WO2005040446A1 - 溶射方法 - Google Patents
溶射方法 Download PDFInfo
- Publication number
- WO2005040446A1 WO2005040446A1 PCT/JP2004/015257 JP2004015257W WO2005040446A1 WO 2005040446 A1 WO2005040446 A1 WO 2005040446A1 JP 2004015257 W JP2004015257 W JP 2004015257W WO 2005040446 A1 WO2005040446 A1 WO 2005040446A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thermal spraying
- thermal
- spraying
- sprayed
- spraying method
- Prior art date
Links
- 238000007751 thermal spraying Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims description 53
- 238000005507 spraying Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 42
- 238000000227 grinding Methods 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 238000007788 roughening Methods 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims 3
- 238000007750 plasma spraying Methods 0.000 abstract description 21
- 230000008439 repair process Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010289 gas flame spraying Methods 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 29
- 239000011248 coating agent Substances 0.000 description 26
- 239000007789 gas Substances 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 238000005422 blasting Methods 0.000 description 23
- 230000003746 surface roughness Effects 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000005536 corrosion prevention Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Definitions
- the present invention relates to a thermal spraying method for forming a metal spray coating for corrosion protection on the surface of a metal body, and particularly to a thermal spraying method suitable for on-site repair of a steel structure.
- Patent Literature 1 describes a corrosion prevention structure of a steel structure in which thermal spraying is performed on a portion of a steel structure in a poor environment and weather resistant steel is used in a portion other than the portion of the bad environment. According to this anticorrosion structure, the corrosion resistance of the entire steel structure is improved, and construction costs and repair costs can be reduced.
- Patent Literature 2 describes a method for repairing a corrosion-resistant jungle film that forms a repair film. According to this repair method, it is said that repair on site can be performed with a longer life and higher reliability compared to the conventional method of repairing with a cold-setting paint.
- Thermal spray coatings have excellent properties such as corrosion resistance, heat resistance, and abrasion resistance, and thermal spraying is not limited to steel, which is a member of steel structures, and is widely used as a surface modification technology for various materials and products. It is used in various fields.
- thermal spraying a thermal spraying material heated in a molten or semi-molten state is sprayed onto a body to be thermal sprayed to form a thermal spray coating.
- the main thermal spraying methods include a gas frame thermal spraying method and a plasma thermal spraying method.
- a linear, rod-like, or powder-like spray material is heated using a combustion flame of oxygen and a combustible gas, and is melted or in a state close to the molten material, and is sprayed to a sprayed object.
- This is a thermal spraying method for forming a coating.
- This gas flame spraying method is the most popular because it is easy to operate and the equipment and operating costs are low.
- the plasma spraying method is a spraying method in which a sprayed material is heated and accelerated by using a plasma jet, and is melted or close to the molten state and sprayed onto a sprayed body to form a coating.
- This plasma spraying method can be used from ceramics with a high melting point to metals and plastics as the spraying material, and can be sprayed in an air atmosphere, an inert atmosphere or a reduced pressure atmosphere.
- the thermal spray material for plasma spraying is mainly powdery.
- Patent Documents 3-5 have proposed a plasma arc torch using a linear or rod-like spray material.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-89880
- Patent Document 2 Japanese Patent Application Laid-Open No. 2002-69604
- Patent Document 3 Japanese Patent Publication No. 5-80273
- Patent Document 4 Japanese Patent Publication No. 6-39682
- Patent Document 5 Patent No. 3261518
- blasting There are several methods for blasting. Generally, compressed air is used to apply natural minerals, artificial minerals, metallic grit, non-metallic grit, cut wire, etc. to the object to be sprayed. This is a method of projecting and exposing the substrate to the surface and forming irregular minute irregularities on the surface.
- the problem to be solved by the present invention is that when a metal spray material is sprayed on a metal body to form a spray coating for corrosion protection, practically sufficient adhesion between the spray coating and the object to be sprayed is obtained.
- the purpose of this study is to clarify the roughening conditions and spraying conditions of the object to be sprayed, and to improve the workability of the roughening process and reduce the spraying cost while maintaining the anticorrosion effect.
- the present inventors have conducted intensive studies on the effects of roughening conditions and spraying conditions of the object to be sprayed as pretreatment for thermal spraying on the adhesion between the sprayed coating and the object to be sprayed, and made a comparison. It has been found that even a sprayed object with a rough surface using a simple tool can achieve a practically sufficient adhesion of the sprayed coating by spraying under specific spraying conditions. Thus, the present invention has been completed.
- the thermal spraying method according to the present invention is a thermal spraying method in which a metal spray material is sprayed on a metal body, in particular, a thermal spraying method by plasma spraying to form a thermal spray coating for corrosion prevention, using a grinding tool.
- a step is included.
- thermal spraying device using a linear or rod-shaped metal spraying material as the plasma spraying device, and to use an aluminum alloy, more preferably an aluminum magnesium alloy, as the metal spraying material. Is desirable. Further, a step of performing a sealing treatment on the coating after thermal spraying may be included.
- Roughening with a grinding tool does not require large and powerful equipment as in the case of blasting, and small, portable tools can be used for on-site repairs on site. Also, the scattering of grinding powder is slight and the risk of environmental pollution is small. Further, if it is possible to perform the thermal spraying in conditions where the average area per one particle is 10000- 100000 / zm 2 of molten particles using an arc thermal spraying, method instead of the plasma spraying method, the same effects as described above, effects Can be obtained.
- FIG. 1A is a view schematically showing a layered state of a thermal spray coating in the case of thermal spraying by a plasma thermal spraying apparatus.
- FIG. 1B is a view schematically showing a laminated state of a thermal spray coating in the case of thermal spraying by a gas flame thermal spraying apparatus.
- FIG. 1C is a view schematically showing the state of lamination of a sprayed coating in the case of thermal spraying with a gas flame spraying apparatus, where the surface roughness is large.
- FIG. 2 is a perspective view showing an example of a grinding tool used in the embodiment.
- FIG. 3 is a view showing a structure of a main part of a plasma spraying apparatus used in an example under a sprayed state.
- the object of thermal spraying in the present invention is a metal body. Although thermal spraying itself is also applied to non-metallic objects, the present invention presupposes plasma spraying and aims at strengthening the anticorrosion function of metal structures and reducing repair costs. A thermal spraying method is used to form a metal sprayed coating.
- the surface roughening treatment as a pretreatment for thermal spraying is performed using a grinding tool.
- ⁇ ⁇ grinding tools refer to electric tools with abrasive grains fixed to a disk-shaped or belt-shaped base material, electric tools with flaps or wires implanted on the outer peripheral surface of wheels, etc. Some types are small enough to be hand-held, so they can be suitably used especially for on-site repairs.
- a number of parallel linear marks are generated on the surface.
- the grinding tool is moved in a certain direction, the linear marks are in a certain direction, and when the moving directions are crossed, the linear marks also cross.
- the roughening treatment of the present invention provides sufficient adhesion even with linear marks in a certain direction. Can be obtained.
- the intersection angle may be any number of times, but preferably the intersection angle is 60 to 90 degrees.
- the surface roughness obtained by this surface roughening treatment is optimal when the average roughness Ra is in the range of 2 to 10 ⁇ m, more preferably 5 to 8 ⁇ m. Further, it is preferable that the maximum roughness Rz is in the range of 20 to 100 ⁇ m and the peak peak value RPc of the roughness is in the range of 30 to 100.
- the surface roughness is in the above range, when the molten particles collide with the rough surface during thermal spraying, they spread without gaps on the surface, and the anchor effect of biting into the rough surface becomes stronger.
- the average surface roughness Ra is smaller than 2 m, a sufficient anchor effect cannot be obtained, and the adhesion of the sprayed coating decreases. If the average roughness Ra is larger, it is rather preferable in terms of the adhesion of the thermal sprayed coating, but in order to produce such a rough surface, it is necessary to increase the particle size of the abrasive grains used in the grinding tool. As the resistance increases, the burden on the operator who operates the grinding tool increases, making it impractical. On the other hand, when the surface roughness is extremely large, the molten metal cannot sufficiently spread over the rough surface, and a gap is generated between the surface and the molten particles, and conversely, the adhesion of the thermal spray coating decreases.
- the maximum roughness Rz is less than 20 m, it is necessary to have a uniform surface roughness in order to obtain an appropriate average roughness, and it is difficult to perform a roughening treatment using a grinding tool as described above. It becomes. If the maximum roughness Rz is greater than 100 m, a grinding tool with a large grinding particle diameter is required, but the large grinding particles are consumed quickly, making it difficult to perform a uniform construction and reducing workability. You. If the peak count value RPc of the roughness is less than 30, the number of irregularities is small and many small smooth portions are present, and the adhesion of the molten particles is reduced.
- a plasma spraying device preferably a spraying device using a linear or rod-shaped metal spraying material, is used as the spraying device.
- a thermal spraying device itself is known as described in Patent Documents 3 to 5, and a known thermal spraying device can be used in the present invention.
- the average area per molten particle when the molten particles of the thermal spraying material adhere to the surface of the object to be sprayed is 100 00 to 100000 ⁇ m 2.
- the condition is that thermal spraying is performed.
- plasma spraying is performed on the surface of the object to be sprayed with an average roughness Ra of 2 to 10 ⁇ m by pretreatment.
- the thermal spraying by the average area of 10000- 100000 ⁇ m 2 and Do that conditions 1 per grain molten particles when deposited on the spray surface, obtained stack of individual spray coating as shown in FIG. 1A
- a high adhesion of the thermal spray coating can be obtained as a whole. If the average area per molten particle is too small or too large, the gaps are formed between the individual sprayed coatings and The temperature of the projectile surface cannot be sufficiently increased, and sufficient adhesion of the sprayed coating cannot be obtained.
- the average area per molten particles one particle in the case of a gas flame spraying number one hundred and one several thousand; a zm 2, an arc spray coating average area per grain molten particles is the number one hundred and one several thousand m 2 gas Although it contains molten particles slightly larger than in the case of flame spraying, sufficient adhesion of the sprayed coating cannot be obtained if the average roughness Ra of the surface of the sprayed object is about 2—.
- the thickness of the thermal sprayed coating may be appropriately selected within the range of 50 to 200 m according to the required anticorrosion performance.
- Various metals such as conventionally known aluminum, zinc, copper, cobalt, titanium, and alloys thereof can be used as the metal as the thermal spray material.
- aluminum or aluminum alloys such as aluminum magnesium alloy and dumbbell aluminum alloy are particularly suitable from the viewpoint of sufficiently exhibiting the sacrificial anode function.
- a sealing treatment may be performed. Especially for on-site repairs, it is advisable to seal as soon as possible after thermal spraying.
- the sealing material conventionally known resins and organic chemicals can be used.
- the thermal spraying method of the present invention is applied to on-site repair of a steel structure in the order of main steps.
- the existing steel structure is a structure in which paint is applied on a zinc plated steel material, and a case where the paint is locally peeled off and the zinc plated corrosion is repaired by thermal spraying will be described as an example. .
- FIG. 2 is a perspective view showing an example of the grinding tool used in the present embodiment.
- the grinding tool 1 is an electric grinding tool called a grinding roller type sander, which is equipped with a sandpaper 3 on a roller 2 and rotates the surface to grind a damaged portion of a steel material.
- Sandpaper 3 is made of carbonized particles having a particle size of # 20- # 40 (average particle diameter of 1000-425 m), and is bonded with resinous binder such as elemental or alumina.
- resinous binder such as elemental or alumina.
- FIG. 3 is a view showing a structure of a main part of the plasma spraying apparatus used in the present embodiment in a sprayed state.
- the electrode 8 of the plasma torch 7 of the plasma spraying device 6 (the internal structure of the main body is omitted) is provided so as to protrude forward from the insulating rear wall 10 of the nozzle 9.
- the nozzle 9 has a cylindrical peripheral wall 11 connected to the rear wall part 10, a conical tapered cylindrical part 12 provided on the front side of the peripheral wall 11, and whose cross-sectional shape is rapidly reduced toward the front side. With.
- the peripheral wall 11 there are formed a plurality of inlets 13 through which the plasma gas flows into the nozzle 9 along the circumferential direction.
- an inert gas such as nitrogen, argon, and helium can be used alone or as a mixture.
- An outer peripheral nozzle 19 that ejects gas to the tip of the center line of the nozzle 9 along the outer peripheral surface is provided on the outer peripheral portion of the tapered cylindrical portion 12 of the nozzle 9.
- the gas air, nitrogen, argon, helium or the like is used.
- a supply device 15 for feeding an A-Mg alloy wire 14 as a thermal spraying material is provided on the tip side of the center line of the nozzle 9 and closer to the base side than the gas ejection part. ing.
- the supply device 15 includes a guide member 16 and an extruding roller 17.
- Electrode 8 is connected to the negative pole of DC power supply 18, and wire 14 is connected to the positive pole of DC power supply 18.
- the DC power supply 18 can supply a DC voltage of about 30 to 200 V and a DC current of about 50 to 500 A. Further, the DC power supply 18 can generate a high voltage of about 3000 V in a short time.
- the plasma spraying device 6 is arranged so that the center line of the nozzle 9 of the plasma spraying device 6 is perpendicular to the surface of the steel material 4 to be sprayed.
- the plasma gas flows from the inlet 13 of the plasma spraying device 6, the plasma gas generates a swirling flow along the peripheral wall 11.
- a spark discharge occurs between the electrode 8 and the wire 14.
- Plasma gas As the gas turns, the pressure in the center decreases, and the plasma gas in the center is preferentially discharged by spark discharge.
- a spark discharge occurs, the plasma gas force between the electrode 8 and the wire 14 turns on to form an ionized state, and a direct current flows.
- a DC current flows in the plasma gas, the gas is further turned into plasma, and a plasma arc flow is formed.
- the plasma arc flow flows along the central portion of the plasma gas which is depressurized by the swirling flow, and the plasma gas is heated by the plasma arc flow and blows out vigorously from the outlet 20 of the nozzle 9 as a plasma flame.
- the tip of the wire 14 is rapidly heated and melted by the plasma arc flow.
- the molten wire 14 becomes molten particles 21 and is blown off toward the steel material 4 by the plasma frame. Since an inert gas is used as the plasma gas, the amount of oxygen contacting the molten particles 21 is reduced, and oxidation of the formed thermal spray coating 5 is prevented.
- the wire 14 whose distal end is melted and lost is moved to the front side by the pushing roller 17 so that the distal end coincides with the center line of the nozzle 9.
- the outer peripheral nozzle 19 also allows the compressed gas to flow in the rearward direction, and ejects the gas in a conical shape from the front.
- the molten particles 21 are miniaturized, and have a size optimal for forming the thermal spray coating 5.
- the finely divided molten particles 21 collide with the surface of the steel material 4 and become flat, and a large number of the molten particles 21 are stacked, combined and cooled to form the thermal spray coating 5.
- the adhesion of the sprayed coating is 6-7 NZmm.
- the strength is about 2 and a sufficient adhesion force can be obtained.Roughening force with a surface roughness Ra of less than 15 m by grinding, if not, the adhesion of the sprayed coating will be 4 NZmm 2 or less, and practical adhesion I can't get the power.
- the surface roughness Ra in the case of blasting is about 15-40 m
- the gas flame spraying adhesion of about 6- 7NZmm 2 is obtained.
- the thermal spraying method of the present invention has been described above using a steel structure as an example of a metal body, the thermal spraying method of the present invention is applied to various metal structures including a steel structure and the corrosion prevention of its members. Can be. In addition, by appropriately selecting the material and the spraying conditions of the metal spray material, the present invention can be applied to structures and members other than metal bodies.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Bridges Or Land Bridges (AREA)
- Plasma Technology (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04792474A EP1679388A4 (en) | 2003-10-22 | 2004-10-15 | PROCESS FOR THERMAL SPRAYING |
KR1020067006647A KR101088005B1 (ko) | 2003-10-22 | 2004-10-15 | 용사 방법 |
US10/574,691 US7682667B2 (en) | 2003-10-22 | 2004-10-15 | Method of thermal spraying |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003362212A JP4502622B2 (ja) | 2003-10-22 | 2003-10-22 | 溶射方法 |
JP2003-362212 | 2003-10-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005040446A1 true WO2005040446A1 (ja) | 2005-05-06 |
Family
ID=34509977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/015257 WO2005040446A1 (ja) | 2003-10-22 | 2004-10-15 | 溶射方法 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1679388A4 (ja) |
JP (1) | JP4502622B2 (ja) |
KR (1) | KR101088005B1 (ja) |
CN (1) | CN100569989C (ja) |
TW (1) | TW200514869A (ja) |
WO (1) | WO2005040446A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8726874B2 (en) | 2012-05-01 | 2014-05-20 | Ford Global Technologies, Llc | Cylinder bore with selective surface treatment and method of making the same |
US8752256B2 (en) | 2008-04-21 | 2014-06-17 | Ford Global Technologies, Llc | Method for preparing a surface for applying a thermally sprayed layer |
US8833331B2 (en) | 2012-02-02 | 2014-09-16 | Ford Global Technologies, Llc | Repaired engine block and repair method |
US8877285B2 (en) | 2011-11-22 | 2014-11-04 | Ford Global Technologies, Llc | Process for repairing a cylinder running surface by means of plasma spraying processes |
US9079213B2 (en) | 2012-06-29 | 2015-07-14 | Ford Global Technologies, Llc | Method of determining coating uniformity of a coated surface |
US9382868B2 (en) | 2014-04-14 | 2016-07-05 | Ford Global Technologies, Llc | Cylinder bore surface profile and process |
US10220453B2 (en) | 2015-10-30 | 2019-03-05 | Ford Motor Company | Milling tool with insert compensation |
US10221806B2 (en) | 2012-05-01 | 2019-03-05 | Ford Global Technologies, Llc | Cylindrical engine bore |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4507786B2 (ja) * | 2004-09-17 | 2010-07-21 | 日産自動車株式会社 | 溶射前処理方法 |
JP4796362B2 (ja) * | 2005-09-13 | 2011-10-19 | 株式会社神戸製鋼所 | Lng気化器用伝熱管およびその製造方法 |
JP4742986B2 (ja) * | 2006-05-24 | 2011-08-10 | トヨタ自動車株式会社 | 溶射用マスキング治具 |
JP4602998B2 (ja) * | 2007-01-18 | 2010-12-22 | トーカロ株式会社 | 溶射皮膜形成方法 |
JP2009061465A (ja) * | 2007-09-05 | 2009-03-26 | Daido Steel Co Ltd | 冷間鍛造用金型及びその製造方法 |
JP4920560B2 (ja) * | 2007-11-15 | 2012-04-18 | 新日本製鐵株式会社 | 高力ボルト摩擦接合構造、および高力ボルト摩擦接合構造における金属溶射層の形成方法 |
JP5262369B2 (ja) * | 2008-07-10 | 2013-08-14 | Jfeスチール株式会社 | Al合金被覆した鋼構造物およびその防食被覆方法 |
CN102414280A (zh) | 2009-04-22 | 2012-04-11 | 阿尔法工业公司 | 导电性金属涂料和利用导电性金属涂料的防腐蚀方法以及防腐蚀修补方法 |
FR2959244B1 (fr) | 2010-04-23 | 2012-06-29 | Commissariat Energie Atomique | Procede de preparation d'un revetement multicouche sur une surface d'un substrat par projection thermique. |
TWI586446B (zh) * | 2013-12-18 | 2017-06-11 | 國立清華大學 | 電弧爐收集之集塵灰運用於化學迴圈燃燒程序之方法 |
KR101580682B1 (ko) * | 2014-07-28 | 2015-12-28 | 주식회사 혁성 | 상수원 수도 구조물의 친환경 방식 및 방오 코팅방법 및 이러한 방법으로 제조된 상수원 수도 구조물 |
JP6531736B2 (ja) * | 2016-07-29 | 2019-06-19 | ダイキン工業株式会社 | 海上輸送用冷凍又は冷蔵コンテナユニット |
KR20180040754A (ko) * | 2016-10-12 | 2018-04-23 | 케이씨에프테크놀로지스 주식회사 | 핸들링이 용이한 전해동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법 |
EP3899272B1 (en) * | 2018-12-19 | 2023-08-23 | Carrier Corporation | Aluminum compressor with sacrificial cladding |
JP7309544B2 (ja) * | 2019-09-13 | 2023-07-18 | 株式会社東芝 | コーティング方法及びコーティング構造 |
CN110484850A (zh) * | 2019-09-26 | 2019-11-22 | 中国人民解放军陆军装甲兵学院 | 一种用于渗氮基体上制备结合性能良好喷涂层的方法 |
KR102261843B1 (ko) * | 2021-01-21 | 2021-06-09 | (주)세원하드페이싱 | 논슬립 패널 및 그 제조방법 |
CN112727116B (zh) * | 2021-01-24 | 2022-08-26 | 新疆鑫瑞成建设工程有限公司 | 一种用于铺贴防水卷材的铺贴设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5446144A (en) * | 1977-09-20 | 1979-04-11 | Matsushita Electric Ind Co Ltd | Hot plate |
JPS61104062A (ja) * | 1984-10-23 | 1986-05-22 | Tsukishima Kikai Co Ltd | 金属またはセラミツク溶射被膜の封孔処理方法 |
JP2000064063A (ja) * | 1998-08-21 | 2000-02-29 | Nikken Toso Kogyo Kk | 金属の複合被膜並びにその形成方法 |
JP2002080956A (ja) * | 2000-09-07 | 2002-03-22 | Daihen Corp | 急激変化溶射面を有する傾斜溶射面の溶射加工方法 |
JP2003013195A (ja) * | 2001-06-27 | 2003-01-15 | Nippon Electric Glass Co Ltd | 白金被覆耐火物 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4762977A (en) * | 1987-04-15 | 1988-08-09 | Browning James A | Double arc prevention for a transferred-arc flame spray system |
US4788077A (en) * | 1987-06-22 | 1988-11-29 | Union Carbide Corporation | Thermal spray coating having improved addherence, low residual stress and improved resistance to spalling and methods for producing same |
GB8715035D0 (en) * | 1987-06-26 | 1987-08-05 | Sansome D H | Spray depositing of metals |
US5171360A (en) * | 1990-08-30 | 1992-12-15 | University Of Southern California | Method for droplet stream manufacturing |
DE4120387A1 (de) * | 1991-06-20 | 1992-12-24 | Kabelmetal Ag | Verfahren zur herstellung einer strukturierten oberflaeche auf einem aus kupfer oder einer kupferlegierung bestehendem halbzeug |
JP2729935B2 (ja) * | 1995-10-31 | 1998-03-18 | 大日本塗料株式会社 | 溶射被膜の封孔処理方法及び封孔材料 |
US6001426A (en) * | 1996-07-25 | 1999-12-14 | Utron Inc. | High velocity pulsed wire-arc spray |
KR100631275B1 (ko) * | 2000-11-17 | 2006-10-02 | 닛코킨조쿠 가부시키가이샤 | 파티클 발생이 적은 스퍼터링 타겟트 또는 배킹 플레이트 및 파티클 발생이 적은 스퍼터링 방법 |
JP4093782B2 (ja) * | 2002-03-28 | 2008-06-04 | 株式会社栗本鐵工所 | 鉄系基材の防食皮膜および防食方法 |
-
2003
- 2003-10-22 JP JP2003362212A patent/JP4502622B2/ja not_active Expired - Lifetime
-
2004
- 2004-10-15 KR KR1020067006647A patent/KR101088005B1/ko not_active IP Right Cessation
- 2004-10-15 CN CNB2004800305019A patent/CN100569989C/zh not_active Expired - Fee Related
- 2004-10-15 EP EP04792474A patent/EP1679388A4/en not_active Withdrawn
- 2004-10-15 WO PCT/JP2004/015257 patent/WO2005040446A1/ja active Application Filing
- 2004-10-20 TW TW093131838A patent/TW200514869A/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5446144A (en) * | 1977-09-20 | 1979-04-11 | Matsushita Electric Ind Co Ltd | Hot plate |
JPS61104062A (ja) * | 1984-10-23 | 1986-05-22 | Tsukishima Kikai Co Ltd | 金属またはセラミツク溶射被膜の封孔処理方法 |
JP2000064063A (ja) * | 1998-08-21 | 2000-02-29 | Nikken Toso Kogyo Kk | 金属の複合被膜並びにその形成方法 |
JP2002080956A (ja) * | 2000-09-07 | 2002-03-22 | Daihen Corp | 急激変化溶射面を有する傾斜溶射面の溶射加工方法 |
JP2003013195A (ja) * | 2001-06-27 | 2003-01-15 | Nippon Electric Glass Co Ltd | 白金被覆耐火物 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1679388A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8752256B2 (en) | 2008-04-21 | 2014-06-17 | Ford Global Technologies, Llc | Method for preparing a surface for applying a thermally sprayed layer |
US8877285B2 (en) | 2011-11-22 | 2014-11-04 | Ford Global Technologies, Llc | Process for repairing a cylinder running surface by means of plasma spraying processes |
US8833331B2 (en) | 2012-02-02 | 2014-09-16 | Ford Global Technologies, Llc | Repaired engine block and repair method |
US8726874B2 (en) | 2012-05-01 | 2014-05-20 | Ford Global Technologies, Llc | Cylinder bore with selective surface treatment and method of making the same |
US10221806B2 (en) | 2012-05-01 | 2019-03-05 | Ford Global Technologies, Llc | Cylindrical engine bore |
US9079213B2 (en) | 2012-06-29 | 2015-07-14 | Ford Global Technologies, Llc | Method of determining coating uniformity of a coated surface |
US9382868B2 (en) | 2014-04-14 | 2016-07-05 | Ford Global Technologies, Llc | Cylinder bore surface profile and process |
US10220453B2 (en) | 2015-10-30 | 2019-03-05 | Ford Motor Company | Milling tool with insert compensation |
Also Published As
Publication number | Publication date |
---|---|
CN100569989C (zh) | 2009-12-16 |
JP4502622B2 (ja) | 2010-07-14 |
JP2005126750A (ja) | 2005-05-19 |
KR101088005B1 (ko) | 2011-12-01 |
TWI341876B (ja) | 2011-05-11 |
KR20060125714A (ko) | 2006-12-06 |
EP1679388A1 (en) | 2006-07-12 |
TW200514869A (en) | 2005-05-01 |
CN1867691A (zh) | 2006-11-22 |
EP1679388A4 (en) | 2008-03-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005040446A1 (ja) | 溶射方法 | |
US10272468B2 (en) | Integrated fluidjet system for stripping, prepping and coating a part | |
US20060090593A1 (en) | Cold spray formation of thin metal coatings | |
JP5886258B2 (ja) | 橋梁の防錆被膜形成方法 | |
US7682667B2 (en) | Method of thermal spraying | |
US20110256389A1 (en) | Compressor Anti-Corrosion Protection Coating | |
CN107201491A (zh) | 一种钻井隔水套管电弧喷涂防护涂层的制备方法 | |
CN106436500B (zh) | 一种磁悬浮用导轨及其制备方法 | |
JP2006131997A (ja) | ワークピースの修復方法 | |
US20130040538A1 (en) | Method and equipment for removal of ceramic coatings by co2 coatings | |
US6190740B1 (en) | Article providing corrosion protection with wear resistant properties | |
CN1763248A (zh) | 轴承表面防腐蚀处理工艺方法 | |
JP6008443B2 (ja) | 積層溶射被膜形成方法 | |
KR102004152B1 (ko) | 풍력발전기용 부품의 표면처리방법 | |
CN109321860A (zh) | 一种工件耐磨涂层及其喷涂方法 | |
CN108950452A (zh) | 一种镀铝硅线沉没辊用喷涂涂层及其制备方法 | |
JP5647608B2 (ja) | 耐溶融金属部材および耐溶融金属部材の製造方法 | |
US20090304942A1 (en) | Wire-arc spraying of a zinc-nickel coating | |
CN206256328U (zh) | 一种磁悬浮用导轨 | |
JP2004351348A (ja) | 立体駐車場の駐車パレット防錆施工法 | |
Kosarev et al. | Recently patented facilities and applications in cold spray engineering | |
JPH07825B2 (ja) | 金属溶射被膜の作製方法 | |
CN112538601A (zh) | 一种基于可重复使用的热喷涂用金属/聚合物复合结构遮挡工装的制造方法 | |
Groshart | Finishing in the green: Spray coatings | |
CN1593780A (zh) | 窄间隙电弧喷涂枪 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480030501.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 782/KOLNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007054062 Country of ref document: US Ref document number: 10574691 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067006647 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004792474 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1200600791 Country of ref document: VN |
|
WWP | Wipo information: published in national office |
Ref document number: 2004792474 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067006647 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10574691 Country of ref document: US |