CN114571135A - Self-protection flux-cored wire for low-temperature steel - Google Patents
Self-protection flux-cored wire for low-temperature steel Download PDFInfo
- Publication number
- CN114571135A CN114571135A CN202210371704.4A CN202210371704A CN114571135A CN 114571135 A CN114571135 A CN 114571135A CN 202210371704 A CN202210371704 A CN 202210371704A CN 114571135 A CN114571135 A CN 114571135A
- Authority
- CN
- China
- Prior art keywords
- wall
- powder
- flux
- drying
- cored wire
- 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.)
- Granted
Links
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a self-protection flux-cored wire for low-temperature steel, which comprises a steel strip and powder filled in the steel strip, wherein a flux core is prepared by mixing 30-31 wt% of barium fluoride, 8-12 wt% of ferrosilicon, 0.4-0.6 wt% of electrolytic manganese, 4-6 wt% of silicomanganese, 12-14 wt% of aluminum magnesium powder, 1-3 wt% of graphite, 9-11 wt% of aluminum powder, 2-4 wt% of marble, 5-7 wt% of ferromolybdenum, 14-16 wt% of ferrochromium and the balance of iron powder; the flux-cored wire prepared by adding barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder has the advantages of small splashing, good weld joint forming and excellent slag removal, the weld joint strength can still reach more than 49J at the temperature of minus 60 ℃, and the flux-cored wire is suitable for outdoor welding and operation requirements under the environment of the low temperature of minus 60 ℃ in the north and south polar regions; the drying furnace designed in the process of manufacturing the flux-cored wire is simple in structure and convenient to use, the drying assembly is arranged, the drying efficiency is improved, and the rotating assembly is arranged, so that raw materials are dried more uniformly and perfectly.
Description
Technical Field
The invention relates to the technical field of flux-cored wires, in particular to a self-protection flux-cored wire for low-temperature steel.
Background
Flux-cored wires, also known as flux-cored wires and tubular welding wires, are classified into two major categories, namely gas-shielded protection and non-gas-shielded protection; the surface of the flux-cored wire is the same as that of a solid-core welding wire and is made of low-carbon steel or low-alloy steel and the like with better plasticity; the manufacturing method comprises rolling steel strip into U-shaped section, adding welding powder into the U-shaped steel strip, rolling with a rolling mill, and drawing to obtain flux-cored wires of different specifications; however, the existing flux-cored wire is not suitable for low-temperature areas, cannot meet the requirements of welding and operation in a low-temperature environment, has poor welding process performance mainly manifested by large splashing and poor slag detachability, and is not worth being widely popularized and applied.
Disclosure of Invention
The invention aims to provide a self-protection flux-cored wire for low-temperature steel, which is prepared by adding barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder, has the advantages of small splashing, good weld forming and excellent slag removal, can still reach more than 49J at the high and low temperature of-60 ℃ of the weld strength, and is suitable for outdoor welding and operation requirements under the environment of low temperature-60 ℃ in north and south polar regions; the drying furnace designed in the process of manufacturing the flux-cored wire is simple in structure and convenient to use, the drying component is arranged, the drying efficiency is improved, and the rotary component is arranged, so that raw materials are dried more uniformly and more perfectly.
The purpose of the invention can be realized by the following technical scheme:
a self-protection flux-cored wire for low-temperature steel comprises a steel strip and powder filled in the steel strip, wherein the flux core is prepared by mixing 30-31 wt% of barium fluoride, 8-12 wt% of ferrosilicon, 0.4-0.6 wt% of electrolytic manganese, 4-6 wt% of silicomanganese, 12-14 wt% of aluminum-magnesium powder, 1-3 wt% of graphite, 9-11 wt% of aluminum powder, 2-4 wt% of marble, 5-7 wt% of ferromolybdenum, 14-16 wt% of ferrochromium and the balance of iron powder;
as a further scheme of the invention: the weight percentage of molybdenum in the ferromolybdenum is 25% -35%, the weight percentage of aluminum in the aluminum-magnesium powder is 45% -50%, the weight percentage of chromium in the ferrochrome is 50% -55%, and the weight percentage of silicon in the ferrosilicon is 32% -40%.
As a further scheme of the invention: the filling rate of the flux-cored wire is 23-26%.
As a further scheme of the invention: the steel strip had a composition of 304L and a thickness X width of 0.35mm X10 mm.
A preparation method of a self-protection flux-cored wire for low-temperature steel comprises the following specific steps:
step one, weighing 30-31% of barium fluoride, 8-12% of ferrosilicon, 0.4-0.6% of electrolytic manganese, 4-6% of silicomanganese, 12-14% of aluminum magnesium powder, 1-3% of graphite, 9-11% of aluminum powder, 2-4% of marble, 5-7% of ferromolybdenum, 14-16% of ferrochrome and the balance of iron powder according to the mass percentage, wherein the sum of the mass percentages of the components is 100%;
step two, adding the barium fluoride, electrolytic manganese, silicomanganese, graphite, aluminum magnesium powder and marble weighed in the step one into a water glass binder, uniformly mixing, placing the mixture into a heating furnace, sintering, discharging, sieving, screening with the granularity being less than or equal to 55 meshes to obtain mixed powder A, weighing aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder, stirring and mixing the powder A at the stirring speed of 750r/min for 20min, uniformly mixing, and placing the mixture in a drying furnace for drying to obtain medicine core powder;
thirdly, placing the steel strip on a strip placing machine, rewinding the steel strip, cleaning the steel strip through a forming machine, rolling the steel strip into a U-shaped groove, adding the medicinal powder obtained in the second step into the U-shaped groove, controlling the filling rate of the flux-cored powder to be 23% -26%, sealing the steel strip through the forming machine, reducing the diameter to 2.8mm to obtain a semi-finished welding wire product, then performing wire drawing, performing drawing and reducing the diameter of the semi-finished welding wire product through a wire drawing machine to 1.6mm to obtain the flux-cored welding wire;
and step four, finally, coiling the finished welding wire layer, packaging and warehousing.
As a further scheme of the invention: in the second step, the sintering temperature is 450-600 ℃, and the sintering time is 1.5-3 h.
As a further scheme of the invention: in the second step, the drying temperature is 150-.
As a further scheme of the invention: the drying furnace in the second step comprises a heat insulation roller, a drying cylinder, a material pipe, a valve, heating plates, a drying assembly, a rotating assembly, a discharging assembly, a bottom plate and a convex plate, wherein the drying cylinder is welded on the inner wall of one side of the heat insulation roller, the material pipe is welded on the outer wall of one side of the heat insulation roller corresponding to the drying cylinder in a penetrating manner and is communicated with the drying cylinder, the valve is arranged on the outer wall of the material pipe, the heating plates are arranged on the inner wall of the heat insulation roller, the drying assembly is arranged on the outer wall of the drying cylinder, the rotating assembly is arranged on the outer wall of the heat insulation roller, and the discharging assembly is arranged on the outer wall of the bottom end of the rotating assembly;
the rotating assembly comprises an annular support, an annular groove, an annular sliding block, a rotating motor, a belt wheel, a belt and a belt groove, wherein the two annular supports are sleeved on the outer wall of the heat insulation roller, the annular groove is formed in the inner wall of the annular support, the annular sliding block is welded to the outer wall of the heat insulation roller in a corresponding mode, the outer wall of the annular sliding block is attached to the inner wall of the annular groove, the rotating motor is installed on the outer wall of one side of the annular support, the belt wheel is sleeved on one end of an output shaft of the rotating motor, the belt is sleeved on the outer wall of the belt wheel, the belt groove is formed in the outer wall of the heat insulation roller in a corresponding mode, the other end of the belt is sleeved in the belt groove, and two convex plates are fixed on the inner wall of the drying cylinder.
As a further scheme of the invention: the drying component comprises a spiral pipe, a blowing hole, a bearing sleeve, an air blower and a connecting steel pipe, the spiral pipe is installed on the outer wall of the drying cylinder in the heat insulation roller, the spiral pipe penetrates one end of the outer wall of the heat insulation roller and is rotatably installed with the bearing sleeve, the connecting steel pipe is inserted into the other end of the bearing sleeve and is rotatably connected with the bearing sleeve, the air blower is installed on the corresponding connecting steel pipe on one side of the annular support, and the air outlet of the air blower is connected with one end of the connecting steel pipe.
As a further scheme of the invention: the blanking assembly comprises a first supporting plate, a second supporting plate, a third supporting plate, a fixed plate, a moving groove, a moving rod, a hydraulic cylinder and a sleeve ring, the welding machine is provided with two first supporting plates on the outer wall of the bottom end of the annular support, the two first supporting plates are rotatably provided with the third supporting plate on the bottom end close to the material pipe, the other two first supporting plates are rotatably provided with the second supporting plate on the bottom end, a bottom plate is welded on the bottom end between the second supporting plates, the moving rod is rotatably provided on the outer wall between the third supporting plates, the sleeve ring is sleeved on the outer wall of the middle part of the moving rod, the hydraulic cylinder is fixed on the outer wall of the top end of the bottom plate on one side of the sleeve ring, one end of a telescopic shaft of the hydraulic cylinder is fixed on the outer wall of the top end of the bottom plate on two sides of the third supporting plate, the fixed plate is welded on the outer wall of the top end of the bottom plate on two sides of the third supporting plate, the moving groove is arranged on the outer wall of the fixed plate corresponding to the moving rod, and the outer wall of the movable rod is attached to the inner wall of the movable groove.
The invention has the beneficial effects that: the flux-cored wire prepared by adding barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder has the advantages of small splashing, good weld joint forming and excellent slag removal, the weld joint strength can still reach more than 49J at the temperature of minus 60 ℃, and the flux-cored wire is suitable for outdoor welding and operation requirements under the environment of the low temperature of minus 60 ℃ in the north and south polar regions; the drying furnace designed in the process of manufacturing the flux-cored wire is simple in structure, convenient to use, the drying component is arranged, through the matching of the spiral pipe, the air blowing hole, the bearing sleeve, the air blower and the connecting steel pipe, the heat of the heating plate is conveniently and fully utilized, the gas passing through the spiral pipe is heated and blown to the raw material of the drying cylinder, the drying efficiency and the drying effect are improved, the rotating component is arranged, through the matching of the annular support, the annular groove, the annular sliding block, the rotating motor, the belt wheel, the belt and the belt groove, the drying cylinder is convenient to rotate, so that the raw material is overturned, the raw material is dried more uniformly and perfectly, the blanking component is arranged, through the matching of the first support plate, the second support plate, the third support plate, the fixing plate, the moving groove, the moving rod, the hydraulic cylinder and the lantern ring, when in blanking, the material pipe, the heat insulation roller and the drying cylinder can be inclined, is convenient for discharging and is worth being widely popularized and applied.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic front perspective view of a drying oven according to the present invention;
FIG. 2 is a schematic side view of the drying oven according to the present invention;
FIG. 3 is a partial front sectional view of the drying oven of the present invention;
in the figure: 1. a heat-insulating roller; 2. a drying drum; 3. a material pipe; 4. a valve; 5. heating plates; 6. a drying assembly; 7. a rotating assembly; 8. a blanking assembly; 9. a base plate; 10. a convex plate; 61. a spiral tube; 62. an air blowing hole; 63. a bearing housing; 64. a blower; 65. connecting the steel pipes; 71. a ring-shaped support; 72. an annular groove; 73. an annular slider; 74. a rotating electric machine; 75. a pulley; 76. a belt; 77. a belt groove is formed; 81. a first support plate; 82. a second support plate; 83. a third support plate; 84. a fixing plate; 85. a moving groove; 86. a travel bar; 87. a hydraulic cylinder; 88. a collar.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example 1
As shown in fig. 1-3, a self-protecting flux-cored wire for low-temperature steel comprises a steel strip and powder filled in the steel strip, wherein a flux core is prepared by mixing 30.5% of barium fluoride, 10% of ferrosilicon, 0.5% of electrolytic manganese, 5% of silicomanganese, 13% of aluminum magnesium powder, 2% of graphite, 10% of aluminum powder, 3% of marble, 6% of ferromolybdenum, 15% of ferrochromium and 5% of iron powder in percentage by weight; 25-35 wt% of molybdenum in ferromolybdenum, 45-50 wt% of aluminum in aluminum-magnesium powder, 50-55 wt% of chromium in ferrochromium and 32-40 wt% of silicon in ferrosilicon; the steel strip has the components of 304L, and the thickness multiplied by the width of the steel strip is 0.35mm multiplied by 10 mm;
