WO2013002314A1 - 原子力発電プラント用蒸気発生器伝熱管の製造方法および蒸気発生器伝熱管 - Google Patents
原子力発電プラント用蒸気発生器伝熱管の製造方法および蒸気発生器伝熱管 Download PDFInfo
- Publication number
- WO2013002314A1 WO2013002314A1 PCT/JP2012/066496 JP2012066496W WO2013002314A1 WO 2013002314 A1 WO2013002314 A1 WO 2013002314A1 JP 2012066496 W JP2012066496 W JP 2012066496W WO 2013002314 A1 WO2013002314 A1 WO 2013002314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing
- tube
- heat transfer
- steam generator
- transfer tube
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/023—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/06—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction
- B24B29/08—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction the cross-section being circular, e.g. tubes, wires, needles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/38—Single-purpose machines or devices for externally grinding travelling elongated stock, e.g. wire
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- 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
- C21D2261/00—Machining or cutting being involved
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/08—Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/006—Details of nuclear power plant primary side of steam generators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Definitions
- the present invention relates to a method of manufacturing a steam generator heat transfer tube used in a nuclear power plant and a steam generator heat transfer tube.
- a nuclear power plant generates steam by generating fission energy, spraying the steam on a turbine, and rotating it to generate power.
- the nuclear reactor is a boiling water light water reactor (BWR) that rotates the turbine with steam generated by fission energy, hot water (primary cooling water) generated by fission energy, and another steam (secondary cooling water). ), And the steam is used to rotate the turbine, and there are various types such as a pressurized water reactor (PWR).
- BWR boiling water light water reactor
- the primary cooling water pressurized to high pressure becomes hot water of about 300 ° C. without boiling, and a steam generator tubule having a diameter of about 2 cm installed innumerably in the steam generator (The secondary cooling water that is transferred through the SG tube) and flows outside the SG tube is heated and boiled.
- the primary cooling water that has been deprived of heat by the secondary cooling water returns to the reactor, is heated again, and the secondary cooling water that has become steam turns through the turbine, and then is cooled by the condenser, and again the steam generator Return to and heated.
- a nickel base alloy such as a 60% Ni-30% Cr-10% Fe alloy having excellent mechanical performance and excellent corrosion resistance is used for the steam generator member.
- SG tube after processing an alloy having a predetermined chemical composition into a predetermined product shape by hot processing and cold processing, solid solution of carbide generated during hot processing, removal of internal strain generated in the processing process, etc.
- first heat treatment process Heat treatment (annealing) process
- straightening process for adjusting linearity, repair of scratches caused by each process and adjustment of surface roughness
- first heat treatment step For the purpose of precipitating C solid dissolved in the polishing step and the first heat treatment step as Cr carbide (Cr 23 C 6 ) semi-continuously on the grain boundary and recovering the Cr-deficient layer in the vicinity of the Cr carbide It is manufactured through the heat treatment step (hereinafter referred to as “second heat treatment step”).
- Patent Documents 1 to 6 The applicant discloses the inventions according to Patent Documents 1 to 6 regarding the method of manufacturing the SG tube.
- Japanese Patent Laid-Open No. 05-112842 JP 05-195191 A Japanese Patent Laid-Open No. 7-252564 JP 2002-121630 A JP 2007-224371 A JP 2007-224372 A
- the polishing process for steam generator heat transfer tubes used in nuclear power plants must satisfy strict polishing allowance regulations (0.01 mm or more) and residual stress regulations on the pipe surface (138 MPa or less).
- belt paper type polishing has been employed in the conventional polishing process.
- a polishing process performed between the first heat treatment process and the second heat treatment process is performed using “Emery paper No. 320”.
- the front and rear heat treatment steps can be performed continuously, but the polishing step always requires replacement of the abrasive.
- the abrasive tends to fall off and the polishing amount tends to decrease. For this reason, since the replacement frequency of the polishing paper is increased, it has been a cause of reducing the production efficiency of the SG tube.
- a method (hereinafter referred to as “wheel type polishing”) in which a tube surface is polished using a self-driven flap foil is used in various fields.
- this wheel type polishing has a high grinding ability, it is suitable for highly efficient grinding, but has the following problems.
- the present inventors have a surface roughness Ra of the tube after the polishing step of 1 ⁇ m or less, preferably 0.5 ⁇ m or less, and a polishing amount (difference in outer diameter before and after polishing).
- a surface roughness Ra of the tube after the polishing step of 1 ⁇ m or less, preferably 0.5 ⁇ m or less, and a polishing amount (difference in outer diameter before and after polishing).
- the present inventors subdivide the polishing process in the steam generator heat transfer tube for a nuclear power plant into a rough polishing process, an intermediate polishing process, and a finish polishing process. In particular, each process is polished with a plurality of heads. It has been found that residual stress exceeding a specified value is not applied when a multistage polishing process is used.
- the present invention has been made on the basis of such knowledge, and an object thereof is to provide a method of manufacturing a steam generator heat transfer tube for a nuclear power plant and a steam generator heat transfer tube with improved manufacturing efficiency.
- the gist of the present invention is the following method for producing a steam generator heat transfer tube for a nuclear power plant.
- (D) The nuclear power plant according to any one of (A) to (C), wherein the surface roughness Ra of the tube after the polishing step is 1.0 ⁇ m or less, and the polishing amount after the polishing step is 80 ⁇ m or more.
- the production efficiency of the steam generator heat transfer tube for a nuclear power plant can be improved.
- the steam generator heat transfer tube for a nuclear power plant that is the subject of the present invention is a step of annealing the tube after obtaining a seamless tube by a normal process such as piercing rolling, drawing rolling, constant diameter rolling, etc.
- One heat treatment step a polishing step for polishing the outer surface of the tube, and a heat treatment step (the second heat treatment step described above) for performing a heat treatment in an environment of an oxidation-inhibiting atmosphere.
- the tube 1 is rotated in the circumferential direction (arrow A in the drawing) in the longitudinal direction (arrow in the drawing). B), and the wheel-type abrasive 2 is brought into contact with the outer surface of the tube 1 for polishing.
- polishing can be carried out by bringing the wheel-type abrasive 2 into contact with the outer surface of the tube 1 in the circumferential direction (arrow C in the figure).
- the mechanical strength of the abrasive is higher than that of the belt paper used in the conventional method, so it is easy to control the load during polishing. Even if the wheel material is worn, the wheel current is controlled so that the load current is constant (constant load control) while controlling the rotation speed of the electric motor that drives the wheel so that the outer peripheral speed of the abrasive is constant. By controlling the pressing force of the rod, it becomes easy to keep the polishing amount constant even if the wheel is worn.
- the skew angle is preferably adjusted so that the feed pitch is 5 to 15 mm / rev.
- the number of rotations of the tube is preferably set so that the rotation peripheral speed of the tube is equal to the peripheral speed of the wheel rotation, and is reverse to the rotation direction of the wheel.
- the maximum feed pitch (mm / rev) is desirably limited to 70% or less of the outer diameter value.
- the polishing step has a rough polishing step, an intermediate polishing step, and a finish polishing step, and at least the rough polishing step and the finish polishing step are each configured to polish with a plurality of abrasives.
- the polishing is performed until the predetermined polishing amount and the surface roughness are achieved by the three-step process in this way, the surface roughness of the outer surface of the tube can be easily adjusted while suppressing the residual stress generated in the tube, and sufficient. Since the polishing amount can be secured, the steam generator heat transfer tube polishing for a nuclear power plant can be efficiently performed. In particular, polishing with 5 or more abrasives is more preferable. However, since the equipment cost increases when the number of polishing heads is increased, the number of polishing heads is preferably 10 or less.
- the polishing step it is preferable to employ conditions such that the surface roughness of the tube and the polishing amount satisfy the following expression (1).
- the condition in the first abrasive material has the greatest influence. It defines the surface roughness Ra ( ⁇ m) and the polishing amount ( ⁇ m) after polishing with an abrasive.
- Ra 1 / OD 1 ⁇ 0.10 (1)
- the meaning of each symbol in the above formula is as follows.
- Ra 1 Surface roughness Ra ( ⁇ m) after polishing with the first abrasive OD 1 : Polishing amount after polishing with the first abrasive ( ⁇ m)
- Ra 1 / OD 1 is less than 0.10, the residual stress of the tube after the polishing step may exceed 138 MPa. Moreover, it is preferable that it is large from a viewpoint of reducing a residual stress. Therefore, it is preferable to adjust the surface roughness Ra and the polishing amount after polishing with the first abrasive so that Ra 1 / OD 1 is 0.10 or more. Ra 1 / OD 1 is more preferably 0.20 or more. On the other hand, if Ra 1 / OD 1 is too large, the initial polishing amount may be insufficient and the final polishing amount may not be achieved. Further, when the number of heads is small, it becomes difficult to achieve the final surface roughness. Therefore, Ra 1 / OD 1 is preferably 0.40 or less.
- (Ra i -Ra i + 1 ) / (OD i -OD i + 1 ) is too large, the polishing amount during intermediate polishing may be insufficient. Moreover, it becomes difficult to achieve the final surface roughness without improving the surface roughness. Therefore, (Ra i -Ra i + 1 ) / (OD i -OD i + 1 ) is preferably 0.05 or less in the case of a nickel-base alloy and 0.09 or less in the case of a ferritic stainless steel.
- the upper limit value of (Ra i ⁇ Ra i + 1 ) / (OD i ⁇ OD i + 1 ) may be set to an appropriate value depending on the material.
- the amount of polishing in each step of the rough polishing step, intermediate polishing step, and finish polishing step is distributed to approximately 0.04 mm, 0.03 mm, and 0.01 mm, and each step of the rough polishing step, intermediate polishing step, and finish polishing step
- each step of the rough polishing step, intermediate polishing step, and finish polishing step When the tube surface roughness Ra on the outlet side is 2.5, 1.0, and 0.5, respectively, for example, in the rough polishing step, 2 to 4 wheel type abrasives of # 80 are used.
- the intermediate polishing step can be performed by installing 2 to 6 # 120 wheel type abrasives
- the finish polishing step can be performed by installing 2 to 4 PVA wheel type abrasives. .
- the first heat treatment step can be performed under conditions normally employed to achieve solid solution of carbides generated during hot working, removal of internal strain generated in the processing steps, and the like.
- T ° C. the temperature at which the carbide of the alloy is completely dissolved, undissolved carbide is formed, and the tensile strength, 0.2% proof stress, hardness, etc. are more than necessary.
- the Cr carbide generated at the grain boundaries in the cooling process after annealing or the reheating and holding process of the next heat treatment may decrease, and the intergranular stress corrosion cracking resistance may be reduced.
- the holding temperature exceeds (T + 100) ° C.
- the crystal grain size is remarkably coarsened, the intergranular stress corrosion cracking resistance is lowered, and predetermined properties are also obtained in tensile strength, 0.2% proof stress, hardness, and the like. There is a risk that it will not be obtained.
- the preferable lower limit of the holding temperature is (T + 20) ° C.
- the preferable upper limit is (T + 80) ° C.
- the reason why the holding time is 1 minute or longer is that it is preferable to completely dissolve the carbides precipitated during hot working such as forging.
- the upper limit of the holding time is about 60 minutes in actual operation.
- the first heat treatment step After the first heat treatment step, it may be cooled to room temperature by forced cooling and then supplied to the next step.
- C dissolved in the first heat treatment step is precipitated as Cr carbide (Cr 23 C 6 ) semi-continuously on the grain boundary, and the Cr deficient layer near the Cr carbide is recovered.
- Cr carbide Cr 23 C 6
- the processing temperature exceeds 875 ° C., it may fall out of the Cr carbide generation temperature range of the alloy of the present invention and there is a risk that Cr carbide will hardly precipitate, but if it is less than 600 ° C., it must be maintained for more than 100 hours. There is a risk that the production efficiency will deteriorate. Therefore, the holding temperature is preferably in the range of 600 to 875 ° C.
- the holding time it is preferable to hold for 0.03 hours or more when the temperature is 800 to 875 ° C., and when the temperature is less than 800 ° C., the holding time is increased as the temperature decreases, and a sufficient amount of Cr carbide is precipitated at the grain boundaries. It is preferable to make it.
- the preferable upper limit of the holding time is 100 hours.
- the second heat treatment step After the second heat treatment step, it may be cooled to room temperature by forced cooling or the like and then supplied to the next step.
- Example 1 an experiment was conducted assuming a 10-series polishing apparatus using various count wheels as an abrasive. That is, 10 wheel-type abrasives with various counts were prepared, and nickel-base alloy tubes (60% Ni, 30% Cr, 10% Fe) were polished with each abrasive, and after polishing with each abrasive The surface roughness Ra, the polishing amount and the residual stress were measured. In this experiment, the polishing amount was set to 100 ⁇ m, the surface roughness Ra was set to 0.5 ⁇ m or less, and the residual stress was set to 138 MPa or less. The results are shown in Table 1.
- ⁇ Ra means “Ra i -Ra i + 1 ” and “ ⁇ OD” means “OD i -OD i + 1 ”.
- No. Nos. 1 to 3 are rough polishing steps.
- Nos. 4 to 7 are intermediate polishing steps.
- 8 to 10 are finish polishing steps.
- Ra 1 / OD 1 is as high as 0.289, and (Ra i -Ra i + 1 ) / (OD i -OD i + 1 ) is obtained after polishing with any abrasive. It was 0.015 or more, and the residual stress satisfied the target value even after polishing with any abrasive. The target polishing amount and surface roughness were also satisfied.
- Example 2 an experiment was conducted assuming a polishing apparatus in which five wheels with various counts were used as the abrasive. That is, five wheel-type abrasives with various counts were prepared, and 13% Cr ferritic stainless steel pipes were polished with the respective abrasives, and the surface roughness Ra, the polishing amount, and the residual after polishing with each abrasive Stress was measured. In this experiment, the polishing amount was 90 ⁇ m, the surface roughness Ra was 0.5 ⁇ m or less, and the residual stress was 138 MPa or less. The results are shown in Table 2.
- Ra 1 / OD 1 is 0.119, and (Ra i ⁇ Ra i + 1 ) / (OD i ⁇ OD i + 1 ) is obtained after polishing with any abrasive. It was 0.015 or more, and the residual stress satisfied the target value even after polishing with any abrasive. The target polishing amount and surface roughness were also satisfied.
- Example 3 an experiment was performed assuming a polishing apparatus in which five wheels with various counts were used as the abrasive.
- five wheel-type abrasives with various counts were prepared, and nickel-base alloy tubes (60% Ni, 30% Cr, 10% Fe) were polished with each abrasive, and after polishing with each abrasive
- the surface roughness Ra, the polishing amount and the residual stress were measured.
- the polishing amount was 85 ⁇ m
- the surface roughness Ra was 0.5 ⁇ m or less
- the residual stress was 138 MPa or less.
- Table 3 The results are shown in Table 3.
- Ra 1 / OD 1 is 0.103, and (Ra i ⁇ Ra i + 1 ) / (OD i ⁇ OD i + 1 ) is obtained after polishing with any abrasive. It was 0.015 or more, and the residual stress satisfied the target value even after polishing with any abrasive. The target polishing amount and surface roughness were also satisfied.
- Example 4 a nickel-base alloy tube (60% Ni, 30% Cr, 10% Fe) was polished (polishing rate: 8 m / min) using a polishing apparatus in which 10 wheels identical to those in Example 1 were arranged. The wheel life and operating rate at that time were investigated.
- a nickel-base alloy tube (60% Ni, 30% Cr, 10% Fe) was polished using two polishing apparatuses (10 stations in total) in which five belt papers were arranged side by side (polishing rate: 4 m / second). min), the availability factor at that time was investigated. In this experiment, the polishing amount was set to 100 ⁇ m and the surface roughness Ra was set to 0.5 ⁇ m or less. The results are shown in Table 4.
- the operating rate is “non-operating time / (operating time + non-operating time)” (however, operating time: polishing time of material for polishing equipment (including the operation time for charging the next material), non-operating time: worn polishing It is the total time of the material replacement time and the dummy material polishing time).
- the polishing ability (polishing amount per unit length) is gradually decreased with polishing.
- the polishing powder is likely to fall off, and the fluctuation of the polishing ability is particularly large, so that it is difficult to secure a predetermined polishing amount. Therefore, in belt paper polishing, it is common to polish a plurality of dummy materials in advance and polish the product after the fluctuation of the polishing capability becomes small.
- wheel polishing it is possible to control the load so that the polishing amount becomes constant immediately after the setup change. Therefore, in the wheel polishing, it is not necessary to polish the dummy material in advance, except for the work of checking the polishing quality at the time of setup change or replacement.
- Examples 5 to 9 an experiment was conducted assuming a polishing apparatus in which three consecutive wheels using various count wheels were used as the abrasive. That is, three wheel type abrasives with various counts were prepared, and nickel-base alloy tubes (60% Ni, 30% Cr, 10% Fe) were polished with each abrasive, and after polishing with each abrasive The surface roughness Ra, the polishing amount and the residual stress were measured. In this experiment, the target after polishing was 80 ⁇ m, the surface roughness Ra was 1.0 ⁇ m or less, and the residual stress was 138 MPa or less. The results of Examples 5 to 9 are shown in Tables 5 to 9, respectively.
