CN108544141A - WH80 and 20Mn23Al self-protection flux-cored wires and preparation method thereof - Google Patents
WH80 and 20Mn23Al self-protection flux-cored wires and preparation method thereof Download PDFInfo
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- CN108544141A CN108544141A CN201810214119.7A CN201810214119A CN108544141A CN 108544141 A CN108544141 A CN 108544141A CN 201810214119 A CN201810214119 A CN 201810214119A CN 108544141 A CN108544141 A CN 108544141A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—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
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
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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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
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Abstract
WH80 disclosed by the invention and 20Mn23Al self-protection flux-cored wires, including medicine core and crust, wherein medicine core include：Chromium powder 8% 14%, nickel powder 3% 6%, molybdenum powder 1% 3.5%, manganese powder 4% 9%, Antaciron 0.5% 1.5%, magnesium alloy 2% 6%, ferrocolumbium 0.5% 1.5%, ferro-titanium 0.5% 1.5%, barium fluoride 10% 14%, magnesia 8% 16%, aluminium oxide 1% 4%, ceric fluoride 1.5% 3%, quartz 1.5% 3%, rutile 17% 25%, zircon sand 2% 7%, lithium carbonate 1% 3%, calcium carbonate 0.5% 1.5%, iron oxide 2% 6%, fluorite 2% 4%, mica 2% 4%.The invention also discloses the preparation method of the flux-cored wire, which splashes less, and flue dust is few, is suitable for automatic welding device, and production efficiency is high.
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 use from
Flux-cored wire is protected, the invention further relates to the preparation methods of the self-protection 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 and WH80 stainless steels therefore can be resolved, so that it may to save a large amount of former materials
Material reduces transformer cost, improves product competitiveness.
Self-protection flux-cored wire under conditions of no adscititious gases are protected due to being welded, so being wanted in medicine core
A certain amount of solder flux is added, relies primarily on the slag of flux-cored wire itself generation, gas is protected welding pool, welded simultaneously
It also needs that a certain amount of deoxidier is added in agent, such as ferrosilicon, ferromanganese, magnalium component remove the objectionable impurities oxygen element in molten bath.
It is needed in solder flux used in self-protection flux-cored wire containing slag former, gas-forming agent, deoxidier, three kinds of ingredients, from slag making, gas making takes off
Oxygen, three levels protect molten bath, can be only achieved ideal protecting effect.
Invention content
The object of the present invention is to provide WH80 and 20Mn23Al self-protection flux-cored wires, which can protect being not added with
Welding in the case of shield gas.
It is a further object to provide the preparation methods of the flux-cored wire.
The technical solution adopted in the present invention is, WH80 and 20Mn23Al self-protection flux-cored wires, including medicine core and outer
Skin, wherein medicine core are composed of the following components by mass percentage：Hafnium metal powfer 8%-14%, metal nickel powder 3%-6%, metal molybdenum
Powder 1%-3.5%, manganese powder 4%-9%, ferro-silicon alloy powder 0.5%-1.5%, magnesium aluminum-alloy powder 2%-6%, ferrocolumbium
Powder 0.5%-1.5%, titanium ferroally powder 0.5%-1.5% are fluorinated barium dust 10%-14%, magnesium oxide powder 8%-16%, oxygen
Change aluminium powder 1%-4%, ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder 17%-25%,
Zircon sand powder 2%-7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, croci 2%-6%,
Fluorite powder 2%-4%, mica powder 2%-4%, the sum of above constituent mass percentage are 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 self-protection flux-cored wires
Preparation Method specifically operates according to the following steps：
Step 1. weighs hafnium metal powfer 8%-14%, metal nickel powder 3%-6%, metal molybdenum powder respectively by mass percentage
1%-3.5%, manganese powder 4%-9%, Antaciron powder 0.5%-1.5%, magnesium alloy powder 2%-6%, ferro-niobium close
Bronze end 0.5%-1.5%, ferro-titanium powder 0.5%-1.5% are fluorinated barium dust 10%-14%, magnesium oxide powder 8%-
16%, alumina powder 1%-4%, ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder
17%-25%, zircon sand powder 2%-7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, brown iron oxide
Last 2%-6%, fluorite powder 2%-4%, mica powder 2%-4%, the sum of above constituent mass percentage are 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved and obtains mixed-powder c；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c are fully ground mixing, obtain mixture d, then mixture d is placed in drying oven, at 220 DEG C
Lower drying 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 packs for use at disk.
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 self-protection flux-cored wires, the flux-cored wire solve existing
There is the problem more, appearance of weld is irregular and welding performance is poor of splashing in welding wire welding process.
(1) additional protective gas is not required to when the flux-cored wire welding, it can be achieved that self-shield is welded；
(2) flux-cored wire is used for the welding of WH80 and 20Mn23Al, can obtain having compared with high-tensile and corrosion resistance
Welding point；
(3) flux-cored wire has good welding usability, and spatter is few, and weld fumes is few.
(4) flux-cored wire is suitable for automatic welding device, has higher production efficiency.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
The WH80 of the present invention and 20Mn23Al self-protection flux-cored wires, including medicine core and crust, wherein medicine core press quality
Percentage is composed of the following components：Hafnium metal powfer 8%-14%, metal nickel powder 3%-6%, metal molybdenum powder 1%-3.5%, metal
Manganese powder 4%-9%, ferro-silicon alloy powder 0.5%-1.5%, magnesium aluminum-alloy powder 2%-6%, ferrocolumbium powder 0.5%-1.5%, titanium
Iron alloy powder 0.5%-1.5% is fluorinated barium dust 10%-14%, magnesium oxide powder 8%-16%, alumina powder 1%-4%,
Ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder 17%-25%, zircon sand powder 2%-
7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, croci 2%-6%, fluorite powder 2%-
4%, mica powder 2%-4%, the sum of above constituent mass percentage are 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.
The effect of each component is as follows in welding wire medicine core：
(1) hafnium metal powfer, chromium are the elements for forming and stablizing austenite strongly, austenitic area are reduced, with chromium content
Increase, the formability of some intermetallic phases (such as δ phases) increases.Its one side, which has, improves the corrosion proof effect of connector, separately
On the one hand also there is certain effect to the raising of intensity, the requirement for making welding point meet；
(2) metal nickel powder, Ni are austenitic formation and the element of stabilization, and certain solid solution can be also played in weld metal
Invigoration effect also has the function of improving welding point toughness；
(3) metal molybdenum powder, molybdenum are the essential elements for obtaining high intensity weld metal；It is right as a kind of high melting-point substance
Grain refinement is good, and is damaged less to plasticity and toughness while improving intensity；
(4) manganese powder, manganese role in welding is desulfating and deoxidation agent, prevents weldering from stomata being met to occur, and reaches beautiful
Practical effect；
(5) ferro-silicon alloy powder, ferrosilicon mainly plays the role of deoxidation, alloying, while also having certain fluxing effect, has
The nodularization and refinement for helping promote field trash, improve acicular ferrite nucleating rate, improve microstructures of weld metals, and then improve
The obdurability of weld(ing) deposit；
(6) titanium ferroally powder, ferrotianium mainly play deoxidation, have the function of certain slag making and alloying, may be used also
Improve seam organization, crystal grain thinning improves mechanical property.
(7) Al-Mg alloy powder alloy is that common deoxidation denitrifier, Al-Mg alloy powder have in self-protection flux-cored wire
The effect of deoxygenation, when welding, are easily combined with oxygen, to protect other components；
(8) ferrocolumbium powder, crystal grain thinning improve toughness；
(9) quartzy, it is slag former, when welding is melted by the effect of welding heat source, slag is formed, to protect molten drop golden
Category and welding pool, and improve appearance of weld；
(10) barium fluoride, it can improve slag physical and chemical performance, and adjustment slag fusing point, viscosity and surface tension increase molten
Slag mobility, it can also reduce the hydrogen content in deposited metal, prevent hydrogen blistering from generating, the ingredient typically as diluent and
Drop what hydrogen agent was added.
(11) rutile, its main component are TiO2, have the function of stabilising arc and adjustment slag physical and chemical performance, can adjust
Whole slag fusing point, surface tension, improves weld seam and takes off slag and appearance of weld viscosity, and it also has and makes metal with fine mist transition,
Reduce the effect splashed.
