CN108544126A - WH80 and 20Mn23Al gas-shielded flux-cored wires and preparation method thereof - Google Patents
WH80 and 20Mn23Al gas-shielded flux-cored wires and preparation method thereof Download PDFInfo
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- CN108544126A CN108544126A CN201810213687.5A CN201810213687A CN108544126A CN 108544126 A CN108544126 A CN 108544126A CN 201810213687 A CN201810213687 A CN 201810213687A CN 108544126 A CN108544126 A CN 108544126A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3608—Titania or titanates
-
- 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
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- Chemical & Material Sciences (AREA)
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- Nonmetallic Welding Materials (AREA)
Abstract
WH80 disclosed by the invention and 20Mn23Al gas-shielded flux-cored wires, including medicine core and crust, medicine core are composed of the following components：Chromium powder 11% 20%, nickel powder 5% 11%, molybdenum powder 4% 8%, manganese powder 7% 12%, Si Fe alloys 0.5% 3%, Nb Fe alloys 0.5% 1.5%, Ti Fe alloys 0.5% 1%, barium fluoride 12% 17%, magnesia 7% 14%, cerium oxide 0.5% 2.5%, quartz 1% 3%, rutile 15% 25%, zircon sand 2% 7%, fluorite 1% 3%, mica 1% 4%, remaining is iron powder, and the sum of above constituent mass percentage is 100%.The invention also discloses the preparation method of the flux-cored wire, flux-cored wire disclosed by the invention is used for high-tensile and corrosion proof welding point, and welding usability is good, splashes few, flue dust is suitable for automatic welding device less.
Description
Technical field
The invention belongs to welding material and preparation method thereof technical fields, and in particular to a kind of WH80 and 20Mn23Al gas
Flux-cored wire is protected, the invention further relates to the preparation methods of the gas-shielded flux-cored wire.
Background technology
WH80 steel is low-carbon and low-alloy high-strength steel, and quenched and tempered state WH80 steel has high intensity, good low-temperature impact toughness, resists
Lamellar tearing performance, lower aging sensitivity property coefficient.The steel uses the Design of Chemical Composition of low-carbon and low-alloy, is rolled with control
System and controlled cooling technique make WH80 have carbon equivalent more lower than traditional quenched and tempered steel and welding crack sensibility coefficient.
Nonmagnetic steel belongs to Fe-Mn-Al-C series austenitic metal materials, 20Mn23Al as the special low magnetic steel plate of transformer,
Be mainly used for transformer core pull rod, folder, oil tank wall, flange etc. require the component without magnetic, due to its magnetic conductivity is low and resistance
Rate is high.Eddy-current loss in magnetic field is minimum, and to improve the performance of transformer, therefore this ferrimanganic aluminium system low magnetic steel is
It is used widely in national transformer manufacturing factory.And good mechanical performance, it cuts, weld in processing and manufacturing, drilling, being bent
It is easy Deng same as common iron, compared with stainless steel, not only reduces material cost, enhances product performance, can also save processing
Expense.As long as the Welding Problems of 20Mn23Al nonmagnetic steels 316 stainless steels low with WH80 therefore can be resolved, so that it may a large amount of to save
Raw material reduce transformer cost, improve product competitiveness.
Invention content
The object of the present invention is to provide WH80 and 20Mn23Al gas-shielded flux-cored wires, solve existing welding wire and weld
The problem that splashing is more in journey, appearance of weld is irregular and welding performance is poor.
It is a further object to provide the preparation methods of WH80 and 20Mn23Al gas-shielded flux-cored wires.
The technical solution adopted in the present invention is, WH80 and 20Mn23Al gas-shielded flux-cored wires, including medicine core and outer
Skin, wherein medicine core are composed of the following components by mass percentage：Hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal
Molybdenum powder 4%-8%, manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-
Fe alloyed powder 0.5%-1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-
3%, rutile 15%-25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the above component
The sum of mass percent is 100%.
Other features of the present invention also reside in,
Skin material is 316 stainless steel belts.
