CN113414518A - Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof - Google Patents
Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof Download PDFInfo
- Publication number
- CN113414518A CN113414518A CN202110643369.4A CN202110643369A CN113414518A CN 113414518 A CN113414518 A CN 113414518A CN 202110643369 A CN202110643369 A CN 202110643369A CN 113414518 A CN113414518 A CN 113414518A
- Authority
- CN
- China
- Prior art keywords
- powder
- percent
- manganese
- cored wire
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000617 Mangalloy Inorganic materials 0.000 title claims abstract description 36
- 239000000428 dust Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 104
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 100
- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 66
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 45
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 33
- 239000010436 fluorite Substances 0.000 claims abstract description 33
- 229910001309 Ferromolybdenum Inorganic materials 0.000 claims abstract description 30
- 229910000628 Ferrovanadium Inorganic materials 0.000 claims abstract description 30
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 30
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007873 sieving Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 25
- 239000011572 manganese Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 39
- 239000000779 smoke Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000004579 marble Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical group [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B23K35/3026—Mn 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof, wherein the flux-cored wire comprises the following components in percentage by weight: titanium dioxide of 17-22 percent, ferrovanadium powder of 1-3 percent, chromium powder of 3-5 percent, manganese powder of 60-70 percent, fluorite powder of 5-8 percent and ferromolybdenum of 2-4 percent, respectively sieving the raw materials by powder of each component, separately baking the sieved powder at high and low temperatures according to different characteristics, mixing the dried components according to corresponding mass percent, and rolling and molding the U-shaped steel belt by a molding machine to obtain the finished product of the high manganese steel flux-cored wire, the low-dust multipurpose high-manganese steel flux-cored wire and the preparation process thereof can not only weld and repair railway turnouts, but also be used for butt joint of various high-strength steels, the method has the advantages of greatly reducing welding smoke dust, along with high weld metal strength, good weld metal toughness, unchanged hardening and wear resistance after deformation and the like of the high manganese steel material, and increasing the overall strength, forming effect and practicability.
Description
Technical Field
The invention relates to the technical field of magnesium plates, in particular to a low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof.
Background
The high manganese steel is also called high manganese austenitic steel, has no magnetism and good toughness, and has excellent wear resistance because the surface of the high manganese steel is rapidly hardened under large impact or extrusion. The working environment of parts made of high manganese steel, such as tracks and gears of a bulldozer, hammers, jaw plates and rollers of a crusher is very severe, the damage amount is very large, the parts are generally repaired by high manganese steel welding rods D256, D276 and D266, when the parts are repaired by the welding rods, cracks are easily generated on a welding layer and a heat affected zone, and the wear resistance degree cannot meet higher requirements.
However, most of high manganese steel flux-cored wires cannot meet the repair welding requirements of railway turnouts, strong yellow smoke is generated during welding, and welding smoke generated by other welding materials is generally white and gray. The main poison in the yellow smoke is manganese, and the operator can be poisoned by the manganese and the particles and steam of the manganese and the compounds thereof which exceed the allowable concentration are absorbed for a long time, so that the wear resistance of the D286 welding rod which is developed later is greatly improved, the welding repair requirement of the railway turnout is met, but the defect of the yellow smoke generated when the D286 welding rod is used for welding still exists because the D286 welding rod is limited by the manufacturing mode of the welding rod, such as the coating performance of the welding rod needs viscosity, elasticity, plasticity, slipperiness and the like, and the binder is inevitably added.
Disclosure of Invention
The invention aims to provide a low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof, aiming at solving the problems that most high manganese steel flux-cored wires are provided in the background technology, weld metal cannot meet the repair welding requirement of railway turnouts, strong yellow smoke is generated during welding, welding smoke generated by other welding materials is generally white and gray, the main poison in the yellow smoke is manganese, and manganese and the particles and steam of manganese compounds with the allowable concentration are inhaled for a long time, so that an operator can be poisoned by manganese. In order to solve the problems, the wear resistance of the D286 welding rod which is developed later is greatly improved, the repair welding requirement of the railway turnout is met, but the defect of yellow smoke generated when the D286 welding rod is used for welding is still the problem because the D286 welding rod is limited by the manufacturing mode of the welding rod, such as the coating performance of the welding rod needs viscosity, elasticity, plasticity, smoothness and the like, and the binder is inevitably added.
