WO2020039658A1 - Procédé de fabrication de tube sans soudure superélastique - Google Patents

Procédé de fabrication de tube sans soudure superélastique Download PDF

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Publication number
WO2020039658A1
WO2020039658A1 PCT/JP2019/017898 JP2019017898W WO2020039658A1 WO 2020039658 A1 WO2020039658 A1 WO 2020039658A1 JP 2019017898 W JP2019017898 W JP 2019017898W WO 2020039658 A1 WO2020039658 A1 WO 2020039658A1
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WO
WIPO (PCT)
Prior art keywords
tube
superelastic
clad
seamless
diameter
Prior art date
Application number
PCT/JP2019/017898
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English (en)
Japanese (ja)
Inventor
清則 武澤
清 山内
将弘 山本
誠一 高村
Original Assignee
株式会社ジャロック
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
Priority claimed from JP2019080668A external-priority patent/JP6842125B2/ja
Application filed by 株式会社ジャロック filed Critical 株式会社ジャロック
Publication of WO2020039658A1 publication Critical patent/WO2020039658A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C45/00—Separating mandrels from work or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel

Definitions

  • the present invention relates to a method for manufacturing a seamless tube made of a superelastic alloy material such as a Ti—Ni alloy.
  • shape memory alloys such as Ti—Ni alloys exhibit remarkable shape memory accompanying martensitic transformation and reverse transformation to a parent phase. It is also known that superelasticity is exhibited with the stress-induced martensitic transformation caused by strong deformation after the reverse transformation. The onset of these properties begins at the martensitic transformation onset (As) temperature and is completed at the reverse transformation end (Af) temperature. Superelasticity exhibited by shape memory alloys is a unique property not found in other metals, and its application and practical application are being promoted not only in medicine but also in a wide range of fields such as home appliances, automobiles, clothing, and construction.
  • a metal seamless tube is manufactured by performing a drilling process using a gun drill on a metal bar.
  • a small-diameter tube having a large aspect ratio is manufactured by inserting a mandrel into a drilled material and performing rolling or elongation (drawing).
  • the tube is often pulled out of the mandrel for each processing pass and heat treated. For this reason, processing by such a discontinuous process is inefficient and costly, and the diameter and length of a tube that can be manufactured are limited.
  • a means for manufacturing a metal tube having a uniform cross-sectional shape after the above-described drilled tube material is used as a clad material for insertion of a metal core material, a wire is drawn to form a clad tube, and the clad tube is formed. It is also known to remove a core material from a tube to form a tube. However, in such a manufacturing process, removal of the core material in the final process remains a serious problem. The tube material and the core material of the drawn clad tube are tightly adhered, and the smaller the clad tube diameter and the longer the length, the greater the frictional resistance when removing the core material becomes. It becomes difficult to pull out and remove the core material.
  • a method of removing the core material a method of selectively dissolving only the core material at a temperature lower than the melting point of the tube material or a method of expanding and reducing the diameter by performing heat treatment at a temperature higher than the recrystallization temperature of the core material.
  • a method of facilitating the extraction of a material has been proposed.
  • Patent Document 1 describes a technique for processing a metal seamless tube into a small diameter using a shape memory alloy such as a Ti—Ni alloy as a core material. More specifically, the tube material is formed by using a core material having the same extensibility as the tube material to form the clad material, and the clad material is subjected to elongation processing to form a clad tube. Thereafter, the core material of the clad tube is stretched to reduce the diameter, and the reduced core material is pulled out to produce a metal seamless tube. Furthermore, it is described that by subjecting the clad tube to a heat treatment at about 700 ° C., the core material can be easily stretched. However, in this case, the obtained tube is limited to the one after the heat treatment.
  • a shape memory alloy such as a Ti—Ni alloy
  • a high-temperature heat treatment for the clad material is unavoidable in order to stretch the core material after the wire drawing process, and heat effects such as a decrease in rigidity of not only the core material but also the tube material are caused. Will occur.
  • the tube is used as a material for a medical stent, and has a straight size of about 1 mm with an outer diameter of about 2 mm and a thickness of about 0.2 mm.
  • Stents using a Ti—Ni alloy are roughly classified into a cage net type using a wire and a laser processing type using a tube, but most of the latter laser processing types except for a part of peripheral cerebral cerebral arteries and the like. Type is used.