- Comparative Examples 1 to 3 experiments were conducted assuming a polishing apparatus in which two, three, or five consecutive wheels using various count wheels as the abrasive were arranged. Nickel-based alloy tubes (60% Ni, 30% Cr, 10% Fe) were polished with the respective abrasives, and the surface roughness Ra, the polishing amount and the residual stress after polishing with each abrasive were measured. In this experiment, the target after polishing was 80 ⁇ m, the surface roughness Ra was 1.0 ⁇ m or less, and the residual stress was 138 MPa or less. The results of Comparative Examples 1 to 3 are shown in Tables 10 to 12, respectively.
- Examples 10 to 19 of the present invention experiments were conducted assuming a polishing apparatus in which five consecutive wheels using various count wheels were used as the abrasive.
- (Ra i -Ra i + 1 ) / (OD i -OD i + 1 ) was mainly changed.
- Five wheel-type abrasives with various counts were prepared, and nickel-base alloy tubes (60% Ni, 30% Cr, 10% Fe) were polished with each abrasive, and the surface after polishing with each abrasive Roughness Ra, polishing amount and residual stress were measured.
- the target after polishing was 70 to 90 ⁇ m
- the surface roughness Ra was 1.0 ⁇ m or less
- the residual stress was 138 MPa or less.
- the results of Examples 5 to 9 are shown in Tables 5 to 9, respectively.
- Ra 1 / OD 1 is within the range specified by the present invention, so that the residual stress and the polishing amount are within the target value range. I was able to.
- Examples 16 and 17 see Tables 19 and 20, since (Ra i -Ra i + 1 ) / (OD i -OD i + 1 ) was too small, the surface roughness deteriorated.
- Examples 20 to 23 an experiment was performed assuming a polishing apparatus in which five wheels with various counts were used as the abrasive.
- a ferritic stainless steel pipe SUS410L was polished, and the surface roughness Ra, the polishing amount and the residual stress after polishing with each abrasive were measured.
- the target after polishing was 70 to 85 ⁇ m
- the surface roughness Ra was 1.0 ⁇ m or less
- the residual stress was 138 MPa or less.
- Tables 23 to 26 The results are shown in Tables 23 to 26.
- Ra 1 / OD 1 is in the range specified by the present invention. Therefore, even in the polishing of ferritic stainless steel pipes, the residual stress and the polishing amount was able to be within the range of the target value.
- the production efficiency of the steam generator heat transfer tube for a nuclear power plant can be improved.
Abstract
Description
(B)前記研磨工程が、下記の(1)式を満足する、(A)の原子力発電プラント用蒸気発生器伝熱管の製造方法。
Ra1/OD1≧0.10 (1)
ただし、上記式中の各記号の意味は下記のとおりである。
Ra1:最初の研磨材での研磨後の表面粗さRa(μm)
OD1:最初の研磨材での研磨後の研磨量(μm)
Ra1/OD1≧0.10 (1)
ただし、上記式中の各記号の意味は下記のとおりである。
Ra1:最初の研磨材での研磨後の表面粗さRa(μm)
OD1:最初の研磨材での研磨後の研磨量(μm)
(Rai-Rai+1)/(ODi-ODi+1)≧0.010 (2)
ただし、上記式中の各記号の意味は下記のとおりである。
Rai:上流からi番目の研磨材での研磨後の表面粗さRa(μm)
ODi:上流からi番目の研磨材での研磨後の研磨量(μm)
i:正の整数
量が上記(2)式を満足する範囲とすることが好ましい。(Rai-Rai+1)/(ODi-ODi+1)は、残留応力を低下させる観点からは大きいことが好ましく、0.015以上とするのが好ましい。一方、(Rai-Rai+1)/(ODi-ODi+1)が大きすぎると、途中研磨の研磨量が不足することがある。また、表面粗さが改善されずに、最終的な表面粗さを達成することが困難となる。よって、(Rai-Rai+1)/(ODi-ODi+1)は、ニッケル基合金の場合は0.05以下、フェライト系ステンレス鋼の場合は0.09以下とするのが好ましい。(Rai-Rai+1)/(ODi-ODi+1)の上限値は、材質により適正値を設定すれば良い。
2.研磨材
Claims (5)
- 管を焼鈍する焼鈍工程と、管外面を研磨する研磨工程と、管を酸化抑制雰囲気の環境下で熱処理を行う熱処理工程とを有し、
前記研磨工程が、管を円周方向に回転させた状態で長手方向に移送し、該管外面にホイ-ル型の研磨材を当接させて研磨することを特徴とする原子力発電プラント用蒸気発生器伝熱管の製造方法。 - 前記研磨工程が、下記の(1)式を満足することを特徴とする請求項1に記載の原子力発電プラント用蒸気発生器伝熱管の製造方法。
Ra1/OD1≧0.10 (1)
ただし、上記式中の各記号の意味は下記のとおりである。
Ra1:最初の研磨材での研磨後の表面粗さRa(μm)
OD1:最初の研磨材での研磨後の研磨量(μm) - 前記研磨工程後における管の残留応力が138MPa以下であることを特徴とする請求項1または2に記載の原子力発電プラント用蒸気発生器伝熱管の製造方法。
- 前記研磨工程後における管の表面粗さRaが1.0μm以下であり、前記研磨工程後における研磨量が80μm以上であることを特徴とする請求項1から3までのいずれかに記載の原子力発電プラント用蒸気発生器伝熱管の製造方法。
- 前記研磨工程が、5連以上10連以下の研磨材で研磨されることを特徴とする請求項1から4までのいずれかに記載の原子力発電プラント用蒸気発生器伝熱管の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2839831A CA2839831C (en) | 2011-06-29 | 2012-06-28 | Producing method of heat-exchanger tube for steam generator for use in nuclear power plant and heat-exchanger tube for steam generator |
EP12738236.4A EP2728585B1 (en) | 2011-06-29 | 2012-06-28 | Method for producing steam generator heat transfer tube for nuclear power plant |
CN201280032232.4A CN103635973B (zh) | 2011-06-29 | 2012-06-28 | 原子能发电厂用蒸气发生器传热管的制造方法及蒸气发生器传热管 |
KR1020147002251A KR101602710B1 (ko) | 2011-06-29 | 2012-06-28 | 원자력 발전 플랜트용 증기 발생기 전열관의 제조 방법 및 증기 발생기 전열관 |
JP2012529829A JP5218704B1 (ja) | 2011-06-29 | 2012-06-28 | 原子力発電プラント用蒸気発生器伝熱管の製造方法および蒸気発生器伝熱管 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011144224 | 2011-06-29 | ||
JP2011-144224 | 2011-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013002314A1 true WO2013002314A1 (ja) | 2013-01-03 |
Family
ID=46551825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/066496 WO2013002314A1 (ja) | 2011-06-29 | 2012-06-28 | 原子力発電プラント用蒸気発生器伝熱管の製造方法および蒸気発生器伝熱管 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2728585B1 (ja) |
JP (1) | JP5218704B1 (ja) |
KR (1) | KR101602710B1 (ja) |
CN (1) | CN103635973B (ja) |
CA (1) | CA2839831C (ja) |
WO (1) | WO2013002314A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018144197A (ja) * | 2017-03-08 | 2018-09-20 | Jfe建材株式会社 | パイプ表面研磨方法 |
JP2019502106A (ja) * | 2015-11-24 | 2019-01-24 | フラマトムFramatome | 蒸気発生器並びに対応する製造及び使用方法 |
CN111266986A (zh) * | 2020-03-02 | 2020-06-12 | 璁稿嘲 | 一种箱包制造用拉杆表面抛光设备 |
JP2020144138A (ja) * | 2020-05-14 | 2020-09-10 | フラマトムFramatome | 蒸気発生器並びに対応する製造及び使用方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111113229A (zh) * | 2019-12-13 | 2020-05-08 | 马琴英 | 一种建筑领域用双工位式环保管道外壁除锈设备 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS624557A (ja) * | 1985-06-27 | 1987-01-10 | Kobe Steel Ltd | 円筒管の偏肉修正方法 |
JPH0280552A (ja) * | 1988-09-14 | 1990-03-20 | Sumitomo Metal Ind Ltd | 加熱器管用ステンレス鋼の熱処理方法 |
JPH05112842A (ja) | 1991-10-21 | 1993-05-07 | Sumitomo Metal Ind Ltd | 低被曝性で耐アルカリ腐食性の良好なNi−Cr合金 |
JPH05195191A (ja) | 1992-01-17 | 1993-08-03 | Sumitomo Metal Ind Ltd | 原子炉用伝熱管の表面処理方法 |
JPH07252564A (ja) | 1994-03-10 | 1995-10-03 | Sumitomo Metal Ind Ltd | 耐食性と強度に優れるNi基合金材 |
JP2002079444A (ja) * | 2000-09-07 | 2002-03-19 | Tokuyama Toshiba Ceramics Co Ltd | 石英ガラス材の外周面研削方法および石英ガラス材の外周面研削装置並びに石英ガラス材の外周面研削装置の制御方法 |
JP2002121630A (ja) | 2000-08-11 | 2002-04-26 | Sumitomo Metal Ind Ltd | Ni基合金製品とその製造方法 |
JP2007224372A (ja) | 2006-02-24 | 2007-09-06 | Sumitomo Metal Ind Ltd | 含Crニッケル基合金管の製造方法 |
JP2007224371A (ja) | 2006-02-24 | 2007-09-06 | Sumitomo Metal Ind Ltd | 含Crニッケル基合金管の製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19855102A1 (de) * | 1998-11-28 | 2000-06-08 | Loeser Gmbh | Vorrichtung zum Schleifen und Polieren |
ITMI20020684A1 (it) * | 2002-04-02 | 2003-10-02 | Olimpia 80 Srl | Apparecchiatura e procedimento per finitura superficiale di tubi mediante ruote lamellari |
FR2874119B1 (fr) * | 2004-08-04 | 2006-11-03 | Framatome Anp Sas | Procede de fabrication d'un tube de gainage de combustible pour reacteur nucleaire, et tube ainsi obtenu |
DE102006035164B4 (de) * | 2006-07-29 | 2009-01-15 | Walter Maschinenbau Gmbh | Werkzeugmaschine mit verbessertem Rundlauf |
CN201023204Y (zh) * | 2006-12-15 | 2008-02-20 | 中国科学院金属研究所 | 一种小直径管材、丝材抛磨机 |
FR2910912B1 (fr) * | 2006-12-29 | 2009-02-13 | Areva Np Sas | Procede de traitement thermique de desensibilisation a la fissuration assistee par l'environnement d'un alliage a base nickel, et piece realisee en cet alliage ainsi traitee |
-
2012
- 2012-06-28 WO PCT/JP2012/066496 patent/WO2013002314A1/ja active Application Filing
- 2012-06-28 CA CA2839831A patent/CA2839831C/en not_active Expired - Fee Related
- 2012-06-28 JP JP2012529829A patent/JP5218704B1/ja active Active
- 2012-06-28 KR KR1020147002251A patent/KR101602710B1/ko active IP Right Grant
- 2012-06-28 CN CN201280032232.4A patent/CN103635973B/zh active Active
- 2012-06-28 EP EP12738236.4A patent/EP2728585B1/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS624557A (ja) * | 1985-06-27 | 1987-01-10 | Kobe Steel Ltd | 円筒管の偏肉修正方法 |
JPH0280552A (ja) * | 1988-09-14 | 1990-03-20 | Sumitomo Metal Ind Ltd | 加熱器管用ステンレス鋼の熱処理方法 |
JPH05112842A (ja) | 1991-10-21 | 1993-05-07 | Sumitomo Metal Ind Ltd | 低被曝性で耐アルカリ腐食性の良好なNi−Cr合金 |
JPH05195191A (ja) | 1992-01-17 | 1993-08-03 | Sumitomo Metal Ind Ltd | 原子炉用伝熱管の表面処理方法 |
JPH07252564A (ja) | 1994-03-10 | 1995-10-03 | Sumitomo Metal Ind Ltd | 耐食性と強度に優れるNi基合金材 |
JP2002121630A (ja) | 2000-08-11 | 2002-04-26 | Sumitomo Metal Ind Ltd | Ni基合金製品とその製造方法 |
JP2002079444A (ja) * | 2000-09-07 | 2002-03-19 | Tokuyama Toshiba Ceramics Co Ltd | 石英ガラス材の外周面研削方法および石英ガラス材の外周面研削装置並びに石英ガラス材の外周面研削装置の制御方法 |
JP2007224372A (ja) | 2006-02-24 | 2007-09-06 | Sumitomo Metal Ind Ltd | 含Crニッケル基合金管の製造方法 |
JP2007224371A (ja) | 2006-02-24 | 2007-09-06 | Sumitomo Metal Ind Ltd | 含Crニッケル基合金管の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2728585A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019502106A (ja) * | 2015-11-24 | 2019-01-24 | フラマトムFramatome | 蒸気発生器並びに対応する製造及び使用方法 |
JP2018144197A (ja) * | 2017-03-08 | 2018-09-20 | Jfe建材株式会社 | パイプ表面研磨方法 |
JP7028565B2 (ja) | 2017-03-08 | 2022-03-02 | Jfe建材株式会社 | パイプ表面研磨方法 |
CN111266986A (zh) * | 2020-03-02 | 2020-06-12 | 璁稿嘲 | 一种箱包制造用拉杆表面抛光设备 |
CN111266986B (zh) * | 2020-03-02 | 2021-02-26 | 许峰 | 一种箱包制造用拉杆表面抛光设备 |
JP2020144138A (ja) * | 2020-05-14 | 2020-09-10 | フラマトムFramatome | 蒸気発生器並びに対応する製造及び使用方法 |
Also Published As
Publication number | Publication date |
---|---|
CN103635973B (zh) | 2016-03-30 |
CA2839831C (en) | 2016-12-13 |
EP2728585A4 (en) | 2015-04-08 |
JPWO2013002314A1 (ja) | 2015-02-23 |
EP2728585A1 (en) | 2014-05-07 |
JP5218704B1 (ja) | 2013-06-26 |
KR20140028125A (ko) | 2014-03-07 |
KR101602710B1 (ko) | 2016-03-21 |
EP2728585B1 (en) | 2016-03-30 |
CN103635973A (zh) | 2014-03-12 |
CA2839831A1 (en) | 2013-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5218704B1 (ja) | 原子力発電プラント用蒸気発生器伝熱管の製造方法および蒸気発生器伝熱管 | |
EP2728031B1 (en) | Austenitic stainless steel tube | |
JP6244938B2 (ja) | オーステナイト系ステンレス鋼溶接継手 | |
EP1361003A2 (en) | Method for manufacuturing seamless steel tube | |
EP2581464A1 (en) | Austenitic stainless steel tube having excellent steam oxidation resistance, and method for producing same | |
CN101956785B (zh) | 农耕机减速器零度弧齿锥齿轮及加工方法 | |
CN108356088B (zh) | 一种纯钛大规格板材的生产加工方法 | |
CN113913813A (zh) | 一种用于修复铬钼合金的纳米强化Inconel718激光涂层性能的方法 | |
CN110756616B (zh) | 一种高碳马氏体不锈钢管材减量化的制备方法 | |
CN108103495B (zh) | 一种耐高温高熵合金工具钢涂层材料及涂层的制备方法 | |
CN111618112A (zh) | 奥氏体耐热不锈钢无缝管的热挤压制造方法 | |
JP6432614B2 (ja) | 金属管の冷間圧延方法および製造方法 | |
CN116441862A (zh) | 一种延长衬板使用寿命的工艺 | |
CN115595471B (zh) | 利用合金粉末提高连续退火炉输送辊寿命的激光加工方法 | |
JP5462202B2 (ja) | 曲がり矯正方法 | |
CN110885922A (zh) | 高等级耐蚀合金冷轧薄型材料的制造方法 | |
CN115652205B (zh) | 一种不易产生裂纹的非调质曲轴用钢及表面质量控制方法 | |
CN111069708A (zh) | 一种应用于减速器的弧形齿加工工艺 | |
CN114700698B (zh) | 一种镍基耐腐蚀合金带材的加工工艺 | |
CN110355230B (zh) | 一种耐高温熔盐腐蚀u型换热管 | |
WO2020260299A1 (en) | A laying head pipe | |
CN104708090A (zh) | 一种高速钢轧辊的铣削方法 | |
CN116623024A (zh) | 细晶高强度GH4720Li合金小规格棒材的制备方法 | |
CN113134706A (zh) | 一种高温超长跨距大扭矩螺旋轴及其加工方法 | |
CN110607428A (zh) | 一种面心立方结构金属的耐腐蚀处理方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2012529829 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 201280032232.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12738236 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2839831 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012738236 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20147002251 Country of ref document: KR Kind code of ref document: A |