In order to achieve the purpose, the invention provides the following technical scheme: a low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof are disclosed, wherein the flux-cored wire comprises the following components in percentage by weight: 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum.
Preferably, the total of the components of the titanium dioxide, the ferrovanadium powder, the metal chromium powder, the metal manganese powder, the fluorite powder and the ferromolybdenum is 100%.
Preferably, the chemical components and mass percentage of the titanium dioxide are that TiO2 is more than or equal to 98 percent, S is less than or equal to 0.05 percent, and P is less than or equal to 0.05 percent.
Preferably, the chemical components and the mass percentage of the metal manganese powder are that Mn is more than or equal to 97.0 percent, S is less than or equal to 0.04 percent, P is less than or equal to 0.04 percent, and C is less than or equal to 0.08 percent.
Preferably, the preparation process of the high-manganese flux-cored wire is as follows:
the method comprises the following steps: powder materials of all components are respectively sieved, and titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum are placed in a vibrating screen for sieving, so that the sieved raw material components are 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum;
step two: separately baking the sieved powder according to different characteristics at high and low temperatures, and drying titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum in a dryer to ensure that the whole interior does not contain water and prevent the whole interior from caking, wherein the total content of the dried titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum is 100%;
step three: mixing the dried components according to corresponding mass percentage, placing 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum into a stirring tank for stirring and mixing, ensuring the complete mixing of the whole, stirring and stirring for 10-15 minutes at a stirring speed of 100 plus 150rpm until the powder in the whole is completely mixed, performing secondary screening on the mixed powder through a vibrating screen, placing the screened powder into a heat-insulating barrel for heat-insulating storage, and keeping the temperature of 20 ℃ in the heat-insulating barrel for storage;
step four: and putting the mixed materials into a U-shaped steel belt, rolling and molding the U-shaped steel belt by a molding machine, drawing the molded materials, ensuring that the molded materials meet the size requirement, cleaning and drying the materials meeting the size requirement, facilitating the overall subsequent operation, and winding the workpieces meeting the size requirement layer by layer to obtain the molded high manganese steel flux-cored wire.
The invention has the beneficial effects that: the low-dust multipurpose high manganese steel flux-cored wire and the preparation process thereof have the advantages that the particle size of the titanium dioxide is very small, the average particle size is less than 0.30 mu m, the melting point of the titanium dioxide is 1855 ℃, the boiling point is 2900 ℃, the titanium dioxide plays a role in slag formation originally, but the titanium dioxide plays a more important role in inhibiting smoke dust besides slag formation, during welding, molten drops are generated and transited to a welded piece only in one moment, but a complete process also exists, in the process, because the particle size of the titanium dioxide is much smaller than that of metal manganese powder, the melting point is much higher than that of the titanium dioxide, the boiling point is about 1000 ℃, the titanium dioxide can be covered on the molten metal manganese particles to effectively inhibit the metal manganese particles from generating smoke dust, titanium dioxide is not generally added in high manganese steel powder such as D256, D276 and D266, the addition amount of the titanium dioxide in the D286 welding rod is limited by production conditions, and the multipurpose high manganese dioxide high manganese steel flux-cored wire manufactured by the invention has no effect that the addition amount of the high manganese dioxide in the high manganese steel flux-cored wire with low-dust multipurpose flux-cored wire, in order to enable the flux-cored wire to achieve the effect of low dust, 17-22% of titanium dioxide is added in the formula, so that volatilization and oxidation of metal manganese are effectively inhibited, and generation of yellow smoke is greatly reduced, 1-3% of ferrovanadium and 2-4% of ferromolybdenum are added, so that intermetallic compounds are separated out in the crystallization and cooling processes of a welding seam, the strength of the welding seam metal is improved, meanwhile, smoke generated by the high manganese steel flux-cored wire during welding is almost the same as that of a common flux-cored wire such as ZE711, and forms strong contrast with dense smoke generated by high manganese steel welding rods such as D256, D276 and D266, and is also much less than that generated by the D welding rods, and the high manganese steel flux-cored wire has better physical properties than the D286, can be used for butt joint of various high-strength steel flux-cored wires, and has the advantages of greatly reducing welding smoke 286 and 286, The weld metal has high strength, good toughness and unchanged hardening and wear resistance after deformation, and the like, and increases the overall strength, forming effect and practicability.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof, wherein the flux-cored wire comprises the following components in percentage by weight: 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum.
