WO2006033316A1 - 圧入接合における熱処理方法及びこれによる接合構造 - Google Patents
圧入接合における熱処理方法及びこれによる接合構造 Download PDFInfo
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- WO2006033316A1 WO2006033316A1 PCT/JP2005/017267 JP2005017267W WO2006033316A1 WO 2006033316 A1 WO2006033316 A1 WO 2006033316A1 JP 2005017267 W JP2005017267 W JP 2005017267W WO 2006033316 A1 WO2006033316 A1 WO 2006033316A1
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- heat treatment
- joint
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- fit
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
Definitions
- the present invention relates to a heat treatment method in press-fit joining between members constituting a metal element part, and a joining structure using the heat treatment method.
- the present applicant previously disclosed a press-fit joint structure in Patent Documents 3 and 4.
- a plate as the first member 2 hole 3 is drilled
- a shaft as the second member 4 the cross section is The shape similar to that of the hole 3 is press-fitted and there is another type in which the cylinder as the second member is press-fitted to the cylinder as the first member.
- the jig used for press-fit joining has a lower chrome copper mold 10 provided with a cylindrical hole in the upper part and an upper chrome copper mold 12 provided with a cylindrical hole in the lower part.
- the lower mold 10 and the upper mold 12 each function as an electrode and can be energized between the two molds, and the upper mold 12 falls under pressure.
- a joint interface 8 of solid phase welding is formed at the joint 6 between the first member 2 and the second member 4.
- Fig. 10 (a) is a macro photograph of the vicinity of the press-fitted joint
- Fig. 10 (b) is an enlarged photograph of the joint.
- the bonding interface of the bonded portion is formed in the vertical direction, and the force is high.
- the bonding interface 8 is dense because good bonding is performed.
- Patent Document 1 Japanese Patent Laid-Open No. 7-1150
- Patent Document 2 JP-A-8-174234
- Patent Document 3 JP 2001-353628
- Patent Document 4 JP 2004-114146 A
- carburizing treatment is often performed for the purpose of improving wear resistance and strength.
- the carburizing treatment is performed after applying a carburizing agent such as applying a carburizing agent to the welded portion so that the carburizing treatment is not performed. Is common.
- the reason why the welded part between the members is not carburized is that welding defects such as blowholes may occur in this welded part, and hardening the welded part by carburizing treatment reduces toughness and stress. This is because strength problems such as concentration occur.
- the weld is generally Since this is a part where it is not necessary to increase the surface strength, in consideration of these points, the carburizing treatment is not performed on the welded portion, and the anti-carburizing treatment is performed.
- the above tempering is a force that reheats the first member 2 and the second member 4 by conducting tempering (heat treatment) energization. Therefore, the bond line cannot be eliminated.
- a local corrosion potential difference may be generated and local corrosion may occur. In such a case, it cannot be used for high corrosion resistance.
- products with such a risk cannot be used for applications that require functions such as high pressure resistance, high airtightness, ductility, and toughness. In this way, it is a necessary organization for element parts that require quality until the joint is integrated metallurgically.
- the present invention has been made in view of the above problems, and a heat treatment method and a bonding structure in press-fitting of element members exhibiting excellent corrosion resistance, pressure resistance, high airtightness, ductility, toughness, and the like.
- the purpose is to provide.
- the heat treatment method in press-fitting presses the second member into the hole of the first member with a predetermined pressure and energizes the two members.
- the electrical resistance heat is generated at the joint between the two, and the second member is placed in the hole.
- Press-fit forming a joining interface at the joining surface portion between the second member and the inner wall surface of the hole, performing press-fit joining with the brace joining as a solid-phase joining, and heating and holding the joining portion by the press-fit joining
- annealing is performed, and the joint is dispersed and disappeared by this heat treatment, and the metal structure in the joint of both members joined by the press-fitting is integrated or homogenized.
- a heat treatment method in press-fitting according to the present invention is that the first member and the second member are made of the same material.
- the heat treatment method in press-fit bonding according to the present invention is that the temperature of the heat treatment is set to a recrystallization temperature or higher.
- the heat treatment method in the press-fit joining according to the present invention is performed by adjusting the temperature of the heat treatment when carbon steel having a ferrite structure, alloy steel having an austenite structure, or alloy steel having a ferrite structure is used as the material. That is, it is higher than the A1 transformation point or higher than the recrystallization temperature.
- the heat treatment method in the press-fitting according to the present invention is that the time for heating and holding is set to 1 hour or more. Moreover, the heat treatment method in the press-fit bonding according to the present invention is that the temperature of the heat treatment is set to be equal to or lower than the temperature of diffusion annealing.
- the heat treatment method in press-fitting presses the second member into the hole of the first member with a predetermined pressure, and energizes the two members to cause electrical resistance heat at the joint.
- the second member is press-fitted into the hole, a bonding interface is formed at the bonding surface portion between the second member and the inner wall surface of the hole, and the parenthesis bonding is a solid-state bonding.
- the heat treatment method in press-fitting according to the present invention includes the surface layer of both members including the joint by carburizing without performing a carbon-proofing process on the joint between the first member and the second member. It is quench hardening.
- a heat treatment method in press-fitting according to the present invention is a material for the first member and the second member.
- the materials used were steel for general processing, stainless steel, carbon steel for machine structure, alloy steel for machine structure, or titanium.
- the joining structure in the press-fitting according to the present invention is a configuration including the first member and the second member joined by the heat treatment method in the press-fitting as described above.
- press-fit joining is performed in which the second member is joined in a solid state in the hole of the first member, and the joint is heat-treated by annealing, and the recrystallization temperature Since the joint is dispersed and disappeared by heating and holding at the above temperature, the metal structure in the joint can be integrated or homogenized, and high-quality annealing can be performed. There is an effect that good corrosion resistance can be obtained without causing a difference in corrosion potential between the members and that a bonded structure having excellent quality in terms of pressure resistance can be obtained.
- this annealing can be performed at a temperature lower than the general diffusion annealing temperature, it is possible to prevent the coarsening of the metal crystal in the base material portion other than the joint portion, thereby lowering the material strength and lowering the toughness. It has the outstanding effect that it can prevent etc.
- the bonding interface is cleaned, bonding is performed well, and the strength is excellent.
- press-fitting is performed in which the second member is joined in a solid phase in the hole of the first member, and the surface layers of both members are quenched and hardened by carburization. Therefore, the surface layer of the joint structure member has high hardness and excellent overall toughness and strength, and the metal structure is integrated or homogenized at the joint. Furthermore, since the joint is very close to the base material, a carburized layer with a uniform carburization depth is formed at the joint as well as the base material. Is effective. In addition, the carburizing treatment process can be omitted because the carburizing treatment can be performed without the need for a carburizing treatment at the joint between the first member and the second member. Contributes to reduction.
- FIG. 1 is a view showing a press-fit joint structure using a first material according to an embodiment of the present invention, wherein (a) is a plan view and (b) is an A_A cross-sectional view.
- FIG. 2 is a view showing a press-fit joint structure using a second material according to the embodiment of the present invention, wherein (a) is a plan view and (b) is a cross-sectional view along BB.
- FIG. 3 A metal micrograph of the press-fit joint in test (i) according to the embodiment.
- (A) is an observation of the whole joint at a low magnification (22.5 times).
- (b) is an observation of the microstructure of the joint at high magnification (100 times).
- FIG. 4 A metal micrograph of the press-fit joint in the test (ii) according to the embodiment.
- (A) is an observation of the whole joint at a low magnification (22.5 times).
- (b) is an observation of the microstructure of the joint at high magnification (100 times).
- FIG. 5 shows a metal micrograph of the press-fit joint after the annealing heat treatment in test (iii) according to the embodiment, (a) at a low magnification (37.5 times). (B) is an observation of the microstructure of the joint at a high magnification (400 times).
- FIG. 6 A metal micrograph of a press-fit joint in test (iv) according to the embodiment.
- (A) is an observation of the entire joint at a low magnification (37.5 times). Yes,
- (b) shows the microstructure of the joint at high magnification (400 times).
- FIG. 7 is a diagram showing a temperature range of annealing in the FeC phase diagram. (From the Japan Steel Association: Steel bar and wire manual)
- FIG. 8 shows a metallographic micrograph of a press-fit joint after heat treatment by carburizing (the black circular portion near the center is a groove for storing burr) according to the second embodiment of the present invention. It is.
- FIG. 9 relates to a conventional example, (a) is an explanatory view of a press-fitting method, and (b) is a diagram showing a state after press-fitting.
- FIG. 10 A metal micrograph of the joint in press-fit welding, (a) observing the whole joint at a low magnification (the black circular part near the center is the groove for burr storage) (B) is an observation of the microstructure of the joint at high magnification.
- press-fitting In press-fitting according to this embodiment, the processes and operations related to basic press-fitting. The use is the same as that described in the section of the prior art, and the detailed description and description thereof are omitted here.
- Figure 1 shows a press-fit structure using austenitic stainless steel (eg, SUS304) as the first material.
- austenitic stainless steel eg, SUS304
- This material is generally difficult to weld.
- Stainless steel was used because this material is used in parts that require corrosion resistance, and so on, to investigate corrosion-resistant materials.
- the structure is uneven and the presence of joint lines.
- the press-fitting the diameter of the hole 23 was 9.3 mm, the press-fitting allowance (d) was 0.5 mm, and the press-fitting depth (h) was 4.5 mm.
- press-fitting is performed with a constant pressure and a constant descent speed, and the joint is heated instantaneously, so that the tip of the shaft body 24 is a hole in the plate 22 in a short time. Press-fit into part 23 to complete joining. At this time, a joint interface of solid phase welding is formed between the shaft body 24 and the hole 23 of the plate 22. In solid-phase welding, the fact that a clean surface structure is obtained on the joint surface affects the quality of the joint.
- the wall surface between the plate and the shaft body is squeezed between the wall surfaces of the plate and the shaft body by the movement in the sliding direction, whereby the surface impurity layer is removed. Then, the surface is cleaned, and solid phase welding is performed on this clean structure. After the press-fitting is completed, the hardness of the base material of the joint is recovered by cooling, and the joint is firmly joined.
- FIG. 2 shows a press-fit joint structure using chromium molybdenum steel (for example, SCM415) as the second material.
- SCM415 chromium molybdenum steel
- This is made by press-fitting a circular solid body or hollow shaft 28 as a second member to a circular cylindrical body 26 hole 27 as a first member, and the material of each member is the above SCM415. It is. Chromium molybdenum steel was used because this material is used for containers, pipes, etc., where pressure resistance is required, so it is necessary to study pressure-resistant materials.
- the diameter of the hole 27 was 12. Omm
- the press-fitting allowance (d) was 0.2 mm
- the press-fitting depth (h) was 2.1 mm.
- the press-fit joining using the second material is performed in the same manner as in the case of the first material, and the cylindrical body 26 of the first member and the shaft body 2 of the second member. A joint interface of solid phase welding is formed between the 8 joints.
- the press-fit bonding method is a solid-phase bonding method in which the press-fitting member and the press-fitted member are heated and softened by electrical resistance heating, and the press-fitting member is joined by press-fitting. For this reason, the joint interface is ironed, the oxide film at the joint is eliminated, and there is no oxide film.
- the electrical resistance given by the joining method according to this embodiment Since the temperature rise due to is not so high as to melt the material, this structure remains without recovering to the recrystallized structure.
- the member subjected to the above press-fitting method is taken out, energy is applied by heat treatment to the joint in another step, and the diffusion of the material near the joint line (joint interface) Try how much is done.
- These heat treatments are performed by adding a heat treatment step in a normal heating furnace (or continuous furnace) after the members are press-fitted together.
- annealing heat treatment was performed in a heating furnace at two different heat treatment temperatures.
- One test (i) of this in-house test A was heat-treated for 1 hour at 900 ° C, and the other test (ii) was 1 hour at 1000 ° C.
- An annealing heat treatment was performed. After heating by heat treatment here, cool by standing did.
- FIGS. 3 (a) and 3 (b) show metal micrographs of the press-fit junction 29 after the annealing heat treatment of test (i).
- Figure (a) shows the structure at low magnification
- Figure (b) shows the structure at high magnification.
- traces of the joint structure remain in the upper and lower direction of the center.
- Figures 4 (a) and 4 (b) show metallographic micrographs of the press-fit joint 29 after the heat treatment for annealing in test (ii).
- (B) is an observation of the structure at a high magnification. In this test (ii), as shown in the photograph, the structure of the joint is almost disappeared and a uniform recrystallized structure is formed.
- annealing heat treatment was performed in a heating furnace divided into two types of heat treatment temperatures.
- annealing was performed for 1 hour at a temperature of 600 ° C, and in another test (iv) for 1 hour at a temperature of 700 ° C.
- An annealing heat treatment was performed.
- the heat treatment here is high-temperature annealing. Also, in this heat treatment, after heating, it was cooled by natural cooling in the furnace.
- FIGS. 5 (a) and 5 (b) show the metal in the press-fit joint 25 after the annealing heat treatment in test (iii).
- a micrograph is shown.
- Fig. 11 (a) shows the entire joint observed at a low magnification
- Fig. 10 (b) shows the microstructure of the joint at a high magnification.
- a trace of the structure of the joint is left in the central vertical direction.
- FIGS. 6 (a) and 6 (b) show metal micrographs of the press-fitted joint 25 after the annealing heat treatment of test (iv).
- FIG. 6 (a) shows a low magnification
- Figure (b) shows the structure observed at high magnification.
- the traces of the joint structure disappeared and a uniform recrystallized structure was formed.
- the temperature of the A1 transformation point is about 700 ° C as shown in Fig. 7.
- the temperature near the A1 transformation point diffuses and the metal structure is integrated or homogenized metallurgically. I was able to confirm. Also, as in test (m)
- the microstructure of press-fit joints in chromium-molybdenum steel is integrated or homogenized by heating and holding at a temperature above the A1 transformation point for 1 hour or more. Also, even if the temperature is higher than the recrystallization temperature, new grains and crystal grains without processing strain are generated. Therefore, the heat treatment is held at a temperature higher than the recrystallization temperature so that the metal structure of the joint is well integrated. It is considered a thing. In addition, it is considered that the metal structure of the joint portion can be expected by performing the above heat treatment at a temperature higher than the recrystallization temperature in the case where the above-described press-fitting of other metal materials is performed. The recrystallization temperature decreases as the degree of processing of the metal structure increases.
- the annealing temperature according to this embodiment is lower than the general diffusion annealing temperature (about 1150 ° C or higher), and the metal structure can be sufficiently integrated or homogenized.
- high-quality annealing can be performed by heat treatment at a low temperature, so that it is possible to prevent coarsening of the metal crystal in the base material portion other than the joint portion.
- the heat treatment according to this embodiment is excellent in that it can prevent a decrease in material strength and a decrease in toughness due to the coarsening of metal crystals. Has an effect.
- the temperature of the heat treatment is diffusion annealed and the temperature condition is satisfied, recrystallization is performed in addition to the welded portion, the crystal grain size increases and the toughness decreases.
- the metal structure can be integrated or homogenized in the welded portion, high-quality annealing can be performed, and corrosion resistance, pressure resistance, etc. are excellent. High quality joint structure.
- the metal structure of the joint portion by annealing which could not be adopted by the conventional technique, can be achieved, which is an excellent feature of the heat treatment technique according to this embodiment. is there.
- the above press-fit bonding enables quick bonding and easy manufacturing, and the manufacturing cost is low and economical, and the bonding is performed well and excellent in strength. Since the joining is solid phase welding, the heat affected range on the base metal is small, so there is an effect that high-precision joining is ensured and finishing accuracy is good. In addition, the toughness of the joint can be ensured, and if it is possible to perform excellent quality joining, there is an effect.
- shapes and materials other than those described above can be applied to the shapes and materials of the first member and the second member used in the embodiment.
- shape of the hole of the first member it is possible to apply to shapes other than a circle.
- the outer shape of the hole and the second member are similar, an appropriate press-fitting allowance is secured between them.
- the same press fitting and annealing as described above can be performed, and the same effect as above can be expected.
- steel materials for general processing high-tensile steel materials for automobiles, other metal materials, SUS (stainless steel), a combination of SUS and carbon steel, carbon steel for machine structures, mechanical structures Alloy steel, heat-resistant steel, tool steel, panel steel, pig iron, free-cutting steel, structural steel, steel pipes, wire rods and other steel materials, bearing steel, steel for general processing, steel for pressure vessels, titanium, aluminum, magnesium Light metals such as rum and light metal alloys are applicable.
- chromium molybdenum steel (SCM420) is used as the third material, press-fitting is performed in the same process as above, and carburizing is performed as a heat treatment.
- this press-fit joint structure using the third material is a press-fit joint with a circular cylindrical body as the second member and a solid or hollow shaft body as the second member. It is a thing.
- SCM420 is used as the third material. This is because it is suitable for carburizing treatment after press-fit joining.
- This press-fit joining method is a solid-phase joining method in which a press-fitted member softened by electric resistance heating is joined by press-fitting, so that a large plastic deformation occurs in the joint due to squeezing of the joint interface. This occurs and the structure near the joint also becomes a plastically deformed processed structure. In this joining method, since the temperature rise due to electrical resistance is small, the structure remains without recovering to a recrystallized structure.
- the joining structural member subjected to the press-fit joining is subjected to carburizing treatment as a heat treatment, and how much the material is diffused near the joining line (joining interface). Observe.
- gas carburizing was performed by butane transformation using a batch-type carburizing furnace, without carrying out the carburizing treatment of the joints.
- the above-mentioned joining structure member was carburized at a temperature of 930 ° C for 3 hours, then the temperature was lowered to 840 ° C, diffusion treatment was performed for 0.5 hours, and further oil cooling was performed at 150 ° C. Cooled to C. Furthermore, adding a nitriding step is effective because it improves mechanical properties such as wear resistance of the joint structure member.
- gas carburizing methods there are a method using a pit type carburizing furnace and a method using a continuous gas carburizing furnace. In addition to the gas carburization, there are various carburizing methods such as vacuum carburizing, and any carburizing method can be used.
- Fig. 8 shows a metallographic microscope photograph of the bonded structural member after the above press-fit bonding and carburizing treatment. As shown in this photograph, the surface layer of the bonded structural member is quenched and hardened by carburizing, the inside remains a soft structure, and the metal structure is homogenized at the bonded part. The carburization depth in this carburizing process is about 0.5 mm. [0054] Further, a carburized layer is formed substantially uniformly over the entire surface of the joint structure member, and the same uniform carburized layer is also formed at the joint, and a carburization depth similar to that of the base material is obtained. ing.
- this joint structure member has the same material composition as the joint part and the base material, the hardness of the joint part and the part other than this joint part is also different.
- low-carbon steel or low-carbon alloy steel with good workability is preferable, and steel for general processing, other metal materials, SUS (stainless steel) ), A combination of SUS and carbon steel, carbon steel for machine structures (SCM, SCR), alloy steel for machine structures, structural steel, steel pipes, wire rods and other steel materials, steel for general processing (S15 C), Titanium or the like is applicable.
- the carburized layer equivalent to the base material can be obtained as the surface layer of the bonded structural member, so that the overall strength is excellent with improved toughness.
- there is no need to perform a carburizing treatment when carburizing so the manufacturing process can be omitted, contributing to cost reduction.
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006536374A JP5033423B2 (ja) | 2004-09-21 | 2005-09-20 | 圧入接合における熱処理方法 |
KR1020067012226A KR101254348B1 (ko) | 2004-09-21 | 2005-09-20 | 압입접합에 있어서의 열처리방법 |
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JP2004-274144 | 2004-09-21 | ||
JP2004274144 | 2004-09-21 |
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WO2006033316A1 true WO2006033316A1 (ja) | 2006-03-30 |
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PCT/JP2005/017267 WO2006033316A1 (ja) | 2004-09-21 | 2005-09-20 | 圧入接合における熱処理方法及びこれによる接合構造 |
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JP (1) | JP5033423B2 (ja) |
KR (1) | KR101254348B1 (ja) |
CN (1) | CN101103128A (ja) |
WO (1) | WO2006033316A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012026205A1 (ja) * | 2010-08-24 | 2012-03-01 | 株式会社オーハシテクニカ | 疲労強度の高い接合部品の接合方法 |
WO2012026587A1 (ja) * | 2010-08-27 | 2012-03-01 | 株式会社エフ・シ-・シ- | 一体部材及びその製造方法 |
JP2014084504A (ja) * | 2012-10-24 | 2014-05-12 | Ohashi Technica Inc | 微細フェライト粒界析出型マルテンサイト組織を有する鋼製品及びその製造方法 |
JP2014532175A (ja) * | 2011-09-30 | 2014-12-04 | アレバ・エヌペ | 低炭素含有量を有するオーステナイトステンレス鋼から作製されたプリフォームから、耐摩耗性のおよび耐腐食性の原子炉のための被覆管を生産するための方法、対応する被覆管、および、対応する制御クラスター |
JP5763181B2 (ja) * | 2011-04-28 | 2015-08-12 | 株式会社オーハシテクニカ | 微細フェライト粒界析出型マルテンサイト組織を有する鋼製品の製造方法 |
JP2015172253A (ja) * | 2015-06-10 | 2015-10-01 | 株式会社オーハシテクニカ | 微細フェライト粒界析出型マルテンサイト組織を有する鋼製品 |
JP6109395B1 (ja) * | 2016-10-18 | 2017-04-05 | 株式会社エフ・シー・シー | 結合部品の製造方法 |
JP6200609B1 (ja) * | 2017-02-14 | 2017-09-20 | 株式会社エフ・シー・シー | 結合部品の製造方法 |
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JPS6363584A (ja) * | 1986-09-02 | 1988-03-19 | Nippon Steel Corp | 金属の固相接合方法 |
JPH0510320A (ja) * | 1991-07-03 | 1993-01-19 | Hino Motors Ltd | 変速機のメインシヤフトおよびその製造方法 |
JP2001353628A (ja) * | 2000-06-12 | 2001-12-25 | Ohashi Technica Inc | 軸体と板体との圧入接合構造 |
Family Cites Families (1)
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KR100224635B1 (ko) * | 1995-12-26 | 1999-10-15 | 이구택 | 청정강 제조용 슬래그 탈산제 |
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2005
- 2005-09-20 JP JP2006536374A patent/JP5033423B2/ja active Active
- 2005-09-20 CN CNA200580031823XA patent/CN101103128A/zh active Pending
- 2005-09-20 KR KR1020067012226A patent/KR101254348B1/ko not_active IP Right Cessation
- 2005-09-20 WO PCT/JP2005/017267 patent/WO2006033316A1/ja active Application Filing
Patent Citations (3)
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JPS6363584A (ja) * | 1986-09-02 | 1988-03-19 | Nippon Steel Corp | 金属の固相接合方法 |
JPH0510320A (ja) * | 1991-07-03 | 1993-01-19 | Hino Motors Ltd | 変速機のメインシヤフトおよびその製造方法 |
JP2001353628A (ja) * | 2000-06-12 | 2001-12-25 | Ohashi Technica Inc | 軸体と板体との圧入接合構造 |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012026205A1 (ja) * | 2010-08-24 | 2012-03-01 | 株式会社オーハシテクニカ | 疲労強度の高い接合部品の接合方法 |
US9044831B2 (en) | 2010-08-24 | 2015-06-02 | Ohashi Technica, Inc. | Method of joining part having high fatigue strength |
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JP2012045592A (ja) * | 2010-08-27 | 2012-03-08 | F C C:Kk | 一体部材及びその製造方法 |
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JP2014532175A (ja) * | 2011-09-30 | 2014-12-04 | アレバ・エヌペ | 低炭素含有量を有するオーステナイトステンレス鋼から作製されたプリフォームから、耐摩耗性のおよび耐腐食性の原子炉のための被覆管を生産するための方法、対応する被覆管、および、対応する制御クラスター |
US9914986B2 (en) | 2011-09-30 | 2018-03-13 | Areva Np | Method for producing, from a preform made of austenitic stainless steel with a low carbon content, a wear-resistant and corrosion-resistant cladding for a nuclear reactor, corresponding cladding and corresponding control cluster |
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JP2015172253A (ja) * | 2015-06-10 | 2015-10-01 | 株式会社オーハシテクニカ | 微細フェライト粒界析出型マルテンサイト組織を有する鋼製品 |
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JP2018065207A (ja) * | 2016-10-18 | 2018-04-26 | 株式会社エフ・シー・シー | 結合部品の製造方法 |
WO2018073932A1 (ja) * | 2016-10-18 | 2018-04-26 | 株式会社エフ・シー・シー | 結合部品の製造方法 |
CN109862995A (zh) * | 2016-10-18 | 2019-06-07 | 株式会社F.C.C. | 结合零件的制造方法 |
US10632516B2 (en) | 2016-10-18 | 2020-04-28 | Kabushiki Kaisha F.C.C. | Joint component manufacturing method |
US10730096B2 (en) | 2016-10-18 | 2020-08-04 | Kabushiki Kaisha F.C.C. | Joint component manufacturing method |
JP6200609B1 (ja) * | 2017-02-14 | 2017-09-20 | 株式会社エフ・シー・シー | 結合部品の製造方法 |
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KR101254348B1 (ko) | 2013-04-12 |
JPWO2006033316A1 (ja) | 2008-07-31 |
JP5033423B2 (ja) | 2012-09-26 |
CN101103128A (zh) | 2008-01-09 |
KR20070057067A (ko) | 2007-06-04 |
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