WO2021199998A1 - アーク溶接用ソリッドワイヤ - Google Patents
アーク溶接用ソリッドワイヤ Download PDFInfo
- Publication number
- WO2021199998A1 WO2021199998A1 PCT/JP2021/009655 JP2021009655W WO2021199998A1 WO 2021199998 A1 WO2021199998 A1 WO 2021199998A1 JP 2021009655 W JP2021009655 W JP 2021009655W WO 2021199998 A1 WO2021199998 A1 WO 2021199998A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire
- copper plating
- welding
- amount
- plating layer
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 98
- 239000007787 solid Substances 0.000 title claims abstract description 42
- 239000010949 copper Substances 0.000 claims abstract description 90
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910052802 copper Inorganic materials 0.000 claims abstract description 60
- 238000007747 plating Methods 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000003921 oil Substances 0.000 claims description 38
- 235000019198 oils Nutrition 0.000 claims description 38
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 11
- 239000002480 mineral oil Substances 0.000 claims description 4
- 239000010775 animal oil Substances 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 3
- 239000008158 vegetable oil Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 18
- 238000005491 wire drawing Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005480 shot peening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0272—Rods, electrodes, wires with more than one layer of coating or sheathing material
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/404—Coated rods; Coated electrodes
Definitions
- the present invention relates to a solid wire for arc welding.
- Gas shielded arc welding using carbon dioxide is the most widely used welding method because of its high welding efficiency and low cost.
- the thickness and strength of steel materials are increasing due to the increase in size and height of buildings, and the demand for construction efficiency is increasing more and more.
- Welding methods that reduce spatter that reduces construction efficiency include pulse welding that stabilizes droplet migration by combining a large current pulse current and a small current pulse current, and wire feeding during arc welding.
- the application of the "wire feeding control arc welding method” that controls the droplet transfer by synchronizing the current and voltage waveforms is rapidly expanding.
- the wire feed control arc welding method realizes a stable and continuous short-circuit transition, and reduces spatter by reverse-feeding the weld wire at the moment of the short circuit.
- Patent Document 1 by using a welded wire containing molybdenum disulfide and a surface lubricant containing an appropriate amount of molybdenum disulfide and phospholipid on the surface of the wire, the wire feeding property can be stabilized even if the wire is continuously welded for a long time. It is disclosed. Patent Document 2 and Patent Document 3 disclose that by containing the above-mentioned surface lubricating oil or molybdenum disulfide on the surface where the dent exists, the feeding property is excellent and the arc is stabilized. Further, Patent Document 4 discloses a technique of an arc welding wire with copper plating in which a recess is formed. Such a technique stabilizes the sliding contact in the feeding tip, and even the physical clogging in the wire feeding system and the instability of the arc due to the damage of the feeding tip, which are problems in continuous welding for a long time. Is not considered.
- Patent Document 1 may not be sufficiently effective because the surface lubricant is separated in the middle during long feeding system or continuous welding for a long time. Further, if the detached surface lubricant is continuously welded without cleaning work, it physically hinders the feeding and may adversely affect the feeding. Further, the gas used is limited to the Ar—CO 2 mixed gas, and it is difficult to use it for carbon dioxide arc welding.
- Patent Documents 2 and 3 are limited to arc welding wires without copper plating.
- an arc welding wire without copper plating is used for long-term continuous welding, for which needs have been increasing in recent years, the arc becomes stable while becoming a contact due to an increase in contact electrical resistance at the feeding chip.
- the amount of heat generated at the tip of the power feeding chip is large, and the copper component of the molten power feeding chip is welded to the wire, so that the chip is severely damaged.
- Patent Document 4 stabilizes the sliding contact in the feeding tip, and is caused by physical clogging in the wire feeding system or damage to the feeding tip, which is a problem in continuous welding for a long time. It does not take into account the destabilization of the arc.
- the present invention has been made in view of the above-mentioned situation, and an object of the present invention is to provide a solid wire for arc welding having excellent arc stability even when continuously welded for a long time.
- the solid wire for arc welding according to the present invention is a solid wire for arc welding in which a copper plating layer is formed on the surface of a steel material.
- the amount of Cu in the steel material and the copper plating layer is 0.05 to 0.30% by mass per the total mass of the wire.
- the surface of the wire is coated with 0.05 to 0.20 g of oil per 1 kg of wire.
- the arithmetic average roughness Rac in the circumferential direction on the surface of the copper plating layer is 0.25 to 1.00 ⁇ m, and the arithmetic average roughness Ral in the longitudinal direction is 0.07 to 0.50 ⁇ m.