Furthermore, the total of the components of the titanium dioxide, the ferrovanadium powder, the metal chromium powder, the metal manganese powder, the fluorite powder and the ferromolybdenum is 100%, and the 100% components of the titanium dioxide, the ferrovanadium powder, the metal chromium powder, the metal manganese powder, the fluorite powder and the ferromolybdenum are conveniently and integrally and fully mixed, so that the integral forming effect is improved.
Furthermore, the chemical components and mass percentage of the titanium dioxide are that TiO2 is more than or equal to 98 percent, S is less than or equal to 0.05 percent, P is less than or equal to 0.05 percent, the titanium dioxide has more important function of inhibiting smoke dust besides slagging, and during welding, the generation and transition of molten drops to a welded piece are only instant, but a complete process is also provided, in the process, because the granularity of the titanium dioxide is much smaller than that of the manganese metal powder, the melting point is much higher, and the boiling point is about 1000 ℃, the titanium dioxide can be covered on the molten manganese metal particles, and the smoke dust generation of the manganese metal particles is effectively inhibited.
Furthermore, the chemical components and the mass percentage of the metal manganese powder are that Mn is more than or equal to 97.0 percent, S is less than or equal to 0.04 percent, P is less than or equal to 0.04 percent, and C is less than or equal to 0.08 percent, so that the normal forming of the whole body is ensured, and the practicability of the whole body is improved.
Example one
The method comprises the following steps: powder materials of all components are respectively sieved, and titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum are placed in a vibrating screen for sieving, so that the sieved raw material components are 19% of titanium dioxide, 1.5% of ferrovanadium powder, 3.5% of metal chromium powder, 67% of metal manganese powder, 6% of fluorite powder and 3% of ferromolybdenum;
step two: separately baking the sieved powder according to different characteristics at high and low temperatures, and drying titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum in a dryer to ensure that the whole interior does not contain water and prevent the whole interior from caking, wherein the total content of the dried titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum is 100%;
step three: mixing the dried components according to corresponding mass percentage, placing 19% of titanium dioxide, 1.5% of ferrovanadium powder, 3.5% of metal chromium powder, 67% of metal manganese powder, 6% of fluorite powder and 3% of ferromolybdenum into a stirring tank for stirring and mixing, ensuring the complete mixing of the whole, stirring and stirring for 10-15 minutes at a stirring speed of 100 plus 150rpm until the powder in the whole is completely mixed, performing secondary screening on the mixed powder through a vibrating screen, placing the screened powder into a heat-insulating barrel for heat-insulating storage, and keeping the temperature of 20 ℃ in the heat-insulating barrel for storage;
step four: putting the mixed materials into a U-shaped steel belt, rolling and molding the U-shaped steel belt by a molding machine, drawing the molded materials, ensuring that the molded materials meet the size requirement, cleaning and drying the materials meeting the size requirement, facilitating the overall subsequent operation, and winding the workpieces meeting the size requirement in a layer manner to obtain the molded high manganese steel flux-cored wire;
the low-dust multipurpose high-manganese steel flux-cored wire prepared by the embodiment is adopted for welding, and the physical properties of the weld joint structure are measured and listed in table 1;
example two
The method comprises the following steps: powder materials of all components are respectively sieved, and titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum are placed in a vibrating screen for sieving, so that the sieved raw material components are 20% of titanium dioxide, 2% of ferrovanadium powder, 4% of metal chromium powder, 65% of metal manganese powder, 6% of fluorite powder and 3% of ferromolybdenum;
step two: separately baking the sieved powder according to different characteristics at high and low temperatures, and drying titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum in a dryer to ensure that the whole interior does not contain water and prevent the whole interior from caking, wherein the total content of the dried titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum is 100%;
