WO2015083930A1 - 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료 - Google Patents
내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료 Download PDFInfo
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- WO2015083930A1 WO2015083930A1 PCT/KR2014/009293 KR2014009293W WO2015083930A1 WO 2015083930 A1 WO2015083930 A1 WO 2015083930A1 KR 2014009293 W KR2014009293 W KR 2014009293W WO 2015083930 A1 WO2015083930 A1 WO 2015083930A1
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Classifications
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- 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
- B23K35/3073—Fe as the principal constituent with Mn as next major 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
-
- 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
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
- B23K35/3601—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 with inorganic compounds as principal constituents
- B23K35/3607—Silica or silicates
-
- 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
- B23K35/3601—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 with inorganic compounds as principal constituents
- B23K35/361—Alumina or aluminates
-
- 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
- B23K35/362—Selection of compositions of fluxes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Definitions
- the present invention relates to a fluxcored arc welding material having excellent impact resistance and abrasion resistance.
- Oil sand was originally used to mean sand or sandstone containing crude oil, but is now a term used to refer to all rocks including sedimentary rocks containing crude oil existing in the oil layer.
- the petroleum production method for extracting crude oil from the oil sands is a new petroleum production method replacing the crude oil extraction method in the conventional liquid oil field, and is expected to be developed in view of lowering production costs.
- oil sands generally contain high levels of impurities in crude oil. Therefore, the process of removing such impurities in the crude oil acquisition process is essentially included.
- the oil sand In order to extract crude oil from the collected oil sand, the oil sand is transported to a certain distance with a separator, and a separation pipe for separating the transported oil sand into impurities and crude oil is required.
- the pipe serves to float and separate the crude oil and impurities (rock, gravel, sand, etc.) charged into the water while rotating with water.
- Such pipes are not only required to have high strength, but also require impact resistance and abrasion resistance to withstand the impact of rocks and gravel, and have toughness to withstand external temperatures at -29 ° C.
- pipes commonly used to collect oil sands include API X65 and X70, and in order to connect the pipes to each other in the field, a welding material capable of electric field welding is required.
- the present invention is not only excellent weldability, but also to provide a welding material capable of providing a welded joint having excellent low temperature impact toughness and wear resistance.
- One embodiment of the present invention is by weight, C: 0.1-0.75%, Si: 0.2-1.2%, Mn: 15-27%, Cr: 2-7%, S: 0.01% or less, P: 0.018% or less , TiO 2 : 4.3 ⁇ 15%, SiO 2 , ZrO 2 and Al 2 O 3 At least one selected from the group consisting of: 0.01 to 9%, residual impact Fe and other inevitable impurities containing fluxcore excellent flux score Provides arc welding materials.
- a welding joint having excellent weldability, low temperature impact toughness and wear resistance while being capable of electron fine welding, thereby providing a welding material which can be very preferably applied to the manufacture of pipes used in the oil sand industry. can do.
- the present inventors provide the welding material which can provide the welding joint which has the outstanding low-temperature impact toughness and abrasion resistance so that it can apply suitably at the time of welding of the high manganese pipe for oil sand separation used in the process of acquiring crude oil through oil sand.
- the present invention was completed by recognizing that not only the weldability but also the above characteristics can be secured by appropriately controlling the alloy composition, and that the type of welding material preferable for the electric field welding is a fluxcored arc welding material.
- the fluxcored arc welding material of the present invention having the alloy composition described as follows includes both the metal strip which is the outer part of the welding wire and the flux filled therein.
- Carbon (C) is the most powerful element existing as an austenite stabilizing element capable of securing the strength of the weld metal and securing the cryogenic impact toughness of the weld metal, and is an essential element in the present invention.
- austenite is not formed and thus there is a problem that the toughness is lowered.
- carbon dioxide gas may be generated during welding, which may cause defects in the weld joint, and carbides of MC, M 23 C 6, etc. may be combined with alloying elements such as Mn and Cr.
- the content of C preferably has a range of 0.1 to 0.75% by weight.
- Silicon (Si) is an element added for the deoxidation effect in the weld metal.
- the content is less than 0.2% by weight, the deoxidation effect is insufficient and the fluidity of the weld metal may be reduced.
- the content of Si exceeds 1.2% by weight, it causes segregation in the weld metal, thereby deteriorating low-temperature impact toughness and adversely affecting weld cracking sensitivity. Therefore, the content of Si preferably has a range of 0.2 to 1.2% by weight.
- Manganese (Mn) is a main element that stably improves the work hardening and stably generates austenite even at low temperatures, and is an essential component of the welding material of the present invention. In addition, it acts as a carbide generating element together with C, and acts as an austenite stabilizing element similarly to nickel. If the Mn content is less than 15% by weight, sufficient austenite is not produced, resulting in a problem of low temperature impact toughness, and when the Mn content exceeds 27% by weight, a large amount of fume is generated during welding. In addition, when plastic deformation, slip phenomenon occurs rather than tweep phenomenon, and wear resistance is deteriorated. Therefore, the content of Mn is preferably in the range of 15 to 27% by weight.
- Chromium (Cr) is a ferrite stabilizing element, by adding Cr has the advantage of lowering the content of the austenite stabilizing element.
- Cr serves as a key component in the formation of carbides, such as MC, M 23 C 6 . That is, when a predetermined amount of Cr is added, a higher level of precipitation hardening can be obtained, and at the same time, the content of austenite stabilizing element may be lowered. Therefore, it is preferable to add a predetermined amount of Cr.
- Cr is a strong anti-oxidation element and has the advantage of increasing the degree of oxidation corresponding to the external oxidation atmosphere. When the Cr content is less than 2% by weight, carbide formation of MC, M 23 C 6, etc.
- the content of Cr is preferably limited to 2 to 7% by weight or less.
- Sulfur (S) is preferably an element as low as possible because it is an impurity element that promotes high temperature cracks when welding together with phosphorus.
- the content of S is preferably controlled to 0.01% by weight or less.
- Phosphorus (P) is preferably an element as low as possible because it is an impurity element that promotes high temperature cracking during welding. Therefore, in order to prevent cracking at high temperature, it is preferable to control the upper limit to 0.018% or less.
- Titanium dioxide serves as a slag forming agent to solidify before the liquid weld metal is solidified to enable electron fine welding, thereby preventing the liquid weld metal from flowing down.
- the TiO 2 is preferably added at 4.3% by weight or more.
- the content of TiO 2 preferably has a range of 4.3 to 15% by weight.
- the content of at least one of SiO 2 , ZrO 2 and Al 2 O 3 is less than 0.01% by weight, the slag coating and peelability and arc stability are poor, resulting in poor electric field welding workability and weld bead formation, and 9% by weight.
- the amount of molten slag is rapidly increased and the viscosity of the slag is also increased, resulting in poor electric field weldability and bead shape.
- the transfer of Si, Al, etc. to the weld metal increases, and the impact toughness is lowered. Therefore, the content of one or more of SiO 2 , ZrO 2 and Al 2 O 3 preferably has a range of 0.01 to 9% by weight.
- the fluxcored arc welding material proposed by the present invention may include the remaining Fe and other impurities inevitably contained in the manufacturing process, in addition to the alloy composition described above, and the weldability basically required in the welding material by satisfying the alloy composition described above. Not only can secure the but also can provide a welded joint having excellent impact resistance and wear resistance. In addition, since the electron fine welding is possible, it is possible to easily implement pipe welding in the industrial field. On the other hand, the welding material of the present invention can secure further excellent physical properties by additionally including the alloying elements described below in addition to the above-described component system.
- N Nitrogen
- the nitride when the nitride is combined with other alloying components, the effect of improving the wear resistance can be obtained. The above effect can be obtained even when a small amount is added.
- the content of N preferably has a range of 0.5% by weight or less.
- Nickel (Ni) is an advantageous component for improving toughness at low temperatures by forming austenite by solid solution strengthening.
- the addition of Ni promotes the formation of austenite, thereby increasing the toughness of the welded joint, and has the advantage of suppressing brittle fracture of the welded joint having a high degree of curing.
- the toughness is greatly improved, but the wear resistance is drastically lowered by increasing the stacking defect energy.
- the content of Ni preferably has a range of 10% by weight or less.
- V 5 wt% or less
- Vanadium (V) is a component that is dissolved in steel and retards phase transformation rates of ferrite and bainite to facilitate martensite formation. In addition, it acts as a major element causing solid solution strengthening effect and precipitation strengthening. However, when the content is excessive, the effect is saturated, toughness and weldability may be deteriorated, and as the cause of increasing the manufacturing cost of steel, the content of V is preferably in the range of 5% by weight or less. Do.
- Niobium (Nb) is a component that can improve the strength of the welded joint through the precipitation strengthening effect. However, if the content is excessive, coarse precipitates are produced, and thus, rather, may reduce wear resistance, which may increase the manufacturing cost of steel, so the Nb content is preferably in the range of 5% by weight or less.
- Molybdenum (Mo) is a component that can improve the strength of the welded joint through known solid solution strengthening.
- vanadium (V) acts as a major element causing precipitation hardening.
- Mo content is preferably in the range of 7% or less.
- Tungsten is a component that can improve the strength of the welded joint through known solid solution strengthening.
- the niobium (Nb), vanadium (V), molybdenum (Mo) similarly acts as a major element causing precipitation hardening.
- W content preferably has a range of 6% or less.
- Alkali metals such as K, Na, and Li lower the ionization potential of the arc during welding, thereby facilitating generation of the arc, and maintaining a stable arc during welding.
- the K, Na and Li is preferably added at least 0.01% by weight.
- the content exceeds 1.7% by weight, excessive welding fume may occur due to the high vapor pressure.
- At least one of F and Ca 0.01 to 1.5% by weight
- the fluorine (F) and potassium (Ca) react with hydrogen in a high temperature arc during welding to cause a dehydrogenation reaction, the fluorine (F) and potassium (Ca) effectively reduce the diffusive hydrogen, thereby further improving the effect of the present invention.
- the F and Ca are preferably contained in 0.01% by weight or more in the welding wire.
- the content of one or more of the F and Ca preferably has a range of 0.01 to 1.5% by weight.
- the welding material of the present invention provided as described above can secure electron welding and excellent low-temperature impact toughness of 27J or more at -29 ° C.
- Comparative Examples 1 to 13 that do not satisfy the alloy composition proposed in the present invention it can be seen that the low temperature impact toughness or wear resistance is lower than the examples of the present invention, in particular in the case of Comparative Examples 7 to 9 Poor or crack occurs in the welded joints or it can be confirmed that the slag is difficult to peel off.
- Comparative Examples 10 to 13 welding itself was difficult due to unstable arc generation or excessive spatter generation, and thus, low-temperature impact toughness and wear resistance evaluation could not be performed.
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- Mechanical Engineering (AREA)
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- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Description
구분 | 합금조성(중량%) | |||||||
C | Mn | Si | Cr | S | P | TiO2 | SiO2+ZrO2+Al2O3 | |
발명예1 | 0.25 | 23 | 0.5 | 3 | 0.01 | 0.01 | 6.8 | 0.01 |
발명예2 | 0.7 | 23 | 0.75 | 3 | 0.003 | 0.05 | 4.8 | 2 |
발명예3 | 0.1 | 15 | 0.2 | 3 | 0.01 | 0.012 | 15 | 6 |
발명예4 | 0.2 | 23 | 0.4 | 3 | 0.01 | 0.016 | 8.9 | 0.2 |
발명예5 | 0.1 | 25 | 0.5 | 3 | 0.01 | 0.012 | 12 | 8 |
발명예6 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 5.8 | 0.5 |
발명예7 | 0.3 | 25 | 0.2 | 3 | 0.01 | 0.012 | 5.8 | 0.5 |
발명예8 | 0.3 | 25 | 0.3 | 3 | 0.01 | 0.012 | 4.5 | 0.5 |
발명예9 | 0.3 | 23 | 0.4 | 3 | 0.01 | 0.01 | 6.3 | 1 |
발명예10 | 0.3 | 24 | 0.5 | 2 | 0.01 | 0.012 | 6.5 | 0.5 |
발명예11 | 0.3 | 22 | 0.2 | 7 | 0.01 | 0.01 | 4.5 | 0.5 |
비교예1 | 0.1 | 15 | 0.2 | 3 | 0.01 | 0.02 | 13 | 4 |
비교예2 | 0.1 | 23 | 0.4 | 3 | 0.01 | 0.01 | 16 | 6 |
비교예3 | 0.3 | 23 | 0.4 | 3 | 0.01 | 0.01 | 4.5 | 0.5 |
비교예4 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.01 | 4.5 | 0.5 |
비교예5 | 0.3 | 23 | 0.4 | 3 | 0.005 | 0.012 | 4.3 | 0.5 |
비교예6 | 0.3 | 25 | 0.5 | 3 | 0.005 | 0.012 | 6.5 | 0.5 |
비교예7 | 0.02 | 25 | 0.6 | 3 | 0.01 | 0.012 | 4.1 | 0.2 |
비교예8 | 1.2 | 22 | 1.5 | 3 | 0.015 | 0.025 | 4 | 0.2 |
비교예9 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 17 | 1 |
비교예10 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 8.9 | 10 |
비교예11 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 2 | 1 |
비교예12 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 7 | 1 |
비교예13 | 0.3 | 25 | 0.4 | 3 | 0.01 | 0.012 | 7 | 1 |
구분 | 합금조성(중량%) | 물성 | |||||||||
N | Ni | V | Nb | Mo | W | K+Na+Li | F+Ca | 용접성 | 충격인성(@-29℃) | 마모량(g) | |
발명예1 | - | - | - | - | - | - | 0.3 | 0.2 | 양호 | 29 | 1.34 |
발명예2 | - | - | - | - | - | - | 0.01 | 0.01 | 양호 | 79 | 1.01 |
발명예3 | - | 10 | - | - | - | - | 1 | 1.2 | 양호 | 85 | 1.78 |
발명예4 | 0.1 | - | - | - | - | - | 0.5 | 0.3 | 양호 | 32 | 1.23 |
발명예5 | 0.25 | - | - | - | - | - | 1.5 | 0.5 | 양호 | 43 | 1.32 |
발명예6 | - | - | 4 | - | - | - | 0.2 | 0.2 | 양호 | 35 | 1.19 |
발명예7 | - | - | - | 4 | - | - | 0.2 | 0.2 | 양호 | 34 | 1.12 |
발명예8 | - | - | - | - | 7 | - | 0.1 | 0.1 | 양호 | 27 | 1.02 |
발명예9 | - | - | - | - | - | 4.5 | 0.3 | 0.3 | 양호 | 42 | 1.42 |
발명예10 | - | - | - | - | - | - | 0.2 | 0.3 | 양호 | 29 | 1.35 |
발명예11 | 0.01 | - | - | - | - | - | 0.1 | 0.1 | 양호 | 35 | 0.92 |
비교예1 | - | 15 | - | - | - | - | 1 | 0.6 | 양호 | 89 | 2.09 |
비교예2 | - | - | - | - | - | - | 0.7 | 0.9 | 양호 | 18 | 0.82 |
비교예3 | - | - | 6 | - | - | - | 0.1 | 0.1 | 양호 | 25 | 1.04 |
비교예4 | - | - | - | 6 | - | - | 0.1 | 0.1 | 양호 | 21 | 1.01 |
비교예5 | - | - | - | - | 8 | - | 0.1 | 0.1 | 양호 | 19 | 0.92 |
비교예6 | - | - | - | - | - | 7 | 0.2 | 0.3 | 양호 | 26 | 1.52 |
비교예7 | 0.5 | - | - | - | - | - | 0.1 | 0.1 | 불량(기공) | - | - |
비교예8 | - | - | - | - | - | - | 0.1 | 0.1 | 불량(크랙) | - | - |
비교예9 | - | - | - | - | - | - | 0.1 | 0.1 | 불량(박리) | - | - |
비교예10 | - | - | - | - | - | - | 0.1 | 0.1 | 용접 불가 | - | - |
비교예11 | - | - | - | - | - | - | 0.1 | 0.1 | 용접 불가 | - | - |
비교예12 | - | - | - | - | - | - | 0.1 | 1.7 | 용접 불가 | - | - |
비교예13 | - | - | - | - | - | - | 1.5 | 0.1 | 용접 불가 | - | - |
Claims (6)
- 중량%로, C: 0.1~0.75%, Si: 0.2~1.2%, Mn: 15~27%, Cr: 2~7%, S: 0.01%이하, P: 0.018%이하, TiO2: 4.3~15%, SiO2, ZrO2 및 Al2O3로 이루어지는 그룹으로부터 선택된 1종 이상: 0.01~9%, 잔부 Fe 및 기타 불가피한 불순물을 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
- 청구항 1에 있어서,상기 용접재료는 N: 0.5%이하를 추가로 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
- 청구항 1에 있어서,상기 용접재료는 Ni: 10%이하를 추가로 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
- 청구항 1에 있어서,상기 용접재료는 V: 5%이하, Nb: 5%이하, Mo: 7%이하 및 W: 6%이하를 추가로 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
- 청구항 1에 있어서,상기 용접재료는 K, Na 및 Li으로 이루어지는 그룹으로부터 선택된 1종 이상: 0.01~1.7%를 추가로 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
- 청구항 1에 있어서,상기 용접재료는 F 및 Ca 중 1종 이상: 0.01~1.5%를 추가로 포함하는 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2929524A CA2929524C (en) | 2013-12-06 | 2014-10-02 | Flux-cored arc welding material having remarkable impact resistance and abrasion resistance |
CN201480066680.5A CN105792981B (zh) | 2013-12-06 | 2014-10-02 | 耐冲击性及耐磨性优异的药芯焊丝电弧焊接材料 |
US15/034,326 US10279436B2 (en) | 2013-12-06 | 2014-10-02 | Flux-cored arc welding material having remarkable impact resistance and abrasion resistance |
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KR1020130151808A KR20150066369A (ko) | 2013-12-06 | 2013-12-06 | 내충격성 및 내마모성이 우수한 플럭스코어드 아크 용접재료 |
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KR (1) | KR20150066369A (ko) |
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US10252378B2 (en) * | 2015-12-10 | 2019-04-09 | Caterpillar Inc. | Hybrid laser cladding composition and component therefrom |
AU2017259782A1 (en) | 2016-05-02 | 2018-10-25 | Exxonmobil Research And Engineering Company | Field dissimilar metal welding technology for enhanced wear resistant high manganese steel |
JP2019520473A (ja) * | 2016-05-02 | 2019-07-18 | エクソンモービル リサーチ アンド エンジニアリング カンパニーExxon Research And Engineering Company | 高マンガン鋼スラリーパイプラインのための現場での円周溶接技術 |
KR102244428B1 (ko) * | 2016-11-08 | 2021-04-26 | 닛폰세이테츠 가부시키가이샤 | 플럭스 코어드 와이어, 용접 조인트의 제조 방법, 및 용접 조인트 |
US11426824B2 (en) | 2017-09-29 | 2022-08-30 | Lincoln Global, Inc. | Aluminum-containing welding electrode |
US11529697B2 (en) * | 2017-09-29 | 2022-12-20 | Lincoln Global, Inc. | Additive manufacturing using aluminum-containing wire |
JP2019171457A (ja) * | 2018-03-29 | 2019-10-10 | 株式会社神戸製鋼所 | 高速溶接用フラックス入りワイヤ及び高速アーク溶接方法 |
CN109623202B (zh) * | 2019-01-30 | 2020-12-18 | 南京钢铁股份有限公司 | 一种用于高锰低温钢气体保护焊的实芯焊丝 |
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JP4265604B2 (ja) * | 2003-06-10 | 2009-05-20 | 住友金属工業株式会社 | オーステナイト系鋼溶接継手 |
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US20160279742A1 (en) | 2016-09-29 |
CN105792981B (zh) | 2019-05-28 |
CN105792981A (zh) | 2016-07-20 |
US10279436B2 (en) | 2019-05-07 |
KR20150066369A (ko) | 2015-06-16 |
CA2929524A1 (en) | 2015-06-11 |
CA2929524C (en) | 2017-07-18 |
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