a preparation method of a self-protection flux-cored wire for low-temperature steel comprises the following specific steps:
step one, respectively weighing barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochrome and the balance of iron powder according to mass percent, wherein the sum of the mass percent of the components is 100%;
step two, adding the barium fluoride, electrolytic manganese, silicomanganese, graphite, aluminum magnesium powder and marble weighed in the step one into a water glass binder, uniformly mixing, placing the mixture into a heating furnace, sintering, discharging, sieving, screening, wherein the granularity is less than or equal to 55 meshes to obtain mixed powder A, weighing aluminum powder, marble, ferromolybdenum, ferrochrome and iron powder, stirring and mixing the powder A at the stirring speed of 750r/min for 20min, uniformly mixing, and placing the mixture into a drying furnace for drying to obtain medicine core powder; the drying furnace comprises a heat insulation roller 1, a drying cylinder 2, a material pipe 3, a valve 4, a heating plate 5, a drying assembly 6, a rotating assembly 7, a blanking assembly 8, a bottom plate 9 and a convex plate 10, wherein the drying cylinder 2 is welded on the inner wall of one side of the heat insulation roller 1, the material pipe 3 is welded on the outer wall of one side of the heat insulation roller 1 corresponding to the drying cylinder 2 in a penetrating way, and the material pipe 3 is communicated with the drying cylinder 2, the valve 4 is arranged on the outer wall of the material pipe 3, a plurality of heating plates 5 are arranged on the inner wall of the heat insulation roller 1, the drying component 6 is arranged on the outer wall of the drying cylinder 2, the rotating component 7 is arranged on the outer wall of the heat insulation roller 1, the blanking component 8 is arranged on the outer wall at the bottom end of the rotating component 7, when the material is discharged into the drying cylinder 2, the material port of the material pipe 3 is rotated to the upward direction, the valve 4 is opened, the raw materials are put into the drying cylinder 2 through the material pipe 3, and during discharging, a material port of the material pipe 3 is rotated to the downward direction;
the rotating assembly 7 comprises annular supports 71, annular grooves 72, annular sliders 73, rotating motors 74, belt wheels 75, belts 76 and belt grooves 77, the outer wall of the heat-insulating roller 1 is sleeved with the two annular supports 71, the inner wall of each annular support 71 is provided with the annular groove 72, the outer wall of the heat-insulating roller 1 is welded with the annular slider 73 corresponding to the annular groove 72, the outer wall of the annular slider 73 is attached to the inner wall of the annular groove 72, the rotating motor 74 is installed on the outer wall of one side of each annular support 71, one end of an output shaft of the rotating motor 74 is sleeved with the belt wheel 75, the outer wall of each belt wheel 75 is sleeved with the belt 76, the outer wall of the heat-insulating roller 1 is provided with the belt groove 77 corresponding to the belt 76, the other end of the belt 76 is sleeved in the belt groove 77, and the inner wall of the drying cylinder 2 is fixed with the two convex plates 10, so as to facilitate drying of the raw materials of the drying cylinder 2, the drying effect is good and uniform, the working efficiency is improved, the rotating motor 74 drives the belt wheel 75 to rotate, the belt wheel 75 drives the heat insulation roller 1 and the drying cylinder 2 to rotate through the matching of the belt 76 and the belt groove 77, and the heating plate 5 is matched to heat the drying cylinder 2, so that the raw material is heated, and the raw material is dried more uniformly;
the drying component 6 comprises a spiral pipe 61, a blowing hole 62, a bearing sleeve 63, an air blower 64 and a connecting steel pipe 65, the spiral pipe 61 is installed on the outer wall of the drying cylinder 2 in the heat insulation roller 1, the bearing sleeve 63 is rotatably installed on one end, penetrating through the outer wall of the heat insulation roller 1, of the spiral pipe 61, the connecting steel pipe 65 is inserted into the other end of the bearing sleeve 63, the connecting steel pipe 65 is rotatably connected with the bearing sleeve 63, the air blower 64 is installed on one side of an annular support 71 corresponding to the connecting steel pipe 65, an air outlet of the air blower 64 is connected with one end of the connecting steel pipe 65, raw materials in the drying cylinder 2 are further dried, the drying efficiency is further improved, the air blower 64 is started, wind generated by the air blower 64 is blown into the drying cylinder 2 from the blowing hole 62 through the connecting steel pipe 65 and the spiral pipe 61, the drying efficiency is further improved, the spiral pipe 61 is heated through the heating plate 5, and the blown wind is hot wind, the drying efficiency is further improved;
the blanking assembly 8 comprises a first supporting plate 81, a second supporting plate 82, a third supporting plate 83, a fixing plate 84, a moving groove 85, a moving rod 86, a hydraulic cylinder 87 and a lantern ring 88, two first supporting plates 81 are welded on the outer wall of the bottom end of the annular support 71, the third supporting plate 83 is rotatably installed on the bottom ends of the two first supporting plates 81 close to the material pipe 3, the second supporting plate 82 is rotatably installed on the bottom ends of the other two first supporting plates 81, a bottom plate 9 is welded on the bottom end between the second supporting plates 82, the moving rod 86 is rotatably installed on the outer wall between the third supporting plates 83, the lantern ring 88 is sleeved on the outer wall of the middle part of the moving rod 86, the hydraulic cylinder 87 is fixed on the outer wall of the top end of the bottom plate 9 on one side of the lantern ring 88, one end of a telescopic shaft of the hydraulic cylinder 87 is fixed on the outer wall of the lantern ring 88, the fixing plate 84 is welded on the outer walls of the top ends of the bottom plate 9 on two sides of the third supporting plates 83, the outer wall of the fixed plate 84 is provided with a moving groove 85 corresponding to the moving rod 86 in a penetrating manner, the outer wall of the moving rod 86 is attached to the inner wall of the moving groove 85, the structure is simple, the operation is convenient, the blanking is convenient, the material is perfect and practical, the hydraulic cylinder 87 is started, the hydraulic cylinder 87 drives the moving rod 86 to move through the lantern ring 88, the moving rod 86 drives the third supporting plate 83 to move, the heat insulation roller 1 and the drying roller 2 are inclined towards one side of the material pipe 3 through the matching with the second supporting plate 82, and the material is convenient to discharge;
thirdly, placing the steel strip on a strip placing machine, rewinding the steel strip, cleaning the steel strip through a forming machine, rolling the steel strip into a U-shaped groove, adding the medicinal powder obtained in the second step into the U-shaped groove, controlling the filling rate of the flux-cored powder to be 23% -26%, sealing the steel strip through the forming machine, reducing the diameter to 2.8mm to obtain a semi-finished welding wire product, then performing wire drawing, performing drawing and reducing the diameter of the semi-finished welding wire product through a wire drawing machine to 1.6mm to obtain the flux-cored welding wire;
and step four, finally, coiling the finished welding wire layer, packaging and warehousing.
Example 2
As shown in fig. 1-3, a self-protecting flux-cored wire for low-temperature steel comprises a steel strip and powder filled in the steel strip, wherein a flux core is prepared by mixing 30% by weight of barium fluoride, 12% by weight of ferrosilicon, 0.4% by weight of electrolytic manganese, 4% by weight of silicomanganese, 12% by weight of aluminum-magnesium powder, 3% by weight of graphite, 11% by weight of aluminum powder, 4% by weight of marble, 7% by weight of ferromolybdenum, 14% by weight of ferrochromium and 2.6% by weight of iron powder; 25-35 wt% of molybdenum in ferromolybdenum, 45-50 wt% of aluminum in aluminum-magnesium powder, 50-55 wt% of chromium in ferrochromium and 32-40 wt% of silicon in ferrosilicon; the steel strip has the components of 304L, and the thickness multiplied by the width of the steel strip is 0.35mm multiplied by 10 mm;
a preparation method of a self-protection flux-cored wire for low-temperature steel comprises the following specific steps:
step one, respectively weighing barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochromium and the balance of iron powder according to mass percent, wherein the sum of the mass percent of the components is 100%;
step two, adding the barium fluoride, electrolytic manganese, silicomanganese, graphite, aluminum magnesium powder and marble weighed in the step one into a water glass binder, uniformly mixing, placing the mixture into a heating furnace, sintering, discharging, sieving, screening, wherein the granularity is less than or equal to 55 meshes to obtain mixed powder A, weighing aluminum powder, marble, ferromolybdenum, ferrochrome and iron powder, stirring and mixing the powder A at the stirring speed of 750r/min for 20min, uniformly mixing, and placing the mixture into a drying furnace for drying to obtain medicine core powder; the drying furnace comprises a heat insulation roller 1, a drying cylinder 2, a material pipe 3, a valve 4, a heating plate 5, a drying component 6, a rotating component 7, a blanking component 8, a bottom plate 9 and a convex plate 10, wherein the drying cylinder 2 is welded on the inner wall of one side of the heat insulation roller 1, the material pipe 3 is welded on the outer wall of one side of the heat insulation roller 1 corresponding to the drying cylinder 2 in a penetrating way, and the material pipe 3 is communicated with the drying cylinder 2, the valve 4 is arranged on the outer wall of the material pipe 3, a plurality of heating plates 5 are arranged on the inner wall of the heat insulation roller 1, the drying assembly 6 is arranged on the outer wall of the drying cylinder 2, the rotating assembly 7 is arranged on the outer wall of the heat insulation roller 1, the blanking assembly 8 is arranged on the outer wall at the bottom end of the rotating assembly 7, when the material is discharged into the drying cylinder 2, the material port of the material pipe 3 is rotated to the upward direction, the valve 4 is opened, the raw materials are put into the drying cylinder 2 through the material pipe 3, and during discharging, a material port of the material pipe 3 is rotated to the downward direction;
the rotating component 7 comprises annular supports 71, annular grooves 72, annular sliders 73, a rotating motor 74, belt wheels 75, belts 76 and belt grooves 77, two annular supports 71 are sleeved on the outer wall of the heat insulation roller 1, the annular grooves 72 are formed in the inner wall of the annular supports 71, the annular sliders 73 are welded on the outer wall of the heat insulation roller 1 corresponding to the annular grooves 72, the outer wall of each annular slider 73 is attached to the inner wall of the corresponding annular groove 72, the rotating motor 74 is installed on the outer wall of one side of each annular support 71, one end of an output shaft of the rotating motor 74 is sleeved with each belt wheel 75, the outer wall of each belt wheel 75 is sleeved with each belt 76, the belt grooves 77 are formed in the outer wall of the heat insulation roller 1 corresponding to the belts 76, the other end of each belt 76 is sleeved in the corresponding belt groove 77, two convex plates 10 are fixed on the inner wall of the drying cylinder 2, so that the raw materials of the drying cylinder 2 can be dried conveniently, the drying effect is good and uniform, and the working efficiency is improved, the rotating motor 74 drives the belt wheel 75 to rotate, the belt wheel 75 drives the heat insulation roller 1 and the drying cylinder 2 to rotate through the matching of the belt 76 and the belt groove 77, and the drying cylinder 2 is heated through the matching of the upper heating plate 5, so that the raw material is heated, and the raw material is dried uniformly;
the drying component 6 comprises a spiral pipe 61, a blowing hole 62, a bearing sleeve 63, an air blower 64 and a connecting steel pipe 65, the spiral pipe 61 is installed on the outer wall of the drying cylinder 2 in the heat insulation roller 1, the bearing sleeve 63 is rotatably installed on one end, penetrating through the outer wall of the heat insulation roller 1, of the spiral pipe 61, the connecting steel pipe 65 is inserted into the other end of the bearing sleeve 63, the connecting steel pipe 65 is rotatably connected with the bearing sleeve 63, the air blower 64 is installed on one side of an annular support 71 corresponding to the connecting steel pipe 65, an air outlet of the air blower 64 is connected with one end of the connecting steel pipe 65, raw materials in the drying cylinder 2 are further dried, the drying efficiency is further improved, the air blower 64 is started, wind generated by the air blower 64 is blown into the drying cylinder 2 from the blowing hole 62 through the connecting steel pipe 65 and the spiral pipe 61, the drying efficiency is further improved, the spiral pipe 61 is heated through the heating plate 5, and the blown wind is hot wind, the drying efficiency is further improved;
the blanking assembly 8 comprises a first supporting plate 81, a second supporting plate 82, a third supporting plate 83, a fixing plate 84, a moving groove 85, a moving rod 86, a hydraulic cylinder 87 and a lantern ring 88, two first supporting plates 81 are welded on the outer wall of the bottom end of the annular support 71, the third supporting plate 83 is rotatably installed on the bottom ends of the two first supporting plates 81 close to the material pipe 3, the second supporting plate 82 is rotatably installed on the bottom ends of the other two first supporting plates 81, a bottom plate 9 is welded on the bottom end between the second supporting plates 82, the moving rod 86 is rotatably installed on the outer wall between the third supporting plates 83, the lantern ring 88 is sleeved on the outer wall of the middle part of the moving rod 86, the hydraulic cylinder 87 is fixed on the outer wall of the top end of the bottom plate 9 on one side of the lantern ring 88, one end of a telescopic shaft of the hydraulic cylinder 87 is fixed on the outer wall of the lantern ring 88, the fixing plate 84 is welded on the outer walls of the top ends of the bottom plate 9 on two sides of the third supporting plates 83, the outer wall of the fixed plate 84 is provided with a moving groove 85 corresponding to the moving rod 86 in a penetrating manner, the outer wall of the moving rod 86 is attached to the inner wall of the moving groove 85, the structure is simple, the operation is convenient, the blanking is convenient, the material is perfect and practical, the hydraulic cylinder 87 is started, the hydraulic cylinder 87 drives the moving rod 86 to move through the lantern ring 88, the moving rod 86 drives the third supporting plate 83 to move, the heat insulation roller 1 and the drying roller 2 are inclined towards one side of the material pipe 3 through the matching with the second supporting plate 82, and the material is convenient to discharge;
thirdly, placing the steel strip on a strip placing machine, rewinding the steel strip, cleaning the steel strip through a forming machine, rolling the steel strip into a U-shaped groove, adding the medicinal powder obtained in the second step into the U-shaped groove, controlling the filling rate of the flux-cored powder to be 23% -26%, sealing the steel strip through the forming machine, reducing the diameter to 2.8mm to obtain a semi-finished welding wire product, then performing wire drawing, performing drawing and reducing the diameter of the semi-finished welding wire product through a wire drawing machine to 1.6mm to obtain the flux-cored welding wire;
and step four, finally coiling the finished welding wire layer, packaging and warehousing.
Example 3
As shown in fig. 1-3, a self-protecting flux-cored wire for low-temperature steel comprises a steel strip and powder filled in the steel strip, wherein a flux core is prepared by mixing 31% by weight of barium fluoride, 8% by weight of ferrosilicon, 0.6% by weight of silicon-manganese, 4% by weight of silicon-manganese, 12% by weight of aluminum-magnesium powder, 1% by weight of graphite, 9% by weight of aluminum powder, 2% by weight of marble, 5% by weight of ferromolybdenum, 16% by weight of ferrochromium and 11.44% by weight of iron powder; 25-35 wt% of molybdenum in ferromolybdenum, 45-50 wt% of aluminum in aluminum-magnesium powder, 50-55 wt% of chromium in ferrochromium, and 32-40 wt% of silicon in ferrosilicon; the steel strip has the components of 304L, and the thickness multiplied by the width of the steel strip is 0.35mm multiplied by 10 mm;
a preparation method of a self-protection flux-cored wire for low-temperature steel comprises the following specific steps:
step one, respectively weighing barium fluoride, ferrosilicon, electrolytic manganese, silicomanganese, aluminum magnesium powder, graphite, aluminum powder, marble, ferromolybdenum, ferrochromium and the balance of iron powder according to mass percent, wherein the sum of the mass percent of the components is 100%;
step two, adding the barium fluoride, electrolytic manganese, silicomanganese, graphite, aluminum magnesium powder and marble weighed in the step one into a water glass binder, uniformly mixing, placing the mixture into a heating furnace, sintering, discharging, sieving, screening with the granularity being less than or equal to 55 meshes to obtain mixed powder A, weighing aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder, stirring and mixing the powder A at the stirring speed of 750r/min for 20min, uniformly mixing, and placing the mixture in a drying furnace for drying to obtain medicine core powder; the drying furnace comprises a heat insulation roller 1, a drying cylinder 2, a material pipe 3, a valve 4, a heating plate 5, a drying assembly 6, a rotating assembly 7, a blanking assembly 8, a bottom plate 9 and a convex plate 10, wherein the drying cylinder 2 is welded on the inner wall of one side of the heat insulation roller 1, the material pipe 3 is welded on the outer wall of one side of the heat insulation roller 1 corresponding to the drying cylinder 2 in a penetrating way, and the material pipe 3 is communicated with the drying cylinder 2, the valve 4 is arranged on the outer wall of the material pipe 3, a plurality of heating plates 5 are arranged on the inner wall of the heat insulation roller 1, the drying assembly 6 is arranged on the outer wall of the drying cylinder 2, the rotating assembly 7 is arranged on the outer wall of the heat insulation roller 1, the blanking assembly 8 is arranged on the outer wall at the bottom end of the rotating assembly 7, when the material is discharged into the drying cylinder 2, the material port of the material pipe 3 is rotated to the upward direction, the valve 4 is opened, the raw materials are put into the drying cylinder 2 through the material pipe 3, and during discharging, a material port of the material pipe 3 is rotated to the downward direction;
the rotating component 7 comprises annular supports 71, annular grooves 72, annular sliders 73, a rotating motor 74, belt wheels 75, belts 76 and belt grooves 77, two annular supports 71 are sleeved on the outer wall of the heat insulation roller 1, the annular grooves 72 are formed in the inner wall of the annular supports 71, the annular sliders 73 are welded on the outer wall of the heat insulation roller 1 corresponding to the annular grooves 72, the outer wall of each annular slider 73 is attached to the inner wall of the corresponding annular groove 72, the rotating motor 74 is installed on the outer wall of one side of each annular support 71, one end of an output shaft of the rotating motor 74 is sleeved with each belt wheel 75, the outer wall of each belt wheel 75 is sleeved with each belt 76, the belt grooves 77 are formed in the outer wall of the heat insulation roller 1 corresponding to the belts 76, the other end of each belt 76 is sleeved in the corresponding belt groove 77, two convex plates 10 are fixed on the inner wall of the drying cylinder 2, so that the raw materials of the drying cylinder 2 can be dried conveniently, the drying effect is good and uniform, and the working efficiency is improved, the rotating motor 74 drives the belt wheel 75 to rotate, the belt wheel 75 drives the heat insulation roller 1 and the drying cylinder 2 to rotate through the matching of the belt 76 and the belt groove 77, and the drying cylinder 2 is heated through the matching of the upper heating plate 5, so that the raw material is heated, and the raw material is dried uniformly;
the drying component 6 comprises a spiral pipe 61, a blowing hole 62, a bearing sleeve 63, an air blower 64 and a connecting steel pipe 65, the spiral pipe 61 is installed on the outer wall of the drying cylinder 2 in the heat insulation roller 1, the bearing sleeve 63 is rotatably installed on one end of the spiral pipe 61 penetrating through the outer wall of the heat insulation roller 1, the connecting steel pipe 65 is inserted into the other end of the bearing sleeve 63, the connecting steel pipe 65 is rotatably connected with the bearing sleeve 63, the air blower 64 is installed on one side of an annular support 71 corresponding to the connecting steel pipe 65, the air outlet of the air blower 64 is connected with one end of the connecting steel pipe 65, the raw materials in the drying cylinder 2 are further dried, the drying efficiency is further improved, the air blower 64 is started, wind generated by the air blower 64 is blown into the drying cylinder 2 from the blowing hole 62 through the connecting steel pipe 65 and the spiral pipe 61, the drying is perfect, the heating of the spiral pipe 61 is performed through the heating plate 5, and the blown wind is hot wind, the drying efficiency is further improved;
the blanking assembly 8 comprises a first supporting plate 81, a second supporting plate 82, a third supporting plate 83, a fixing plate 84, a moving groove 85, a moving rod 86, a hydraulic cylinder 87 and a lantern ring 88, two first supporting plates 81 are welded on the outer wall of the bottom end of the annular support 71, the third supporting plate 83 is rotatably installed on the bottom ends of the two first supporting plates 81 close to the material pipe 3, the second supporting plate 82 is rotatably installed on the bottom ends of the other two first supporting plates 81, a bottom plate 9 is welded on the bottom end between the second supporting plates 82, the moving rod 86 is rotatably installed on the outer wall between the third supporting plates 83, the lantern ring 88 is sleeved on the outer wall of the middle part of the moving rod 86, the hydraulic cylinder 87 is fixed on the outer wall of the top end of the bottom plate 9 on one side of the lantern ring 88, one end of a telescopic shaft of the hydraulic cylinder 87 is fixed on the outer wall of the lantern ring 88, the fixing plate 84 is welded on the outer walls of the top ends of the bottom plate 9 on two sides of the third supporting plates 83, the outer wall of the fixed plate 84 is provided with a moving groove 85 corresponding to the moving rod 86 in a penetrating manner, the outer wall of the moving rod 86 is attached to the inner wall of the moving groove 85, the structure is simple, the operation is convenient, the blanking is convenient, the material is perfect and practical, the hydraulic cylinder 87 is started, the hydraulic cylinder 87 drives the moving rod 86 to move through the lantern ring 88, the moving rod 86 drives the third supporting plate 83 to move, the heat insulation roller 1 and the drying roller 2 are inclined towards one side of the material pipe 3 through the matching with the second supporting plate 82, and the material is convenient to discharge;
thirdly, placing the steel strip on a strip placing machine, rewinding the steel strip, cleaning the steel strip through a forming machine, rolling the steel strip into a U-shaped groove, adding the medicinal powder obtained in the second step into the U-shaped groove, controlling the filling rate of the flux-cored powder to be 23% -26%, sealing the steel strip through the forming machine, reducing the diameter to 2.8mm to obtain a semi-finished welding wire product, then performing wire drawing, performing drawing and reducing the diameter of the semi-finished welding wire product through a wire drawing machine to 1.6mm to obtain the flux-cored welding wire;
and step four, finally, coiling the finished welding wire layer, packaging and warehousing.
The weld metal welding tests were performed on the three stainless steel self-shielded flux-cored wires of examples 1 to 3, respectively, the sample preparation, the sampling standard and the mechanical property test were performed according to the regulations of the GB/T17853-2018 standard, and the 2205 duplex stainless steel was used as a comparative example, and the test results are shown in the following table:
TABLE 1
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The self-protection flux-cored wire for low-temperature steel comprises a steel strip and powder filled in the steel strip, and is characterized in that the flux core is prepared by mixing 30-31 wt% of barium fluoride, 8-12 wt% of ferrosilicon, 0.4-0.6 wt% of electrolytic manganese, 4-6 wt% of silicomanganese, 12-14 wt% of aluminum magnesium powder, 1-3 wt% of graphite, 9-11 wt% of aluminum powder, 2-4 wt% of marble, 5-7 wt% of ferromolybdenum, 14-16 wt% of ferrochromium and the balance of iron powder.
2. The self-shielded flux-cored wire for low-temperature steel according to claim 1, wherein the weight percentage of molybdenum in the ferromolybdenum is 25% to 35%, the weight percentage of aluminum in the aluminum-magnesium powder is 45% to 50%, the weight percentage of chromium in the ferrochromium is 50% to 55%, and the weight percentage of silicon in the ferrosilicon is 32% to 40%.
3. The self-shielded flux-cored wire for low-temperature steel of claim 1, wherein the filling rate of the flux-cored wire is 23-26%.
4. The self-shielded flux-cored wire for low-temperature steel according to claim 1, wherein the steel strip has a composition of 304L and a thickness x width of 0.35mm x 10 mm.
5. The preparation method of the self-shielded flux-cored wire for the low-temperature steel according to claim 1, which is characterized by comprising the following specific steps of:
step one, weighing 30-31% of barium fluoride, 8-12% of ferrosilicon, 0.4-0.6% of electrolytic manganese, 4-6% of silicomanganese, 12-14% of aluminum magnesium powder, 1-3% of graphite, 9-11% of aluminum powder, 2-4% of marble, 5-7% of ferromolybdenum, 14-16% of ferrochrome and the balance of iron powder according to the mass percentage, wherein the sum of the mass percentages of the components is 100%;
step two, adding the barium fluoride, electrolytic manganese, silicomanganese, graphite, aluminum magnesium powder and marble weighed in the step one into a water glass binder, uniformly mixing, placing the mixture into a heating furnace, sintering, discharging, sieving, screening with the granularity being less than or equal to 55 meshes to obtain mixed powder A, weighing aluminum powder, marble, ferromolybdenum, ferrochromium and iron powder, stirring and mixing the powder A at the stirring speed of 750r/min for 20min, uniformly mixing, and placing the mixture in a drying furnace for drying to obtain medicine core powder;
thirdly, placing the steel strip on a strip placing machine, rewinding the steel strip, cleaning the steel strip through a forming machine, rolling the steel strip into a U-shaped groove, adding the medicinal powder obtained in the second step into the U-shaped groove, controlling the filling rate of the flux-cored powder to be 23% -26%, sealing the steel strip through the forming machine, reducing the diameter to 2.8mm to obtain a semi-finished welding wire product, then performing wire drawing, performing drawing and reducing the diameter of the semi-finished welding wire product through a wire drawing machine to 1.6mm to obtain the flux-cored welding wire;
and step four, finally, coiling the finished welding wire layer, packaging and warehousing.
6. The method for preparing the self-shielded flux-cored wire for the low-temperature steel as recited in claim 1, wherein in the second step, the sintering temperature is 450-600 ℃, and the sintering time is 1.5-3 h.
7. The self-protecting flux-cored wire for low-temperature steel as claimed in claim 1, wherein in the second step, the drying temperature is 150-.
8. The preparation method of the self-protecting flux-cored wire for the low-temperature steel according to claim 1, wherein the drying furnace in the second step comprises a heat-insulating roller (1), a drying cylinder (2), a material pipe (3), a valve (4), heating plates (5), a drying assembly (6), a rotating assembly (7), a blanking assembly (8), a bottom plate (9) and a convex plate (10), wherein the drying cylinder (2) is welded on the inner wall of one side of the heat-insulating roller (1), the material pipe (3) is welded on the outer wall of one side of the heat-insulating roller (1) corresponding to the drying cylinder (2) in a penetrating manner, the material pipe (3) is communicated with the drying cylinder (2), the valve (4) is installed on the outer wall of the material pipe (3), the heating plates (5) are installed on the inner wall of the heat-insulating roller (1), the drying assembly (6) is arranged on the outer wall of the drying cylinder (2), a rotating assembly (7) is arranged on the outer wall of the heat insulation roller (1), and a blanking assembly (8) is arranged on the outer wall of the bottom end of the rotating assembly (7);
the rotating assembly (7) comprises an annular support (71), an annular groove (72), an annular sliding block (73), a rotating motor (74), a belt wheel (75), a belt (76) and a belt groove (77), wherein the two annular supports (71) are sleeved on the outer wall of the heat insulation roller (1), the annular groove (72) is formed in the inner wall of the annular support (71), the annular sliding block (73) is welded on the outer wall of the heat insulation roller (1) corresponding to the annular groove (72), the outer wall of the annular sliding block (73) is attached to the inner wall of the annular groove (72), the rotating motor (74) is installed on the outer wall of one side of the annular support (71), the belt wheel (75) is sleeved on one end of the output shaft of the rotating motor (74), the belt (76) is sleeved on the outer wall of the belt wheel (75), the belt groove (77) is formed in the outer wall of the heat insulation roller (1) corresponding to the belt (76), and the other end of the belt (76) is sleeved in the belt groove (77), and two convex plates (10) are fixed on the inner wall of the drying cylinder (2).
9. The preparation method of the self-protecting flux-cored wire for the low-temperature steel according to claim 8, wherein the drying assembly (6) comprises a spiral tube (61), a blowing hole (62), a bearing sleeve (63), an air blower (64) and a connecting steel tube (65), the spiral tube (61) is installed on the outer wall of the drying drum (2) in the heat insulation drum (1), the bearing sleeve (63) is rotatably installed on one end, penetrating through the outer wall of the heat insulation drum (1), of the spiral tube (61), the connecting steel tube (65) is inserted into the other end of the bearing sleeve (63), the connecting steel tube (65) is rotatably connected with the bearing sleeve (63), the air blower (64) is installed on the corresponding connecting steel tube (65) on one side of the annular support (71), and an air outlet of the air blower (64) is connected with one end of the connecting steel tube (65).
10. The preparation method of the self-protecting flux-cored wire for the low-temperature steel according to claim 8, wherein the blanking assembly (8) comprises a first supporting plate (81), a second supporting plate (82), a third supporting plate (83), a fixing plate (84), a moving groove (85), a moving rod (86), a hydraulic cylinder (87) and a collar (88), two first supporting plates (81) are welded on the outer wall of the bottom end of the annular support (71), the third supporting plate (83) is rotatably installed on the bottom end, close to the material pipe (3), of the two first supporting plates (81), the second supporting plate (82) is rotatably installed on the bottom end of the other two first supporting plates (81), a bottom plate (9) is welded on the bottom end between the second supporting plates (82), the moving rod (86) is rotatably installed on the outer wall between the third supporting plates (83), and the collar (88) is sleeved on the outer wall of the middle part of the moving rod (86), the bottom plate (9) are located and are fixed with pneumatic cylinder (87) on the top outer wall of lantern ring (88) one side, and the one end of pneumatic cylinder (87) telescopic shaft is fixed in the outer wall of lantern ring (88), bottom plate (9) are located all welding on the top outer wall of third backup pad (83) both sides and have fixed plate (84), correspond carriage release lever (86) on the outer wall of fixed plate (84) and link up and have seted up shifting chute (85), and the outer wall of carriage release lever (86) and the inner wall laminating of shifting chute (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371704.4A CN114571135B (en) | 2022-04-11 | 2022-04-11 | Self-protection flux-cored wire for low-temperature steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371704.4A CN114571135B (en) | 2022-04-11 | 2022-04-11 | Self-protection flux-cored wire for low-temperature steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114571135A true CN114571135A (en) | 2022-06-03 |
| CN114571135B CN114571135B (en) | 2023-09-22 |
Family
ID=81778110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210371704.4A Active CN114571135B (en) | 2022-04-11 | 2022-04-11 | Self-protection flux-cored wire for low-temperature steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114571135B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707303A1 (en) * | 2005-03-31 | 2006-10-04 | Kabushiki Kaisha Kobe Seiko sho | Low alloy steel weld metal and flux cored wire |
| CN104999195A (en) * | 2015-07-21 | 2015-10-28 | 洛阳双瑞特种合金材料有限公司 | High-toughness and self-protection flux-cored wire for steel structure welding |
| CN205180240U (en) * | 2015-11-23 | 2016-04-27 | 东台市苏北油脂有限公司 | Vegetable seed drying -machine with telescoping device |
| CN109530960A (en) * | 2018-11-21 | 2019-03-29 | 武汉铁锚焊接材料股份有限公司 | It is a kind of suitable for the small dimension self-protection flux-cored wire of all-position welding and its application |
| CN110936060A (en) * | 2019-12-11 | 2020-03-31 | 天津市永昌焊丝有限公司 | Alkaline high-strength steel flux-cored wire |
| CN211651026U (en) * | 2019-11-05 | 2020-10-09 | 咸宁市剑春茶业合作社 | A drying device for tea processing |
| CN112605555A (en) * | 2020-12-04 | 2021-04-06 | 上海焊接器材有限公司 | Self-protection flux-cored wire and preparation method thereof |
| CN112894198A (en) * | 2021-01-20 | 2021-06-04 | 浙江鸿途焊接科技有限公司 | Self-protection flux-cored wire for ultralow-temperature high-manganese steel |
| CN112935625A (en) * | 2021-02-05 | 2021-06-11 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline all-position flux-cored wire capable of adapting to plateau climate |
| CN215724799U (en) * | 2021-10-09 | 2022-02-01 | 青岛欧维斯节能材料有限公司 | Zirconia powder drying device |
-
2022
- 2022-04-11 CN CN202210371704.4A patent/CN114571135B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707303A1 (en) * | 2005-03-31 | 2006-10-04 | Kabushiki Kaisha Kobe Seiko sho | Low alloy steel weld metal and flux cored wire |
| CN104999195A (en) * | 2015-07-21 | 2015-10-28 | 洛阳双瑞特种合金材料有限公司 | High-toughness and self-protection flux-cored wire for steel structure welding |
| CN205180240U (en) * | 2015-11-23 | 2016-04-27 | 东台市苏北油脂有限公司 | Vegetable seed drying -machine with telescoping device |
| CN109530960A (en) * | 2018-11-21 | 2019-03-29 | 武汉铁锚焊接材料股份有限公司 | It is a kind of suitable for the small dimension self-protection flux-cored wire of all-position welding and its application |
| CN211651026U (en) * | 2019-11-05 | 2020-10-09 | 咸宁市剑春茶业合作社 | A drying device for tea processing |
| CN110936060A (en) * | 2019-12-11 | 2020-03-31 | 天津市永昌焊丝有限公司 | Alkaline high-strength steel flux-cored wire |
| CN112605555A (en) * | 2020-12-04 | 2021-04-06 | 上海焊接器材有限公司 | Self-protection flux-cored wire and preparation method thereof |
| CN112894198A (en) * | 2021-01-20 | 2021-06-04 | 浙江鸿途焊接科技有限公司 | Self-protection flux-cored wire for ultralow-temperature high-manganese steel |
| CN112935625A (en) * | 2021-02-05 | 2021-06-11 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline all-position flux-cored wire capable of adapting to plateau climate |
| CN215724799U (en) * | 2021-10-09 | 2022-02-01 | 青岛欧维斯节能材料有限公司 | Zirconia powder drying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114571135B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105171277B (en) | A kind of preparation method of tinbase silver Graphene leadless composite solder | |
| CN104907721B (en) | Efficient flux coated brazingrod with strong adhesive force | |
| CN107877035B (en) | Stainless steel flux-cored wire and production method thereof | |
| CN104907727A (en) | Flux-cored silver solder and preparation method thereof | |
| CN101209508A (en) | Welding process of low temperature steel welding body case | |
| CN104907722A (en) | Brass flux-cored brazing filler metal with reducing agents and flow aids and preparation method thereof | |
| CN104907723A (en) | Flux-cored silver brazing filler metal with toughening alloy | |
| CN114986021A (en) | Flux-cored wire and preparation method and application thereof | |
| CN112643244B (en) | Self-protection flux-cored wire and preparation method thereof | |
| CN114571135A (en) | Self-protection flux-cored wire for low-temperature steel | |
| CN113579555A (en) | Zinc-aluminum flux-cored brazing filler metal for copper-aluminum brazing and preparation method thereof | |
| CN101920413B (en) | Surfacing and repairing flux-cored wire of hot forging die | |
| CN101556837A (en) | High temperature lead-free carbon paste and preparation method thereof | |
| CN102615452B (en) | Production process of soldering flux for submerged-arc welding | |
| CN109128574B (en) | Steel powder core wire for electric arc deposition additive manufacturing and preparation method thereof | |
| CN105234578B (en) | A kind of submerged-arc welding combined sintering solder flux peculiar to vessel and preparation method thereof | |
| CN104191099A (en) | WC particle reinforced composite brazing filler metal used for brazing hard alloy and preparation method thereof | |
| GB2416174A (en) | Cored wire for adding titanium to molten steel | |
| CN112404789A (en) | Formula and process of self-shielded flux-cored wire | |
| CN103934589A (en) | Aluminum-based quasi-crystal alloy composite brazing solder for ceramic or glass | |
| CN111673316A (en) | Fluorine-alkali sintered flux and preparation method and application thereof | |
| CN104588904A (en) | High-tenacity and low-yield-ratio flux-cored wire and preparing method thereof | |
| CN115846940A (en) | Welding rod for repairing cold-work die and preparation method thereof | |
| US4133473A (en) | Method for brazing ferromagnetic materials | |
| CN106736038A (en) | A kind of aluminum steel Thermofusion welding agent |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |