CN103753054B - High-tensile stainless steel electrode with multicomponent alloy coating and preparation method thereof - Google Patents
High-tensile stainless steel electrode with multicomponent alloy coating and preparation method thereof Download PDFInfo
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- CN103753054B CN103753054B CN201410057490.9A CN201410057490A CN103753054B CN 103753054 B CN103753054 B CN 103753054B CN 201410057490 A CN201410057490 A CN 201410057490A CN 103753054 B CN103753054 B CN 103753054B
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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
- B23K35/308—Fe as the principal constituent with Cr 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
- B23K35/3602—Carbonates, basic oxides or hydroxides
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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
- B23K35/3608—Titania or titanates
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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
- B23K35/365—Selection of non-metallic compositions of coating 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
- B23K35/22—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
-
- 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
Abstract
The invention belongs to metal material field, relate to a kind of high-tensile stainless steel electrode with multicomponent alloy coating and preparation method thereof.This stainless steel electrode has higher banjo fixing butt jointing tensile strength; This welding rod is made up of welding wire and coating, and coating parcel welding wire, sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire, and this preparation method's technique is simple, and production cost is low, is suitable for suitability for industrialized production.
Description
Technical field
The invention belongs to metal material field, relate to a kind of high-tensile stainless steel electrode with multicomponent alloy coating and preparation method thereof.
Background technology
CN201310061489.9 proposes a kind of high strength underwater wet welding stainless steel electrode, comprise coating and core wire two parts, it is characterized in that core wire is 304L stainless steel, coating is made up of rutile, feldspar, dolomite, carboxymethyl cellulose, manganese powder, ferrosilicon and nickel powder, and the percentage by weight of each composition is: rutile 42-52%, feldspar 20-30%, dolomite 5-10%, carboxymethyl cellulose 5-10%, manganese powder 5-9%, ferrosilicon 1-4% and nickel powder 0-5%.But this welding rod banjo fixing butt jointing low cross-intensity.
Summary of the invention
Object of the present invention is exactly for above-mentioned technological deficiency, and provide a kind of high-tensile stainless steel weldering with multicomponent alloy coating, it has higher banjo fixing butt jointing tensile strength.
Another object of the present invention is to provide a kind of high-tensile stainless steel with multicomponent alloy coating and is welded Preparation Method, and this preparation method's technique is simple, and production cost is low, is suitable for suitability for industrialized production.
Concrete technical scheme of the present invention is as follows:
Have a high-tensile stainless steel electrode for multicomponent alloy coating, be made up of welding wire and coating, coating parcel welding wire, sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire, and each composition of this welding rod is as follows respectively:
Binding agent composition: mixed by weight for 1:0.5-0.9 by sodium silicate and KP1; Wherein sodium silicate Baume degrees ° B é 44.0-46.0, modulus 2.7-2.9, sodium oxide molybdena mass percentage is 14.0-17.0%, and silica quality percentage composition is 28.0-31.0%, and all the other are water; KP1 Baume degrees ° B é 0.50-0.52, modulus 2.2-2.5, silica quality percentage composition is 29.2-31%, and potassium oxide mass percentage is 10.2-12%, and all the other are water;
Wire composition: weight hundred parts of content of each chemical analysis are: chromium 11-13%, manganese 0.3-0.5%, silicon 0.1-0.7%, tungsten 0.4-0.9%, nickel 3-8%, carbon 0.02-0.05%, praseodymium 0.02-0.06%, cerium 0.02-0.05%, all the other Fe;
Coating composition: the weight percentage of each chemical analysis is: dextrin 3-5%, titanium dioxide 20-22%, potassium fluoride 1-5%, feldspar 3-8%, chalk 1-5%, kaolin 1-3%, silica 6-10%, manganeisen 10-12%, multicomponent alloy powder 15-20%, all the other are marble; Wherein in manganeisen, the weight percentage of Mn is 64-67%, and all the other are Fe;
In described multicomponent alloy powder, the weight percentage of each composition is Ce0.05-0.1%, Pr0.05-0.1%, Ba0.05-0.08%, W0.3-0.6%, Cr15-18%, Sn0.5-1%, Mn3-10%, B4-7%, Si9-12%, Ni5-8%, Nb0.05-0.1%, all the other Fe.
The diameter of institute's welding wire is 4-6mm, and length is 400mm, and coating thickness is 1-3mm.
The above-mentioned high-tensile stainless steel electrode preparation method with multicomponent alloy coating, the method comprises the following steps as follows:
1) bonding agent prepares: prepare bonding agent by above-mentioned weight ratio;
2) coating composition preparation: to get it filled skin composition according to above-mentioned weight ratio, and mix; Wherein in manganeisen, the weight percentage of Mn is 64-67%, and all the other are Fe; The wherein preparation of multicomponent alloy powder: prepare burden according to above-mentioned weight ratio, the purity of raw material is all greater than 99.9%; Raw material is put into vaccum sensitive stove melting, smelting temperature is 1570-1590 DEG C, obtains foundry alloy liquid; Then foundry alloy liquid is poured into the crucible tundish that induction heating circle is housed; The frequency of induction heating circle is 50-100kHz, and tundish body lower part has oblong aperture nozzle; Oblong aperture nozzle bottom is chill roll, and chill roll and injector spacing are 0.3-0.6mm; After chill roll rotates, the mother liquor in crucible tundish contacts with chill roll and forms width is 10-50mm, and thickness is the band of 18-24 μm; The linear velocity of chill roll wheel rim is 21-25m/s; Then the band obtained is put into grinding in ball grinder 20-24 hour, obtain multicomponent alloy powder; Coating composition mixes with above-mentioned bonding agent, forms coating material mud; Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:7-11;
3) welding wire preparation: prepare burden according to above-mentioned weight ratio, all material purities are all greater than 99.9%; Melting in induction furnace, smelting temperature is 1590-1610 DEG C, pours into column blank, and then form welding wire by hot drawing method, hot drawing temperature is 1360-1390 DEG C;
4) mixed coating material mud is uniformly distributed along core wire length direction is coated on welding wire; The weight ratio of coating material mud and welding wire is 0.5-0.6:1; Welding rod dried through 14-24 hour, and then put into the inherent 140-200 DEG C of baking 2-3 hour of baking oven, obtained high-tensile stainless steel electrode.
Step 2) in oblong aperture jet size be: width is 0.1-0.4mm, and length is 10-50mm.
Step 2) in the particle diameter of multicomponent alloy powder at 500-900 μm.
Step 3) described in column blank diameter be 20-22mm; Described gage of wire is 4-6mm.
The present invention has following beneficial effect compared to existing technology:
After adding the trace elements such as tungsten, nickel, praseodymium, cerium in welding wire of the present invention; steel surface is made to form fine and close and that tack is very strong diaphragm; prevent oxygen and water in air to infiltrate to steel substrate, slow down corrosion and develop in depth and breadth to ferrous materials, substantially increase the resistance to corrosion of ferrous materials.The element that these ferrites of chromium, silicon are formed, at high temperature can impel metal surface to generate fine and close oxide-film, prevents from continuing oxidation, is improve the non-oxidizability of steel and the essential element of high temperature resistance gas attack performance.
Multicomponent alloy powder in material had both been deoxidier, was again alloying constituent.Ni, Nb, W, Cr in multicomponent alloy powder can participate in the alloying process of steel, play solution strengthening effect, improve intensity and the toughness of welding point; The tissue of Ce, Pr, Ba refinement joint, plays crystal boundary invigoration effect.Nb is carbide, can form the carbide of small and dispersed, improves the elevated temperature strength of steel, Nb be combined with carbon also can prevent steel at high temperature or postwelding produce intercrystalline corrosion.Mn, B, Si, Sn wherein can play deoxidation.
In material, dextrin is gas-forming agent, and these materials can produce a large amount of carbon monoxide, carbon dioxide, hydrogen etc., enclosing electric arc when welding rod melts, the not oxidized and nitrogenize of protection metal.Titanium dioxide, potassium fluoride are shoddye agent, dilution slag, active to increase it.Waterglass is arc stabilizer, is a kind of material of easy ionization.Two kinds of waterglass mixing improve arc burning stability, and make electric arc be easy to ignite.Marble, kaolin, feldspar are slag former.Chalk is arc stabilizer, is a kind of material of easy ionization, can improves arc burning stability, and makes electric arc be easy to ignite.
The high-tensile stainless steel electrode with multicomponent alloy coating of the present invention can be applicable to electronic instrument aspect.
Accompanying drawing explanation
Fig. 1 is the high-tensile stainless steel electrode coating organization chart with multicomponent alloy coating prepared by the embodiment of the present invention one.
Detailed description of the invention
Raw materials used in following example:
Sodium silicate Baume degrees ° B é 44.0-46.0, modulus 2.7-2.9, sodium oxide molybdena mass percentage is 14.0-17.0%, and silica quality percentage composition is 28.0-31.0%, and all the other are water.
KP1 Baume degrees ° B é 0.50-0.52, modulus 2.2-2.5, silica quality percentage composition is 29.2-31%, and potassium oxide mass percentage is 10.2-12%, and all the other are water.
In raw material: the particle diameter of dextrin, titanium dioxide powder, potassium fluoride powder, feldspar powder, whiting, kaolin powder, silicon dioxide powder, manganeisen powder, marble powder is 400-600 μm.
Feldspar is (commercial), wherein each composition mass percentage: Al2O3 14-16%, Na2O 7-10%, all the other SiO2.
Marble is (commercial), each composition mass percentage in its composition: Fe2O3 0.5-1.2%, SiO20.8-1.5%, all the other CaCO3.
Kaolin is (commercial), wherein each composition mass percentage: Al2O3 38-40%, H2O 12-14%, SiO2.
In chalk, each Ingredient Wt percentage composition is: silica 0.1-0.2%, alundum (Al2O3) 0.01-0.03%, di-iron trioxide 0.01-0.03%, and all the other are calcium carbonate.
Embodiment one:
The present invention has the high-tensile stainless steel electrode of multicomponent alloy coating, is made up of welding wire and coating, coating parcel welding wire, and sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire, and the preparation process of this welding rod is as follows:
1) binding agent composition: mixed by weight for 1:0.5 by sodium silicate and KP1;
2) coating composition: the weight percentage of each chemical analysis is: dextrin 3%; Titanium dioxide powder 20; Potassium fluoride powder 1%; Feldspar powder 3%; Whiting 1%; Kaolin powder 1%; Silicon dioxide powder 6%; Manganeisen powder 10%; Multicomponent alloy powder 15%, all the other are marble powder.Wherein in manganeisen powder, the weight percentage of Mn is 65%, and all the other are Fe;
In described multicomponent alloy powder, the weight percentage of each composition is: Ce0.05%, Pr0.0%, Ba0.05%, W0.3%, Cr15%, Sn0.5%, Mn3%, B4%, Si9%, Ni5%, Nb0.05%, all the other Fe.The preparation of multicomponent alloy powder: prepare burden according to above-mentioned raw materials, the purity of raw material is all greater than 99.9%; Raw material is put into vaccum sensitive stove melting, smelting temperature is 1570 DEG C, obtains foundry alloy liquid; Then foundry alloy liquid is poured into the crucible tundish that induction heating circle is housed; The frequency of induction heating circle is 50kHz, and tundish body lower part has oblong aperture nozzle; Oblong aperture jet size is: width is 0.1mm, and length is 10mm.Oblong aperture nozzle bottom is chill roll, and chill roll and injector spacing are 0.3mm; After chill roll rotates, the mother liquor in crucible tundish contacts with chill roll and forms width is 10-50mm, and thickness is the band of 18-24 μm; The linear velocity of chill roll wheel rim is 21m/s; Then the band obtained is put into grinding in ball grinder 20 hours, obtain multicomponent alloy powder, the particle diameter of multicomponent alloy powder is at 500-900 μm.
Coating composition mixes with above-mentioned bonding agent, forms coating material mud; Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:7.
3) welding wire preparation: according to weight hundred parts of content be: welding wire percetage by weight is 11% chromium, 0.3% manganese, 0.1% silicon, 0.4% tungsten, nickel 3%, carbon 0.02%, praseodymium 0.02%, cerium 0.02%, all the other are prepared burden for Fe, and all material purities are all greater than 99.9%; The melting in induction furnace of each raw material, smelting temperature is 1590 DEG C, pours into column blank, and then form welding wire by hot drawing method, hot drawing temperature is 1360 DEG C; Column blank diameter is 20mm; Described gage of wire is 4mm.
4) mixed coating material mud is uniformly distributed along core wire length direction is coated on welding wire; The weight ratio of coating material mud and welding wire is 0.5:1, and coating thickness is 1-3mm; Welding rod dried through 14 hours, and then put into the inherent 140 DEG C of bakings of baking oven 3 hours, obtained the high-tensile stainless steel electrode of multicomponent alloy coating.
Embodiment two:
The present invention has the high-tensile stainless steel electrode of multicomponent alloy coating, is made up of welding wire and coating, and coating parcel welding wire, sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire.Each composition of this welding rod is as follows respectively:
1) binding agent composition: mixed by weight for 1:0.9 by sodium silicate and KP1;
2) coating composition: the weight percentage of each chemical analysis is: dextrin: 3%; Titanium dioxide powder: 22%; Potassium fluoride powder: 5%; Feldspar powder: 8%; Whiting 5%; Kaolin powder 3%; Silicon dioxide powder 10%; Manganeisen powder 12%; Multicomponent alloy powder 20%, all the other are marble powder; Wherein in manganeisen, the weight percentage of Mn is 65%, and all the other are Fe;
In described multicomponent alloy powder, the weight percentage of each composition is: Ce0.1%, Pr0.1%, Ba0.08%, W0.6%, Cr18%, Sn1%, Mn10%, B7%, Si12%, Ni8%, Nb0.1%, all the other Fe.
The preparation of multicomponent alloy powder: prepare burden according to above-mentioned weight ratio, the purity of raw material is all greater than 99.9%; Raw material is put into vaccum sensitive stove melting, smelting temperature is 1590 DEG C, obtains foundry alloy liquid; Then foundry alloy liquid is poured into the crucible tundish that induction heating circle is housed; The frequency of induction heating circle is 100kHz, and tundish body lower part has oblong aperture nozzle; Oblong aperture jet size is: width is 0.4mm, and length is 50mm.Oblong aperture nozzle bottom is chill roll, and chill roll and injector spacing are 0.6mm; After chill roll rotates, the mother liquor in crucible tundish contacts with chill roll and forms width is 10-50mm, and thickness is the band of 18-24 μm; The linear velocity of chill roll wheel rim is 25m/s; Then the band obtained is put into grinding in ball grinder 24 hours, obtain multicomponent alloy powder, the particle diameter of multicomponent alloy powder is at about 700 μm.
Coating composition mixes with above-mentioned bonding agent, forms coating material mud; Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:10;
3) welding wire preparation: according to weight hundred parts of content be: chromium 13%, manganese 0.5%, silicon 0.7%, tungsten 0.9%, nickel 8%, carbon 0.05%, praseodymium 0.06%, cerium 0.05%, all the other Fe prepare burden, and all material purities are all greater than 99.9%; The melting in induction furnace of each raw material, smelting temperature is 1610 DEG C, pours into column blank, and then form welding wire by hot drawing method, hot drawing temperature is 1390 DEG C; Column blank diameter is 22mm; Described gage of wire is 6mm.
4) mixed coating material mud is uniformly distributed along core wire length direction is coated on welding wire; The weight ratio of coating material mud and welding wire is 0.6:1, and coating thickness is 1-3mm; Welding rod dried through 24 hours, and then put into the inherent 200 DEG C of baking 2-3 hour of baking oven, obtained the high-tensile stainless steel electrode of multicomponent alloy coating.
Embodiment three:
The present invention has the high-tensile stainless steel electrode of multicomponent alloy coating, is made up of welding wire and coating, and coating parcel welding wire, sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire.Each composition of this welding rod is as follows respectively:
1) binding agent composition: mixed by weight for 1:0.7 by sodium silicate and KP1;
2) coating composition: the percentage by weight of each composition is: dextrin: 4%; Titanium dioxide powder: 21%; Potassium fluoride powder: 4%; Feldspar powder: 5%; Whiting: 4%; Kaolin powder: 2%; Silicon dioxide powder: 8%; Manganeisen powder: 11%; Multicomponent alloy powder 18%, all the other are marble.Wherein in manganeisen, the weight percentage of Mn is 66%, and all the other are Fe;
In described multicomponent alloy powder, the weight percentage of each composition is: Ce0.08%, Pr0.08%, Ba0.06%, W0.5%, Cr16%, Sn0.6%, Mn7%, B5%, Si10%, Ni6%, Nb0.09%, all the other Fe.
The preparation of multicomponent alloy powder: prepare burden according to above-mentioned weight ratio, the purity of raw material is all greater than 99.9%; Raw material is put into vaccum sensitive stove melting, smelting temperature is 1580 DEG C, obtains foundry alloy liquid; Then foundry alloy liquid is poured into the crucible tundish that induction heating circle is housed; The frequency of induction heating circle is 80kHz, and tundish body lower part has oblong aperture nozzle; Oblong aperture jet size is: width is 0.2mm, and length is 30mm.Oblong aperture nozzle bottom is chill roll, and chill roll and injector spacing are 0.5mm; After chill roll rotates, the mother liquor in crucible tundish contacts with chill roll and forms width is 10-50mm, and thickness is the band of 18-24 μm; The linear velocity of chill roll wheel rim is 23m/s; Then the band obtained is put into grinding in ball grinder 20 hours, obtain multicomponent alloy powder, the particle diameter of multicomponent alloy powder is at 500-900 μm.
Coating composition mixes with above-mentioned bonding agent, forms coating material mud; Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:8;
3) welding wire preparation: the percetage by weight of each composition of welding wire is: 12% chromium, 0.4% manganese, 0.5% silicon, 0.7% tungsten, nickel 5%, carbon 0.03%, praseodymium 0.04%, cerium 0.03%, all the other are prepared burden for Fe, and all material purities are all greater than 99.9%; The melting in induction furnace of each raw material, smelting temperature is 1600 DEG C, pours into column blank, and then form welding wire by hot drawing method, hot drawing temperature is 13800 DEG C; Column blank diameter is 22mm; Described gage of wire is 6mm.
4) mixed coating material mud is uniformly distributed along core wire length direction is coated on welding wire; The weight ratio of coating material mud and welding wire is 0.6:1, and coating thickness is 1-3mm; Welding rod dried through 24 hours, and then put into the inherent 180 DEG C of bakings of baking oven 2 hours, obtained the high-tensile stainless steel electrode of multicomponent alloy coating.
Embodiment four: (composition proportion not the present invention relates in proportion)
The present invention has the high-tensile stainless steel electrode of multicomponent alloy coating, is made up of welding wire and coating, coating parcel welding wire, and the diameter of welding wire is 4mm, and length is 400mm, and coating thickness is 1mm; Sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire.Each composition of this welding rod is as follows respectively:
Binding agent composition: mixed by weight for 1:0.5 by sodium silicate and KP1;
Wire composition: the weight percentage of each chemical analysis is: wire composition: weight hundred parts of content of each chemical analysis are: chromium 10%, manganese 0.1%, silicon 0.05%, tungsten 0.2%, nickel 1%, carbon 0.01%, praseodymium 0.01%, cerium 0.01%, all the other Fe;
Coating composition: the weight percentage of each chemical analysis is: dextrin 2%, titanium dioxide powder 17%, potassium fluoride powder 0.5%, feldspar powder 1%, whiting 0.5%, kaolin powder 0.5%, silicon dioxide powder 4%, manganeisen 8%, multicomponent alloy powder 13%, all the other are marble; In multicomponent alloy powder, the weight percentage of each composition is Ce0.02%, Pr0.02%, Ba0.02%, W0.2%, Cr12%, Sn0.2%, Mn1%, B2%, Si7%, Ni2%, Nb0.02%, all the other Fe;
Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:8;
This has all the other conditions of the high-tensile stainless steel electrode of multicomponent alloy coating and preparation process with embodiment one.
Embodiment five: (composition proportion not the present invention relates in proportion)
The present invention has the high-tensile stainless steel electrode of multicomponent alloy coating, is made up of welding wire and coating, coating parcel welding wire, and the diameter of welding wire is 4mm, and length is 400mm, and coating thickness is 1mm; Sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire.Each composition of this welding rod is as follows respectively:
Binding agent composition: mixed by weight for 1:0.5 by sodium silicate and KP1;
Wire composition: weight hundred parts of content of each chemical analysis are: chromium 15%, manganese 0.6%, silicon 0.9%, tungsten 1.1%, nickel 10%, carbon 0.08%, praseodymium 0.09%, cerium 0.08%, all the other Fe;
Coating composition: the weight percentage of each chemical analysis is: dextrin 7%, titanium dioxide powder 25%, potassium fluoride powder 7%, feldspar powder 10%, whiting 7%, kaolin powder 5%, silicon dioxide powder 12%, manganeisen powder 14%, multicomponent alloy powder 22%, all the other are marble; In multicomponent alloy powder, the weight percentage of each composition is Ce0.2%, Pr0.2%, Ba0.09%, W0.8%, Cr19%, Sn1.1%, Mn11%, B8%, Si13%, Ni9%, Nb0.2%, all the other Fe;
Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:8;
This has all the other conditions of the high-tensile stainless steel electrode of multicomponent alloy coating and preparation process with embodiment one.
Table one
As seen from the above table, welding rod prepared by the present invention has higher banjo fixing butt jointing tensile strength, and performance is better than contrast material welding rod.And when proportioning components is not in design of the present invention, banjo fixing butt jointing tensile strength can decline to some extent.
Claims (6)
1. have a high-tensile stainless steel electrode for multicomponent alloy coating, be made up of welding wire and coating, coating parcel welding wire, sodium silicate and KP1 are bonding agent, and coating is bonded in around welding wire, it is characterized in that: each composition of this welding rod is as follows respectively:
Binding agent composition: mixed by weight for 1:0.5-0.9 by sodium silicate and KP1; Wherein sodium silicate Baume degrees ° B é 44.0-46.0, modulus 2.7-2.9, sodium oxide molybdena mass percentage is 14.0-17.0%, and silica quality percentage composition is 28.0-31.0%, and all the other are water; KP1 Baume degrees ° B é 0.50-0.52, modulus 2.2-2.5, silica quality percentage composition is 29.2-31%, and potassium oxide mass percentage is 10.2-12%, and all the other are water;
Wire composition: the weight percentage of each chemical analysis is: chromium 11-13%, manganese 0.3-0.5%, silicon 0.1-0.7%, tungsten 0.4-0.9%, nickel 3-8%, carbon 0.02-0.05%, praseodymium 0.02-0.06%, cerium 0.02-0.05%, all the other Fe;
Coating composition: the weight percentage of each chemical analysis is: dextrin 3-5%, titanium dioxide 20-22%, potassium fluoride 1-5%, feldspar 3-8%, chalk 1-5%, kaolin 1-3%, silica 6-10%, manganeisen 10-12%, multicomponent alloy powder 15-20%, all the other are marble; Wherein in manganeisen, the weight percentage of Mn is 64-67%, and all the other are Fe;
In described multicomponent alloy powder, the weight percentage of each composition is Ce0.05-0.1%, Pr0.05-0.1%, Ba0.05-0.08%, W0.3-0.6%, Cr15-18%, Sn0.5-1%, Mn3-10%, B4-7%, Si9-12%, Ni5-8%, Nb0.05-0.1%, all the other Fe.
2. there is the high-tensile stainless steel electrode of multicomponent alloy coating according to claim 1, it is characterized in that: the weight ratio of described coating composition and bonding agent is 100:7-11; The diameter of described welding wire is 4-6mm, and length is 400mm, and coating thickness is 1-3mm.
3. there is described in claim 1 the high-tensile stainless steel electrode preparation method of multicomponent alloy coating, it is characterized in that: the method comprises the following steps as follows:
1) bonding agent prepares: prepare bonding agent by above-mentioned weight ratio;
2) coating composition preparation: to get it filled skin composition according to above-mentioned weight ratio, and mix; Wherein in manganeisen, the weight percentage of Mn is 64-67%, and all the other are Fe; The wherein preparation of multicomponent alloy powder: prepare burden according to above-mentioned weight ratio, the purity of raw material is all greater than 99.9%; Raw material is put into vaccum sensitive stove melting, smelting temperature is 1570-1590 DEG C, obtains foundry alloy liquid; Then foundry alloy liquid is poured into the crucible tundish that induction heating circle is housed; The frequency of induction heating circle is 50-100kHz, and tundish body lower part has oblong aperture nozzle; Oblong aperture nozzle bottom is chill roll, and chill roll and injector spacing are 0.3-0.6mm; After chill roll rotates, the mother liquor in crucible tundish contacts with chill roll and forms width is 10-50mm, and thickness is the band of 18-24 μm; The linear velocity of chill roll wheel rim is 21-25m/s; Then the band obtained is put into grinding in ball grinder 20-24 hour, obtain multicomponent alloy powder; Coating composition mixes with above-mentioned bonding agent, forms coating material mud; Wherein the weight ratio of coating composition and above-mentioned bonding agent is 100:7-11;
3) welding wire preparation: prepare burden according to above-mentioned weight ratio, all material purities are all greater than 99.9%; Melting in induction furnace, smelting temperature is 1590-1610 DEG C, pours into column blank, and then form welding wire by hot drawing method, hot drawing temperature is 1360-1390 DEG C;
4) mixed coating material mud is uniformly distributed along core wire length direction is coated on welding wire; The weight ratio of coating material mud and welding wire is 0.5-0.6:1; Welding rod dried through 14-24 hour, and then put into the inherent 140-200 DEG C of baking 2-3 hour of baking oven, obtained high-tensile stainless steel electrode.
4. preparation method according to claim 3, is characterized in that: step 2) in oblong aperture jet size be: width is 0.1-0.4mm, and length is 10-50mm.
5. preparation method according to claim 3, is characterized in that: step 2) in the particle diameter of multicomponent alloy powder at 500-900 μm.
6. preparation method according to claim 3, is characterized in that: step 3) described in column blank diameter be 20-22mm; Described gage of wire is 4-6mm.
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