CN104139250A - High-strength high-tenacity electro-gas welding agent core welding wire and preparation method - Google Patents
High-strength high-tenacity electro-gas welding agent core welding wire and preparation method Download PDFInfo
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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
- B23K35/02—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
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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
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
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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
- B23K35/36—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
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
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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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
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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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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Abstract
The invention provides a high-strength high-tenacity electro-gas welding agent core welding wire and a preparation method. The strength of the welding wire is in 600 MPa class. An SPCC-SD cold-rolled low-carbon steel strip is used as a welding wire raw material, a welding wire core is composed of fluoride, carbonate, oxide, ferroalloy and metal powder. The preparation method comprises the steps of baking, powder blending, strip cutting, filling forming, drawing, layering winding, packaging and the like. The 600MPa-class high-strength high-tenacity electro-gas welding agent core welding wire has the advantages that the welding process is good, electric arcs are stable, splashing is small, slag is easy to remove, formation of weld is attractive, and the minus 40 DEG C impact property is excellent. The 600MPa-class high-strength high-tenacity electro-gas welding agent core welding wire is mainly used for welding longitudinal joints of a 100000-stere oil storage tank.
Description
Technical field
The invention belongs to welding material technology of preparing, especially relate to a kind of grade high-strength high-tenacity electro-gas (enclosed) welding flux-cored wire and preparation method, its intensity is 600MPa level.
Background technology
At present, China's economy is in the high speed development stage, the demand rapid development to the energy, and country increases input for the construction of oil reserve, and China's oil storage tank forward maximizes, clustering future development.The building technology of 100000 cubes of petroleum storage tanks also improves thereupon, automatic welding technique replaces manual welding gradually, be widely used in petroleum storage tank welding, especially the successful Application of electro-gas (enclosed) welding technology in 100,000 cubes of petroleum storage tanks are built, greatly improve welding quality and welding efficiency, and reduced welder's labour intensity.
At present, the material of main part that 100,000 cubes of petroleum storage tanks of China are used is mainly the high-strength hardened and tempered steel plate SPV490Q of Japanese import, supporting electro-gas (enclosed) welding welding material is Japanese import equally with it, and the electro-gas (enclosed) welding welding wire trade mark that wherein has Nippon Steel Corp to produce is that the electro-gas (enclosed) welding welding wire trade mark that EG-60 or company of Kobe Steel produce is DW-S1LG.Japan welding material procurement cycle is long, purchase cost is high, and Chinese large-sized petroleum storage tank construction cost is improved.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire and preparation method, and this welding wire intensity reaches 600MPa level, and supporting steel plate SPV490Q is used, and meets the construction demand of 100,000 cubes of petroleum storage tanks.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire, welding wire medicine core is prepared from by the raw material of following parts by weight: fluoride 30-60 Fen ﹑ carbonate 10-30 part, silica 0-10 part, titanium dioxide 0-10 part, potassium oxide 0-10 part, sodium oxide molybdena 0-10 part, magnesia 0-10 part, calcium oxide 0-10 part, silicomangan 40-80 part, electrolytic manganese 10-40 part, ferrosilicon 10-40 part, almag 5-10 part, magnesium powder 5-10 part, molybdenum-iron 10-20 part, nickel powder 50-100 part, ferrotianium 10-40, ferro-boron 1-5 part, iron powder 600-750 part.
Preferably, described fluoride is one or more mixtures in calcirm-fluoride, sodium fluoride and barium fluoride.
Preferably, described carbonate is one or more mixtures in calcium carbonate, magnesium carbonate, brium carbonate.
Preferably, the model of described silicomangan is FeMn64Si23 or FeMn62Si23; The model of described ferrosilicon is FeSi75; The magnalium ratio of described almag is 1:1; The model of described molybdenum-iron is FeMo60; The model of described ferrotianium is FeTi30 or FeTi40; The model of described ferro-boron is FeB22 or FeB23.。
Preferably, the percentage by weight that these several material total amounts of fluoride, carbonate, silica, titanium dioxide, potassium oxide, sodium oxide molybdena, magnesia and calcium oxide account for medicinal powder total amount is 5%～15%.