(12) aluminium oxide has the function of slag making, and when welding generates slag and protected to molten bath；Secondly high-melting-point is added
Slag fusing point can be improved in substance aluminium oxide, increases the viscosity of slag and surface tension thus can improve the weldability of flux-cored wire
Energy；
(13) magnesium oxide powder：Its main function is to ensure that slag has higher basicity, and have slag making and adjustment molten
The effects that slag melting point, viscosity.Due to ensureing that slag has higher basicity, S in weld metal, P, O can be effectively reduced
Equal impurity, to improve the mechanical property of weld metal.There is suitable fusing point, viscosity etc. since slag can be adjusted, it can
Improve slag covering, appearance of weld etc..
(14) zircon sand has zr element to be transitioned into deposited metals after the oxidized reduction reaction of zircon sand, can play thin
Crystalline substance is strengthened, and the effect of strength and toughness is improved；
(15) ceric fluoride plays purification crystal boundary, Grain refinement, is beneficial to eliminate solidification cracking, improves weld metal
Mechanical strength and toughness；
(16) lithium carbonate powder, lithium have protective effect to electric arc, and can form protection steam at molten drop tip prevents nitrogen from invading
Enter, in addition, lithium can also inhibit the boiling of nitrogen, while metallurgical performance is not adversely affected；
(17) calcium carbonate powder, that is, playing the role of slag making plays the role of gas making, can be well protected welding section；
(18) mainly there is fluxing effect, iron oxide can increase the mobility of molten iron for croci, iron oxide, improve
Appearance of weld, and play the role of stabilising arc；
(19) fluorite powder, main function is slag making, and in basic slag, it can reduce the fusing point of slag, viscosity and surface
Tension increases the mobility of slag, and fluorite is that gas in weld metal is easy to volatilize, it is possible to reduce in weld metal as strong diluent
Gaseous impurity, have certain dehydrogenation effect；
(20) mica powder plays slag former, can improve appearance of weld.
Difference lies in it is Self-protecting flux-cored wire, only slag former, does not need gas making with existing drug core component
Agent.
A kind of preparation method of such as above-mentioned WH80 and 20Mn23Al self-protection flux-cored wires, specifically according to the following steps
Operation：
Step 1. weighs hafnium metal powfer 8%-14%, metal nickel powder 3%-6%, metal molybdenum powder respectively by mass percentage
1%-3.5%, manganese powder 4%-9%, Antaciron powder 0.5%-1.5%, magnesium alloy powder 2%-6%, ferro-niobium close
Bronze end 0.5%-1.5%, ferro-titanium powder 0.5%-1.5% are fluorinated barium dust 10%-14%, magnesium oxide powder 8%-
16%, alumina powder 1%-4%, ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder
17%-25%, zircon sand powder 2%-7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, brown iron oxide
Last 2%-6%, fluorite powder 2%-4%, mica powder 2%-4%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved and obtains mixed-powder c；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c, which are fully ground, is mixed to get mixture d, then mixture d is placed in drying oven, at 220 DEG C
Drying 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 packs for use at disk.
The additive amount of sodium silicate binder is the 20% of mixture 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 18%-23%.
In step 4 by welding wire semi-finished product by drawing procedure by a diameter of 1.2-2.0mm of its drawing.
Specific embodiment is as follows：
Embodiment 1
Step 1. weighs hafnium metal powfer 8%, metal nickel powder 3%, metal molybdenum powder 3.5%, metal respectively by mass percentage
Manganese powder 9%, Antaciron powder 1%, magnesium alloy powder 4%, ferrocolumbium powder 1.5%, ferro-titanium powder 1%, fluorine
Change barium dust 14%, magnesium oxide powder 9%, alumina powder 2%, ceric fluoride powder 3%, quartz powder 2%, golden red mountain flour
End 22%, zircon sand powder 4%, lithium carbonate powder 3%, calcium carbonate powder 1%, croci 3%, fluorite powder 2%, cloud
Female powder end 4%, the sum of above constituent mass percentage are 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved to obtain mixed-powder c using the sieve that aperture is 80 mesh；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c are fully ground mixing, obtain mixture d, then mixture d is placed in drying oven, at 220 DEG C
Lower drying 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
It is drawn to a diameter of 1.2mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk packs for use at disk.
Self-protection flux-cored wire obtained by embodiment 1 is suitable for flux cored wire arc welding (FCAW), and welding current is
180-190A, weldingvoltage 21-25V.The performance of welding point meets requirement.
Embodiment 2
Step 1. weighs hafnium metal powfer 14%, metal nickel powder 6%, metal molybdenum powder 2%, manganese metal respectively by mass percentage
Powder 6%, Antaciron powder 1.5%, magnesium alloy powder 2%, ferrocolumbium powder 1%, ferro-titanium powder 1%, fluorination
Barium dust 13%, magnesium oxide powder 8%, alumina powder 3%, ceric fluoride powder 2%, quartz powder 3%, rutile powder
17%, zircon sand powder 7%, lithium carbonate powder 2%, calcium carbonate powder 1.5%, croci 4%, fluorite powder 4%, cloud
Female powder end 2%, the sum of above constituent mass percentage are 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved to obtain mixed-powder c using the sieve that aperture is 100 mesh；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c are fully ground, and are poured into mixer and are mixed to get mixture d, mixture d is then placed in baking
In dry stove, drying 2h obtains medicine core powder at 220 DEG C；
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 21%, 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
It is drawn to a diameter of 1.6mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk packs for use at disk.
Self-protection flux-cored wire obtained by embodiment 2 is suitable for flux cored wire arc welding (FCAW), and welding current is
175-185A, weldingvoltage 22-24V.The performance of welding point meets requirement.
Embodiment 3
Step 1. weighs hafnium metal powfer 13%, metal nickel powder 4%, metal molybdenum powder 1%, manganese metal respectively by mass percentage
Powder 4%, Antaciron powder 0.5%, magnesium alloy powder 3%, ferrocolumbium powder 0.5%, ferro-titanium powder 0.5%,
It is fluorinated barium dust 12%, magnesium oxide powder 16%, alumina powder 1.5%, ceric fluoride powder 1.5%, quartz powder
2.5%, rutile powder 25%, zircon sand powder 3%, lithium carbonate powder 2.5%, calcium carbonate powder 1%, croci
2.5%, fluorite powder 3%, mica powder 3%, the sum of above constituent mass percentage is 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed to obtain mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and mixed-powder c is obtained using the sieve that aperture is 120 mesh；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c, which are fully ground, is mixed to get mixture d, then mixture d is placed in drying oven, at 220 DEG C
Drying 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
It is drawn to a diameter of 2.0mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk packs for use at disk.
Self-protection flux-cored wire obtained by embodiment 3 is suitable for flux cored wire arc welding (FCAW), and welding current is
185-195A, weldingvoltage 23-26V.The performance of welding point meets requirement.
Embodiment 4
Step 1. weighs hafnium metal powfer 12%, metal nickel powder 5%, metal molybdenum powder 2.5%, metal respectively by mass percentage
Manganese powder 7%, Antaciron powder 1.5%, magnesium alloy powder 6%, ferrocolumbium powder 1.5%, ferro-titanium powder
1.5%, it is fluorinated barium dust 10%, magnesium oxide powder 10%, alumina powder 1%, ceric fluoride powder 3%, quartz powder
3%, rutile powder 20%, zircon sand powder 2%, lithium carbonate powder 2%, calcium carbonate powder 1%, croci 6%, firefly
Stone powder 2.5%, mica powder 2.5%, the sum of above constituent mass percentage are 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved to obtain mixed-powder c using the sieve that aperture is 80 mesh；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c, which are fully ground, is mixed to get mixture d, then mixture d is placed in drying oven, at 220 DEG C
Drying 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
It is drawn to a diameter of 1.8mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk packs for use at disk.
Flux-cored wire obtained by embodiment 4 is suitable for flux cored wire arc welding (FCAW), welding current 190-200A,
Weldingvoltage is 24-27V.The performance of welding point meets requirement.
Embodiment 5
Step 1. weighs hafnium metal powfer 11%, metal nickel powder 6%, metal molybdenum powder 3%, manganese metal respectively by mass percentage
Powder 8%, Antaciron powder 1%, magnesium alloy powder 5%, ferrocolumbium powder 1%, ferro-titanium powder 1%, barium fluoride
Powder 10.5%, magnesium oxide powder 12%, alumina powder 4%, ceric fluoride powder 2.5%, quartz powder 1.5%, golden red
Stone powder 19%, zircon sand powder 6%, lithium carbonate powder 1%, calcium carbonate powder 0.5%, croci 2%, fluorite powder
2%, mica powder 3%, the sum of above constituent mass percentage is 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, brown iron oxide
End, lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtains mixed-powder a by ground and mixed, in mixed powder
Appropriate sodium silicate binder is added in last a to be uniformly mixed, obtains mixture b, then mixture b is placed in heating furnace and is burnt
Knot, pulverizes, and is sieved to obtain mixed-powder c using the sieve that aperture is 120 mesh；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder,
Magnesium alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step
Rapid 2 obtained mixed-powder c are fully ground mixing, obtain mixture d, then mixture d is placed in drying oven, at 220 DEG C
Lower drying 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
It is drawn to a diameter of 1.2mm, obtains flux-cored wire；
Step 5. is stretched the flux-cored wire that step 4 obtains with wire drawing machine, and disk packs for use at disk.
Flux-cored wire obtained by embodiment 5 is suitable for flux cored wire arc welding (FCAW), welding current 195-205A,
Weldingvoltage is 22-25V.The performance of welding point meets requirement.
Claims (8)
1.WH80 and 20Mn23Al self-protection 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 8%-14%, metal nickel powder 3%-6%, metal molybdenum powder 1%-3.5%, metal
Manganese powder 4%-9%, ferro-silicon alloy powder 0.5%-1.5%, magnesium aluminum-alloy powder 2%-6%, ferrocolumbium powder 0.5%-1.5%, titanium
Iron alloy powder 0.5%-1.5% is fluorinated barium dust 10%-14%, magnesium oxide powder 8%-16%, alumina powder 1%-4%,
Ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder 17%-25%, zircon sand powder 2%-
7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, croci 2%-6%, fluorite powder 2%-
4%, mica powder 2%-4%, the sum of above constituent mass percentage are 100%.
2. WH80 as described in claim 1 and 20Mn23Al self-protection 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 self-protection 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 self-protection flux-cored wires, feature exist
In specifically operating according to the following steps：
Step 1. weighs hafnium metal powfer 8%-14%, metal nickel powder 3%-6%, metal molybdenum powder 1%- respectively by mass percentage
3.5%, manganese powder 4%-9%, Antaciron powder 0.5%-1.5%, magnesium alloy powder 2%-7%, ferrocolumbium powder
Last 0.5%-1.5%, ferro-titanium powder 0.5%-1.5% are fluorinated barium dust 10%-14%, magnesium oxide powder 8%-16%,
Alumina powder 1%-4%, ceric fluoride powder 1.5%-3%, quartz powder 1.5%-3%, rutile powder 17%-
25%, zircon sand powder 2%-7%, lithium carbonate powder 1%-3%, calcium carbonate powder 0.5%-1.5%, croci 2%-
6%, fluorite powder 2%-4%, mica powder 2%-4%, the sum of above constituent mass percentage are 100%；
The fluorination barium dust that step 2. weighs step 1, magnesium oxide powder, alumina powder, quartz powder, croci,
Lithium carbonate powder, calcium carbonate powder, fluorite powder, mica powder obtain mixed-powder a by ground and mixed, in mixed-powder a
The middle appropriate sodium silicate binder of addition is uniformly mixed, and obtains mixture b, then mixture b is placed in heating furnace and is sintered,
It pulverizes, and is sieved and obtains mixed-powder c；
The hafnium metal powfer that step 3. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Antaciron powder, magnalium
Alloy powder, ferrocolumbium powder, ferro-titanium powder, ceric fluoride powder, rutile powder, zircon sand powder and step 2
Obtained mixed-powder c is fully ground mixing, obtains mixture d, and then mixture d is placed in drying oven, is dried at 220 DEG C
Dry 2h obtains 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 packs for use at disk.
5. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al self-protection 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 self-protection 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 self-protection 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 self-protection 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.
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