step three: mixing the dried components according to corresponding mass percentage, putting 20% of titanium dioxide, 2% of ferrovanadium powder, 4% of metal chromium powder, 65% of metal manganese powder, 6% of fluorite powder and 3% of ferromolybdenum into a stirring tank for stirring and mixing, ensuring the complete mixing of the whole, stirring and stirring for 10-15 minutes at a stirring speed of 100 plus one year of 150rpm until the powder in the whole is completely mixed, carrying out secondary screening on the mixed powder through a vibrating screen, putting the screened powder into a heat-preserving barrel for heat preservation and storage, and keeping the temperature of 20 ℃ in the heat-preserving barrel for storage;
step four: putting the mixed materials into a U-shaped steel belt, rolling and molding the U-shaped steel belt by a molding machine, drawing the molded materials, ensuring that the molded materials meet the size requirement, cleaning and drying the materials meeting the size requirement, facilitating the overall subsequent operation, and winding the workpieces meeting the size requirement in a layer manner to obtain the molded high manganese steel flux-cored wire;
the low-dust multipurpose high-manganese steel flux-cored wire prepared by the embodiment is adopted for welding, and the physical properties of the weld joint structure are measured and listed in table 1;
comparative example 1
The method comprises the following steps: sieving the powder of each component respectively, and putting marble powder, rutile powder, ferrosilicon powder, manganese metal powder and fluorite powder into a vibrating screen for sieving, so as to ensure that the sieved raw material components are 25% of marble powder, 12% of rutile powder, 5% of ferrosilicon powder, 50% of manganese metal powder and 8% of fluorite powder;
step two: separately baking the sieved powder according to different characteristics at high and low temperatures, and drying marble powder, rutile powder, ferrosilicon powder, manganese metal powder and fluorite powder in a dryer to ensure that the whole interior does not contain water and prevent the whole interior from caking, and ensuring that the total content of the dried titanium dioxide, ferrovanadium powder, chromium metal powder, manganese metal powder, fluorite powder and ferromolybdenum is 100%;
step three: mixing the dried components according to corresponding mass percentage, putting 25% of marble powder, 12% of rutile powder, 5% of ferrosilicon powder, 50% of manganese metal powder and 8% of fluorite powder into a stirring tank for stirring and mixing, ensuring the complete mixing, stirring and stirring for 10-15 minutes at a stirring speed of 100 plus 150rpm until the powder in the whole is completely mixed, carrying out secondary screening on the mixed powder through a vibrating screen, putting the screened powder into a heat-preserving barrel for heat preservation and storage, and keeping the temperature of 20 ℃ in the heat-preserving barrel for storage;
step four: putting the mixed materials into a U-shaped steel belt, rolling and molding the U-shaped steel belt by a molding machine, drawing the molded materials, ensuring that the molded materials meet the size requirement, cleaning and drying the materials meeting the size requirement, facilitating the overall subsequent operation, and winding the workpieces meeting the size requirement in a layer manner to obtain the molded high manganese steel flux-cored wire;
the low-dust multipurpose high-manganese steel flux-cored wire prepared by the embodiment is used for welding, and the physical properties of the weld joint structure are measured and listed in table 1.
TABLE 1
| Tensile Strength Rm (MPa) | Elongation A (%) | Welding yellow smoke | |
| Example one | 780 | 29 | Chinese character shao (a Chinese character of 'shao') |
| Example two | 760 | 28 | Chinese character shao (a Chinese character of 'shao') |
| Comparative example 1 | 560 | 21 | Concentration |
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A low-dust multipurpose high manganese steel flux-cored wire and a preparation process thereof are characterized in that: the flux-cored wire comprises the following components in percentage by weight: 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum.