The filling quality percentage of medicine core powder described in welding wire is the 18%-23% of welding wire gross mass.
Another technical solution of the present invention is a kind of system of such as above-mentioned WH80 and 20Mn23Al gas-shielded flux-cored wires
Preparation Method specifically operates according to the following steps：
Step 1. weighs hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal molybdenum powder respectively by mass percentage
4%-8%, manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-Fe conjunction
Bronze 0.5%-1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-3%, gold
Red stone 15%-25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the above constituent mass hundred
It is 100% to divide the sum of ratio；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, appropriate sodium silicate binder is added in mixed-powder a is uniformly mixed and mixed
Then mixture b is placed in heating furnace and is sintered, pulverizes by object b, and be sieved and obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, and U-type groove is rolled into closure using molding machine
Welding wire semi-finished product are obtained, welding wire semi-finished product are then obtained into flux-cored wire by drawing procedure drawing；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Other features of the present invention also reside in,
The additive amount of sodium silicate binder is the 20% of mixed powder b gross masses in step 2.
Sintering temperature in step 2 is 600-750 DEG C, sintering time 2-3h；The mesh size of sieving is 80-120 mesh.
The mass percent for filling medicine core powder in step 4 into U-type groove is the 18%-23% of welding wire gross mass.
In step 4 by welding wire semi-finished product by drawing procedure by a diameter of 1.2-2.0mm of its drawing.
The invention has the advantages that WH80 and 20Mn23Al gas-shielded flux-cored wires, solve existing welding wire welding
The problem that splashing is more in the process, appearance of weld is irregular and welding performance is poor.
(1) WH80 of the present invention and 20Mn23Al gas shielded gas-shielded flux-cored wires, for welding rod and solid welding wire,
Spatter is few, and appearance of weld is beautiful, has good welding procedure.
(2) flux-cored wire is welded for WH80 and 20Mn23Al with gas shielded, can obtain having compared with high-tensile and
Corrosion proof welding point.
(3) invention flux-cored wire is suitable for automatic welding device, has higher production efficiency.
(4) preparation method of WH80 and 20Mn23Al gas-shielded flux-cored wires of the invention, it is simple, convenient, it fits
Close mass production.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
The WH80 of the present invention and 20Mn23Al gas-shielded flux-cored wires, including medicine core and crust, wherein medicine core press quality
Percentage is composed of the following components：Hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal molybdenum powder 4%-8%, metal
Manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-Fe alloy powder 0.5%-
1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-3%, rutile 15%-
25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the sum of above constituent mass percentage
It is 100%.
Skin material is 316 stainless steel belts.
The filling quality percentage of medicine core powder is the 18%-23% of welding wire gross mass in welding wire.
Flux-cored arc welding, which connects, is suitable for all-position welding.
The effect of each component in medicine core：Crome metal can significantly improve the corrosion proof ability of weld metal, make weld seam
Corrosion resistance can reach the requirement used；Metallic nickel has the function of improving welding point toughness；Quartz, calcirm-fluoride, golden red
Stone, has the function of slag making, and when welding generates slag and protected to molten bath；Calcirm-fluoride is basic slag, quartz, rutile, three
Person is used cooperatively, and can adjust the basicity of slag.
A kind of preparation method such as above-mentioned WH80 and 20Mn23Al gas-shielded flux-cored wires of the present invention, specifically according to
Following steps operate：
Step 1. weighs hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal molybdenum powder respectively by mass percentage
4%-8%, manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-Fe conjunction
Bronze 0.5%-1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-3%, gold
Red stone 15%-25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the above constituent mass hundred
It is 100% to divide the sum of ratio；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, appropriate sodium silicate binder is added in mixed-powder a is uniformly mixed and mixed
Then mixture b is placed in heating furnace and is sintered, pulverizes by object b, and be sieved and obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, and U-type groove is rolled into closure using molding machine
Welding wire semi-finished product are obtained, welding wire semi-finished product are then obtained into flux-cored wire by drawing procedure drawing；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
The additive amount of sodium silicate binder is the 20% of mixed powder b gross masses in step 2.
Sintering temperature in step 2 is 600-750 DEG C, sintering time 2-3h；The sieve aperture of sieving is 80-120 mesh.
The mass percent for filling medicine core powder in step 4 into U-type groove is the 18%-23% of welding wire gross mass.
In step 4 by welding wire semi-finished product by drawing procedure by a diameter of 1.2-2.0mm of its drawing.
The effect of each component in medicine core：Crome metal can significantly improve the corrosion proof ability of weld metal, make weld seam
Corrosion resistance can reach the requirement used；Metallic nickel has the function of improving welding point toughness；Quartz, calcirm-fluoride, golden red
Stone, has the function of slag making, and when welding generates slag and protected to molten bath；Calcirm-fluoride is basic slag, quartz, rutile, three
Person is used cooperatively, and can adjust the basicity of slag, specifically：(1) chromium is the element for forming and stablizing austenite strongly, is reduced difficult to understand
The areas Shi Ti, with the increase of chromium content, the formability of some intermetallic phases (such as δ phases) increases, and Cr elements also have notable
The corrosion proof ability of weld metal is improved, the corrosion resistance of weld seam is enable to reach the requirement used；(2) nickel powder：Ni is austenite
The element formed and stablized can also play certain solution strengthening effect in weld metal, also have raising welding point tough
The effect of property；(3) molybdenum powder：Molybdenum is the essential element for obtaining high intensity weld metal；It is as a kind of high melting-point substance, to refinement
Crystal grain function well, and plasticity and toughness are damaged less while improving intensity；(4) manganese powder：Manganese role in welding is
Desulfating and deoxidation agent prevents weldering from stomata being met to occur, achievees the effect that both artistic and practical；(5) Si-Fe alloyed powders：Ferrosilicon mainly have deoxidation,
The effect of alloying, while also there is certain fluxing effect, the nodularization and refinement of field trash are peomoted, needle-shaped iron is improved
Ferritic nucleation rate improves microstructures of weld metals, and then improves the obdurability of weld(ing) deposit；(6) Nb-Fe alloyed powders：
Crystal grain thinning improves toughness；(7) Ti-Fe alloy powder：Ferrotianium mainly plays deoxidation, also certain slag making and alloying
Effect, can also improve seam organization, crystal grain thinning improves mechanical property；(8) barium fluoride：It can improve slag materialization
Can, adjustment slag fusing point, viscosity and surface tension increase slag fluidity, it can also reduce the hydrogen content in deposited metal, prevent
Only hydrogen blistering generates, and the ingredient is typically as diluent and drop hydrogen agent；(9) magnesia：Its main function is to ensure slag
With higher basicity, and there is the effects that slag making and adjustment slag fusing point, viscosity, due to ensureing that slag has higher basicity,
Therefore it can be effectively reduced S in weld metal, the impurity such as P, O are molten due to that can adjust to improve the mechanical property of weld metal
Slag has suitable fusing point, viscosity etc., therefore slag covering, appearance of weld can be improved etc.；(10) cerium oxide：It can improve slag
Physical and chemical performance, adjustment slag fusing point, viscosity and surface tension, increases slag fluidity.It can also reduce the hydrogen in deposited metal
Content prevents hydrogen blistering from generating, which is added typically as diluent and drop hydrogen agent；(11) quartzy：For slag former, weldering
Melted by the effect of welding heat source when connecing, formed slag, to protect droplet metal and welding pool, and improve weld seam at
Type；(12) rutile：Its main component is TiO2, have the function of stabilising arc and adjustment slag physical and chemical performance, can adjust molten
Slag melting point, surface tension, improves the de- slag of weld seam and appearance of weld at viscosity.And it also makes metal with fine mist transition, reduces
The effect of splashing；(13) zircon sand：There is zr element to be transitioned into deposited metals after the oxidized reduction reaction of zircon sand, can play
Refined crystalline strengthening improves the effect of strength and toughness；(14) fluorite：Its main function is slag making, and in basic slag, it can reduce slag
Fusing point, viscosity and surface tension increase the mobility of slag, and fluorite is that gas in weld metal is easy to volatilize as strong diluent, can be with
The gaseous impurity in weld metal is reduced, there is certain dehydrogenation effect；(15) mica：It plays slag former, can improve weldering
It is seamed into type.
Embodiment 1
Step 1. weighs hafnium metal powfer 20%, metal nickel powder 5%, metal molybdenum powder 5%, manganese metal respectively by mass percentage
Powder 7%, Si-Fe alloyed powders 0.5%, Nb-Fe alloyed powders 1%, Ti-Fe alloy powder 1%, barium fluoride 13%, magnesia 7%, oxygen
Change cerium 1%, quartz 2%, rutile 18%, zircon sand 5%, fluorite 1%, mica 3%, iron powder 10.5%；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, the water glass that mass percent accounts for mixed-powder a mass 20% is added in mixed-powder a
Glass binder is uniformly mixed to obtain mixture b, and it is 600 DEG C of sintering 3h that then mixture b, which is placed in heating furnace in temperature,
Afterwards, it pulverizes, and is sieved in the sieve of 80 mesh using pore diameter range to obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 18%, and U-type groove is rolled into closure using molding machine and obtains welding wire semi-finished product, welding wire semi-finished product is then passed through into drawing procedure
Drawing is diameter 1.2mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Flux-cored wire obtained by embodiment 1 is suitable for flux cored wire arc welding (FCAW), additional protective gas, welding electricity
Stream is 165-190A, weldingvoltage 20-25V, protective gas CO2, gas flow rate 17L/min, the performance of welding point
Meet requirement.
Embodiment 2
Step 1. weighs hafnium metal powfer 11%, metal nickel powder 11%, metal molybdenum powder 7%, metal respectively by mass percentage
Manganese powder 9%, Si-Fe alloyed powders 1.5%, Nb-Fe alloyed powders 1.5%, Ti-Fe alloy powder 0.5%, barium fluoride 15%, magnesia
10%, cerium oxide 2%, quartz 3%, rutile 20%, zircon sand 4%, fluorite 1.5%, mica 3%, iron powder 7%；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, the water glass that mass percent accounts for mixed-powder a mass 20% is added in mixed-powder a
Glass binder is uniformly mixed to obtain mixture b, and it is 700 DEG C of sintering 4h that then mixture b, which is placed in heating furnace in temperature,
Afterwards, it pulverizes, and is sieved in the sieve of 100 mesh using pore diameter range to obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 19%, and U-type groove is rolled into closure using molding machine and obtains welding wire semi-finished product, welding wire semi-finished product is then passed through into drawing procedure
Drawing is diameter 1.6mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Flux-cored wire obtained by embodiment 2 is suitable for flux cored wire arc welding (FCAW), additional protective gas, welding electricity
Stream is 170-195A, weldingvoltage 19-24V, protective gas CO2, gas flow rate 17L/min, the performance of welding point
Meet requirement.
Embodiment 3
Step 1. weighs hafnium metal powfer 15%, metal nickel powder 10%, metal molybdenum powder 8%, metal respectively by mass percentage
Manganese powder 8%, Si-Fe alloyed powders 1.5%, Nb-Fe alloyed powders 0.5%, Ti-Fe alloy powder 1%, barium fluoride 12%, magnesia
14%, cerium oxide 2.5%, quartz 1%, rutile 22%, zircon sand 2%, fluorite 1%, mica 1%, iron powder 0.5%；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, the water glass that mass percent accounts for mixed-powder a mass 20% is added in mixed-powder a
Glass binder is uniformly mixed to obtain mixture b, and it is 650 DEG C of sintering that then mixture b, which is placed in heating furnace in temperature,
It after 3.5h, pulverizes, and is sieved in the sieve of 120 mesh using pore diameter range to obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 20%, and U-type groove is rolled into closure using molding machine and obtains welding wire semi-finished product, welding wire semi-finished product is then passed through into drawing procedure
Drawing is diameter 2mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Flux-cored wire obtained by embodiment 3 is suitable for flux cored wire arc welding (FCAW), additional protective gas, welding electricity
Stream is 160-185A, weldingvoltage 22-26V, protective gas CO2, gas flow rate 17L/min, the performance of welding point
Meet requirement.
Embodiment 4
Step 1. weighs hafnium metal powfer 11%, metal nickel powder 8%, metal molybdenum powder 4%, manganese metal respectively by mass percentage
Powder 12%, Si-Fe alloyed powders 3%, Nb-Fe alloyed powders 1%, Ti-Fe alloy powder 1%, barium fluoride 17%, magnesia 9%, oxidation
Cerium 0.5%, quartz 1%, rutile 25%, zircon sand 3%, fluorite 1%, mica 1.5%, iron powder 2%；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, the water glass that mass percent accounts for mixed-powder a mass 20% is added in mixed-powder a
Glass binder is uniformly mixed to obtain mixture b, and it is 600 DEG C of sintering that then mixture b, which is placed in heating furnace in temperature,
It after 3.5h, pulverizes, and is sieved in the sieve of 120 mesh using pore diameter range to obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 22%, and U-type groove is rolled into closure using molding machine and obtains welding wire semi-finished product, welding wire semi-finished product is then passed through into drawing procedure
Drawing is diameter 1.8mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Flux-cored wire obtained by embodiment 4 is suitable for flux cored wire arc welding (FCAW), additional protective gas, welding electricity
Stream is 175-195A, weldingvoltage 20-24V, protective gas CO2, gas flow rate 17L/min, the performance of welding point
Meet requirement.
Embodiment 5
Step 1. weighs hafnium metal powfer 16%, metal nickel powder 6%, metal molybdenum powder 6%, manganese metal respectively by mass percentage
Powder 10%, Si-Fe alloyed powders 2.5%, Nb-Fe alloyed powders 0.5%, Ti-Fe alloy powder 0.5%, barium fluoride 16%, magnesia
8%, cerium oxide 1.5%, quartz 2.5%, rutile 15%, zircon sand 7%, fluorite 3%, mica 4%, iron powder 1.5%；
Step 2. leads to the fluorination barium dust that step 1 weighs, magnesium oxide powder, quartz powder, fluorite powder, mica powder
It crosses ground and mixed and obtains mixed-powder a, the water glass that mass percent accounts for mixed-powder a mass 20% is added in mixed-powder a
Glass binder is uniformly mixed to obtain mixture b, and it is 700 DEG C of sintering 3h that then mixture b, which is placed in heating furnace in temperature,
Afterwards, it pulverizes, and is sieved in the sieve of 120 mesh using pore diameter range to obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
What ferrocolumbium powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtained
Mixed-powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, dried at 220 DEG C
2h obtains medicine core powder；
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 4., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 23%, and U-type groove is rolled into closure using molding machine and obtains welding wire semi-finished product, welding wire semi-finished product is then passed through into drawing procedure
Drawing is diameter 1.2mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed at disk up to gas shielded medicine core
Welding wire.
Flux-cored wire obtained by embodiment 5 is suitable for flux cored wire arc welding (FCAW), additional protective gas, welding electricity
Stream is 185-200A, weldingvoltage 19-23V, protective gas CO2, gas flow rate 17L/min, the performance of welding point
Meet requirement.
Claims (8)
1.WH80 and 20Mn23Al gas-shielded flux-cored wires, which is characterized in that including medicine core and crust, wherein medicine core presses quality
Percentage is composed of the following components：Hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal molybdenum powder 4%-8%, metal
Manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-Fe alloy powder 0.5%-
1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-3%, rutile 15%-
25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the sum of above constituent mass percentage
It is 100%.
2. WH80 as described in claim 1 and 20Mn23Al gas-shielded flux-cored wires, which is characterized in that the skin material
For 316 stainless steel belts.
3. WH80 as described in claim 1 and 20Mn23Al gas-shielded flux-cored wires, which is characterized in that medicine described in welding wire
The filling quality percentage of core powder is the 18%-23% of welding wire gross mass.
4. a kind of preparation method of WH80 as claimed in claim 2 and 20Mn23Al gas-shielded flux-cored wires, feature exist
In specifically operating according to the following steps：
Step 1. weighs hafnium metal powfer 11%-20%, metal nickel powder 5%-11%, metal molybdenum powder 4%- respectively by mass percentage
8%, manganese powder 7%-12%, Si-Fe alloyed powder 0.5%-3%, Nb-Fe alloyed powder 0.5%-1.5%, Ti-Fe alloy powder
0.5%-1%, barium fluoride 12%-17%, magnesia 7%-14%, cerium oxide 0.5%-2.5%, quartzy 1%-3%, rutile
15%-25%, zircon sand 2%-7%, fluorite 1%-3%, mica 1%-4%, remaining is iron powder, the above constituent mass percentage
The sum of be 100%；
Fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, quartz powder, fluorite powder, mica powder are by grinding
Mill is mixed to get mixed-powder a, and appropriate sodium silicate binder is added in mixed-powder a and is uniformly mixed to obtain mixture b,
Then mixture b is placed in heating furnace and is sintered, pulverized, and be sieved and obtain mixed-powder c；
Hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder, ferro-niobium
The mixing that alloy powder, ferro-titanium powder, ceria oxide powder, rutile powder, zircon sand powder, iron powder and step 2 obtain
Powder c is fully ground uniformly mixed, obtains mixture d, then mixture d is placed in drying oven, and 2h is dried at 220 DEG C and is obtained
To medicine core powder；
Step 4. by 316 stainless steel belts be placed on flux-cored wire forming machine put band machine on, steel band is rolled by molding machine
At U-type groove, the medicine core powder that step 3 obtains then is added into U-type groove, and U-type groove is rolled into closure using molding machine and is obtained
Then welding wire semi-finished product are obtained flux-cored wire by welding wire semi-finished product by drawing procedure drawing；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk is sealed and welded up to gas shielded medicine core at disk
Silk.
5. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al gas-shielded flux-cored wires, feature exist
In the additive amount of sodium silicate binder is the 20% of mixed powder b gross masses in the step 2.
6. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al gas-shielded flux-cored wires, feature exist
In the sintering temperature in the step 2 is 600-750 DEG C, sintering time 2-3h；The mesh size of sieving is 80-120 mesh.
7. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al gas-shielded flux-cored wires, feature exist
In the mass percent for filling medicine core powder in the step 4 into U-type groove is the 18%-23% of welding wire gross mass.
8. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al gas-shielded flux-cored wires, feature exist
In, in the step 4 by welding wire semi-finished product by drawing procedure by a diameter of 1.2-2.0mm of its drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213687.5A CN108544126A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al gas-shielded flux-cored wires and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213687.5A CN108544126A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al gas-shielded flux-cored wires and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108544126A true CN108544126A (en) | 2018-09-18 |
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ID=63516367
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|---|---|---|---|
| CN201810213687.5A Withdrawn CN108544126A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al gas-shielded flux-cored wires and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367759A (en) * | 2022-01-11 | 2022-04-19 | 西安理工大学 | Welding wire capable of effectively controlling Fe-Al brittle phase and preparation and welding method |
| CN114986017A (en) * | 2022-07-19 | 2022-09-02 | 重庆大学 | Novel gas shielded welding wire for corrosion-resistant high-strength steel |
-
2018
- 2018-03-15 CN CN201810213687.5A patent/CN108544126A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367759A (en) * | 2022-01-11 | 2022-04-19 | 西安理工大学 | Welding wire capable of effectively controlling Fe-Al brittle phase and preparation and welding method |
| CN114367759B (en) * | 2022-01-11 | 2024-04-05 | 西安理工大学 | Welding wire capable of effectively controlling Fe-Al brittle phase and preparation and welding methods |
| CN114986017A (en) * | 2022-07-19 | 2022-09-02 | 重庆大学 | Novel gas shielded welding wire for corrosion-resistant high-strength steel |
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Application publication date: 20180918 |