- the amount of Cu powder adhering to the wire surface is 0.03 g or less per 1 kg of wire.
- the oil contains at least one selected from vegetable oil, mineral oil, animal oil and synthetic oil, and 0.01 per kg of wire in the oil. It has ⁇ 0.03 g of sulfide.
- the total amount of solid matter present on the surface of the wire is 0.04 g or less per 1 kg of wire.
- the solid wire for arc welding according to the present embodiment is a solid wire for arc welding in which a copper plating layer is formed on the surface of a steel material, and the amount of Cu in the steel material and the copper plating layer is per total wire mass. It is 0.05 to 0.30% by mass, and 0.05 to 0.20 g of oil is applied to the surface of the wire per 1 kg of wire, and the arithmetic average roughness Rac in the circumferential direction on the surface of the copper plating layer is It is characterized in that it is 0.25 to 1.00 ⁇ m and the arithmetic average roughness Ral in the longitudinal direction is 0.07 to 0.50 ⁇ m.
- the copper plating layer is formed on the surface of the steel material for the purpose of improving the electrical conductivity between the power feeding tip and the welding wire. If the amount of Cu in the steel material and the copper plating layer is less than 0.05% by mass based on the total mass of the wire, the contact electrical resistance between the feeding chip and the welding wire increases, so that the feeding chip is significantly worn and the arc becomes unstable. Therefore, the amount of Cu in the steel material and the copper plating layer is 0.05% by mass or more, preferably 0.10% by mass or more, and more preferably 0.20% by mass or more based on the total mass of the wire.
- the amount of Cu in the steel material and the copper plating layer exceeds 0.30% by mass per the total weight of the wire, the copper plating layer on the surface of the weld wire peels off when it comes into contact with the wire feeding system used for welding. It will be easier. As a result, the peeled copper plating may remain inside the wire feeding system, which may hinder the wire feeding property. Therefore, the amount of Cu in the steel material and the copper plating layer is 0.30% by mass or less, preferably 0.27% by mass or less, and more preferably 0.25% by mass or less, based on the total mass of the wire.
- the amount of Cu includes not only Cu contained in the copper plating layer but also Cu in the steel material which is the core material of the welding wire. Therefore, the amount of Cu can be adjusted by the amount of copper plating formed on the surface of the steel material and the amount of Cu component contained in the steel material.
- the oil applied to the wire surface serves as a lubricant to ensure the slipperiness of the welded wire in the feed path.
- the type of oil is not particularly limited as long as it fulfills the above role, and examples thereof include liquid oils such as vegetable oils, mineral oils, animal oils, and synthetic oils. In addition, these may be used alone or in combination as long as they achieve the above object.
- the lubricant can be uniformly applied to the surface of the wire.
- excessive amounts of solid lubricant can affect the clogging of the feed system and should be limited to, for example, 0.15 g or less per kg of wire.
- the method of applying oil to the wire surface is not particularly limited and can be carried out by a known application method.
- the amount of oil applied to the wire surface is less than 0.05 g per 1 kg of wire, the amount of oil required to act as a lubricant is insufficient, so the wire feed is not stable and the arc stability is significantly improved. May interfere. Therefore, the amount of oil applied to the surface of the wire is 0.05 g or more, preferably 0.06 g or more, and more preferably 0.07 g or more per 1 kg of wire. On the other hand, if the amount of oil applied to the surface of the wire exceeds 0.20 g per 1 kg of wire, an excessive oil film may be formed and the power supply between the power supply tip and the welding wire may be hindered. Further, when welding is performed continuously for a long time, oil may remain inside the feeding system and impair arc stability. Therefore, the amount of oil applied to the surface of the wire is 0.20 g or less per 1 kg of the wire, preferably 0.15 g or less, and more preferably 0.10 g or less.
- the unevenness on the surface of the copper plating layer serves to retain the lubricating oil and the solid lubricant. Further, by stabilizing the contact point between the feeding tip and the welding wire, the arc is stabilized. For arc stability in continuous welding for a long time, it is effective to stably melt the feeding tip and suppress excessive wear of the feeding tip. By providing predetermined irregularities on the surface of the copper plating layer, the wire surface is stably melted and damage to the power feeding chip is reduced. Further, the lubricating oil and the solid lubricant trapped in the unevenness not only ensure the feeding property of the wire, but also promote stable melting in the feeding tip.
- the arithmetic mean roughness Rac in the circumferential direction on the surface of the copper plating layer is set to 0.25 ⁇ m or more, preferably 0.30 ⁇ m or more, and more preferably 0.35 ⁇ m or more.