The welding direction of electro-gas (enclosed) welding welding procedure is vertically upward, and electric arc can act on top, molten bath all the time, and the slag amount in molten bath is extremely important, and the welding slag that should keep welding wire to generate slag amount and face of weld formation keeps balance.It is too much that welding wire generates welding slag, can make weld pool surface welding slag cumulative, affects arc stability, and the defect such as lack of fusion, slag inclusion; It is very few that welding wire generates welding slag, can make face of weld welding slag cover incomplete, affects appearance of weld.Therefore, in electro-gas (enclosed) welding flux-cored wire, the concrete material selection of slag former and the total amount of slag former all have a great impact for welding procedure and welding performance, keep the balance of slag growing amount and discharge rate extremely important.
Preferably, take SPCC-SD cold-rolled low carbon steel steel band as welding stick original material material.
Formulation analysis in the present invention: high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire provided by the invention, intensity is 600MPa level, is mainly used in the welding of 100,000 cubes of petroleum storage tank longitudinal joints.It is ordinary carbon steel steel band SPCC-SD that this welding wire is used steel band.Add the effect of various medicinal powder as follows:
Fluoride is main slag former, and high-strength steel welding wire must add alloying element to improve intensity, and more alloying element can improve viscosity coefficient of dross, and fluoride can play shoddye effect, is conducive to welding slag and gets rid of, and covers face of weld.
Carbonate is slag former, and Main Function improves viscosity coefficient of dross, decomposes the CO generating
2play the effect in protection molten bath.
Oxide is slag former, and Main Function improves viscosity coefficient of dross, and stable arc is optimized appearance of weld, improves weld seam deslag performance.
Silicomangan, ferrosilicon and electrolytic manganese, to deposited metal transition alloy elements, improve metal strength as main alloying constituent, and as deoxidier, play the molten bath effect that purifies.
Almag, magnesium powder are deoxidier, play and purify molten bath effect, and protected effective alloying element to molten bath transition.
Molybdenum-iron, nickel powder, ferrotianium, ferro-boron acting in conjunction mainly play crystal grain thinning and improve low temperature impact properties.
The present invention also provides a kind of method of preparing high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire as above, comprises and is prepared as follows step:
(1), baking: fluoride, carbonate, silica, titanium dioxide, potassium oxide, sodium oxide molybdena, magnesia, calcium oxide are first toasted before powder is joined in mixing in high-temperature baking equipment;
(2), join powder: the medicine core powder of handling well in above-mentioned steps (1) and other powder are mixed in mixed powder equipment;
(3), cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4), filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 22-26%;
(5) drawing, layer around, packing.
Preferably, in step (1), baking temperature is 380～420 ℃.
Preferably, in step (2), incorporation time is 2～3 hours.
Advantage and good effect that the invention has are: the high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire that adopts formula of the present invention and preparation method to obtain, adopts CO
2as protective gas, welding procedure is good, arc stability, little, easy attractive in appearance ,-40 ℃ of low temperature impact properties excellences of de-slag, appearance of weld of splashing, and can meet the welding of 100,000 cubes of petroleum storage tank longitudinal joints.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail.
Embodiment mono-
A preparation method for high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire, intensity is 600MPa level, comprises following processing step:
(1) baking: first 8 parts of the calcirm-fluoride taking 20 10 parts of Fen ﹑ sodium fluorides, 5 parts of barium fluorides, 10 parts, calcium carbonate, 7 parts, magnesium carbonate, 4 parts of brium carbonates, 8 parts of silica, 5 parts of potassium oxides, 4 parts of titanium dioxide, 2 parts of sodium oxide molybdenas, 2 parts, magnesia, calcium oxide are toasted in high-temperature baking equipment, baking temperature is 420 ℃;
(2) join powder: take 50 parts of silicomangans, its model is FeMn64Si23,20 parts of electrolytic manganeses, 30 parts of ferrosilicon, its model is 5 parts of FeSi75, almags, its magnalium ratio is 1:1,5 parts, magnesium powder, 20 parts of molybdenum-irons, and its model is FeMo60,60 parts of nickel powders, 30 parts of ferrotianiums, and its model is 4 parts of FeTi30, ferro-borons, its model is FeB22,676 parts of iron powders mix the above-mentioned medicine core powder preparing in mixed powder equipment, and incorporation time is 2 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 22%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.06%, manganese 1.75%, silicon 0.32%, nickel 0.98%, molybdenum 0.19%, titanium 0.05%, boron 0.0035% surplus are iron.Tensile strength is 672MPa, percentage elongation 23%, and-40 ℃ of impact properties are average 126J.
Embodiment bis-:
High-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire and a preparation method, intensity is 600MPa level, comprises following step:
(1) baking: first 3 parts of the calcirm-fluoride taking 10 30 parts of Fen ﹑ sodium fluorides, 5 parts of barium fluorides, 5 parts, calcium carbonate, 10 parts, magnesium carbonate, 5 parts of brium carbonates, 3 parts of silica, 2 parts of titanium dioxide, 10 parts of potassium oxides, 7 parts of sodium oxide molybdenas, magnesia are toasted in high-temperature baking equipment, baking temperature is 380 ℃;
(2) join powder: take 80 parts of silicomangans, its model is FeMn62Si23,10 parts of electrolytic manganeses, 10 parts of ferrosilicon, its model is 15 parts of FeSi75, almags, its magnalium ratio is 1:1,10 parts, magnesium powder, 10 parts of molybdenum-irons, its model is FeMo60,50 parts of nickel powders, 10 parts of ferrotianiums, and its model is 1 part of FeTi40, ferro-boron, and its model is 724 parts of FeB23, iron powders, the above-mentioned medicine core powder preparing is mixed in mixed powder equipment, and incorporation time is 3 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 22%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.09%, manganese 1.58%, silicon 0.22%, nickel 0.85%, molybdenum 0.11%, titanium 0.02%, boron 0.0008% surplus are iron.Tensile strength is 645MPa, percentage elongation 25%, and-40 ℃ of impact properties are average 147J.
Embodiment tri-:
High-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire and a preparation method, intensity is 600MPa level, comprises following processing step:
(1) baking: first 2 parts of the calcirm-fluoride taking 30 10 parts of Fen ﹑ sodium fluorides, 10 parts, calcium carbonate, 5 parts, magnesium carbonate, 5 parts of silica, 3 parts of sodium oxide molybdenas, magnesia 5, calcium oxide are toasted in high-temperature baking equipment, baking temperature is 400 ℃;
(2) join powder: take 60 parts of silicomangans, its model is FeMn64Si23,30 parts of electrolytic manganeses, 15 parts of ferrosilicon, its model is 7 parts of FeSi75, almags, its magnalium ratio is 1:1,8 parts, magnesium powder, 15 parts of molybdenum-irons, and its model is FeMo60,80 parts of nickel powders, 25 parts of ferrotianiums, and its model is 3 parts of FeTi30, ferro-borons, its model is FeB22,687 parts of iron powders mix the above-mentioned medicine core powder preparing in mixed powder equipment, and incorporation time is 2.5 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 24%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.08%, manganese 1.63%, silicon 0.25%, nickel 1.30%, molybdenum 0.15%, titanium 0.04%, boron 0.0023% surplus are iron.Tensile strength is 658MPa, percentage elongation 25%, and-40 ℃ of impact properties are average 143J.
Embodiment tetra-
High-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire and a preparation method, intensity is 600MPa level, comprises following processing step:
(1) baking: first 10 parts of the calcirm-fluoride taking 40 15 parts of Fen ﹑ sodium fluorides, 5 parts of barium fluorides, 5 parts, calcium carbonate, 10 parts, magnesium carbonate, 0 part of silica 1,10 parts of titanium dioxide, 5 parts of potassium oxides, 10 parts of sodium oxide molybdenas, magnesia are toasted in high-temperature baking equipment, baking temperature is 380 ℃;
(2) join powder: take 40 parts of silicomangans, its model is FeMn62Si23,40 parts of electrolytic manganeses, 30 parts of ferrosilicon, its model is 10 parts of FeSi75, almags, its magnalium ratio is 1:1,5 parts, magnesium powder, 10 parts of molybdenum-irons, its model is FeMo60,100 parts of nickel powders, 40 parts of ferrotianiums, and its model is 2 parts of FeTi40, ferro-borons, and its model is 603 parts of FeB23, iron powders, the above-mentioned medicine core powder preparing is mixed in mixed powder equipment, and incorporation time is 3 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 24%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.05%, manganese 1.61%, silicon 0.23%, nickel 1.63%, molybdenum 0.09%, titanium 0.06%, boron 0.0019% surplus are iron.Tensile strength is 667MPa, percentage elongation 26%, and-40 ℃ of impact properties are average 156J.
Embodiment five
High-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire and a preparation method, intensity is 600MPa level, comprises following processing step:
(1) baking: first the calcirm-fluoride taking 20 30 parts of Fen ﹑ sodium fluorides, 20 parts, calcium carbonate, 5 parts, magnesium carbonate, 5 parts of brium carbonates, 2 parts of silica, 3 parts of potassium oxides, 5 parts of sodium oxide molybdenas, calcium oxide 10 are toasted in high-temperature baking equipment, baking temperature is 420 ℃;
(2) join powder: take 70 parts of silicomangans, its model is FeMn64Si23,20 parts of electrolytic manganeses, 10 parts of ferrosilicon, its model is 5 parts of FeSi75, almags, its magnalium ratio is 1:1,10 parts, magnesium powder, 20 parts of molybdenum-irons, and its model is FeMo60,90 parts of nickel powders, 20 parts of ferrotianiums, and its model is 5 parts of FeTi30, ferro-borons, its model is FeB22,650 parts of iron powders mix the above-mentioned medicine core powder preparing in mixed powder equipment, and incorporation time is 2 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 26%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.09%, manganese 1.66%, silicon 0.27%, nickel 1.48%, molybdenum 0.22%, titanium 0.03%, boron 0.0042% surplus are iron.Tensile strength is 673MPa, percentage elongation 24%, and-40 ℃ of impact properties are average 151J.
Comparative example one
Electro-gas (enclosed) welding flux-cored wire and a preparation method, comprise following processing step:
(1) baking: first the calcirm-fluoride taking 50 20 parts of Fen ﹑ sodium fluorides, 10 parts of barium fluorides, 20 parts, calcium carbonate, 10 parts, magnesium carbonate, 10 parts of brium carbonates, 5 parts of silica 1s, 5 parts of titanium dioxide, 5 parts of potassium oxides, 10 parts of sodium oxide molybdenas, 15 parts, magnesia, calcium oxide 10 are toasted in high-temperature baking equipment, baking temperature is 400 ℃;
(2) join powder: take 50 parts of silicomangans, its model is FeMn64Si23,30 parts of electrolytic manganeses, 20 parts of ferrosilicon, its model is 5 parts of FeSi75, almags, its magnalium ratio is 1:1,10 parts, magnesium powder, 10 parts of molybdenum-irons, and its model is FeMo60,60 parts of nickel powders, 20 parts of ferrotianiums, and its model is 2 parts of FeTi30, ferro-borons, its model is FeB23,613 parts of iron powders mix the above-mentioned medicine core powder preparing in mixed powder equipment, and incorporation time is 2.5 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 24%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.07%, manganese 1.55%, silicon 0.29%, nickel 1.01%, molybdenum 0.11%, titanium 0.03%, boron 0.0018% surplus are iron.Tensile strength is 647MPa, percentage elongation 18%, and-40 ℃ of impact properties are average 65J.
Comparative example two
Electro-gas (enclosed) welding flux-cored wire and a preparation method, comprise following processing step:
(1) baking: first 5 parts, the calcirm-fluoride taking 20 5 parts, Fen ﹑ calcium carbonate, 5 parts of silica, 5 parts of sodium oxide molybdenas, magnesia are toasted in high-temperature baking equipment, baking temperature is 380 ℃;
(2) join powder: take 100 parts of silicomangans, its model is FeMn64Si23,40 parts of electrolytic manganeses, 20 parts of ferrosilicon, its model is 10 parts of FeSi75, almags, the ratio of its magnalium is 1:1,10 parts, magnesium powder, 20 parts of molybdenum-irons, and its model is FeMo60,60 parts of nickel powders, 20 parts of ferrotianiums, and its model is 5 parts of FeTi40, ferro-borons, its model is FeB22,675 parts of iron powders mix the above-mentioned medicine core powder preparing in mixed powder equipment, and incorporation time is 3 hours;
(3) cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4) filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 22%;
(5) drawing, layer around, packing.
Adopt the SPV490Q steel plate of long 500mm, wide 200mm, thick 20mm, bevel angle 35 degree, root gap 5mm, the back side adopts electro-gas (enclosed) welding dedicated ceramic liner, carry out deposited metal test piece welding, welding wire deposited metal composition detects, and its percentage by weight is that carbon 0.12%, manganese 2.42%, silicon 0.38%, nickel 1.05%, molybdenum 0.23%, titanium 0.04%, boron 0.0038% surplus are iron.Tensile strength is 762MPa, percentage elongation 15%, and-40 ℃ of impact properties are average 28J.
Comparative example 1～2 contrasts with constituent content and the mechanical property of embodiment 1～5:
Experimental analysis:
Comparative example 1 slag former total amount accounts for 18% of medicinal powder gross weight, because slag former is too much, along with the carrying out of welding, slag in molten bath is cumulative, cause electric arc unstable, in deposited metal, occurred field trash, had a strong impact on percentage elongation and the impact flexibility of deposited metal.
Comparative example 2 slag former total amounts account for 4% of medicinal powder gross weight, and because slag former is very few, the situation that large area does not have welding slag to cover appears in face of weld, affects appearance of weld.
Therefore slag former preferable range is that medicinal powder gross weight is 7%～12%.
Comparative example 2 alloying element amounts add too much, cause tensile strength too high, have exceeded the strength range of 600MPa grade steel plate, and the percentage elongation of deposited metal and impact flexibility are made a big impact.
Experimental result: the mechanical performance index of the welding wire in embodiments of the invention 1～5 is all better than comparative example 1～2.
Above the embodiment of the invention is had been described in detail, but described content is only the preferred embodiment of the invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the invention scope and improvement etc., within all should still belonging to this patent covering scope.
Claims (9)
1. a high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire, is characterized in that: welding wire medicine core is prepared from by the raw material of following parts by weight: fluoride 30-60 part ﹑ carbonate 10-30 part, silica 0-10 part, titanium dioxide 0-10 part, potassium oxide 0-10 part, sodium oxide molybdena 0-10 part, magnesia 0-10 part, calcium oxide 0-10 part, silicomangan 40-80 part, electrolytic manganese 10-40 part, ferrosilicon 10-40 part, almag 5-10 part, magnesium powder 5-10 part, molybdenum-iron 10-20 part, nickel powder 50-100 part, ferrotianium 10-40, ferro-boron 1-5 part, iron powder 600-750 part.
2. high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 1, is characterized in that: described fluoride is one or more mixtures in calcirm-fluoride, sodium fluoride and barium fluoride.
3. high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 1 and 2, is characterized in that: described carbonate is one or more mixtures in calcium carbonate, magnesium carbonate, brium carbonate.
4. high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 3, is characterized in that: the model of described silicomangan is FeMn64Si23 or FeMn62Si23; The model of described ferrosilicon is FeSi75; The magnalium ratio of described almag is 1:1; The model of described molybdenum-iron is FeMo60; The model of described ferrotianium is FeTi30 or FeTi40; The model of described ferro-boron is FeB22 or FeB23.。
5. high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 4, it is characterized in that: these several materials of fluoride, carbonate, silica, titanium dioxide, potassium oxide, sodium oxide molybdena, magnesia and calcium oxide form slag former, and the percentage by weight that the amount of slag former accounts for medicinal powder total amount is 5%～15%.
6. high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 5, is characterized in that: take SPCC-SD cold-rolled low carbon steel steel band as welding stick original material material.
7. a method of preparing the high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire as described in claim 1～6 any one, is characterized in that: comprise and be prepared as follows step:
(1), baking: fluoride, carbonate, silica, titanium dioxide, potassium oxide, sodium oxide molybdena, magnesia, calcium oxide are first toasted before powder is joined in mixing in high-temperature baking equipment;
(2), join powder: the medicine core powder of handling well in above-mentioned steps (1) and other powder are mixed in mixed powder equipment;
(3), cut out band: select SPCC-SD cold-rolled low carbon steel steel band, cut applicable size, through milling train format roll, be rolled into " U " type;
(4), filling molding: by dust feeder, medicinal powder is joined in U-shaped groove, the mass percent that medicinal powder accounts for welding wire is 22-26%;
(5) drawing, layer around, packing.
8. the preparation method of high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire according to claim 7, is characterized in that: in step (1), baking temperature is 380～420 ℃.
9. according to the preparation method of the high-intensity high-tenacity electro-gas (enclosed) welding flux-cored wire described in claim 7 or 8, it is characterized in that: in step (2), incorporation time is 2～3 hours.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708228A (en) * | 2015-02-12 | 2015-06-17 | 西安理工大学 | General type self-protection powder core soldering flux and preparation method thereof |
| CN106141505A (en) * | 2016-08-05 | 2016-11-23 | 天长市通联焊业有限公司 | A kind of good toughness hardness height flux-cored wire |
| CN106736001A (en) * | 2016-12-14 | 2017-05-31 | 安徽华众焊业有限公司 | High tenacity flux-cored wire for electrogas arc welding |
| CN108620766A (en) * | 2018-04-11 | 2018-10-09 | 丹阳市华龙特钢有限公司 | A kind of high-intensity and high-tenacity stainless steel arc welding flux cored wire and preparation method thereof |
| CN109719428A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | The resistance to stomata steel of resistance to preliminary larquering flux-cored wire |
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| CN110936060A (en) * | 2019-12-11 | 2020-03-31 | 天津市永昌焊丝有限公司 | Alkaline high-strength steel flux-cored wire |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140798A (en) * | 1986-12-03 | 1988-06-13 | Nippon Steel Corp | Composite wire for electrogas arc welding |
| JP2005329460A (en) * | 2004-04-22 | 2005-12-02 | Nippon Steel Corp | Electrogas arc welding method excellent in brittle fracture initiation resistance characteristics of weld zone |
| CN101073863A (en) * | 2007-06-22 | 2007-11-21 | 安泰科技股份有限公司 | Self-protective and high-toughness flux-cord welding wire |
| CN101185996A (en) * | 2006-11-20 | 2008-05-28 | 株式会社神户制钢所 | Flux-cored wire for electrogas welding and electrogas welding metal |
| CN102689106A (en) * | 2012-06-12 | 2012-09-26 | 中冶焊接科技有限公司 | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank |
| CN102785041A (en) * | 2011-05-17 | 2012-11-21 | 天津雷公焊接材料有限公司 | All-position flux-cored wire for alkaline gas protection |
| CN103862195A (en) * | 2014-03-26 | 2014-06-18 | 天津市永昌焊丝有限公司 | High-hardness high-cracking-resistance gas shielding bead weld flux-cored wire and manufacturing method |
-
2014
- 2014-08-04 CN CN201410380626.XA patent/CN104139250B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140798A (en) * | 1986-12-03 | 1988-06-13 | Nippon Steel Corp | Composite wire for electrogas arc welding |
| JP2005329460A (en) * | 2004-04-22 | 2005-12-02 | Nippon Steel Corp | Electrogas arc welding method excellent in brittle fracture initiation resistance characteristics of weld zone |
| CN101185996A (en) * | 2006-11-20 | 2008-05-28 | 株式会社神户制钢所 | Flux-cored wire for electrogas welding and electrogas welding metal |
| CN101073863A (en) * | 2007-06-22 | 2007-11-21 | 安泰科技股份有限公司 | Self-protective and high-toughness flux-cord welding wire |
| CN102785041A (en) * | 2011-05-17 | 2012-11-21 | 天津雷公焊接材料有限公司 | All-position flux-cored wire for alkaline gas protection |
| CN102689106A (en) * | 2012-06-12 | 2012-09-26 | 中冶焊接科技有限公司 | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank |
| CN103862195A (en) * | 2014-03-26 | 2014-06-18 | 天津市永昌焊丝有限公司 | High-hardness high-cracking-resistance gas shielding bead weld flux-cored wire and manufacturing method |
Cited By (13)
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| CN104708228A (en) * | 2015-02-12 | 2015-06-17 | 西安理工大学 | General type self-protection powder core soldering flux and preparation method thereof |
| CN104708228B (en) * | 2015-02-12 | 2017-03-15 | 西安理工大学 | A kind of universal self-shield fluxed-cored welding agent and preparation method thereof |
| CN106141505A (en) * | 2016-08-05 | 2016-11-23 | 天长市通联焊业有限公司 | A kind of good toughness hardness height flux-cored wire |
| CN106141505B (en) * | 2016-08-05 | 2019-04-30 | 天长市通联焊业有限公司 | A kind of high flux-cored wire of good toughness hardness |
| CN106736001A (en) * | 2016-12-14 | 2017-05-31 | 安徽华众焊业有限公司 | High tenacity flux-cored wire for electrogas arc welding |
| CN108620766A (en) * | 2018-04-11 | 2018-10-09 | 丹阳市华龙特钢有限公司 | A kind of high-intensity and high-tenacity stainless steel arc welding flux cored wire and preparation method thereof |
| CN109719428A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | The resistance to stomata steel of resistance to preliminary larquering flux-cored wire |
| CN110936060A (en) * | 2019-12-11 | 2020-03-31 | 天津市永昌焊丝有限公司 | Alkaline high-strength steel flux-cored wire |
| CN110936060B (en) * | 2019-12-11 | 2021-09-17 | 天津市永昌焊丝有限公司 | Alkaline high-strength steel flux-cored wire |
| CN110900034A (en) * | 2019-12-17 | 2020-03-24 | 天津市永昌焊丝有限公司 | All-position alkaline flux-cored wire |
| CN110900034B (en) * | 2019-12-17 | 2021-08-24 | 天津市永昌焊丝有限公司 | All-position alkaline flux-cored wire |
| CN112453756A (en) * | 2020-11-19 | 2021-03-09 | 天津大桥金属焊丝有限公司 | High-strength and high-toughness gas-shielded flux-cored wire |
| CN112453756B (en) * | 2020-11-19 | 2022-11-29 | 天津大桥金属焊丝有限公司 | High-strength and high-toughness gas-shielded flux-cored wire |
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