CN113579562A - Metal fiber type flux-cored wire and preparation method thereof - Google Patents
Metal fiber type flux-cored wire and preparation method thereof Download PDFInfo
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- CN113579562A CN113579562A CN202110847104.6A CN202110847104A CN113579562A CN 113579562 A CN113579562 A CN 113579562A CN 202110847104 A CN202110847104 A CN 202110847104A CN 113579562 A CN113579562 A CN 113579562A
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- 239000000835 fiber Substances 0.000 title claims abstract description 150
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 101
- 239000002184 metal Substances 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 239000000843 powder Substances 0.000 claims abstract description 85
- 239000003814 drug Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 229910052799 carbon Inorganic materials 0.000 claims description 46
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 34
- 229910052750 molybdenum Inorganic materials 0.000 claims description 34
- 239000011733 molybdenum Substances 0.000 claims description 34
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 34
- 229910052720 vanadium Inorganic materials 0.000 claims description 34
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 34
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 19
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 18
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 17
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 17
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 17
- 239000010436 fluorite Substances 0.000 claims description 17
- 239000010439 graphite Substances 0.000 claims description 17
- 229910002804 graphite Inorganic materials 0.000 claims description 17
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 16
- 229910001309 Ferromolybdenum Inorganic materials 0.000 claims description 14
- 229910000628 Ferrovanadium Inorganic materials 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 239000011651 chromium Substances 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 6
- 238000005491 wire drawing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 42
- 238000010891 electric arc Methods 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 230000007704 transition Effects 0.000 description 8
- 229910000861 Mg alloy Inorganic materials 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 238000010622 cold drawing Methods 0.000 description 5
- 239000010960 cold rolled steel Substances 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Images
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
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention discloses a metal fiber type flux-cored wire which comprises a steel sheet layer, wherein the steel sheet layer is wrapped with medicine powder and metal fibers, the metal fibers are uniformly distributed in the medicine powder and are coaxial with the steel sheet layer, the metal fibers in the metal fiber type flux-cored wire are 3-9% by mass, the medicine powder is 10-40% by mass, and the balance is the steel sheet layer. The invention also discloses a preparation method of the metal fiber type flux-cored wire, the metal fiber in the prepared metal fiber type flux-cored wire enables the welding current to be more uniformly distributed on the cross section of the flux-cored wire, the stability of electric arc and the melting uniformity of the welding wire are improved, the metal fiber type flux-cored wire can react with C in situ in the welding metallurgy process to form a carbide hard phase, and the hardness of a welding layer is improved.
Description
Technical Field
The invention belongs to the technical field of welding materials, and relates to a metal fiber type flux-cored wire and a preparation method thereof.
Background
With the progress of science and technology and the requirement of industrial development, a welding procedure is required to be carried out when a large number of products are manufactured, and the quality of welding quality and the selection of welding materials have an inseparable relationship. The welding materials which are most demanded at present are welding rods, welding wires and brazing filler metals, wherein the quantity of the welding wires is very large. The welding wire is used as a filler metal or a metal wire welding material for conducting electricity at the same time, and is used as the filler metal in gas welding and gas shielded arc welding; in submerged arc welding, electroslag welding and other gas metal arc welding, the wire is both a filler metal and a conductive electrode.
The flux-cored wire is also called as a tubular welding wire, the welding wires with different purposes can be designed by adjusting the types and the proportion of powder alloys in the flux-cored layer, the formula is flexible and changeable, the practicability is strong, and the flux-cored wire is widely applied to the field of welding.
At present, the flux-cored wire often has the following problems in the use process: firstly, the flux of the core part of the flux-cored wire is not conductive, so that the electric arc is easy to rotate along the steel sheet around, the stability of the electric arc is poor, and the welding is difficult; secondly, the powder is unevenly distributed on the flux core part due to gravity, and the phenomenon of penetration or welding impermeability occurs during welding.
Disclosure of Invention
The invention aims to provide a metal fiber type flux-cored wire, which solves the problem that the core flux of the existing flux-cored wire is not conductive, so that the stability of an electric arc is poor.
The invention also aims to provide a preparation method of the metal fiber type flux-cored wire.