- the arithmetic mean roughness Rac in the circumferential direction is set to 1.00 ⁇ m or less, preferably 0.50 ⁇ m or less, and more preferably 0.45 ⁇ m or less.
- the arithmetic mean roughness Ral in the longitudinal direction on the surface of the copper plating layer is less than 0.07 ⁇ m, the application of the feed lubricant becomes non-uniform, so that the wire feed is not stable and the arc is unstable. Become.
- the lubricant applied to the wire surface is likely to come off in the feeding path, the electrical conductivity at the tip of the feeding tip is lowered, and the arc becomes unstable. Therefore, the arithmetic mean roughness Ral in the longitudinal direction is 0.07 ⁇ m or more, preferably 0.10 ⁇ m or more, and more preferably 0.15 ⁇ m or more.
- the arithmetic mean roughness Ral in the longitudinal direction on the surface of the copper plating layer exceeds 0.50 ⁇ m, the partial exposure of the iron base increases, so that the variation in resistance during feeding increases and the arc does not occur. It will be stable. Therefore, the arithmetic mean roughness Ral in the longitudinal direction is 0.50 ⁇ m or less, preferably 0.40 ⁇ m or less, and more preferably 0.35 ⁇ m or less.
- the steel material In order to adjust the circumferential average roughness Rac and the longitudinal arithmetic average roughness Ral on the surface of the copper plating layer within the above numerical ranges, the steel material must be copper-plated before or copper-plated. After the application, it is preferable to provide a step of mechanically or chemically applying strong processing to the surface of the welding wire.
- the strong processing means a processing that combines mechanical processing such as shot blasting and sandpaper polishing, chemical processing such as hydrochloric acid immersion, and wire drawing processing such as hole dies or roller dies. ..
- the welding wire manufacturing process appropriately combines rolling, annealing, pickling, copper plating, and wire drawing. It can be realized by intentionally providing unevenness by machining, for example, by applying shot peening before copper plating the steel material. A steel round cut wire is projected onto the surface of a 5.5 ⁇ steel wire rod.
- the hardness of the shot material is harder than that of the steel wire material. It is preferable to use a shot material having a hardness of 300 to 400 HV and a particle size of about 0.3 to 0.8 mm with respect to the 5.5 ⁇ YGW12 original wire, and the surface coverage should be 98% or more. realizable.
- the unevenness can be provided by machining other than shot peening by polishing the surface of the steel wire with sandpaper before applying the copper plating treatment to the steel material. Apply # 80 to # 240 sandpaper to the surface of the 5.5 ⁇ steel wire and polish it.
- irregularities can be intentionally formed by using a general material in which ceramics such as SiC and Al 2 O 3 are solidified with an adhesive.
- the intentionally formed arithmetic average roughness is maintained by drawing the wire with a micromill or roller die rather than a hole die.
- the diameter can be reduced, and the arithmetic average roughness Rac in the circumferential direction and the arithmetic average roughness Ral in the longitudinal direction can be within the above-mentioned predetermined ranges in terms of the product diameter.
- the surface processing of the welding wire is performed before and after the formation of the copper plating layer, but considering the history of machining and wire drawing, it is effective to perform the above processing at the timing when the wire warp of the welding wire is large. .. That is, rather than forming a copper plating layer after drawing the welding wire to the product diameter, machining is applied before or after forming the copper plating layer in a state of a large diameter (wire diameter). It is important to extend the wire to the product diameter.
- the unevenness of the surface of the welded wire that has undergone strong processing needs to exist not only in the circumferential direction of the welded wire (in the case where the welded wire is cylindrical, the circumferential direction) but also in the longitudinal direction of the welded wire. ..
- irregularities having a predetermined arithmetic mean roughness not only in the circumferential direction but also in the longitudinal direction it is expected that the effect of capturing the lubricating oil and the solid lubricant will be improved.
- the amount of Cu powder attached is preferably 0.02 g or less, more preferably 0.01 g or less.
- ⁇ Amount of sulfide in oil 0.01 to 0.03 g per 1 kg of wire>
- the amount of sulfide in the oil further enhances the effect as a lubricant, thereby improving the feedability of the welding wire. Further, by positively melting the wire surface, damage to the feeding tip is reduced and arc stability is maintained even in continuous welding for a long time.
- the amount of sulfide in the oil is 0.01 g or more per 1 kg of wire, preferably 0.015 g or more, and more preferably 0.020 g or more.
- the amount of sulfide in the oil is 0.03 g or less per 1 kg of the wire, the above effect is saturated and it is possible to suppress the inhibition of the feeding of the welded wire. Therefore, the amount of sulfide in the oil is 0.03 g or less per 1 kg of wire, preferably 0.025 g or less, and more preferably 0.020 g or less. Specific examples of the sulfide include molybdenum disulfide and zinc sulfide.
