CN104551436A - Flux-cored wire for surfacing repair - Google Patents
Flux-cored wire for surfacing repair Download PDFInfo
- Publication number
- CN104551436A CN104551436A CN201410638195.2A CN201410638195A CN104551436A CN 104551436 A CN104551436 A CN 104551436A CN 201410638195 A CN201410638195 A CN 201410638195A CN 104551436 A CN104551436 A CN 104551436A
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- China
- Prior art keywords
- flux
- cored wire
- sheetmetal
- main body
- surfacing
- Prior art date
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Classifications
-
- 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
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
- B23K35/24—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
- B23K35/3093—Fe as the principal constituent with other elements as next major constituents
Abstract
The invention relates to the technical field of welding, and discloses a flux-cored wire for surfacing repair. The flux-cored wire comprises a flux-cored wire main body, wherein the flux-cored wire main body comprises a metal layer wrapping a flux core; the flux core comprises the following components in percentage by weight: 0.1 to 5 percent of C, 0.8 to 3 percent of Mn, 0.5 to 2 percent of Si, 3 to 25 percent of Cr, 1 to 4 percent of Mo, 1 to 10 percent of W and the balance of Fe. According to the flux-cored wire, Mo is added into a conventional flux core formula, so that the performance of high temperature resistance and abrasion resistance of a welding material is achieved, the strength of a welding seam is ensured, and a welding layer is favorably prevented from being stripped in large scale; by Mo in steel, the hardenability and the thermal strength can be improved, the temper brittleness is prevented, and the residual magnetism and the coercive force are improved; silicon does not form carbide, so that a powerful function of promoting the graphitization of carbon is realized.
Description
Technical field
The present invention relates to welding technology field, particularly relate to flux-cored wire.
Background technology
At present, along with the fast development of economy, technical merit improves constantly, and industry just transforms to technology-intensive type gradually from labor-intensive, and mechanization and automatization level improve constantly, and mechanical equipment component attrition causes huge economic loss.In all kinds of wear type, abrasive wear occupies very large ratio, and all kinds of mechanical part substantially all exists abrasive wear, comprising mining machinery, engineering machinery, metallurgical machinery, foundry machinery and forging machinery etc.The wearing and tearing of all kinds of machinery, reduce production efficiency, decrease life cycle.
At present, common submerged arc welding material, otherwise hardness is lower; Hardness is high, and crack resistance is very poor.In addition, traditional submerged-arc welding is not provided with protective gas, and molten bath is oxidizable.
Summary of the invention
The object of the present invention is to provide a kind of surfacing and repairing flux-cored wire, with at least one in solving the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of surfacing and repairing flux-cored wire, comprise a flux-cored wire main body, it is characterized in that, described flux-cored wire main body comprises a metal level, medicine core is enclosed with in described metal level, described medicine core includes following element by weight percentage, and C:0.1%-5% ﹑ Mn:0.8%-3%, Si:0.5%-2%, Cr:3%-25%, Mo:1%-4%, W:1%-10%, surplus are Fe.
The present invention adds Mo in the proportioning of traditional medicine core, thus achieves high temperature resistant, the anti abrasive performance of welding material, ensures the intensity of weld seam, is conducive to preventing the large area of layer from peeling off.Mo can improve quenching degree and heat resistance in steel.Prevent temper brittleness, increase remanent magnetism and strong C, silicon do not form carbide, have the graphited effect of strong promotion carbon.
As a kind of preferred version, described medicine core is made up of following element by weight percentage, and C:0.55% ﹑ Mn:2.5%, Si:0.65%, Cr:5.5%, Mo:1.1%, W:1.3%, surplus are Fe.
As another kind of preferred version, described medicine core is made up of following element by weight percentage, and C:0.9% ﹑ Mn:0.8%, Si:0.5%, Cr:6%, Mo:1.2%, W:9%, surplus are Fe.
Described medicine in-core comprises carbon dust, ground hematite, generates iron and carbon-dioxide protecting gas under carbon dust and ground hematite high-temperature condition, and for generating the carbon dust of carbon-dioxide protecting gas, the mol ratio of ground hematite is 2:3.The present invention is by the composition of medicine core thus realize the generation of protective gas carbon dioxide, without the need in welding process, uses instrument to be full of protective gas in the outside of flux-cored wire, thus ensures welding quality.The present invention, on the basis of the flux-cored wire needed for traditional submerged-arc welding, is provided with protective gas, thus prevents traditional submerged-arc welding from easily producing the problem of the oxidation in molten bath.
Described metal level comprises sheetmetal in, an outer sheetmetal, the cross section of described interior sheetmetal and described outer sheetmetal is two concentric circles, described interior sheetmetal and described outer sheetmetal surround the first cavity of an accommodating medicine core, described medicine core is provided with in described first cavity, described interior sheetmetal surrounds one second cavity, is a gas channel with described second cavity.
Tradition flux-cored wire often needs protective gas thus realizes welding quality in welding process, the present invention is provided with a gas channel in the structure of flux-cored wire, be convenient to the conducting of protective gas, compare in conventional welding process, protective gas is full of in the outside of flux-cored wire, thus guarantee welding quality, but this gas protects mode, protective gas in welding process is easily caused to escape not exclusively, affect welding quality, the present invention is by being provided with a gas channel in the inside of flux-cored wire, control in welding process by protective gas overheated, improve thermal diffusivity, be convenient to gas escape.
The outer wall of described flux-cored wire main body is provided with at least three air inlets, and described air inlet is by a connection channel and described gas channel UNICOM, and in described at least three air inlets, any two adjacent air inlet spacing are consistent;
Described flux-cored wire main body also comprises an air pump, and described air pump is provided with a gas outlet, and described gas outlet is by pipeline and described air inlet UNICOM, and the external diameter of described pipeline and the internal diameter of described air inlet match;
Described flux-cored wire main body fills protective gas by air pump in described gas channel.
The present invention by being provided with different air inlets, thus according to welding needed for flux-cored wire main body consumption adopt the air inlet do not existed together is inflated, decrease air-pump inflating amount, shorten the inflation path of air pump.
Described protective gas is carbon dioxide.
Described protective gas also can be the mist of carbon dioxide and argon gas.
Be provided with the anti-return film that prevents the reverse circulation of gas in described second cavity, described anti-return film is positioned at the second cavity inner wall near described air inlet place;
Described anti-return film is provided with an arc convex, and described arc convex has cross cracking;
Described arc convex is towards the circulating direction of described gas channel.
The present invention, by arranging anti-return film at opening part, avoids the protective gas being poured gas channel by air pump, reverse conducting.
Described arc convex is towards the axis of described air inlet.
Described anti-return film can in hemispherical, using in hemispheric anti-return film as described arc convex.
Described anti-return film can also in circular, and the middle part of described anti-return film is provided with described arc convex, and the internal diameter of described annulus equals the external diameter of described arc convex.
Described metal level comprises sheetmetal in, an outer sheetmetal, and the cross section of described interior sheetmetal and described outer sheetmetal is two isocentric circular arc, and the radian of two described isocentric circular arc is identical, and opening direction is consistent;
Described metal level also comprises two connection sheetmetals, and described outer sheetmetal connects described interior sheetmetal by two described connection sheetmetals, to surround the first cavity of an accommodating medicine core, is provided with described medicine core in described first cavity;
Two described connection sheetmetals are parallel to each other, and the distance of two described connection sheetmetals is not less than 1/2 of the external diameter of described interior sheetmetal.
The flux-cored wire main body of said structure improves thermal diffusivity, is convenient to gas and escapes.
The outer wall of described flux-cored wire main body is provided with an antioxidation coating.The present invention, by being provided with an antioxidation coating at outer wall, prevents flux-cored wire main body from affecting properties of product because of oxidation.Traditional flux-cored wire body surfaces has often set up a steel surrounding layer, oxidizable, and the present invention, by being provided with an antioxidation coating at flux-cored wire body outer surface, optimizes its structure, ensures that the performance of product is not by the impact of extraneous factor.The thickness of antioxidation coating is not more than 1mm.Antioxidation coating is evenly coated on flux-cored wire body outer wall by anti-oxidation reducing agent to form.
As a kind of preferred version, the outer wall of described outer sheetmetal is provided with at least three road depressions, and the length direction of described depression is parallel to the length direction of described flux-cored wire main body, the cross section semicircular in shape of described depression or triangle.
The present invention is by being provided with three roads depressions at the outer wall of the smooth flux-cored wire of tradition, thus the suitable local thickness reducing flux-cored wire main body, be convenient to medicine core and fully react, improve the heat dispersal situations of flux-cored wire main body.
As another kind of preferred version, the outer wall of described outer sheetmetal is provided with pit, and described pit is equidistantly arranged at the axis direction of described outer sheetmetal outer wall, and described pit is arranged ringwise in the radial direction of described outer sheetmetal outer wall.
Be convenient to the heat dispersal situations improving flux-cored wire main body.
As a kind of preferred version, the inwall of described interior sheetmetal is provided with at least three road depressions, and the length direction of described depression is parallel to the length direction of described flux-cored wire main body, the cross section semicircular in shape of described depression or triangle.
The present invention by being provided with three roads depressions at the inwall of the smooth flux-cored wire of tradition, thus makes interior sheetmetal fully contact with protective gas, raising internal heat dissipating effect.
As another kind of preferred version, the inwall of described interior sheetmetal is provided with pit, and described pit is equidistantly arranged at the axis direction of described interior sheetmetal inwall, and described pit is arranged ringwise in the radial direction of described interior sheetmetal inwall.
Thus interior sheetmetal is fully contacted with protective gas, improve internal heat dissipating effect.
The cross section of described outer sheetmetal is an ellipse, and the thickness of described outer sheetmetal is not more than 3mm.
The present invention is by improveing as non-circular cross-section by the circular cross section of the outer sheetmetal of traditional flux-cored wire, under the prerequisite that charge core amount is constant, decrease cross-sectional area, and, it is good that non-circular cross-section compares the ductility of circular cross section flux-cored wire main body in commissure, improves welding quality, improve the smoothness planarization that welding bead is shaping, the flux-cored wire main body that the present invention is more traditional is not easily rolled, and stationarity is good; In addition, the present invention by controlling the thickness of outer sheetmetal, thus avoids because outer sheetmetal is blocked up, and the medicine core caused cannot fully react, and is convenient to medicine core reacts by structure of the present invention.
Described flux-cored wire main body comprises a welding wire clamping part, and described welding wire clamping part is made up of magnetic.Thus be fixed on the positioning by welding wire clamping part when user welds, can clamping effect be improved by the effect of magnetic.
The manufacture craft of described medicine core, comprises and first the material making medicine core being pulverized, and is heated into powder slurry, and in the powder slurry of heat, add the carbon dioxide of high pressure, carbon dioxide gas cognition forms tiny high pressure bubble in powder slurry; Under closed environment, become broken end after cooling, enter in metal level as flux cored filler using broken end.Release pressure after the cooling of powder slurry, powder agglomates can be cracked, becomes broken end but still contain high pressure bubble in broken end.When in welding process, after medicine core melted by heat, gas is released releasing carbon dioxide, forms protection.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional structure schematic diagram of the present invention;
Fig. 2 is the partial structurtes schematic diagram that the present invention adopts Fig. 1 structure;
Fig. 3 is another kind of structural representation of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
A kind of surfacing and repairing flux-cored wire, comprise a flux-cored wire main body, flux-cored wire main body comprises a metal level, medicine core is enclosed with in metal level, medicine core includes following element by weight percentage, and C:0.1%-5% ﹑ Mn:0.8%-3%, Si:0.5%-2%, Cr:3%-25%, Mo:1%-4%, W:1%-10%, surplus are Fe.The present invention adds Mo in the proportioning of traditional medicine core, thus achieves high temperature resistant, the anti abrasive performance of welding material, ensures the intensity of weld seam, is conducive to preventing the large area of layer from peeling off.Mo can improve quenching degree and heat resistance in steel.Prevent temper brittleness, increase remanent magnetism and strong C, silicon do not form carbide, have the graphited effect of strong promotion carbon.As a kind of preferred version, medicine core is made up of following element by weight percentage, and C:0.55% ﹑ Mn:2.5%, Si:0.65%, Cr:5.5%, Mo:1.1%, W:1.3%, surplus are Fe.As another kind of preferred version, medicine core is made up of following element by weight percentage, and C:0.9% ﹑ Mn:0.8%, Si:0.5%, Cr:6%, Mo:1.2%, W:9%, surplus are Fe.
The design considerations of drug core component of the present invention is: C: be strong austenitizing forming element and reduction Ms point element.In the design of resurfacing welding material, C is most important intensified element, is also cause crisp element simultaneously.C has the effect of gap solution strengthening, increases the content of C in material, will impel the formation of twin crystal martensite, increases carbide quantity, reduces carbonization material dot spacing, increases post-curing peak value, obtains high hardness.But the increase of C content can make the impact toughness of material decline.
Mn: be stable austenite element, reduces Ms point, improves quenching degree.In addition, Mn or good deoxidier and desulfurizing agent, Mn and Si synergy is conducive to reducing the oxygen content in weld seam, be combined with S and form MnS, prevent the FeS of low melting point from being formed, prevent the tendency producing fire check in weld metal, improve the ability of the heat resistanceheat resistant crackle of weld seam.Mn and iron can form solid solution, improve ferrite and austenitic intensity and hardness in steel, are again weak carbide formers simultaneously, replace the part Fe in cementite, form Composite carburization body.But excessive Mn content will make the grain coarsening of steel, the ductility of steel is reduced, toughness declines.
Si: be strong ferrite former, Si improves except the effect of solution strengthening except in ferrite and austenite, also has deoxidation, reduces the oxygen content in weld seam, thus reduces the detrimental effect of oxygen Resistance of Weld Metal.
Cr: improve quenching degree, produces solution strengthening, and promote the formation of M, in ferrochrome, when Cr content is within 26%, the impact toughness of alloy can increase along with the increase of Cr content, but more than 26%, impact toughness then can sharply decline.The post-curing peak temperature of Cr is at about 500 DEG C.
W: can increase quenching degree, produces solution strengthening, and suppress temper brittleness, appropriate interpolation, is conducive to the raising of impact toughness.The W elements added, major part is distributed in solid solution, and a small amount of enters into carbide, and when tempering time is longer, the Carbide Phases of formation is relatively many.W is one of important element of the high-temperature stability improving steel.
Medicine in-core comprises carbon dust, ground hematite, generates iron and carbon-dioxide protecting gas under carbon dust and ground hematite high-temperature condition, and for generating the carbon dust of carbon-dioxide protecting gas, the mol ratio of ground hematite is 2:3.The present invention is by the composition of medicine core thus realize the generation of protective gas carbon dioxide, without the need in welding process, uses instrument to be full of protective gas in the outside of flux-cored wire, thus ensures welding quality.
The present invention, on the basis of the flux-cored wire needed for traditional submerged-arc welding, is provided with protective gas, thus prevents traditional submerged-arc welding from easily producing the problem of the oxidation in molten bath.
See Fig. 1, metal level comprises the outer sheetmetal 1 of sheetmetal 2, in, interior sheetmetal 2 is two concentric circles with the cross section of outer sheetmetal 1, interior sheetmetal 2 and outer sheetmetal 1 surround the first cavity 3 of an accommodating medicine core, medicine core is provided with in first cavity 3, interior sheetmetal 2 surrounds one second cavity 4, is a gas channel with the second cavity 4.Tradition flux-cored wire often needs protective gas thus realizes welding quality in welding process, the present invention is provided with a gas channel in the structure of flux-cored wire, be convenient to the conducting of protective gas, compare in conventional welding process, protective gas is full of in the outside of flux-cored wire, thus guarantee welding quality, but this gas protects mode, protective gas in welding process is easily caused to escape not exclusively, affect welding quality, the present invention is by being provided with a gas channel in the inside of flux-cored wire, control in welding process by protective gas overheated, improve thermal diffusivity, be convenient to gas escape.
See Fig. 2, the outer wall of flux-cored wire main body is provided with at least three air inlets, and air inlet is by a connection channel 7 and gas channel 6 UNICOM, and at least three air inlets, any two adjacent air inlet spacing are consistent; Flux-cored wire main body also comprises an air pump, and air pump is provided with a gas outlet, and gas outlet is by pipeline and air inlet UNICOM, and the external diameter of pipeline and the internal diameter of air inlet match; Flux-cored wire main body fills protective gas by air pump in gas channel 6.The present invention by being provided with different air inlets, thus according to welding needed for flux-cored wire main body consumption adopt the air inlet do not existed together is inflated, decrease air-pump inflating amount, shorten the inflation path of air pump.
Protective gas is carbon dioxide.Protective gas also can be the mist of carbon dioxide and argon gas.
Be provided with the anti-return film that prevents the reverse circulation of gas in second cavity 4, anti-return film is positioned at the second cavity 4 inwall near air inlet place; Anti-return film is provided with an arc convex, arc convex has cross cracking; Arc convex is towards the circulating direction of gas channel.The present invention, by arranging anti-return film at opening part, avoids the protective gas being poured gas channel by air pump, reverse conducting.
Arc convex is towards the axis of air inlet.Anti-return film can in hemispherical, using in hemispheric anti-return film as arc convex.Anti-return film can also in circular, and the middle part of anti-return film is provided with arc convex, and the internal diameter of annulus equals the external diameter of arc convex.
See Fig. 3, metal level comprises the outer sheetmetal 1 of sheetmetal 2, in, and interior sheetmetal 2 is two isocentric circular arc with the cross section of outer sheetmetal 1, and the radian of two isocentric circular arc is identical, and opening direction is consistent; Metal level also comprises two connection sheetmetals 5, and outer sheetmetal 1 connects interior sheetmetal 2 by two connection sheetmetals 5, to be provided with medicine core in the first cavity 3, first cavity 3 surrounding an accommodating medicine core; Two connection sheetmetals 5 are parallel to each other, and the distance of two connection sheetmetals 5 is not less than 1/2 of the external diameter of interior sheetmetal 2.The flux-cored wire main body of said structure improves thermal diffusivity, is convenient to gas and escapes.Interior sheetmetal 2 be connected sheetmetal 5 and surround one second cavity 4.
The outer wall of flux-cored wire main body is provided with an antioxidation coating.The present invention, by being provided with an antioxidation coating at outer wall, prevents flux-cored wire main body from affecting properties of product because of oxidation.Traditional flux-cored wire body surfaces has often set up a steel surrounding layer, oxidizable, and the present invention, by being provided with an antioxidation coating at flux-cored wire body outer surface, optimizes its structure, ensures that the performance of product is not by the impact of extraneous factor.The thickness of antioxidation coating is not more than 1mm.Antioxidation coating is evenly coated on flux-cored wire body outer wall by anti-oxidation reducing agent to form.
As a kind of preferred version, the outer wall of outer sheetmetal is provided with at least three road depressions, and the length direction of depression is parallel to the length direction of flux-cored wire main body, the cross section semicircular in shape of depression or triangle.The present invention is by being provided with three roads depressions at the outer wall of the smooth flux-cored wire of tradition, thus the suitable local thickness reducing flux-cored wire main body, be convenient to medicine core and fully react, improve the heat dispersal situations of flux-cored wire main body.As another kind of preferred version, the outer wall of outer sheetmetal is provided with pit, and the axis direction of pit sheetmetal outer wall outside is equidistantly arranged, and the radial direction of pit sheetmetal outer wall is outside arranged ringwise.Be convenient to the heat dispersal situations improving flux-cored wire main body.
As a kind of preferred version, the inwall of interior sheetmetal is provided with at least three road depressions, and the length direction of depression is parallel to the length direction of flux-cored wire main body, the cross section semicircular in shape of depression or triangle.The present invention by being provided with three roads depressions at the inwall of the smooth flux-cored wire of tradition, thus makes interior sheetmetal fully contact with protective gas, raising internal heat dissipating effect.As another kind of preferred version, the inwall of interior sheetmetal is provided with pit, and pit is equidistantly arranged at the axis direction of interior sheetmetal inwall, and pit is arranged ringwise in the radial direction of interior sheetmetal inwall.Thus interior sheetmetal is fully contacted with protective gas, improve internal heat dissipating effect.
The cross section of outer sheetmetal is an ellipse, and the thickness of outer sheetmetal is not more than 3mm.The present invention is by improveing as non-circular cross-section by the circular cross section of the outer sheetmetal of traditional flux-cored wire, under the prerequisite that charge core amount is constant, decrease cross-sectional area, and, it is good that non-circular cross-section compares the ductility of circular cross section flux-cored wire main body in commissure, improves welding quality, improve the smoothness planarization that welding bead is shaping, the flux-cored wire main body that the present invention is more traditional is not easily rolled, and stationarity is good; In addition, the present invention by controlling the thickness of outer sheetmetal, thus avoids because outer sheetmetal is blocked up, and the medicine core caused cannot fully react, and is convenient to medicine core reacts by structure of the present invention.
Flux-cored wire main body comprises a welding wire clamping part, and welding wire clamping part is made up of magnetic.Thus be fixed on the positioning by welding wire clamping part when user welds, can clamping effect be improved by the effect of magnetic.
Flux-cored wire main body also in be provided with a NFC chip.The present invention, by being provided with a NFC chip, being convenient to the terminal devices such as mobile phone and being carried out radio communication with the NFC chip be provided with in flux-cored wire main body and be connected, and understands the parameter information of flux-cored wire.
The manufacture craft of medicine core, comprises and first the material making medicine core being pulverized, and is heated into powder slurry, and in the powder slurry of heat, add the carbon dioxide of high pressure, carbon dioxide gas cognition forms tiny high pressure bubble in powder slurry; Under closed environment, become broken end after cooling, enter in metal level as flux cored filler using broken end.Release pressure after the cooling of powder slurry, powder agglomates can be cracked, becomes broken end but still contain high pressure bubble in broken end.When in welding process, after medicine core melted by heat, gas is released releasing carbon dioxide, forms protection.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a surfacing and repairing flux-cored wire, comprise a flux-cored wire main body, it is characterized in that, described flux-cored wire main body comprises a metal level, medicine core is enclosed with in described metal level, described medicine core includes following element by weight percentage, and C:0.1%-5% ﹑ Mn:0.8%-3%, Si:0.5%-2%, Cr:3%-25%, Mo:1%-4%, W:1%-10%, surplus are Fe.
2. a kind of surfacing and repairing flux-cored wire according to claim 1, it is characterized in that, described medicine core is made up of following element by weight percentage, and C:0.55% ﹑ Mn:2.5%, Si:0.65%, Cr:5.5%, Mo:1.1%, W:1.3%, surplus are Fe.
3. a kind of surfacing and repairing flux-cored wire according to claim 1; it is characterized in that; described medicine in-core comprises carbon dust, ground hematite; generate iron and carbon-dioxide protecting gas under carbon dust and ground hematite high-temperature condition, for generating the carbon dust of carbon-dioxide protecting gas, the mol ratio of ground hematite is 2:3.
4. a kind of surfacing and repairing flux-cored wire according to claim 1, it is characterized in that, described metal level comprises sheetmetal in, an outer sheetmetal, the cross section of described interior sheetmetal and described outer sheetmetal is two concentric circles, described interior sheetmetal and described outer sheetmetal surround the first cavity of an accommodating medicine core, be provided with described medicine core in described first cavity, described interior sheetmetal surrounds one second cavity, is a gas channel with described second cavity.
5. a kind of surfacing and repairing flux-cored wire according to claim 4, it is characterized in that, the outer wall of described flux-cored wire main body is provided with at least three air inlets, described air inlet is by a connection channel and described gas channel UNICOM, and in described at least three air inlets, any two adjacent air inlet spacing are consistent;
Described flux-cored wire main body also comprises an air pump, and described air pump is provided with a gas outlet, and described gas outlet is by pipeline and described air inlet UNICOM, and the external diameter of described pipeline and the internal diameter of described air inlet match;
Described flux-cored wire main body fills protective gas by air pump in described gas channel.
6. a kind of surfacing and repairing flux-cored wire according to claim 5, is characterized in that, is provided with the anti-return film that prevents the reverse circulation of gas in described second cavity, and described anti-return film is positioned at the second cavity inner wall near described air inlet place;
Described anti-return film is provided with an arc convex, and described arc convex has cross cracking;
Described arc convex is towards the circulating direction of described gas channel.
7. a kind of surfacing and repairing flux-cored wire according to claim 4, it is characterized in that, the outer wall of described outer sheetmetal is provided with pit, and described pit is equidistantly arranged at the axis direction of described outer sheetmetal outer wall, and described pit is arranged ringwise in the radial direction of described outer sheetmetal outer wall.
8. a kind of surfacing and repairing flux-cored wire according to claim 4, it is characterized in that, the inwall of described interior sheetmetal is provided with at least three road depressions, and the length direction of described depression is parallel to the length direction of described flux-cored wire main body, the cross section semicircular in shape of described depression or triangle.
9. a kind of surfacing and repairing flux-cored wire according to claim 4, is characterized in that, the cross section of described outer sheetmetal is an ellipse, and the thickness of described outer sheetmetal is not more than 3mm.
10. a kind of surfacing and repairing flux-cored wire according to claim 1, it is characterized in that, the outer wall of described flux-cored wire main body is provided with an antioxidation coating, the thickness of described antioxidation coating is not more than 1mm, and described antioxidation coating is evenly coated on flux-cored wire body outer wall by anti-oxidation reducing agent to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638195.2A CN104551436B (en) | 2014-11-13 | 2014-11-13 | A kind of surfacing and repairing flux-cored wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638195.2A CN104551436B (en) | 2014-11-13 | 2014-11-13 | A kind of surfacing and repairing flux-cored wire |
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| Publication Number | Publication Date |
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| CN104551436A true CN104551436A (en) | 2015-04-29 |
| CN104551436B CN104551436B (en) | 2016-05-18 |
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| CN201410638195.2A Active CN104551436B (en) | 2014-11-13 | 2014-11-13 | A kind of surfacing and repairing flux-cored wire |
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| CN (1) | CN104551436B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719426A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of high-temperature steel flux-cored wire |
| CN110560959A (en) * | 2019-08-06 | 2019-12-13 | 鞍钢附企三炼钢修造总厂 | Impact-resistant, high-temperature-resistant and high-hardness welding wire and manufacturing and using methods thereof |
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| JPS5950990A (en) * | 1982-09-16 | 1984-03-24 | Daido Steel Co Ltd | Gas sealed welding wire and production thereof |
| JPS61154794A (en) * | 1984-12-27 | 1986-07-14 | Kawasaki Steel Corp | Cored wire for non-shielded arc welding |
| CN101386115A (en) * | 2008-10-13 | 2009-03-18 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN101391352A (en) * | 2008-10-15 | 2009-03-25 | 攀钢集团研究院有限公司 | Flux-cored wire for repair cold-rolling support roll operational layer and preparation method thereof |
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| JPS5950990A (en) * | 1982-09-16 | 1984-03-24 | Daido Steel Co Ltd | Gas sealed welding wire and production thereof |
| JPS61154794A (en) * | 1984-12-27 | 1986-07-14 | Kawasaki Steel Corp | Cored wire for non-shielded arc welding |
| CN101386115A (en) * | 2008-10-13 | 2009-03-18 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN101391352A (en) * | 2008-10-15 | 2009-03-25 | 攀钢集团研究院有限公司 | Flux-cored wire for repair cold-rolling support roll operational layer and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719426A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of high-temperature steel flux-cored wire |
| CN110560959A (en) * | 2019-08-06 | 2019-12-13 | 鞍钢附企三炼钢修造总厂 | Impact-resistant, high-temperature-resistant and high-hardness welding wire and manufacturing and using methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104551436B (en) | 2016-05-18 |
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