The first technical scheme adopted by the invention is that the metal fiber type flux-cored wire comprises a steel sheet layer, wherein the steel sheet layer is wrapped with medicine powder and metal fibers, the metal fibers are uniformly distributed in the medicine powder and are coaxial with the steel sheet layer, and the medicine powder comprises, by mass, 20-30% of high-carbon ferrochrome, 0-2% of chromium powder, 0-6% of ferromolybdenum, 0-5% of ferrovanadium, 3-5% of No. 45 ferrosilicon, 0.65-1.25% of high-carbon ferromanganese, 2-6% of magnesium aluminum alloy, 0-1% of graphite, 6-8% of nickel powder, 0-2% of potassium carbonate and 0-5% of fluorite, and the balance of iron powder; the metal fiber is one or more of molybdenum fiber and vanadium fiber.
Wherein, the mass percent of the metal fiber in the metal fiber type flux-cored wire is 3-9%, the mass percent of the medicinal powder is 10-40%, and the rest is a steel sheet layer.
The diameter of the molybdenum fiber is 50-60 μm, and the diameter of the vanadium fiber is 10-50 μm.
The steel skin layer is H08A low-carbon steel cold-rolled steel strip.
The high-carbon ferrochrome in the powder comprises, by mass, not less than 50% of Cr, 4-9% of C, not more than 5% of Si, and the balance Fe.
The high-carbon ferromanganese in the powder comprises, by mass, not less than 76% of Mn, not more than 7% of C, not more than 2.5% of Si, and the balance Fe.
The second technical scheme adopted by the invention is that the preparation method of the metal fiber type flux-cored wire comprises the following steps:
and 5, rolling and closing the groove-shaped steel belt by adopting a flux-cored wire forming machine to form a flux-cored wire blank, drawing and reducing the flux-cored wire blank one by one through a wire drawing die to enable the diameter to reach 1.2mm-2.0mm, and straightening by using a wire drawing machine to obtain the metal fiber type flux-cored wire.
In the step 4, when metal fibers are distributed in the middle of the powder, a charging disc and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the metal fibers with the required size are placed on the charging disc, the trend of the metal fibers is fixed through the wire releasing guide wheel, the metal fibers accurately fall into a U-shaped steel belt, and the metal fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by the U-shaped roller before powder feeding, so that the whole metal fibers bear tension.
The metal fiber is one or more of molybdenum fiber and vanadium fiber.
The mass of the metal fiber accounts for 3-9% of the total mass of the flux-cored wire, the mass percent of the traditional Chinese medicine powder in the flux-cored wire is 10-40%, and the balance is a steel sheet layer.
The metal fiber type flux-cored wire has the beneficial effects that the metal fiber contained in the metal fiber type flux-cored wire enables the welding current to be more uniformly distributed on the cross section of the flux-cored wire, and the stability of electric arc and the uniformity of welding wire melting are improved; the metal fiber type flux-cored wire can react with C in situ to form a carbide hard phase in the welding metallurgy process, and the hardness of a welding layer is improved.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of a metal fiber type flux cored welding wire of the present invention;
fig. 2 is a schematic view of the installation of the payout guide wheel.
In the figure, 1, steel skin layers 1 and 2, metal fibers, 3, medicinal powder, 4, a wire-releasing guide wheel and 5, a fixing plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a preparation method of a metal fiber type flux-cored wire, which comprises the following steps:
the mass percent of Cr in the high-carbon ferrochrome is not less than 50%, the mass percent of C is 4-9%, the mass percent of Si is not more than 5%, and the balance is Fe; the purity of the chromium powder is not less than 95 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 74.0-80.0% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is not less than 76%, the mass percent of C is not more than 7%, the mass percent of Si is not more than 2.5%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is not less than 98%, the purity of the graphite is 94-99%, the purity of the potassium carbonate is not less than 95%, and the purity of CaF in fluorite is not less than 95%2The mass percent of the iron powder is more than 96 percent, and the purity of the iron powder is 99.5 percent.
the metal fibers are distributed in the powder, so that alloy elements are transferred to welding metals, the distribution of welding current on the cross section of the flux-cored wire is more uniform, and the stability of electric arc and the melting uniformity of the flux-cored wire are improved.
When metal fibers are distributed in the middle of the medicinal powder, a charging tray and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the metal fibers with required sizes are placed on the charging tray, the trend of the metal fibers is fixed through the wire releasing guide wheel, the metal fibers accurately fall into a U-shaped steel belt, and the metal fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by a U-shaped roller before powder feeding, so that the metal fibers bear tension integrally;
and 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine to form a flux-cored wire blank, drawing and reducing the flux-cored wire blank one by one through a wire drawing die to enable the diameter to reach 1.2mm-2.0mm, and straightening by using a wire drawing machine to obtain the metal fiber type flux-cored wire, wherein the longitudinal section of the metal fiber type flux-cored wire is shown in figure 1, the outer layer is a steel skin layer 1, the steel skin layer 1 is internally wrapped with medicinal powder 3 and metal fibers 2, and the metal fibers 2 are uniformly distributed in the medicinal powder 3 and are coaxial with the steel skin layer 1.
The function of the high-chromium cast iron in the flux core is to provide transition alloy elements for welding metal; the role of the metallic chromium is to provide a transition alloy element to the weld metal; the ferrovanadium has the functions of providing transition alloy elements for welding metal, refining crystal grains and strengthening and toughening the welding metal; the ferrosilicon is used for providing transition alloy elements for welding metal and deoxidizing; the high-carbon ferromanganese has the functions of providing transition alloy elements for welding metal and deoxidizing; the aluminum-magnesium alloy has the functions of deoxidation and denitrification; the ferromolybdenum serves to provide a transition alloy element to the weld metal; the function of the metal nickel is that the welding metal provides a transition alloy element; the graphite is used for transition C to surfacing metal, deoxidizing to form protective atmosphere in the welding process, and forming carbide hard phase with transition metal; the iron powder has the functions of improving the deposition speed of the flux-cored wire and adjusting the components of the surfacing metal to form welding metal; fluorite is used for adjusting the property of slag in the welding process and improving the weld forming; the potassium carbonate has the function of stabilizing the arc and improving the welding process performance.
Example 1
The molybdenum fiber flux-cored wire is prepared by the following specific preparation process:
the high-carbon ferrochrome comprises 60% of Cr, 5% of C, 2% of Si and the balance of Fe by mass; the purity of the chromium powder is 97 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 78% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is 80%, the mass percent of C is 4%, the mass percent of Si is 1%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is 98 percent, the purity of the graphite is 96 percent, the purity of the potassium carbonate is 95 percent, and the CaF in the fluorite2The mass percent of the components is 98 percent, and the balance is impurities; the purity of the iron powder is 99.5%.
When molybdenum fibers are distributed in the middle of the medicinal powder, a charging tray and a wire unwinding guide wheel are arranged at the front end of a U-shaped roller, referring to fig. 2, fig. 2 is an installation schematic diagram of the wire unwinding guide wheel, and a wire unwinding guide wheel 4 is horizontally arranged on a fixed plate 5 and is vertical to the fixed plate 5; molybdenum fibers are placed on the charging tray, the trend of the molybdenum fibers is fixed through the wire-releasing guide wheel, the molybdenum fibers accurately fall into the U-shaped steel strip, and before powder feeding, the molybdenum fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel strip through a U-shaped roller, so that the molybdenum fibers bear tension integrally.
And 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine, reducing the diameter of the groove-shaped steel belt to 5.0mm by cold rolling, drawing and reducing the flux-cored wire blank by using a drawing die for 4.0mm, 3.2mm, 2.4mm, 1.8mm, 1.5mm and 1.3mm passes through the flux-cored wire blank, finally enabling the diameter of the flux-cored wire blank to reach 1.2mm, straightening by using a drawing machine, and coiling into a disc to obtain the molybdenum fiber flux-cored wire.
Example 2
The vanadium fiber flux-cored wire is prepared by the following specific preparation process:
the high-carbon ferrochrome comprises 70% by mass of Cr, 6% by mass of C, 3% by mass of Si and the balance of Fe; the purity of the chromium powder is 97 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 75% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is 82%, the mass percent of C is 5%, the mass percent of Si is 1.5%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is 98 percent, the purity of the graphite is 95 percent, the purity of the potassium carbonate is 96 percent, and the CaF in the fluorite2The mass percent of the components is 98 percent, and the balance is impurities; the purity of the iron powder is 99.5%.
When vanadium fibers are distributed in the middle of the medicinal powder, a charging tray and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the vanadium fibers are placed on the charging tray, the trend of the vanadium fibers is fixed through the wire releasing guide wheel, the vanadium fibers accurately fall into a U-shaped steel belt, and the vanadium fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by a U-shaped roller before powder feeding, so that the vanadium fibers are subjected to tension integrally.
And 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine, reducing the diameter of the groove-shaped steel belt to 5.0mm by cold rolling, drawing and reducing the flux-cored wire blank by 4.0mm, 3.2mm, 2.4mm, 1.8mm and 1.6mm passes by using a drawing die, finally enabling the diameter of the flux-cored wire blank to reach 1.5mm, straightening by using a drawing machine, and coiling into a disc to obtain the vanadium fiber flux-cored wire.
Example 3
The preparation method of the molybdenum fiber and vanadium fiber mixed flux-cored wire comprises the following specific preparation processes:
the mass percent of Cr in the high-carbon ferrochrome is 55 percent, the mass percent of C is 8 percent, the mass percent of Si is 2 percent, and the balance is Fe; the purity of the chromium powder is 97 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 78% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is 80%, the mass percent of C is 4%, the mass percent of Si is 1%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is 98%, the purity of the graphite is 96%, and the purity of the potassium carbonate is 95% of CaF in fluorite2The mass percent of the components is 98 percent, and the balance is impurities; the purity of the iron powder is 99.5%.
When metal fibers are distributed in the middle of the powder, a charging tray and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the metal fibers are placed on the charging tray, the trend of the metal fibers is fixed through the wire releasing guide wheel, the metal fibers accurately fall into a U-shaped steel belt, and the metal fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by a U-shaped roller before powder feeding, so that the whole metal fibers bear tension.
And 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine, reducing the diameter of the groove-shaped steel belt to 5.0mm by cold rolling, drawing and reducing the flux-cored wire blank by 4.0mm, 3.2mm, 2.4mm, 1.8mm, 1.5mm and 1.3mm passes by using a drawing die, finally enabling the diameter of the flux-cored wire blank to reach 1.2mm, straightening by using a drawing machine, and coiling into a disc to obtain the molybdenum fiber and vanadium fiber mixed flux-cored wire.
Example 4
The molybdenum fiber flux-cored wire is prepared by the following specific preparation process:
the high-carbon ferrochrome comprises 60% of Cr, 5% of C, 2% of Si and the balance of Fe by mass; the purity of the chromium powder is 97 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 78% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is 80%, the mass percent of C is 4%, the mass percent of Si is 1%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is 98 percent, the purity of the graphite is 96 percent, the purity of the potassium carbonate is 95 percent, and the CaF in the fluorite2The mass percent of the components is 98 percent, and the balance is impurities; the purity of the iron powder is 99.5%.
When molybdenum fibers are distributed in the middle of the powder, a loading disc and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the molybdenum fibers are placed on the loading disc, the trend of the molybdenum fibers is fixed through the wire releasing guide wheel, the molybdenum fibers accurately fall into a U-shaped steel belt, and the molybdenum fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by a U-shaped roller before powder feeding, so that the whole molybdenum fibers bear tension.
And 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine, reducing the diameter of the groove-shaped steel belt to 5.0mm by cold rolling, drawing and reducing the flux-cored wire blank by using a drawing die for 4.0mm, 3.2mm, 2.4mm, 1.8mm, 1.5mm and 1.3mm passes through the flux-cored wire blank, finally enabling the diameter of the flux-cored wire blank to reach 1.2mm, straightening by using a drawing machine, and coiling into a disc to obtain the molybdenum fiber flux-cored wire.
Example 5
The vanadium fiber flux-cored wire is prepared by the following specific preparation process:
the high-carbon ferrochrome comprises 70% by mass of Cr, 6% by mass of C, 3% by mass of Si and the balance of Fe; the purity of the chromium powder is 97 percent; the ferromolybdenum contains 50% of Mo, 3% of Si and the balance of Fe; the ferrovanadium contains 50% of V, 0.2% of C, 2% of Si, 0.8% of Al and the balance of Fe; the 45# ferrosilicon contains 75% of Si, 0.1% of C and the balance of Fe; in the high-carbon ferromanganese, the mass percent of Mn is 82%, the mass percent of C is 5%, the mass percent of Si is 1.5%, and the balance is Fe; in the aluminum-magnesium alloy, the mass ratio of aluminum to magnesium is 3: 2; the purity of the nickel powder is 98 percent, the purity of the graphite is 95 percent, the purity of the potassium carbonate is 96 percent, and the CaF in the fluorite2The mass percent of the components is 98 percent, and the balance is impurities; the purity of the iron powder is 99.5%.
When vanadium fibers are distributed in the middle of the medicinal powder, a charging tray and a wire releasing guide wheel are arranged at the front end of a U-shaped roller, the vanadium fibers are placed on the charging tray, the trend of the vanadium fibers is fixed through the wire releasing guide wheel, the vanadium fibers accurately fall into a U-shaped steel belt, and the vanadium fibers are pressed at the bottom of a U-shaped opening of the U-shaped steel belt by a U-shaped roller before powder feeding, so that the vanadium fibers are subjected to tension integrally.
And 5, rolling and closing the groove-shaped steel belt by using a flux-cored wire forming machine, reducing the diameter of the groove-shaped steel belt to 5.0mm by cold rolling, drawing and reducing the flux-cored wire blank by 4.0mm, 3.2mm, 2.4mm, 1.8mm and 1.6mm passes by using a drawing die, finally enabling the diameter of the flux-cored wire blank to reach 1.5mm, straightening by using a drawing machine, and coiling into a disc to obtain the vanadium fiber flux-cored wire.
Claims (10)
1. The metal fiber type flux-cored wire is characterized by comprising a steel sheet layer, wherein the steel sheet layer is wrapped with medicine powder and metal fibers, the metal fibers are uniformly distributed in the medicine powder and are coaxial with the steel sheet layer, and the medicine powder comprises, by mass, 20-30% of high-carbon ferrochrome, 0-2% of chromium powder, 0-6% of ferromolybdenum, 0-5% of ferrovanadium, 3-5% of 45# ferrosilicon, 0.65-1.25% of high-carbon ferromanganese, 2-6% of magnesium aluminum alloy, 0-1% of graphite, 6-8% of nickel powder, 0-2% of potassium carbonate, 0-5% of fluorite and the balance of iron powder; the metal fiber is one or more of molybdenum fiber and vanadium fiber.
2. The metal fiber type flux-cored wire of claim 1, wherein the metal fiber type flux-cored wire comprises 3-9% by mass of metal fibers, 10-40% by mass of powder and the balance of a steel sheath layer.
3. The metal fiber type flux-cored wire as claimed in claim 1, wherein the diameter of the molybdenum fiber is 50 to 60 μm, and the diameter of the vanadium fiber is 10 to 50 μm.
4. The metal fiber type flux cored wire of claim 1, wherein the steel sheath is H08A cold rolled low carbon steel strip.
5. The metal fiber type flux-cored wire of claim 1, wherein the high carbon ferrochrome in the powder comprises, by mass, not less than 50% of Cr, 4-9% of C, not more than 5% of Si, and the balance Fe.
6. The metal fiber type flux-cored wire as claimed in claim 1, wherein the high-carbon ferromanganese contained in the powder comprises, in mass%, Mn of not less than 76%, C of not more than 7%, Si of not more than 2.5%, and the balance Fe.
7. The preparation method of the metal fiber type flux-cored wire is characterized by comprising the following steps of:
step 1, weighing the following powder components in percentage by mass: 20-30% of high-carbon ferrochrome, 0-2% of chromium powder, 0-6% of ferromolybdenum, 0-5% of ferrovanadium, 3-5% of 45# ferrosilicon, 0.65-1.25% of high-carbon ferromanganese, 2-6% of magnesium aluminum alloy, 0-1% of graphite, 6-8% of nickel powder, 0-2% of potassium carbonate and 0-5% of fluorite, and the balance of iron powder, wherein the sum of the mass percentages of the components is 100%;
step 2, uniformly mixing all the powder components weighed in the step 1 and drying to obtain powder;
step 3, selecting a low-carbon steel strip with the wall thickness of 0.4-1.0 mm and the width of 20-35 mm, and rolling the low-carbon steel strip into a groove-shaped steel strip with a U-shaped cross section along the length direction by using a flux-cored wire forming machine;
step 4, adding the medicinal powder prepared in the step 2 into a groove-shaped steel belt, and uniformly distributing metal fibers with the same length as the steel belt in the middle of the medicinal powder along the length direction of the steel belt;
and 5, rolling and closing the groove-shaped steel belt by adopting a flux-cored wire forming machine to form a flux-cored wire blank, drawing and reducing the flux-cored wire blank one by one through a wire drawing die to enable the diameter to reach 1.2mm-2.0mm, and straightening by using a wire drawing machine to obtain the metal fiber type flux-cored wire.
8. The method of claim 7, wherein in the step 4, when the metal fibers are laid in the middle of the powder, a loading tray and a wire-releasing guide wheel are provided at the front end of the U-shaped roller, the metal fibers with the required size are placed on the loading tray, the orientation of the metal fibers is fixed by the wire-releasing guide wheel, so that the metal fibers are accurately dropped into the U-shaped steel strip, and the metal fibers are pressed against the bottom of the U-shaped opening of the U-shaped steel strip by the U-shaped roller before the powder feeding, so that the whole metal fibers are under tension.
9. The method of claim 8, wherein the metal fiber is one or more of molybdenum fiber and vanadium fiber.
10. The method for preparing the metal fiber type flux-cored wire according to claim 8, wherein the mass of the metal fiber accounts for 3-9% of the total mass of the flux-cored wire, the mass percentage of the powder in the flux-cored wire is 10-40%, and the balance is a steel skin layer.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907518A (en) * | 1959-06-25 | 1962-10-03 | Clevite Corp | Metal composites |
| CN1143689A (en) * | 1996-07-02 | 1997-02-26 | 河北工业大学 | Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method |
| CN101497152A (en) * | 2009-02-26 | 2009-08-05 | 山东大学 | Large-diameter flux-cored wire for revolving body or wear-resistant composite board overlaying welding |
| CN102658439A (en) * | 2012-05-15 | 2012-09-12 | 力创(台山)电子科技有限公司 | Brazing aluminium soldering ring for welding aluminum or aluminum alloy product and manufacture method of brazing aluminium soldering ring |
| CN103612032A (en) * | 2013-11-08 | 2014-03-05 | 上海龙烁焊材有限公司 | Sheath-coated flux-cored brazing wire and production method thereof |
| CN105537794A (en) * | 2016-02-05 | 2016-05-04 | 合肥美菱股份有限公司 | Flux-cored soldering ring |
| CN206153788U (en) * | 2016-09-07 | 2017-05-10 | 常州市正阳焊接材料有限公司 | Real core welding wire of high tenacity gas protection copper facing |
| CN107649798A (en) * | 2017-10-20 | 2018-02-02 | 西安理工大学 | 25Cr2Ni4MoV steel metal flux-cored wire and preparation method |
-
2021
- 2021-07-26 CN CN202110847104.6A patent/CN113579562A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907518A (en) * | 1959-06-25 | 1962-10-03 | Clevite Corp | Metal composites |
| CN1143689A (en) * | 1996-07-02 | 1997-02-26 | 河北工业大学 | Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method |
| CN101497152A (en) * | 2009-02-26 | 2009-08-05 | 山东大学 | Large-diameter flux-cored wire for revolving body or wear-resistant composite board overlaying welding |
| CN102658439A (en) * | 2012-05-15 | 2012-09-12 | 力创(台山)电子科技有限公司 | Brazing aluminium soldering ring for welding aluminum or aluminum alloy product and manufacture method of brazing aluminium soldering ring |
| CN103612032A (en) * | 2013-11-08 | 2014-03-05 | 上海龙烁焊材有限公司 | Sheath-coated flux-cored brazing wire and production method thereof |
| CN105537794A (en) * | 2016-02-05 | 2016-05-04 | 合肥美菱股份有限公司 | Flux-cored soldering ring |
| CN206153788U (en) * | 2016-09-07 | 2017-05-10 | 常州市正阳焊接材料有限公司 | Real core welding wire of high tenacity gas protection copper facing |
| CN107649798A (en) * | 2017-10-20 | 2018-02-02 | 西安理工大学 | 25Cr2Ni4MoV steel metal flux-cored wire and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 赵春燕;刘剑威;李颜文;许可贵;: "大面积耐磨复层钢板成套制造技术", 焊接, no. 07, 25 July 2015 (2015-07-25) * |
| 高兴林: "《焊接手册》", 31 October 2001, 湖南科学技术出版社, pages: 319 - 320 * |
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