- Total amount of solids present on the wire surface 0.04 g or less per 1 kg of wire>
- the solid matter existing on the surface of the copper plating layer is copper powder from which the copper plating has fallen off or reattached in the manufacturing process. In addition, it is a lubricant at the time of wire drawing.
- the total amount of solid matter present on the wire surface is 0.04 g or less per 1 kg of wire, the amount of solid matter remaining in the feeding system during long-term welding can be suppressed and the weldability can be improved. Therefore, the total amount of solids present on the wire surface is 0.04 g or less, preferably 0.03 g or less, and more preferably 0.01 g or less.
- the solid matter is, for example, copper powder, calcium or sodium-based soap, or the like.
- composition of the steel material used as the core material of the solid wire for arc welding according to the present embodiment is not particularly limited, but for example, C: 0.02 to 0.08% by mass and Si: 0. 01 to 1.00% by mass, Mn: 0.30 to 2.20% by mass, Ti: 0.001 to 0.30% by mass, Cu: 0.05 to 0.30% by mass, P: 0.025% by mass % Or less (including 0% by mass), S: 0.025% by mass or less (including 0% by mass), and the balance is composed of Fe and unavoidable impurities.
- one or more of Cr, Al and Mo may be contained in the range of 0.50% by mass or less, and N and O may be contained in the range of 0.010% by mass or less, respectively.
- the range of these chemical compositions is determined from the required mechanical properties of the weld metal part, the bead shape at the time of welding, the slag peelability, and the like.
- the molten ingot was rolled to 5.5 ⁇ by hot working, and then annealed in a temperature range of 700 to 800 ° C. Then, by pickling with hydrochloric acid, the oxide on the surface of the wire was chemically removed to control the unevenness. After that, copper plating with a thickness that does not erase unevenness is applied to the surface, and then the diameter is reduced to 1.2 mm with a roller die or a hole die with cold wire drawing, and oil (type: mineral oil) is applied to the surface. Was applied to obtain a welding wire (composition: YGW12, YGW18).
- steps such as hot water washing and cloth wiping were added for the purpose of removing foreign matter adhering to the wire surface after wire drawing. Further, for the purpose of improving lubricity, not only oil but also sulfide (type: molybdenum disulfide) was applied.
- Tables 1 and 2 show the welding conditions for gas shielded arc welding using the wires of the examples of the present invention and the comparative examples.
- Tables 1 and 2 show the welding conditions for gas shielded arc welding using the wires of the examples of the present invention and the comparative examples.
- Table 1 or 2 show the welding conditions for gas shielded arc welding using the wires of the examples of the present invention and the comparative examples.
- Table 1 or Under the welding conditions shown in Table 2 welding (bead-on plate) was continuously performed on the flat plate.
- the amount of Cu powder adhering to "-" indicates that it has not been measured. Further, when the amount of sulfide in the oil is " ⁇ 0.01", it indicates that the amount of sulfide is less than 0.01 g / kg.
- the wire No. which is an example of the invention. 1 to 8 are "the amount of Cu in the steel material and the copper plating layer per the total mass of the wire", “the amount of oil applied to the wire surface per 1 kg of the wire”, and “the arithmetic average in the circumferential direction on the surface of the copper plating layer”. Since all of “roughness Rac” and “arithmetic average roughness Ral in the longitudinal direction on the surface of the copper plating layer" satisfy the conditions of the present invention, the evaluation result was ⁇ or ⁇ , and the arc stability was excellent.
- the wire No. 1, 3, 4 and 6 to 8 are evaluated because "the amount of sulfide in oil per 1 kg of wire" and "the total amount of solids present on the surface of the wire per 1 kg of wire” satisfy the preferable conditions of the present invention.
- the result was ⁇ , and the arc stability was particularly excellent.
- the wire No. which is a comparative example. 9 to 14 are "the amount of Cu in the steel material and the copper plating layer per the total mass of the wire", “the amount of oil applied to the wire surface per 1 kg of the wire”, and “the arithmetic mean in the circumferential direction on the surface of the copper plating layer". Since at least one of "roughness Rac” and “arithmetic mean roughness Ral in the longitudinal direction on the surface of the copper plating layer" does not satisfy the conditions of the present invention, the arc stability was inferior.
- the evaluation result was x and the arc stability was inferior because the "arithmetic mean roughness Ral in the longitudinal direction on the surface of the copper plating layer" did not satisfy the conditions of the present invention.
- Wire No. 11 and 12 are "amount of oil applied to the surface of the wire per 1 kg of wire", “arithmetic mean roughness Rac in the circumferential direction on the surface of the copper plating layer” and “arithmetic mean in the longitudinal direction on the surface of the copper plating layer”. Since “average roughness Ral” does not satisfy the conditions of the present invention, the evaluation result was x, and the arc stability was inferior.
- the solid wire for arc welding according to the present invention is excellent in arc stability even when continuously welded for a long time.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Description
特許文献2や特許文献3には、くぼみが存在する表面に、上記表面潤滑油や二硫化モリブデンを含有することで、送給性に優れ、アークが安定することが開示されている。また、特許文献4には、くぼみを形成した銅めっき付きアーク溶接ワイヤの技術が開示されている。かかる技術は、給電チップにおける摺動接点を安定化させるものであり、長時間での連続溶接で問題となるワイヤ送給系での物理的な詰まりや給電チップの損傷によるアークの不安定化までは考慮されていない。
前記鋼材及び前記銅めっき層中のCu量が、ワイヤ全質量あたり0.05~0.30質量%であり、
ワイヤ表面に、ワイヤ1kgあたり0.05~0.20gの油が塗布されており、
前記銅めっき層の表面における、周方向の算術平均粗さRacが0.25~1.00μm、かつ、長手方向の算術平均粗さRalが0.07~0.50μmである。
銅めっき層は、給電チップと溶接ワイヤとの通電性を向上させる目的で、鋼材の表面に形成される。鋼材及び銅めっき層中のCu量が、ワイヤ全質量あたり0.05質量%未満では、給電チップと溶接ワイヤの接触電気抵抗が高まるため、給電チップが著しく摩耗し、アークが不安定となる。よって、鋼材及び銅めっき層中のCu量は、ワイヤ全質量あたり0.05質量%以上とし、好ましくは0.10質量%以上、より好ましくは0.20質量%以上とする。
ワイヤ表面に塗布される油は、送給経路内での溶接ワイヤのすべり性を確保するための潤滑剤としての役割を果たす。上記役割を果たすものであれば、油の種類は特に制限されないが、例として、植物油、鉱物油、動物油及び合成油などの液体油が挙げられる。また、上記目的を達成するものであれば、これらは単独で使用しても良く、併用して使用しても良い。
なお、ワイヤ表面への油の塗布方法は、特に制限がなく、公知の塗布方法により実施することができる。
一方、ワイヤ表面に塗布される油量が、ワイヤ1kgあたり0.20gを超えると、過度な油膜を形成し、給電チップと溶接ワイヤとの給電を阻害するおそれがある。また、長時間連続で溶接した場合に、油が送給系の内部に残留し、アーク安定性を阻害するおそれがある。よって、ワイヤ表面に塗布される油量は、ワイヤ1kgあたり0.20g以下とし、好ましくは0.15g以下、より好ましくは0.10g以下とする。
銅めっき層の表面における凹凸は、潤滑油や固体潤滑剤を保持する役割を果たす。また、給電チップと溶接ワイヤの接点を安定化させることで、アークが安定する。
長時間連続での溶接におけるアーク安定性に対しては、給電チップでの安定した溶融と、過剰な給電チップの摩耗を抑制することが有効である。銅めっき層の表面に所定の凹凸を設けることで、ワイヤ表面は安定して溶融するとともに、給電チップへのダメージも軽減する。また、凹凸に捕捉された潤滑油や固体潤滑剤は、ワイヤの送給性を確保するだけでなく、給電チップでの安定した溶融を促す。
一方、銅めっき層の表面における、周方向の算術平均粗さRacが1.00μmを超えると、銅めっき層において鉄地の露出箇所が増加するため、給電チップと溶接ワイヤの接触電気抵抗が高まり、給電チップが磨耗する。よって、周方向の算術平均粗さRacは1.00μm以下とし、好ましくは0.50μm以下、より好ましくは0.45μm以下とする。
一方、銅めっき層の表面における、長手方向の算術平均粗さRalが0.50μmを超えると、部分的な鉄地の露出が増加するため、給電時の抵抗のばらつきが増加し、アークが不安定となる。よって、長手方向の算術平均粗さRalは0.50μm以下とし、好ましくは0.40μm以下、より好ましくは0.35μm以下とする。
上記で説明したように、鋼材に銅めっき処理を施した後、溶接ワイヤ表面に強加工を加えられるが、銅めっき層は強度が低いため、例えば、伸線加工時に厳しい減面率にならないように適切な製造条件の管理のもとで行われる。この管理が適切でない場合には、加工により発生したCu粉が、溶接ワイヤ表面に多量に残留することがある。このCu粉を所定量以下にすることにより、長時間連続で溶接した場合でも、溶接ワイヤの送給性や給電チップとの通電性を良好にすることができる。
油中の硫化物量は、潤滑剤としての効果をさらに高めることで、溶接ワイヤの送給性を向上させる。また、ワイヤ表面を積極的に溶融させることにより、長時間連続での溶接においても、給電チップの損傷を減らし、アーク安定性が維持される。
油中の硫化物量が、ワイヤ1kgあたり0.01g以上では、上記の効果を十分に得ることができる。よって、油中の硫化物量は、ワイヤ1kgあたり0.01g以上とし、好ましくは0.015g以上、より好ましくは0.020g以上とする。
一方、油中の硫化物量が、ワイヤ1kgあたり0.03g以下では、上記の効果が飽和するとともに、かえって溶接ワイヤの送給を阻害するのを抑制できる。よって、油中の硫化物量は、ワイヤ1kgあたり0.03g以下とし、好ましくは0.025g以下、より好ましくは0.020g以下とする。
なお、上記硫化物としては、具体的には、例えば、二硫化モリブデン、硫化亜鉛などである。
銅めっき層の表面に存在する固形物は、銅めっきが脱落、又は製造工程で再付着した銅粉である。また、伸線時の潤滑剤などである。
ワイヤ表面に存在する固形物量の総量が、ワイヤ1kgあたり0.04g以下では、長時間溶接した際に送給系に残留する固形物の量を抑制し、溶接性を向上させることができる。よって、ワイヤ表面に存在する固形物量の総量は0.04g以下とし、好ましくは0.03g以下、より好ましくは0.01g以下とする。
なお、上記固形物としては、具体的には、例えば、銅粉、カルシウムやナトリウム系の石鹸などである。
本実施形態に係るアーク溶接用ソリッドワイヤの芯材となる鋼材の成分組成については、特に制限されないが、例えば、ワイヤ全質量あたり、C:0.02~0.08質量%、Si:0.01~1.00質量%、Mn:0.30~2.20質量%、Ti:0.001~0.30質量%、Cu:0.05~0.30質量%、P:0.025質量%以下(0質量%を含む)、S:0.025質量%以下(0質量%を含む)を含有し、残部がFe及び不可避的不純物からなる。また、Cr、Al、Moの一種以上を0.50質量%以下、N、Oをそれぞれ0.010質量%以下の範囲で含有しても良い。これらの化学組成の範囲は、要求される溶接金属部の機械的性質、溶接時のビード形状、スラグ剥離性などから決定される。
まず、溶製したインゴットを熱間加工で5.5φまで圧延した後、700~800℃の温度域で焼鈍を行った。その後、塩酸による酸洗を実施することで、線材表面の酸化物を化学的に除去し、凹凸を制御した。その後、凹凸を消さない程度の厚さの銅めっきを表面に施した後、冷間伸線でローラーダイス又は穴ダイスにより線径1.2mmまで縮径し、表面に油(種類:鉱物油)を塗布し、溶接ワイヤ(組成:YGW12、YGW18)とした。
本発明例及び比較例のワイヤを用いたガスシールドアーク溶接の溶接条件を表1、2に示す。ロボットを用いた自動溶接で、長さ及び幅がいずれも650mm、厚さが25mmの板状鋼板を水平に配置し、上記方法で製造したガスシールドアーク溶接用ワイヤを使用して、表1又は表2に記載した溶接条件で、平板上に連続で溶接(ビードオンプレート)を行った。
溶接ワイヤの溶接性の評価は、1時間連続溶接後のアーク安定性を評価した。1時間の溶接によりチップ摩耗が進んだ場合、溶接チップにおける給電点がばらつき、アークが不安定となる。1時間連続溶接後、アークが不安定になった場合は「×」(不良)、アークが安定していた場合は「○」(良)、アークが安定し、かつ溶接チップの付け根に堆積物が確認されない場合は「◎」(優良)と判定した。アーク安定性についての評価結果も、表3に併せて示す。
Claims (5)
- 鋼材の表面に銅めっき層が形成されたアーク溶接用ソリッドワイヤであって、
前記鋼材及び前記銅めっき層中のCu量が、ワイヤ全質量あたり0.05~0.30質量%であり、
ワイヤ表面に、ワイヤ1kgあたり0.05~0.20gの油が塗布されており、
前記銅めっき層の表面における、周方向の算術平均粗さRacが0.25~1.00μm、かつ、長手方向の算術平均粗さRalが0.07~0.50μmであることを特徴とするアーク溶接用ソリッドワイヤ。 - 前記ワイヤ表面におけるCu粉の付着量が、ワイヤ1kgあたり0.03g以下である、請求項1に記載のアーク溶接用ソリッドワイヤ。
- 前記油が、植物油、鉱物油、動物油及び合成油から選択される少なくとも一種を含み、かつ、前記油中に、ワイヤ1kgあたり0.01~0.03gの硫化物を有する、請求項1又は2に記載のアーク溶接用ソリッドワイヤ。
- 前記ワイヤ表面に存在する固形物量の総量が、ワイヤ1kgあたり0.04g以下である、請求項1又は2に記載のアーク溶接用ソリッドワイヤ。
- 前記ワイヤ表面に存在する固形物量の総量が、ワイヤ1kgあたり0.04g以下である、請求項3に記載のアーク溶接用ソリッドワイヤ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180021179.7A CN115279543A (zh) | 2020-03-31 | 2021-03-10 | 电弧焊用实芯焊丝 |
MX2022011164A MX2022011164A (es) | 2020-03-31 | 2021-03-10 | Alambre solido para uso de soldadura por arco. |
CA3175450A CA3175450A1 (en) | 2020-03-31 | 2021-03-10 | Solid wire for arc welding use |
US17/906,240 US20230121467A1 (en) | 2020-03-31 | 2021-03-10 | Solid wire for arc welding use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020064919A JP7376411B2 (ja) | 2020-03-31 | 2020-03-31 | アーク溶接用ソリッドワイヤ |
JP2020-064919 | 2020-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021199998A1 true WO2021199998A1 (ja) | 2021-10-07 |
Family
ID=77927246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/009655 WO2021199998A1 (ja) | 2020-03-31 | 2021-03-10 | アーク溶接用ソリッドワイヤ |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230121467A1 (ja) |
JP (1) | JP7376411B2 (ja) |
CN (1) | CN115279543A (ja) |
CA (1) | CA3175450A1 (ja) |
MX (1) | MX2022011164A (ja) |
WO (1) | WO2021199998A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0976089A (ja) * | 1995-09-11 | 1997-03-25 | Nippon Steel Weld Prod & Eng Co Ltd | アーク溶接用鋼ワイヤ |
JP2003170293A (ja) * | 2001-09-28 | 2003-06-17 | Kobe Steel Ltd | めっきなし溶接用ソリッドワイヤ |
JP2003320475A (ja) * | 2002-04-30 | 2003-11-11 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用ワイヤ |
JP2004009089A (ja) * | 2002-06-06 | 2004-01-15 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用ワイヤ |
JP2006095552A (ja) * | 2004-09-28 | 2006-04-13 | Nippon Steel & Sumikin Welding Co Ltd | 炭酸ガスシールドアーク溶接用銅めっきワイヤ |
JP2007290028A (ja) * | 2006-03-31 | 2007-11-08 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用銅めっきワイヤ |
JP2010120083A (ja) * | 2008-10-21 | 2010-06-03 | Kobe Steel Ltd | Mag溶接用ソリッドワイヤ |
WO2011152341A1 (ja) * | 2010-05-31 | 2011-12-08 | 株式会社神戸製鋼所 | 溶接用銅めっきソリッドワイヤ |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000107881A (ja) * | 1998-10-07 | 2000-04-18 | Nippon Steel Weld Prod & Eng Co Ltd | 溶接用ワイヤ |
KR100626416B1 (ko) * | 2004-12-03 | 2006-09-20 | 고려용접봉 주식회사 | 가스 실드 아크 용접용 도금 와이어 |
JP2006315059A (ja) * | 2005-05-13 | 2006-11-24 | Kobe Steel Ltd | 銅めっき付きアーク溶接用ソリッドワイヤ |
KR100668169B1 (ko) * | 2005-05-25 | 2007-01-11 | 고려용접봉 주식회사 | 용접시 아크안정성이 우수한 동도금 마그 용접용솔리드와이어 |
JP2009101376A (ja) * | 2007-10-22 | 2009-05-14 | Kobe Steel Ltd | 銅メッキあり溶接ワイヤ |
JP4887276B2 (ja) * | 2007-12-27 | 2012-02-29 | 株式会社神戸製鋼所 | エレクトロスラグ溶接用ソリッドワイヤ |
JP5480705B2 (ja) * | 2010-04-19 | 2014-04-23 | 株式会社神戸製鋼所 | 炭酸ガスシールドアーク溶接用銅めっきソリッドワイヤ |
JP6788550B2 (ja) * | 2017-06-16 | 2020-11-25 | 株式会社神戸製鋼所 | アーク溶接方法およびソリッドワイヤ |
-
2020
- 2020-03-31 JP JP2020064919A patent/JP7376411B2/ja active Active
-
2021
- 2021-03-10 CN CN202180021179.7A patent/CN115279543A/zh active Pending
- 2021-03-10 US US17/906,240 patent/US20230121467A1/en active Pending
- 2021-03-10 MX MX2022011164A patent/MX2022011164A/es unknown
- 2021-03-10 CA CA3175450A patent/CA3175450A1/en active Pending
- 2021-03-10 WO PCT/JP2021/009655 patent/WO2021199998A1/ja active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0976089A (ja) * | 1995-09-11 | 1997-03-25 | Nippon Steel Weld Prod & Eng Co Ltd | アーク溶接用鋼ワイヤ |
JP2003170293A (ja) * | 2001-09-28 | 2003-06-17 | Kobe Steel Ltd | めっきなし溶接用ソリッドワイヤ |
JP2003320475A (ja) * | 2002-04-30 | 2003-11-11 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用ワイヤ |
JP2004009089A (ja) * | 2002-06-06 | 2004-01-15 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用ワイヤ |
JP2006095552A (ja) * | 2004-09-28 | 2006-04-13 | Nippon Steel & Sumikin Welding Co Ltd | 炭酸ガスシールドアーク溶接用銅めっきワイヤ |
JP2007290028A (ja) * | 2006-03-31 | 2007-11-08 | Nippon Steel & Sumikin Welding Co Ltd | ガスシールドアーク溶接用銅めっきワイヤ |
JP2010120083A (ja) * | 2008-10-21 | 2010-06-03 | Kobe Steel Ltd | Mag溶接用ソリッドワイヤ |
WO2011152341A1 (ja) * | 2010-05-31 | 2011-12-08 | 株式会社神戸製鋼所 | 溶接用銅めっきソリッドワイヤ |
Also Published As
Publication number | Publication date |
---|---|
JP2021159957A (ja) | 2021-10-11 |
US20230121467A1 (en) | 2023-04-20 |
CN115279543A (zh) | 2022-11-01 |
CA3175450A1 (en) | 2021-10-07 |
JP7376411B2 (ja) | 2023-11-08 |
MX2022011164A (es) | 2022-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6788550B2 (ja) | アーク溶接方法およびソリッドワイヤ | |
JP6800770B2 (ja) | 薄鋼板のパルスmag溶接方法 | |
WO2021199998A1 (ja) | アーク溶接用ソリッドワイヤ | |
JP2006315059A (ja) | 銅めっき付きアーク溶接用ソリッドワイヤ | |
CN111730178B (zh) | 一种铝青铜的焊接工艺 | |
JP3951593B2 (ja) | Mag溶接用鋼ワイヤおよびそれを用いたmag溶接方法 | |
JP4020903B2 (ja) | 炭酸ガスシールドアーク溶接用銅めっきワイヤ | |
JP5066375B2 (ja) | パルスmag溶接用銅めっきソリッドワイヤ | |
JP3734030B2 (ja) | ガスシールドアーク溶接用鋼ワイヤ | |
JP7311473B2 (ja) | アーク溶接方法 | |
JP2003225792A (ja) | 炭酸ガスシールドアーク溶接用ワイヤ | |
JP3584894B2 (ja) | ガスシールドアーク溶接用鋼ワイヤ | |
JP3861979B2 (ja) | 炭酸ガスシールドアーク溶接用鋼ワイヤ | |
JP5026002B2 (ja) | ガスシールドアーク溶接用銅めっきワイヤ | |
JPS58128294A (ja) | 溶接用細径鋼ワイヤ | |
JP2007118069A (ja) | ガスシールドアーク溶接方法 | |
JPH09168889A (ja) | ガスシールドアーク溶接用ワイヤ | |
JP2003225794A (ja) | ガスシールドアーク溶接用鋼ワイヤ | |
JP2008043990A (ja) | Ar−CO2混合ガスシールドアーク溶接用銅めっきソリッドワイヤ | |
JP4018097B2 (ja) | 炭酸ガスシールドアーク溶接用めっきなしソリッドワイヤ | |
JP2003039191A (ja) | 溶接用ソリッドワイヤ | |
JP5130476B2 (ja) | スポット溶接用電極 | |
JP4655475B2 (ja) | 炭酸ガスシールドアーク溶接用鋼ワイヤ | |
JP2007054891A (ja) | ガスシールドアーク溶接用無メッキワイヤ | |
JP3983155B2 (ja) | ガスシールドアーク溶接用鋼ワイヤ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21779156 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 3175450 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 3175450 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21779156 Country of ref document: EP Kind code of ref document: A1 |