2. The low-dust multipurpose high-manganese steel flux-cored wire and the preparation process thereof as claimed in claim 1, wherein: the total of the components of the titanium dioxide, the ferrovanadium powder, the metal chromium powder, the metal manganese powder, the fluorite powder and the ferromolybdenum is 100 percent.
3. The low-dust multipurpose high-manganese steel flux-cored wire and the preparation process thereof as claimed in claim 1, wherein: the titanium dioxide comprises the chemical components with the mass percentage of TiO2 being more than or equal to 98 percent, S being less than or equal to 0.05 percent and P being less than or equal to 0.05 percent.
4. The low-dust multipurpose high-manganese steel flux-cored wire and the preparation process thereof as claimed in claim 1, wherein: the chemical components and mass percentage of the metal manganese powder are that Mn is more than or equal to 97.0 percent, S is less than or equal to 0.04 percent, P is less than or equal to 0.04 percent, and C is less than or equal to 0.08 percent.
5. The low-dust multipurpose high-manganese steel flux-cored wire of claims 1-4, wherein: the preparation process of the high-manganese flux-cored wire comprises the following steps:
the method comprises the following steps: powder materials of all components are respectively sieved, and titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum are placed in a vibrating screen for sieving, so that the sieved raw material components are 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum;
step two: separately baking the sieved powder according to different characteristics at high and low temperatures, and drying titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum in a dryer to ensure that the whole interior does not contain water and prevent the whole interior from caking, wherein the total content of the dried titanium dioxide, ferrovanadium powder, metal chromium powder, metal manganese powder, fluorite powder and ferromolybdenum is 100%;
step three: mixing the dried components according to corresponding mass percentage, placing 17-22% of titanium dioxide, 1-3% of ferrovanadium powder, 3-5% of metal chromium powder, 60-70% of metal manganese powder, 5-8% of fluorite powder and 2-4% of ferromolybdenum into a stirring tank for stirring and mixing, ensuring the complete mixing of the whole, stirring and stirring for 10-15 minutes at a stirring speed of 100 plus 150rpm until the powder in the whole is completely mixed, performing secondary screening on the mixed powder through a vibrating screen, placing the screened powder into a heat-insulating barrel for heat-insulating storage, and keeping the temperature of 20 ℃ in the heat-insulating barrel for storage;
step four: and putting the mixed materials into a U-shaped steel belt, rolling and molding the U-shaped steel belt by a molding machine, drawing the molded materials, ensuring that the molded materials meet the size requirement, cleaning and drying the materials meeting the size requirement, facilitating the overall subsequent operation, and winding the workpieces meeting the size requirement layer by layer to obtain the molded high manganese steel flux-cored wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643369.4A CN113414518A (en) | 2021-06-09 | 2021-06-09 | Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643369.4A CN113414518A (en) | 2021-06-09 | 2021-06-09 | Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113414518A true CN113414518A (en) | 2021-09-21 |
Family
ID=77788175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110643369.4A Pending CN113414518A (en) | 2021-06-09 | 2021-06-09 | Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113414518A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428376A (en) * | 2008-12-10 | 2009-05-13 | 天津三英焊业股份有限公司 | High-chromium-manganese austenitic steel alkalescent full-position gas-protection flux-cored wire |
| KR20130003686A (en) * | 2011-06-30 | 2013-01-09 | 주식회사 포스코 | Flux cored arc weld wire having excellent low temperature toughness for high maganese steel |
| CN102896437A (en) * | 2012-10-16 | 2013-01-30 | 首钢总公司 | Flux-cored wire for surfacing repairing of high-manganese-steel cast steel frog and steel rail |
| CN105345313A (en) * | 2015-12-23 | 2016-02-24 | 山东大学 | High-strength flux-cored wire capable of increasing penetration as well as preparation method and application of flux-cored wire |
| CN106695155A (en) * | 2016-12-14 | 2017-05-24 | 安徽华众焊业有限公司 | Low-hydrogen high toughness acidic flux-cored wire |
| CN110653515A (en) * | 2019-10-31 | 2020-01-07 | 洛阳双瑞特种合金材料有限公司 | Seamless submerged arc flux-cored wire for welding high manganese steel LNG storage tank |
-
2021
- 2021-06-09 CN CN202110643369.4A patent/CN113414518A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428376A (en) * | 2008-12-10 | 2009-05-13 | 天津三英焊业股份有限公司 | High-chromium-manganese austenitic steel alkalescent full-position gas-protection flux-cored wire |
| KR20130003686A (en) * | 2011-06-30 | 2013-01-09 | 주식회사 포스코 | Flux cored arc weld wire having excellent low temperature toughness for high maganese steel |
| CN102896437A (en) * | 2012-10-16 | 2013-01-30 | 首钢总公司 | Flux-cored wire for surfacing repairing of high-manganese-steel cast steel frog and steel rail |
| CN105345313A (en) * | 2015-12-23 | 2016-02-24 | 山东大学 | High-strength flux-cored wire capable of increasing penetration as well as preparation method and application of flux-cored wire |
| CN106695155A (en) * | 2016-12-14 | 2017-05-24 | 安徽华众焊业有限公司 | Low-hydrogen high toughness acidic flux-cored wire |
| CN110653515A (en) * | 2019-10-31 | 2020-01-07 | 洛阳双瑞特种合金材料有限公司 | Seamless submerged arc flux-cored wire for welding high manganese steel LNG storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112792479B (en) | High-strength high-toughness gas shielded welding solid welding wire for X90 pipeline steel and preparation method thereof | |
| EP2067566A1 (en) | Flux-cored wire for submerged arc welding of low-temperature steel and a method for welding using the same | |
| US4843212A (en) | Composition of welding wire | |
| CN106077992A (en) | A kind of mould electric arc that is applicable to increases micro-slag gas-shielded flux-cored wire that material manufactures | |
| CN108857140A (en) | Antidetonation is anti-corrosion 460MPa grades of welding wire for submerged-arc welding of fire-resistive construction structural steel | |
| JP2012511431A (en) | Flux and wire for submerged arc welding of CrMoV steel | |
| CN108788519B (en) | Preparation process and application of high-strength stainless steel electric arc welding flux-cored wire | |
| CN105798483A (en) | Welding electrode coating and method of preparing same into welding electrode | |
| US5718776A (en) | Steel plate less susceptible to welding distortion and highly bendable by lineal heating, process for producing said steel plate, welding material, and welding method using said welding material | |
| JP2019111562A (en) | Coated arc welding rod | |
| CN113458652A (en) | Stainless steel flux-cored wire and preparation method thereof | |
| CN112719692B (en) | 900 MPa-grade high-strength steel gas shielded solid welding wire and preparation method thereof | |
| CN113414518A (en) | Low-dust multipurpose high-manganese steel flux-cored wire and preparation process thereof | |
| JPS5847957B2 (en) | Low hydrogen coated arc welding rod for low temperature steel | |
| JP3824143B2 (en) | Manufacturing method of flux for submerged arc welding and submerged arc welding joint. | |
| JP7517508B2 (en) | Manufacturing method of welded joint | |
| CN107009051A (en) | A kind of high tensile pipeline steel all-position welding low hydrogen high-ductility self-protection flux-cored wire | |
| JP4127993B2 (en) | Submerged arc welded joint | |
| JPS5922633B2 (en) | Low hydrogen coated arc welding rod | |
| JPH02258192A (en) | Coated electrode for enclosed arc welding of rail | |
| US2038178A (en) | Electric arc welding | |
| CN108544127A (en) | 1Cr12NiW1MoV stainless steels and the stainless steel welded gas shielded type flux-cored wires and preparation method thereof of G520 | |
| CN109277724B (en) | Gas-shielded welding wire for local repair of core rod and welding process | |
| CN102198568B (en) | Flux cored wire for impact-resistant nonstick steel overlaying | |
| JP7401345B2 (en) | Ni-based alloy flux-cored wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |