CN110711969A - Arc spraying flux-cored wire for heat-insulating coating and preparation method thereof - Google Patents
Arc spraying flux-cored wire for heat-insulating coating and preparation method thereof Download PDFInfo
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- CN110711969A CN110711969A CN201910955538.0A CN201910955538A CN110711969A CN 110711969 A CN110711969 A CN 110711969A CN 201910955538 A CN201910955538 A CN 201910955538A CN 110711969 A CN110711969 A CN 110711969A
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- powder
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- cored wire
- arc spraying
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3602—Carbonates, basic oxides or hydroxides
-
- 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
Abstract
An electric arc spraying flux-cored wire for a heat-insulating coating and a preparation method thereof are disclosed, wherein an aluminum strip sheath is coated with alloy powder, and the electric arc spraying flux-cored wire is characterized in that the alloy powder comprises the following components in parts by weight: 12.0-15.0 parts of micro-carbon ferrochromium powder, 10.0-15.0 parts of high-carbon ferromanganese powder, 3.0-5.0 parts of ferrosilicon powder, 10.0-15.0 parts of ferromolybdenum powder, 30.0-40.0 parts of nickel powder, 4.0-6.0 parts of magnesium-aluminum powder, 12.0-18.0 parts of reduced iron powder, 5.0-7.0 parts of magnesium-aluminum powder, 2.0-3.0 parts of rutile powder, 1.0-2.0 parts of feldspar powder, 2.0-3.0 parts of fluorite powder and 0.2-0.4 part of sodium fluosilicate, wherein the grain size of the alloy powder is 60-160 meshes. The invention has the beneficial effects that: (1) resin coatings are replaced, and arc spraying is carried out for movable operation, so that the repair efficiency of the flight deck is improved; (2) the service life of the coating is prolonged, and the operational capacity of the flight deck is improved; (3) getting rid of the dependence on imported coating raw materials.
Description
Technical Field
The invention relates to the field of material processing surface modification engineering, in particular to an electric arc spraying flux-cored wire for a heat-insulating coating and a preparation method thereof.
Background
The flight deck is the largest deck on an aircraft carrier, and the coating on the surface of the deck plays a role in protecting the deck so as to ensure the safety of taking off, landing and parking of the aircraft. The deck coating is required to have certain performances such as corrosion resistance, high wear resistance, high temperature resistance and the like in severe environments with high salt temperature day and night temperature difference change in sea, high-temperature tail flames when an airplane takes off, walking and taking off and landing of the airplane and the like.
At present, a deck coating is usually a resin coating, and the resin coating is difficult to repair, high in cost and difficult to form, so that the deck repairing efficiency is reduced. The arc spraying flux-cored wire for the low-cost heat insulation coating and the preparation method thereof provided by the invention have the advantages that the arc spraying coating prepared by the flux-cored wire has good heat insulation effect, wear resistance and corrosion resistance, and can meet the performance requirements of the flux-cored wire imported from abroad.
Disclosure of Invention
The invention provides an electric arc spraying flux-cored wire for a low-cost heat-insulating coating and a preparation method thereof, wherein (1) a resin coating is replaced, and electric arc spraying is movable for operation, so that the repair efficiency of a flight deck is improved; (2) the service life of the coating is prolonged, and the operational capacity of the flight deck is improved; (3) getting rid of the dependence on imported coating raw materials.
In order to achieve the above purpose, the invention is realized by the following technical scheme.
The arc spraying flux-cored wire for the thermal insulation coating is characterized in that the alloy powder is coated on the outer skin of an aluminum strip and comprises the following components in parts by weight: 12.0-15.0 parts of micro-carbon ferrochromium powder, 10.0-15.0 parts of high-carbon ferromanganese powder, 3.0-5.0 parts of ferrosilicon powder, 10.0-15.0 parts of ferromolybdenum powder, 30.0-40.0 parts of nickel powder, 4.0-6.0 parts of magnesium-aluminum powder, 12.0-18.0 parts of reduced iron powder, 5.0-7.0 parts of magnesium-aluminum powder, 2.0-3.0 parts of rutile powder, 1.0-2.0 parts of feldspar powder, 2.0-3.0 parts of fluorite powder and 0.2-0.4 part of sodium fluosilicate, wherein the grain size of the alloy powder is 60-160 meshes.
The preparation method of the arc spraying flux-cored wire for the thermal insulation coating comprises the following steps:
(1) proportioning the components according to the weight parts of the flux-cored wire of the design components;
(2) the filling rate of the flux-cored wire is 30-35%;
(3) mixing rutile powder, feldspar powder and fluorite powder, heating to the temperature of 600-900 ℃, and preserving heat for 3 hours; mixing micro-carbon ferrochromium powder, high-carbon ferromanganese powder, ferrosilicon powder, ferromolybdenum powder, nickel powder, magnesium-aluminum powder, reduced iron powder, magnesium-stone powder and sodium fluosilicate, heating to 400 ℃ at 200 ℃, and preserving heat for 2-3 hours; then mixing the two parts of alloy powder, heating to 200-400 ℃, preserving the heat for 2-3 hours, and then cooling to room temperature; cleaning a low-carbon cold-rolled steel strip, drying the low-carbon cold-rolled steel strip at 50-100 ℃, rolling the low-carbon cold-rolled steel strip into a U-shaped groove, and adding the treated alloy powder into the U-shaped groove; closing the U-shaped groove, closing the U-shaped groove on a forming machine to form an O shape, wherein the speed of the forming machine is 65-80 m/min, and after a welding wire head is pointed by a pointing machine through continuous drawing, sequentially passing through all wire drawing dies and winding all wire drawing tanks. Lubricating powder is added into the wire drawing die box, the cooling water path is guaranteed to be smooth, the starting speed of a wire drawing machine is 0.3-0.5 m/s, the linkage and inching speeds are 0.15-0.30 m/s, and finally the diameter is reduced by 1.6mm to obtain the flux-cored wire.
The application of the arc spraying flux-cored wire for the thermal insulation coating comprises the following contents:
(1) the spraying process parameters of the explosive core welding wire for electric arc spraying to the deck are as follows: the voltage is 35-38V; the current is 400-420A; the spraying distance was 140mm and the compressed air pressure was 1.3 MPa.
(2) Carrying out sand blasting and coarsening treatment on the surface of the matrix before electric arc spraying;
(3) the thickness of each spraying is not more than 80 mu m in the electric arc spraying process, and the spraying is carried out for multiple times until the thickness is 3.5 mm.
Compared with the prior art, the invention has the beneficial effects that: the electric arc spraying coating prepared by the flux-cored wire has good heat insulation effect, wear resistance and corrosion resistance, and can meet the performance requirements of the flux-cored wire imported from abroad.
Drawings
FIG. 1 microstructure of a thermal spray coating of a welding wire prepared in example 1;
FIG. 2 microstructure of a thermal spray coating of a welding wire prepared in example 2;
FIG. 3 microstructure of a thermal spray coating of a welding wire prepared in example 3;
FIG. 4 microstructure of a thermal spray coating of a welding wire prepared in example 4;
FIG. 5 microstructure of a thermal spray coating of welding wire prepared in example 5.
As can be seen from the microstructure images of the thermal spray coatings of the various examples, no holes appear at the joints of the coatings and the substrate, and the coatings are compact.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings.
Table 1 is a chart of the thermal insulation effect of the deck at the time of takeoff of the simulated aircraft.
Table 1 shows that the thermal insulation effect of the deck during takeoff of the airplane is simulated, the arc spraying coating is continuously heated for 30s by using propane flame at 1000 ℃, and the temperature difference between the coating and the surface and the back surface of the deck is measured, so that the embodiments 1-5 have good instantaneous thermal insulation effect.
Five specific examples are provided below to describe the specific technical content of the present invention in detail.
Example 1
(1) The invention provides a preparation method of an electric arc spraying flux-cored wire for a heat-insulating coating, which is characterized in that an aluminum strip sheath is wrapped with alloy powder, and the alloy powder comprises the following components in parts by weight: 12.0 parts of micro-carbon ferrochrome powder, 10.0 parts of high-carbon ferromanganese powder, 4.0 parts of ferrosilicon powder, 14.0 parts of ferromolybdenum powder, 32.0 parts of nickel powder, 5.0 parts of aluminum magnesium powder, 12.0 parts of reduced iron powder, 5.2 parts of magnesium stone powder, 2.3 parts of rutile powder, 1.0 part of feldspar powder, 2.3 parts of fluorite powder and 0.2 part of sodium fluosilicate, wherein the grain size of the alloy powder is 60 meshes;
(2) proportioning alloy powder according to design components;
(3) the filling rate of the flux-cored wire is 30%.
Example 2
(1) The invention provides a preparation method of an electric arc spraying flux-cored wire for a heat-insulating coating, which is characterized in that an aluminum strip sheath is wrapped with alloy powder, and the alloy powder comprises the following components in parts by weight: 15.0 parts of micro-carbon ferrochrome powder, 10.0 parts of high-carbon ferromanganese powder, 3.0 parts of ferrosilicon powder, 11.0 parts of ferromolybdenum powder, 30.5 parts of nickel powder, 4.2 parts of aluminum magnesium powder, 14.0 parts of reduced iron powder, 6.0 parts of magnesium stone powder, 2.5 parts of rutile powder, 1.3 parts of feldspar powder, 2.3 parts of fluorite powder and 0.2 part of sodium fluosilicate, wherein the grain size of the alloy powder is 80 meshes;
(2) proportioning alloy powder according to design components;
(3) the filling rate of the flux-cored wire is 32%.
Example 3
(1) The invention provides a preparation method of an electric arc spraying flux-cored wire for a heat-insulating coating, which is characterized in that an aluminum strip sheath is wrapped with alloy powder, and the alloy powder comprises the following components in parts by weight: 13.0 parts of micro-carbon ferrochrome powder, 15.0 parts of high-carbon ferromanganese powder, 3.5 parts of ferrosilicon powder, 10.5 parts of ferromolybdenum powder, 30.0 parts of nickel powder, 5.0 parts of aluminum magnesium powder, 12.0 parts of reduced iron powder, 5.0 parts of magnesium stone powder, 2.3 parts of rutile powder, 1.2 parts of feldspar powder, 2.2 parts of fluorite powder and 0.3 part of sodium fluosilicate, wherein the grain size of the alloy powder is 100 meshes;
(2) proportioning alloy powder according to design components;
(3) the filling rate of the flux-cored wire is 35%.
Example 4
(1) The invention provides a preparation method of an electric arc spraying flux-cored wire for a heat-insulating coating, which is characterized in that an aluminum strip sheath is wrapped with alloy powder, and the alloy powder comprises the following components in parts by weight: 14.0 parts of micro-carbon ferrochrome powder, 15.0 parts of high-carbon ferromanganese powder, 3.3 parts of ferrosilicon powder, 12.0 parts of ferromolybdenum powder, 40.0 parts of nickel powder, 4.0 parts of aluminum magnesium powder, 13.0 parts of reduced iron powder, 5.5 parts of magnesium stone powder, 3.0 parts of rutile powder, 1.5 parts of feldspar powder, 2.5 parts of fluorite powder and 0.2 part of sodium fluosilicate, wherein the grain size of the alloy powder is 160 meshes;
(2) proportioning alloy powder according to design components;
(3) the filling rate of the flux-cored wire is 33%.
Example 5
(1) The invention provides a preparation method of an electric arc spraying flux-cored wire for a heat-insulating coating, which is characterized in that an aluminum strip sheath is wrapped with alloy powder, and the alloy powder comprises the following components in parts by weight: 12.0 parts of micro-carbon ferrochrome powder, 14.0 parts of high-carbon ferromanganese powder, 4.0 parts of ferrosilicon powder, 11.0 parts of ferromolybdenum powder, 30.0 parts of nickel powder, 5.0 parts of aluminum magnesium powder, 13.0 parts of reduced iron powder, 5.0 parts of magnesium stone powder, 2.0 parts of rutile powder, 1.5 parts of feldspar powder, 2.2 parts of fluorite powder and 0.3 part of sodium fluosilicate, wherein the grain size of the alloy powder is 150 meshes;
(2) proportioning alloy powder according to design components;
(3) the filling rate of the flux-cored wire is 34%.
In the five embodiments, the preparation method of the arc spraying flux-cored wire for the thermal insulation coating comprises the following steps:
(1) proportioning the components according to the weight parts of the flux-cored wire of the design components;
(2) the filling rate of the flux-cored wire is 30-35%;
(3) mixing rutile powder, feldspar powder and fluorite powder, heating to 800 ℃, and preserving heat for 3 hours; mixing micro-carbon ferrochromium powder, high-carbon ferromanganese powder, ferrosilicon powder, ferromolybdenum powder, nickel powder, magnesium-aluminum powder, reduced iron powder, magnesium-stone powder and sodium fluosilicate, heating to 300 ℃, and preserving heat for 2 hours; then mixing the two parts of alloy powder, heating to 300 ℃, preserving the heat for 2 hours, and then cooling in air to room temperature; cleaning a low-carbon cold-rolled steel strip, drying the low-carbon cold-rolled steel strip at 100 ℃, rolling the low-carbon cold-rolled steel strip into a U-shaped groove, and adding the treated alloy powder into the U-shaped groove; closing the U-shaped groove, closing the U-shaped groove on a forming machine to form an O shape, wherein the speed of the forming machine is 65-80 m/min, and after a welding wire head is pointed by a pointing machine through continuous drawing, sequentially passing through all wire drawing dies and winding all wire drawing tanks. Lubricating powder is added into the wire drawing die box, the cooling water path is guaranteed to be smooth, the starting speed of a wire drawing machine is 0.3-0.5 m/s, the linkage and inching speeds are 0.15-0.30 m/s, and finally the diameter is reduced by 1.6mm to obtain the flux-cored wire.
The application of the arc spraying flux-cored wire for the thermal insulation coating comprises the following contents:
(1) the spraying process parameters of the explosive core welding wire for electric arc spraying to the deck are as follows: the voltage is 35-38V; the current is 400-420A; the spraying distance was 140mm and the compressed air pressure was 1.3 MPa.
(2) Carrying out sand blasting and coarsening treatment on the surface of the matrix before electric arc spraying;
(3) the thickness of each spraying is not more than 80 mu m in the electric arc spraying process, and the spraying is carried out for multiple times until the thickness is 3.5 mm.
Claims (3)
1. The arc spraying flux-cored wire for the thermal insulation coating is characterized in that the alloy powder is coated on the outer skin of an aluminum strip and comprises the following components in parts by weight: 12.0-15.0 parts of micro-carbon ferrochromium powder, 10.0-15.0 parts of high-carbon ferromanganese powder, 3.0-5.0 parts of ferrosilicon powder, 10.0-15.0 parts of ferromolybdenum powder, 30.0-40.0 parts of nickel powder, 4.0-6.0 parts of magnesium-aluminum powder, 12.0-18.0 parts of reduced iron powder, 5.0-7.0 parts of magnesium-aluminum powder, 2.0-3.0 parts of rutile powder, 1.0-2.0 parts of feldspar powder, 2.0-3.0 parts of fluorite powder and 0.2-0.4 part of sodium fluosilicate, wherein the grain size of the alloy powder is 60-160 meshes.
2. The method for preparing the arc-sprayed flux-cored wire for the thermal barrier coating according to claim 1, which is characterized by comprising the following steps of:
(1) proportioning the components according to the weight parts of the flux-cored wire of the design components;
(2) the filling rate of the flux-cored wire is 30-35%;
(3) mixing rutile powder, feldspar powder and fluorite powder, heating to the temperature of 600-900 ℃, and preserving heat for 3 hours; mixing micro-carbon ferrochromium powder, high-carbon ferromanganese powder, ferrosilicon powder, ferromolybdenum powder, nickel powder, magnesium-aluminum powder, reduced iron powder, magnesium-stone powder and sodium fluosilicate, heating to 400 ℃ at 200 ℃, and preserving heat for 2-3 hours; then mixing the two parts of alloy powder, heating to 200-400 ℃, preserving the heat for 2-3 hours, and then cooling to room temperature; cleaning a low-carbon cold-rolled steel strip, drying the low-carbon cold-rolled steel strip at 50-100 ℃, rolling the low-carbon cold-rolled steel strip into a U-shaped groove, and adding the treated alloy powder into the U-shaped groove; closing the U-shaped groove, closing the U-shaped groove on a forming machine to form an O shape, wherein the speed of the forming machine is 65-80 m/min, and after a welding wire head is pointed by a pointing machine through continuous drawing, sequentially passing through all wire drawing dies and winding all wire drawing tanks; the starting speed of the wire drawing machine is 0.3-0.5 m/s, the linkage and inching speeds are 0.15-0.30 m/s, and finally the diameter is reduced by 1.6mm to obtain the flux-cored wire.
3. Use of an arc sprayed flux cored welding wire for thermal barrier coatings according to claim 1, comprising:
(1) the spraying process parameters of the explosive core welding wire for electric arc spraying to the deck are as follows: the voltage is 35-38V; the current is 400-420A; the spraying distance was 140mm and the compressed air pressure was 1.3 MPa.
(2) Carrying out sand blasting and coarsening treatment on the surface of the matrix before electric arc spraying;
(3) the thickness of each spraying is not more than 80 mu m in the electric arc spraying process, and the spraying is carried out for multiple times until the thickness is 3.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955538.0A CN110711969A (en) | 2019-10-09 | 2019-10-09 | Arc spraying flux-cored wire for heat-insulating coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910955538.0A CN110711969A (en) | 2019-10-09 | 2019-10-09 | Arc spraying flux-cored wire for heat-insulating coating and preparation method thereof |
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| CN110711969A true CN110711969A (en) | 2020-01-21 |
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| CN201910955538.0A Pending CN110711969A (en) | 2019-10-09 | 2019-10-09 | Arc spraying flux-cored wire for heat-insulating coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378473A (en) * | 2021-12-22 | 2022-04-22 | 江苏沃盾耐磨新材料有限公司 | High-temperature-resistant and wear-resistant welding wire and preparation method thereof |
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2019
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| CN114378473A (en) * | 2021-12-22 | 2022-04-22 | 江苏沃盾耐磨新材料有限公司 | High-temperature-resistant and wear-resistant welding wire and preparation method thereof |
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Application publication date: 20200121 |