  • the tube is required to have straightness and a suitable length (about 1 m) for facilitating continuous processing. There is no situation.
  • an object of the present invention is to provide a manufacturing method capable of manufacturing a super-elastic seamless tube having a reduced diameter without reducing rigidity.
  • the method for manufacturing a superelastic seamless tube according to the present invention is characterized in that a cladding material in which a core material made of a metal material is inserted inside a cylindrical tube material made of a superelastic alloy material is axially stretched to form a distraction.
  • removing step there is provided a straightening step of heating and straightening the superelastic seamless tube.
  • a clad tube is formed by drawing the clad material.
  • the superelastic alloy material used for the tube material is a Ti—Ni alloy material
  • the core material has a higher elongation in a tensile test (based on JIS Z2241) than the Ti—Ni alloy material used for the tube material. Made of large metal material.
  • B Ni: 48.5 to 52.5 at%.
  • Fe, Co, Mg, Cr, Va, Zr, Nb, Mo, Hf, Ta, and Tn are contained in a total amount of 0.1 to 2 at%, and the remainder is Ti and unavoidable impurities.
  • C Ni containing 48.5 to 52.5 at%, and further containing at least one of Cu, Ag, and Au in a total amount of 0.1 to 20 at%.
  • a superelastic seamless tube made of any of the following superelastic alloy materials (a) to (c).
  • B Ni: 48.5 to 52.5 at%.
  • one or more of Fe, Co, Mg, Cr, Va, Zr, Nb, Mo, Hf, Ta, and Tn contains 0.1 to 2 at% in total, and the balance is Ti and unavoidable impurities.
  • the present invention by providing the above configuration, forging a clad tube obtained by elongating a clad material in which a core material is inserted inside the tube material and forging a gap between the tube material and the core material.
  • the super-elastic seamless tube having increased rigidity can be manufactured by performing diameter reduction processing to form and reducing the diameter of the deformed core material.
  • the method for manufacturing a superelastic seamless tube according to the present invention is characterized in that a cladding material in which a core material made of a metal material is inserted inside a cylindrical tube material made of a superelastic alloy material is axially stretched to form a distraction.
  • the tube material is formed by cutting a cylindrical body made of a superelastic alloy material along a central axis by using a drilling tool such as a gun drill to form a cylindrical body, and rolling the obtained cylindrical body by a known roll rolling process (eg, cold rolling). To a predetermined outer diameter and wall thickness by three-roll rolling).
  • a material having an Af temperature at which superelasticity is exhibited at a low temperature is preferably room temperature or less.
  • a Ti—Ni-based alloy material is preferable, and when the cold work rate is 60% or more, Ni having a component composition of 50 to 51 at% with excellent workability is preferable.
  • the target materials include those having the following compositions. (A) Ni: 48.5 to 52.5 at%, the balance being a Ti—Ni alloy material having a component composition of Ti and unavoidable impurities. (B) Ni: 48.5 to 52.5 at%.
  • Fe, Co, Mg, Cr, Va, Zr, Nb, Mo, Hf, Ta, and Tn are contained in a total amount of 0.1 to 2 at%, and the remainder is Ti and unavoidable impurities.
  • C Ni containing 48.5 to 52.5 at%, and further containing 0.1 to 20 at% of at least one of Cu, Ag, and Au.
  • Ti-Ni alloy material having a component composition consisting of Ti and inevitable impurities
  • alloy materials Other than Ti—Ni-based alloy materials, known alloy materials exhibiting similar superelastic properties can be used. Such alloy materials include Cu-Al-Ni alloy materials, Cu-Al-Mn alloy materials, and Fe-Mn-Si alloy materials.
  • the core material is obtained by forming a metal material into a cylindrical body having the same outer diameter as the inner diameter of the tube material by cutting.
  • a material that does not have a temperature dependence of the shape is preferable.
  • a steel material such as low carbon steel or manganese steel, or a metal material having excellent ductility such as a Cu alloy material such as brass Is mentioned.
  • the metal material has a larger elongation in a tensile test (based on JIS Z2241) than the superelastic alloy material used for the tube material.
  • a Ti—Ni-based alloy material similar to the tube material is used, an alloy material in which plastic strain (working strain) easily occurs, that is, a composition in which the alloy transformation temperature is higher than that of the tube material is preferable.
  • FIG. 1 is a sectional view orthogonal to the axial direction of the clad material (FIG. 1A) and a sectional view along the axial direction (FIG. 1B).
  • the clad material is configured to cover the outer peripheral surface of the cylindrical core material 2 with the cylindrical tube material 1.
  • a known die drawing / wire drawing process can be used, and it is preferable to repeatedly execute the process as necessary until a predetermined outer diameter is formed.
  • a clad tube having a reduced diameter is obtained.
  • FIG. 2 is an external view of the formed clad tube.
  • the tube portion 1 is in close contact with the periphery of the core portion 2. When the tube portion 1 is stretched and stretched, the tube portion is further stretched and the core portion is depressed at the end.
  • FIG. 3 is an explanatory view related to the diameter reduction processing, and is an explanatory view (FIG. 3 (a)) viewed from a direction orthogonal to the axial direction of the clad tube and an explanatory view (FIG. 3 (b)) viewed from the axial direction. is there.
  • a pair of dies are simultaneously beaten over the entire circumference of the clad tube while rotating around the clad tube to reduce the diameter.
  • the pair of dies has a substantially semi-circular hitting surface, and the processing diameter of the circular processing surface formed at the time of hitting is set substantially equal to the outer diameter of the finished shape of the super elastic seamless tube. I have. For this reason, the tube portion and the core portion of the clad tube are deformed in a direction in which the tube portion slightly contracts toward the central axis. However, the tube portion has superelasticity, so that it returns to its original shape.
  • the core portion extends in the axial direction because it undergoes plastic deformation in the reduced diameter state, but the tube portion expands from the reduced diameter state and returns to its original shape, so there is a gap between the core and the core portion. Will occur.
  • the effect of such diameter reduction is one of the factors that facilitate the core material being pulled out.
  • the diameter reduction processing is performed by simultaneously striking the entire circumference of the clad tube, but is not limited to such a processing method as long as the core part can be reduced in diameter. Other processing methods can be used. For example, a plurality of hit points may be set around the clad tube, and the diameter may be reduced by sequentially hitting at high speed.
  • FIG. 4 is an explanatory view of a clad tube subjected to diameter reduction processing.
  • the clad tube is in a state where the core portion 2 is reduced in diameter by the diameter reduction processing and projects so as to protrude from both ends of the tube portion 1. Since such diameter reduction processing can be performed at room temperature, it becomes possible to perform processing without thermally affecting the tube portion of the clad tube.
  • FIG. 5 is an explanatory diagram relating to a core portion removing step. Since the core portion 2 is exposed at both ends of the clad tube subjected to the diameter reduction process (FIG. 5A), the exposed portion can be grasped and the core portion 2 can be easily pulled out (FIG. 5A). FIG. 5 (b)). In this case, since the diameter of the core portion 2 is reduced, a slight gap is formed between the core portion 2 and the tube portion 1, and the core portion 2 can be pulled out at a time without remaining. Then, a superelastic seamless tube having a predetermined outer diameter and a predetermined thickness can be obtained (FIG. 5C).
  • the obtained superelastic seamless tube may be subjected to a straightening treatment as required.
  • a straightening treatment for example, tension annealing in which a tensile force is applied along the axial direction while being heated to 300 ° C. to 500 ° C. can be used.
  • FIG. 6 is a cross-sectional view orthogonal to the axial direction of the superelastic seamless tube (FIG. 6A) and a cross-sectional view along the axial direction (FIG. 6B).
  • FIG. 7 is a graph showing the yield stress hysteresis characteristic of Example 13 described later.
  • FIG. 7 shows the respective transitions when the elongation strain is 4% and 6%.
  • the graph shows a flat region where the stress hardly changes with respect to the change in elongation strain when yielding in the tensile test, and the stress in this region is the yield stress ⁇ y.
  • the recovery stress ⁇ r there is a flat region where the stress hardly changes with respect to the change in elongation strain when the tensile force is released after yielding, and the stress in this region is the recovery stress ⁇ r.
  • the recovery stress ⁇ r large.
  • the recovery stress upon release may be set to 200 MPa or more.
  • ⁇ About cladding material> Regarding the tube material, a round bar made of a Ti—Ni alloy was prepared, and firstly, a wire electric discharge machine (manufactured by Mitsubishi Electric Corporation) was cut out along the central axis to an outer diameter of 15 mm and an inner diameter of 11 mm to a length of 200 mm. . Next, the processed cylindrical material was roll-rolled by a cold three-roll rolling mill to obtain a tube material (1 m) having an outer diameter of 8 mm and a wall thickness of 0.5 mm.
  • the core material As for the core material, a core material having an outer diameter of 7 mm and a length of 1 mm was prepared, and the core material was inserted inside the tube material to obtain a clad material.
  • ⁇ About distraction processing> With respect to the obtained clad material, a process of performing a die drawing process using a wire drawing machine and then performing an annealing process was repeated, and the process was performed at a final cold working rate of 60% or more.
  • the obtained clad tube was formed into a tube shape having a tube portion having an outer diameter of 2 mm and having a uniform thickness and a shape close to a finished shape.
  • ⁇ About diameter reduction> A pair of dies as shown in FIG. 3 were attached to a swaging machine (manufactured by Jaroc Co., Ltd.), and the diameter of the clad tube was reduced by hitting the entire circumference of the clad tube with a processing diameter of 2 mm. As a result of the diameter reduction processing, the core portion was reduced in diameter and exposed so as to protrude from both ends of the clad tube, and a gap was formed between the tube portion and the core portion. The exposed core portion was grasped and pulled out of the clad tube to obtain a super-elastic seamless tube having an outer diameter of 2.0 mm and a uniform thickness of 1 m in length.
  • the obtained superelastic seamless tube was straightened by tension annealing while being heated at 300 ° C. to 500 ° C. for 5 minutes to form a long superelastic seamless tube having a small bending.
  • ⁇ Comparative Example> As comparative examples, purchased market materials and conventional construction materials were used. The conventional construction material was subjected to the following processing in which cold working distortion could be introduced. A tube material having an outer diameter of 7 mm was formed by the above-described roll rolling using Ti-51Ni as a Ti-Ni alloy, and then a clad material was obtained by performing clad incorporation using a straight carbide mandrel as a core material. The clad material is formed into a tube having an outer diameter of 2.8 mm and a wall thickness of 0.23 mm by repeating core removal and annealing (700 ° C.) at a surface reduction rate of about 10%. After annealing at 700 ° C., no annealing is performed. Was formed into an outer diameter of 2 mm and a wall thickness of 0.22 mm (cold working rate of 30%) by straightening.
  • Comparative Examples 1 to 4 clad tubes were produced in which only elongation was performed and diameter reduction was not performed. In any of the comparative examples, the core material could not be pulled out, and a superelastic seamless tube could not be produced. In Comparative Example 3, heat treatment at 400 ° C. was performed after elongation, but the core material could not be pulled out. Therefore, as described in Patent Literature 1, in order to extend the core material, it is considered that a contrivance such as performing a considerably high-temperature heat treatment on the clad tube is required. In Comparative Examples 5 and 6, the Ti-51Ni tube had a cold working rate of 30%, and the straightening treatment at 350 ° C. in Comparative Example 5 did not provide sufficient straightness. In the straightening process, straightness can be obtained, but the rigidity does not reach 600 MPa. Comparative Example 7 was a straight tube purchased on the market, and sufficient rigidity was not obtained.
  • Example 1 diameter reduction was performed after elongation, and in each case, the core material could be easily pulled out, and good core material removability was confirmed.
  • the finished shape (outer diameter, inner diameter and cold working rate) can be set with high precision by distraction processing. In diameter reduction processing, cracking or chipping of the tube part does not occur. No change in shape was observed in appearance.
  • Example 2 to 7 the core material was pulled out after the elongation and the diameter reduction, and a superelastic seamless tube was produced.
  • the produced superelastic seamless tube was straightened while being heated to 300 to 500 ° C. Was done.
  • the yield stress at 4% elongation strain was measured for the superelastic seamless tube after the straightening treatment. Each of them showed a yield stress of 600 MPa or more, and it was confirmed that a highly rigid superelastic seamless tube was obtained.
  • ⁇ About cladding material> By processing in the same manner as in Processing Example 1, a tube material (1 m) having an outer diameter of 8 mm and a wall thickness of 0.5 mm was obtained. The same core material as in Working Example 1 was prepared, and the clad material was obtained by inserting the core material inside the tube material.
  • the obtained clad material is processed so as to have a final cold working rate of 60% or more in the same process as in Working Example 1, and the tube portion has an outer diameter of 2 mm and is close to a finished shape elongated to a uniform thickness.
  • a shaped clad tube was obtained.
  • Processing was performed in the same manner as in Processing Example 1 to obtain a super-elastic seamless tube having an outer diameter of 2.0 mm and a length of 1 m and a uniform thickness.
  • the obtained superelastic seamless tube was straightened by tension annealing while being heated at 300 ° C. to 500 ° C. for 5 minutes to form a long superelastic seamless tube having a small bending.
  • a clad material using a superelastic material as a tube material is uniformly stretched by elongation to produce a clad tube, and the produced clad tube is easily pulled out and removed by a diameter reducing process. It is possible to stably manufacture a super-elastic seamless tube having a high rigidity and a small diameter.
  • the present invention can be applied to the manufacture of metal tubes of a wide range of sizes, and is particularly useful for the manufacture of thin and thin metal tubes.
  • a metal tube having an inner diameter of 0.1 mm to 5 mm and a wall thickness of 0.01 mm to 1 mm can be used.
  • the core part is made of a metal material that is more easily plastically deformed than the tube part, and the shape of the tube is set by distraction processing, and the core material is reduced in diameter by diameter reduction processing It can be easily pulled out and removed.
  • the length of the tube can be set arbitrarily, and it is possible to cope with a tube having a size of several meters and a size of 10 m or more, depending on the upper limit of the device for extending the core material.
  • the superelastic seamless tube according to the present invention can be used in a living environment temperature range (0 ° C. to 40 ° C.), and is suitable as a material for a stent for catheter treatment in the medical field.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)

Abstract

La présente invention a pour objet de réaliser un procédé de fabrication permettant la fabrication d'un tube sans soudure superélastique ayant un petit diamètre sans diminuer la rigidité. Ce procédé de fabrication de tube sans soudure superélastique est destiné à obtenir un tube sans soudure superélastique par : la formation d'un tube de gainage ayant un diamètre externe prédéterminé en étirant, dans la direction axiale, un matériau de gainage obtenu par insertion d'un élément d'âme (2), constitué d'un matériau métallique, dans un élément de tube cylindrique (1), constitué d'un matériau à base d'alliage superélastique ; le forgeage du tube de gainage pour déformer et réduire le diamètre de l'élément d'âme (2) de telle sorte qu'un espace est formé entre l'élément de tube (1) et l'élément d'âme (2) ; et tirer l'élément d'âme (2) ayant le diamètre réduit hors du tube de gainage.
PCT/JP2019/017898 2018-08-22 2019-04-26 Procédé de fabrication de tube sans soudure superélastique WO2020039658A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2018155168 2018-08-22
JP2018-155168 2018-08-22
JP2019080668A JP6842125B2 (ja) 2018-08-22 2019-04-22 超弾性シームレスチューブの製造方法
JP2019-080668 2019-04-22

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WO2020039658A1 true WO2020039658A1 (fr) 2020-02-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113166854A (zh) * 2020-06-08 2021-07-23 南京江东工贸有限公司 一种金属材料及其制备方法与应用
JP7508630B1 (ja) 2023-03-27 2024-07-01 株式会社古河テクノマテリアル 管材および管材の製造方法、ならびにステント、ガイドワイヤおよびプレッシャーガイドワイヤ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502472A (ja) * 2001-09-20 2005-01-27 メンリー コーポレイション 金属管の製造方法
JP2007054867A (ja) * 2005-08-25 2007-03-08 Jaroc:Kk 温間加工用スウェージング装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502472A (ja) * 2001-09-20 2005-01-27 メンリー コーポレイション 金属管の製造方法
JP2007054867A (ja) * 2005-08-25 2007-03-08 Jaroc:Kk 温間加工用スウェージング装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113166854A (zh) * 2020-06-08 2021-07-23 南京江东工贸有限公司 一种金属材料及其制备方法与应用
JP7508630B1 (ja) 2023-03-27 2024-07-01 株式会社古河テクノマテリアル 管材および管材の製造方法、ならびにステント、ガイドワイヤおよびプレッシャーガイドワイヤ

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