring 15
  • the rod is fixed around a holding jig 13 with a negative electrode 16, and an air stirring nozzle 14 is set.
  • a small amount of air is blown out of the furnace, and a DC current is applied while stirring to perform electricity.
  • Electrolyte 11 differs depending on the material of the target electrode metal, but for example, nickel or its alloy, iron or its alloy, copper or its alloy, cobalt or its alloy, tungsten alloy, fine particles
  • Electrolytic metals such as dispersing metals can be used, and nickel sulfate, nickel chloride, nickel sulfate, ferrous sulfamate, ferrous borofluoride, copper pyrophosphate, copper sulfate, copper borofluoride, Copper fluoride, copper titanium fluoride, copper alkanol sulfonate, cobalt sulfate, tandastate
  • An aqueous solution mainly containing an aqueous solution of sodium phosphate or the like, or a fine powder such as silicon carbide, tungsten carbide, boron carbide, zirconium oxide, silicon nitride, alumina, diamond, or a carton.
  • baths containing nickel sulfamate as the main component are particularly suitable in terms of ease of power supply, variety of physical properties such as strength, chemical stability, and ease of welding. It is desirable to increase the hardness up to about 600 in terms of Vickers hardness by adding an agent, and it is also possible to further improve the elasticity by using a material in which short fibers or whiskers are dispersed. .
  • Electrolyte 11 is filtered at a high speed with a filtration system of about 0.1 to 5 m, heated, and temperature-controlled to an appropriate temperature range with a fluctuation range of about ⁇ 3 ° C. the organic impurities were removed by a process, also the anode of the corrugated sheet iron was Nikkerume month, and then the force one carbon to the cathode 0. 2 a / dm 2 about energized at a low current density of copper of which the metal impurities It is desirable to keep the electrolyte solution 11 healthy by removing it.
  • the positive electrode 12 differs depending on the intended electrode metal, and is selected from nickel, iron, copper, cobalt, etc., and a plate-shaped, spherical, or pellet-shaped material is used as appropriate, and a spherical material is used. In such a case, it is recommended to put it in a titanium basket and cover it with a polyester cloth bag.
  • Agitation such as air, propeller, ultrasonic wave, ultra-vibration, or liquid flow can be used for the agitation.However, by increasing the speed of revolving and rotating the holding jig 13 and adding an anti-pitting agent It is also possible to omit the stirring.
  • the rod-shaped object 10 is made of iron or its alloy, aluminum or its alloy, copper or Metal rods such as alloys, tungsten alloys and the like, thin metal plating on this metal rod, and plastic rods such as nylon and polyester are appropriately selected and used.
  • metal surfaces such as nickel and silver must be applied to the surface to provide conductivity for rods. Is essential.
  • the rod-shaped object 10 is required to have high precision in thickness, roundness, smoothness, linearity, and the like, and may be manufactured by being combined with extrusion using a die, centerless processing, cutting, and the like.
  • the power is applied by the above-mentioned device, and the power is applied by applying a direct current at a current density of about 4 to 8 A / dnf for about 5 hours and a thickness of 0.2 to 0.4. mm, and manufactured in a length of about 400 to 800 mm, taken out of the cell, washed well with water, and dried.
  • rod-shaped object 10 it is determined whether it is extruded or extruded or dissolved with a chemical.However, in general, it is difficult to dissolve in a chemical and has high tensile strength. However, for those that are easily dissolved in chemicals, dissolution may be used.
  • the rod-shaped object 10 may be subjected to a mold release treatment, and after being heated, the rod-shaped object 10 may be pulled out.
  • the rod-shaped object 10 made of an electrolessly plated plastic it may be pulled out by the same method. Of these, a method of extracting or extruding using a stainless steel rod-shaped object 10 which is an iron alloy is particularly desirable.
  • the above-mentioned electric power is carried out using a rod-shaped object 10 having a variable thickness (diameter) as shown in FIG. After removal, the sleeves 1 having different thicknesses can be processed as shown in FIG. 4 (b).
  • a conductive core wire is passed through the hole 101 in the tubular matrix 10 having a hole 101 at the center, and then the electrode is heated. It has a fundamental characteristic in that
  • the basic principle of the electrode, the material used, the operation method, and the like are the same as those in the method (1).
  • the current density in the electrolyte 11 is (2) In the case of, it tends to be set slightly larger.
  • a rod-shaped object 10 of any thickness (diameter) can be used while using the same core wire. It is also possible to manufacture the sleeve 1 whose thickness is changed by both the thickness of the tubular matrix 10 and the thickness of the rod-shaped object 10.
  • a plurality of sleeves 1 can be automatically produced corresponding to the plurality of tubular masters 10, thereby improving work efficiency. be able to.
  • the tubular matrix 10 is often made of a metal material.
  • the tubular matrix 10 and the core wire 20 need to be in contact with each other and to be conductive.
  • an insulator such as plastic is used as the tubular mold 10
  • metal plating it is necessary to apply metal plating to the surface thereof, and the core wire 20 and the metal plating become mutually conductive. Being connected is essential.
  • the rod-shaped object 10 is used as a core, and electric power is applied to the periphery of the rod-shaped object 10.
  • a tubular master 10 made of a metal such as nickel can be formed on the substrate.
  • the tubular matrix 10 formed in this manner is usually used in a state where a plurality of tubular molds are sequentially passed through the core wire 20.
  • the individual tubular masters 10 are connected to each other and, as shown in Fig. 6, holes 1 are inserted into both ends so that they can be easily inserted when a new core wire 20 is inserted. In many cases, machining using a pin that enlarges 0 1 is performed.
  • the tubular matrix 10 is manufactured by using an electrode, it is indispensable to make the tubular matrix 10 and the sleep 1 newly formed by the electrode separable.
  • tubular matrix 10 and the sleeve 1 are selected for the tubular matrix 10 and the sleeve 1 to be newly formed by electric current (for example, phosphor bronze is used as the material of the tubular matrix 10 and a new metal is selected). Nickel is used as the sleep 1 formed by the electrode at the time.)
  • the force or the tubular matrix 10 formed by the electrode is once pulled up from the electrolyte 11, By performing surface processing, the tubular master 10 may be separated from the sleeve 1.
  • a rod-shaped object 10 having a variable thickness is used, and an electrode is manufactured by the method (1). It can be realized by performing.
  • the method of manufacturing the tubular matrix 10 having such a change in thickness is not limited to the method using the above-described electrodes, but a mechanical manufacturing method is also possible.
  • two types of metal pipes are prepared, and one of the thin metal pipes is first processed by a cylindrical grinder or the like to a predetermined outer diameter, and The other large metal tube is press-fitted into the tube, and the entire outer surface including the outer large metal tube is subjected to the surface processing again as described above, whereby a tubular mold 10 having a predetermined shape can be obtained.
  • Such a method of mechanically manufacturing the tubular master 10 is capable of efficiently manufacturing the tubular master 10 with a relatively simple mechanical device without using an electric device. Can be.
  • a model using the rod-shaped object 10 of (1) and a tubular matrix 10 (2) of (2) This is a general term for "type."
  • the holding jig rotation motor 17, belt 18, integrating ammeter 19, pulley 21, jig, fixing structure 22 In a state where the electrolytic solution 11 is put in an electrolytic bath, heated, filtered, and stirred, the positive electrode and all of the individual holding jigs 13 are mixed together with a metal.
  • the electrode 16 is connected to the integrating ammeter 19, a direct current is passed, and the rotation of the holding jig rotation drive motor 17 is rotated by the belt 18 via the pulley 21.
  • the power is transmitted to the holding jig 13 and the holding jig 13 is rotated and turned on, and when a certain integrated current value is reached, the energization and the power based on this are terminated.
  • the use of the integrating ammeter 19 is not an indispensable requirement, but when it is used, a more reliable and uniform sleep 1 can be formed.
  • the electric wall thickness of the sleeve 1 can be made more uniform, and bending of the electric component can be prevented, so that the quality can be improved.
  • the rotation speed in the first embodiment is generally appropriate at about 100 to 100 rpm, but is not particularly limited to this number. For example, when a high-speed rotation of 100 rpm or more is adopted, Can omit the stirring for the electrolyte 11.
  • Fig. 8 shows the state of rotation, but by rotating the matrix 10 further while revolving, it turns around the cell and eliminates the uneven distribution of metal ions in the electrolyte 11 However, the wall thickness due to the electric power can be made more uniform.
  • Example 2 shows a manufacturing method based on the methods (1) and (2) in the case where the sleeve 1 includes the slit 2.
  • a slit 2 is often provided at an end of a sleep 1 in order to smoothly insert an object having various diameters.
  • the electric insulating member 5 is provided at a predetermined position of the matrix 10 of a rod-shaped object in the method of (1) and (2), and the tubular mold 10 in the method of (2). ⁇ is performed, and a slit 2 is formed by not attaching metal ions to the position.
  • each of the masters 10 provided with the electrically insulating member 5 at a predetermined position is supplied with electricity, and the master 10 is removed. Sleep 1 in which event 2 exists.
  • FIG. 9 is a matrix 10 for manufacturing a slip between SC types and MU types in Example 2, (a) is a side sectional view, (b) is an A-A sectional view, and (c) ) Shows B-B cross-sectional views, respectively.
  • the conductive tube 110 made of SUS, brass, etc., with the outside diameter of the pore 101 set to the specified size, is made of plastic or other electrical material. Insulating masking member 4 is fixed, and by applying power using this master 10, sleeve 1 in which slit 2 is located in one place is subjected to a post-processing step. It can be manufactured without.
  • Fig. 10 shows a master block 10 for manufacturing a sleep that contains a plurality of slits 2 for adapters for connecting ferrules 3 of different thicknesses, for example, SC type and MU type.
  • Is a side sectional view (b) is an A-A sectional view, (c) is a BB sectional view, (d) is a C-C sectional view, and (e) is a D-D sectional view.
  • An electrically insulating masking member 4 made of plastic or the like is attached to the surface of a tube 110 that has a sudden change in conductive thickness such as SUS or brass with the outside diameter of the pores 101 set to a predetermined size. Fixed.
  • the masking member 4 of the electrical insulator can be made of a material such as plastic, rubber, or ceramic, and can be covered with a member such as a plastic injection molded product or a vacuum molded product, or can be screen-printed or tambo-printed.
  • a member such as a plastic injection molded product or a vacuum molded product, or can be screen-printed or tambo-printed.
  • Such as various printing methods, masking coating method, A method of forming a film by using a photoresist method or a method of bonding an electrically insulating member 5 can be used alone or in combination.A method using an injection molded product of plastic or rubber can be used. The printing method is more suitable.
  • '' Fig. 11 shows a master mold 10 for the production of a sleeve with several slits 2 for adapters for connecting ferrules 3 of different thickness as in Fig. 10 , (A), (b), (c), (d), and (e) are shown in the same manner as in FIG.
  • a notch 6 is provided in the metal tube 110 with an accurate width and position from the left and right by wire cutting, etc., and a plastic or the like is inserted into the notch 6.
  • the electrically insulating member 5 is inserted and fixed at a predetermined size, and the masking member 4 made of an electrically insulating silicone rubber or the like is covered with a predetermined size so as to be covered.
  • the electrically insulating member 5 in FIG. 11 can be made of the same material as that of FIG. 10; for example, polyethylene, polyvinyl chloride, polypropylene, polyester, SBR rubber, silicone rubber, etc. Plastics, rubber, etc. have particular suitability.
  • the sleeve 1 having the slits 2 at a plurality of locations shown in FIG. 13 can be manufactured with almost no post-processing.
  • FIG. 12 shows an embodiment in which a core wire 20 is sequentially passed through a plurality of tubular mother dies 10 based on the above method (2).
  • the mold 10 By using the mold 10, it is possible to efficiently manufacture the sleeve 1 with the slit 2.
  • the jig for performing the electric power is rotated to manufacture the sleeve 1 having a uniform thickness. That is, of course, possible.
  • the problem of the generation of pallets as in the conventional sleeve 1 with the slit 2 does not occur, and the sleeve 1 having excellent accuracy in the position and the shape of the slit 2 is provided. It can be produced efficiently.
  • Example 3 shows a manufacturing method based on the methods (1) and (2) when the sleeve 1 has a mesh shape.
  • the sleeve 1 usually adopts a tubular shape having a uniform wall thickness as shown in FIG.
  • the shape is not limited to the above-mentioned shape.
  • a tubular sleeve having a mesh as shown in FIG. 14 is formed. 1 can also be adopted.
  • the tubular sleeve 1 having such a mesh is formed by the rod-shaped body 10 by the method (1) or the tubular matrix by the method (2). It can be manufactured by providing the electrically insulating member 5 at the position where the blank portion of the mesh is formed in 10.
  • an electrically insulating member 5 As a material of such an electrically insulating member 5, it is possible to adopt a material such as plastic, rubber, ceramic, or the like, as in the second embodiment. In contrast, various printing methods, masking coating methods, photo-resist methods, etc. are used to form a film at the position where a mesh-like blank portion is formed (the position corresponding to the negative of the mesh). A method of bonding the electrically insulating member 5 to the position can be used alone or in combination.
  • a method of forming a film by the masking member 4 of an electrical insulator, particularly by a photo resist method is advantageous in forming an accurate mesh.
  • the sleeve 1 having such a mesh shape can obtain elasticity (paneling) due to the easy deformation of the mesh-like metal wire, and the elasticity increases the fitting strength with the ferrule 3.
  • stable bonding can be realized.
  • the productivity of the sleeve can be remarkably improved, and the invention can be applied to various types of sleeves.
  • the method of (1) when the tubular model is manufactured by an electron gun, it is possible to significantly improve the processing accuracy, particularly on the inner surface.
  • the present invention has multifaceted value, and the value is enormous.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

L'invention porte sur un procédé de production d'un manchon de haute précision et de dureté élevée, ce procédé consistant à utiliser des matrices se présentant sous forme de barres ou de matrices tubulaires comportant un vide à l'intérieur de façon à accueillir un câble centrale de conductivité électrique, effectuer un électroformage autour de ces matrices et retirer les matrices.
PCT/JP2002/008353 2002-08-19 2002-08-19 Procede de production d'un manchon WO2004016831A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/008353 WO2004016831A1 (fr) 2002-08-19 2002-08-19 Procede de production d'un manchon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/008353 WO2004016831A1 (fr) 2002-08-19 2002-08-19 Procede de production d'un manchon

Publications (1)

Publication Number Publication Date
WO2004016831A1 true WO2004016831A1 (fr) 2004-02-26

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831398B2 (ja) * 1977-07-13 1983-07-05 三菱電機株式会社 コルゲ−ト導波管の製造方法
JPS5836063B2 (ja) * 1981-07-20 1983-08-06 日本電信電話株式会社 ノズル成形用金型の製造方法
EP0223425A1 (fr) * 1985-10-24 1987-05-27 Xerox Corporation Procédé d'électroformage et produit obtenu
JP2001356242A (ja) * 2000-06-14 2001-12-26 Ykk Corp 異径フェルール変換用アダプタ及びその製造方法
EP1179613A1 (fr) * 2000-01-14 2002-02-13 Hikari Tech Co. Ltd. Procede de production pour ferrules
JP2002116352A (ja) * 2000-10-11 2002-04-19 Oudenshiya:Kk 母線方向に間隙を有する高精度スリーブの製造方法
JP3323132B2 (ja) * 1998-06-25 2002-09-09 株式会社 旺電舎 ステントおよびその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831398B2 (ja) * 1977-07-13 1983-07-05 三菱電機株式会社 コルゲ−ト導波管の製造方法
JPS5836063B2 (ja) * 1981-07-20 1983-08-06 日本電信電話株式会社 ノズル成形用金型の製造方法
EP0223425A1 (fr) * 1985-10-24 1987-05-27 Xerox Corporation Procédé d'électroformage et produit obtenu
JP3323132B2 (ja) * 1998-06-25 2002-09-09 株式会社 旺電舎 ステントおよびその製造方法
EP1179613A1 (fr) * 2000-01-14 2002-02-13 Hikari Tech Co. Ltd. Procede de production pour ferrules
JP2001356242A (ja) * 2000-06-14 2001-12-26 Ykk Corp 異径フェルール変換用アダプタ及びその製造方法
JP2002116352A (ja) * 2000-10-11 2002-04-19 Oudenshiya:Kk 母線方向に間隙を有する高精度スリーブの製造方法

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