CN108555479A - WH80 and 20Mn23Al metal flux-cored wires and preparation method thereof - Google Patents
WH80 and 20Mn23Al metal flux-cored wires and preparation method thereof Download PDFInfo
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- CN108555479A CN108555479A CN201810214120.XA CN201810214120A CN108555479A CN 108555479 A CN108555479 A CN 108555479A CN 201810214120 A CN201810214120 A CN 201810214120A CN 108555479 A CN108555479 A CN 108555479A
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- powder
- metal
- flux
- 20mn23al
- medicine core
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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
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
-
- 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
-
- 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
Abstract
WH80 disclosed by the invention and 20Mn23Al metal flux-cored wires, including medicine core and crust, wherein medicine core are made up of by mass percentage：Chromium powder 40% 50%, nickel powder 6% 15%, molybdenum powder 3% 13%, manganese powder 6% 13%, Si Fe alloyed powders 2% 6%, Nb Fe alloyed powders 1% 4%, Ti Fe alloyed powders 1% 2%, remaining is iron powder, and the sum of above constituent mass percentage is 100%.The invention also discloses the preparation methods of the flux-cored wire, above-mentioned powder mull mixing is weighed first, mixed powder is dried and grinds to obtain welding wire medicine core powder, crust is rolled into U-type groove, welding wire medicine core powder is added in U-type groove and rolls closure, its drawing is obtained into welding wire, finally stretches disk again into disk.Metal flux-cored wire welding process disclosed by the invention is splashed less, and flue dust is few, is suitable for automatic welding device, is had compared with high efficiency.
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 gold
Genotype flux-cored wire, the invention further relates to the preparation methods of the metal flux-cored wire.
Background technology
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.
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.Therefore
As long as the Welding Problems of 20Mn23Al nonmagnetic steels and WH80 mild steel can be resolved, so that it may to save a large amount of raw material, reduce and become
Depressor cost improves product competitiveness.
Invention content
The object of the present invention is to provide WH80 and 20Mn23Al metal flux-cored wires, solve traditional flux-cored wire
Deposition rate is slow, the problem that welding slag is more and diffusible hydrogen content is high.
It is a further object to provide the preparation methods of a kind of WH80 and 20Mn23Al metal flux-cored wires.
The technical solution adopted in the present invention is, WH80 and 20Mn23Al metal flux-cored wires, including medicine core and outer
Skin, wherein medicine core are composed of the following components by mass percentage：Hafnium metal powfer 40%-50%, metal nickel powder 6%-15%, metal
Molybdenum powder 3%-13%, manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy
Powder 1%-2%, remaining is iron powder, and the sum of above constituent mass percentage is 100%.
Its feature of the present invention also resides in,
Skin material is 316 stainless steel belts.
The filling quality percentage of medicine core powder described in welding wire is the 20%-25% 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 metal flux-cored wires
Preparation Method, which is characterized in that specifically operate according to the following steps：
Step 1. weighs hafnium metal powfer 40%-50%, metal nickel powder 6%-15%, metal molybdenum powder respectively by mass percentage
3%-13%, manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy powder
1%-2%, remaining is iron powder, and the sum of above constituent mass percentage is 100%；
Hafnium metal powfer that step 2. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Si-Fe alloyed powders,
Nb-Fe alloyed powders, Ti-Fe alloy powder and iron powder, which are fully ground, is mixed to get mixed powder a, is then positioned over mixed powder a
It is dried in drying oven, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
The medicine core powder；
Step 3. by 316 stainless steel belt be placed on flux-cored wire forming machine put band machine on, pass through molding machine will
316 stainless steel belt is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, and pass through molding
U-type groove is rolled closure by machine, obtains welding wire semi-finished product, its drawing is then obtained institute by welding wire semi-finished product progress drawing procedure again
State flux-cored wire；
Step 4. is stretched the flux-cored wire that step 3 obtains with wire drawing machine, and disk is packed at disk up to metal mold
Flux-cored wire.
Other features of the present invention also reside in,
Drying temperature in step 2 is 250-300 DEG C, drying time 2-2.5h.
The mass percent for filling medicine core powder in step 3 into U-type groove is the 20%-25% of welding wire gross mass.
Welding wire semi-finished product are subjected to drawing procedure by a diameter of 1.2-2.0mm of its drawing in step 3.
The invention has the advantages that WH80 and 20Mn23Al metal flux-cored wires, the flux-cored wire solve biography
The flux-cored wire deposition rate of system is slow, the problem that welding slag is more and diffusible hydrogen content is high.
(1) flux-cored wire is used for the welding of WH80 and 20Mn23Al, can obtain having compared with high-tensile and corrosion resistance
Welding point；
(2) flux-cored wire has good welding usability, and welding slag is few, and weld fumes is few, and diffusible hydrogen content is low,
The features such as appearance of weld is good, and deposited metal composition and mechanical property are easily adjusted；
(3) the flux-cored wire face of weld is bright and clean smooth, postwelding without cleaning, can continuous sequence, effectively increase welding
Production efficiency；It is suitable for automatic welding device, there is higher production efficiency；
(4) flux-cored wire preparation method of the present invention, it is simple for process, it is easy to operate, it is suitble to mass production.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
The WH80 of the present invention and 20Mn23Al metal flux-cored wires, including medicine core and crust, wherein medicine core press quality
Percentage is composed of the following components：Hafnium metal powfer 40%-50%, metal nickel powder 6%-15%, metal molybdenum powder 3%-13%, metal
Manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy powder 1%-2%, remaining is
Iron powder, 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 20%-25% of welding wire gross mass in welding wire.
The flux-cored wire of the present invention is suitable for gas metal-arc welding (GMAW), and welding current is that 190-220A voltages are
22-26V, protective gas CO2Or Ar, gas flow rate 15-20L/min.
The invention belongs to metal flux-cored wires, compared with traditional flux-cored wire, have deposition rate fast, welding slag
Few, weld fumes is few, and diffusible hydrogen content is low, and appearance of weld is good, and it is special that deposited metal composition and mechanical property are easily adjusted etc.
Point.
Cr is the element for forming and stablizing austenite strongly, reduces austenitic area.With the increase of chromium content, some metals
Between phase (such as δ phases) formability increase, Cr elements also have significantly improves the corrosion proof ability of weld metal, make weld seam
Corrosion resistance can reach the requirement used；W metal also has the function of improving welding point toughness；Mo and Mn, which also has, to be improved
The effect of weld strength；Ni can ensure that weld seam has certain toughness；Fe supplements remaining weight in medicine core, makes medicine core matter
Amount score reaches 100%.
A kind of preparation method of such as above-mentioned WH80 and 20Mn23Al metal flux-cored wires, specifically according to the following steps
Operation：
Step 1. weighs hafnium metal powfer 40%-50%, metal nickel powder 6%-15%, metal molybdenum powder respectively by mass percentage
3%-13%, manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy powder
1%-2%, remaining is iron powder, and the sum of above constituent mass percentage is 100%；
Hafnium metal powfer that step 2. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Si-Fe alloyed powders,
Nb-Fe alloyed powders, Ti-Fe alloy powder and iron powder, which are fully ground, is mixed to get mixed powder a, is then positioned over mixed powder a
It is dried in drying oven, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
Medicine core powder；
Step 3. by 316 stainless steel belts be placed on flux-cored wire forming machine put band machine on, by molding machine by 316 not
Rust steel steel band is rolled into U-type groove, then adds the obtained medicine core powder of step 2 into U-type groove, and by molding machine by U-type groove
Closure is rolled, welding wire semi-finished product are obtained, its drawing is then obtained into flux-cored wire by welding wire semi-finished product progress drawing procedure again；
Step 4. is stretched the flux-cored wire that step 3 obtains with wire drawing machine, and disk is sealed at disk up to metal mold medicine core
Welding wire.
Drying temperature in step 2 is 250-300 DEG C, drying time 2-2.5h.
The mass percent for filling medicine core powder in step 3 into U-type groove is the 20%-25% of welding wire gross mass.
Welding wire semi-finished product are subjected to drawing procedure by a diameter of 1.2-2.0mm of its drawing in step 3.
Specific embodiment is as follows：
Embodiment 1
Step 1. weighs hafnium metal powfer 40%, metal nickel powder 10%, metal molybdenum powder 3%, gold according to mass percent respectively
Belong to manganese powder 10%, Si-Fe alloyed powders 6%, Nb-Fe alloyed powders 2%, Ti-Fe alloy powder 1.5%, iron powder 27.5%.
Step 2., which is fully ground, is mixed to get mixed powder a, then mixed powder a is positioned in drying oven is in temperature
It at 250 DEG C, dries 2 hours, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
To medicine core powder.
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 3., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 20%, then U-type groove is rolled by closure by molding machine, and by a diameter of 1.2mm of its drawing, obtains flux-cored wire.
Step 4. is finally stretched flux-cored wire prepared by step 3 with wire drawing machine, and disk is sealed at disk up to metal mold medicine
Core welding wire.
Metal flux-cored wire obtained by embodiment 1 is suitable for gas metal-arc welding (GMAW), and welding current is
190-200A, weldingvoltage 22-24V, protective gas CO2, gas flow rate 15L/min.The performance of welding point meets
Requirement.
Embodiment 2
Step 1. weighs hafnium metal powfer 50%, metal nickel powder 6%, metal molybdenum powder 13%, gold according to mass percent respectively
Belong to manganese powder 8%, Si-Fe alloyed powders 4%, Nb-Fe alloyed powders 3%, Ti-Fe alloy powder 1%, iron powder 15%.
Step 2., which is fully ground, is mixed to get mixed powder a, then mixed powder a is positioned in drying oven is in temperature
It at 275 DEG C, dries 2.3 hours, removes the moisture that may contain, then regrind the mixed powder a after drying at powder
Obtain medicine core powder.
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 3., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 21%, then U-type groove is rolled by closure by molding machine, and by a diameter of 1.6mm of its drawing, obtains flux-cored wire.
Step 4. is finally stretched flux-cored wire prepared by step 3 with wire drawing machine, and disk is sealed at disk up to metal mold medicine
Core welding wire.
Metal flux-cored wire obtained by embodiment 2 is suitable for gas metal-arc welding (GMAW), and welding current is
200-210A, weldingvoltage 23-25V, protective gas CO2, gas flow rate 16L/min.The performance of welding point meets
Requirement.
Embodiment 3
Step 1. weighs hafnium metal powfer 45%, metal nickel powder 15%, metal molybdenum powder 10%, gold according to mass percent respectively
Belong to manganese powder 6%, Si-Fe alloyed powders 2%, Nb-Fe alloyed powders 1%, Ti-Fe alloy powder 2%, iron powder 19%.
Step 2., which is fully ground, is mixed to get mixed powder a, then mixed powder a is positioned in drying oven is in temperature
It at 300 DEG C, dries 2 hours, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
To medicine core powder.
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 3., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 22%, then U-type groove is rolled by closure by molding machine, and by a diameter of 2.0mm of its drawing, obtains flux-cored wire.
Step 4. is finally stretched flux-cored wire prepared by step 3 with wire drawing machine, and disk is sealed at disk up to metal mold medicine
Core welding wire.
Metal flux-cored wire obtained by embodiment 3 is suitable for gas metal-arc welding (GMAW), and welding current is
195-205A, weldingvoltage 21-24V, protective gas CO2, gas flow rate 15L/min.The performance of welding point meets
Requirement.
Embodiment 4
Step 1. weighs hafnium metal powfer 43%, metal nickel powder 12%, metal molybdenum powder 8%, gold according to mass percent respectively
Belong to manganese powder 13%, Si-Fe alloyed powders 5%, Nb-Fe alloyed powders 4%, Ti-Fe alloy powder 1.5%, iron powder 13.5%.
Step 2., which is fully ground, is mixed to get mixed powder a, then mixed powder a is positioned in drying oven is in temperature
It at 260 DEG C, dries 2 hours, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
To medicine core powder.
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 3., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 24%, then U-type groove is rolled by closure by molding machine, and by a diameter of 1.2mm of its drawing, obtains flux-cored wire.
Step 4. is finally stretched flux-cored wire prepared by step 3 with wire drawing machine, and disk packs for use at disk.
Metal flux-cored wire obtained by embodiment 4 is suitable for gas metal-arc welding (GMAW), and welding current is
190-205A, weldingvoltage 23-26V, protective gas CO2, gas flow rate 16L/min.The performance of welding point meets
Requirement.
Embodiment 5
Step 1. weighs hafnium metal powfer 47%, metal nickel powder 8%, metal molybdenum powder 6%, metal according to mass percent respectively
Manganese powder 12%, Si-Fe alloyed powders 3%, Nb-Fe alloyed powders 3%, Ti-Fe alloy powder 2%, iron powder 19%.
Step 2., which is fully ground, is mixed to get mixed powder a, then mixed powder a is positioned in drying oven is in temperature
It at 250 DEG C, dries 2 hours, removes the moisture that may contain, then the mixed powder a after drying is regrind and is obtained at powder
To medicine core powder.
316 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine by step 3., by molding machine by steel band
It is rolled into U-type groove, the medicine core powder that step 2 obtains then is added into U-type groove, controls the filling quality percentage of medicine core powder
It is 25%, then U-type groove is rolled by closure by molding machine, and by a diameter of 1.8mm of its drawing, obtains flux-cored wire.
Step 4. is finally stretched flux-cored wire prepared by step 3 with wire drawing machine, and disk is sealed at disk up to metal mold medicine
Core welding wire.
Metal flux-cored wire obtained by embodiment 5 is suitable for gas metal-arc welding (GMAW), and welding current is
190-220A, weldingvoltage 22-26V, protective gas CO2, gas flow rate 16L/min.The performance of welding point meets
Requirement.
Claims (7)
1.WH80 and 20Mn23Al metal 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 40%-50%, metal nickel powder 6%-15%, metal molybdenum powder 3%-13%, metal
Manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy powder 1%-2%, remaining is
Iron powder, the sum of above constituent mass percentage are 100%.
2. WH80 as described in claim 1 and 20Mn23Al metal 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 metal flux-cored wires, which is characterized in that medicine described in welding wire
The filling quality percentage of core powder is the 20%-25% of welding wire gross mass.
4. a kind of preparation method of WH80 as claimed in claim 2 and 20Mn23Al metal flux-cored wires, feature exist
In specifically operating according to the following steps：
Step 1. weighs hafnium metal powfer 40%-50%, metal nickel powder 6%-15%, metal molybdenum powder 3%- respectively by mass percentage
13%, manganese powder 6%-13%, Si-Fe alloyed powder 2%-6%, Nb-Fe alloyed powder 1%-4%, Ti-Fe alloy powder 1%-
2%, remaining is iron powder, and the sum of above constituent mass percentage is 100%；
Hafnium metal powfer that step 2. weighs step 1, metal nickel powder, metal molybdenum powder, manganese powder, Si-Fe alloyed powders, Nb-Fe
Alloyed powder, Ti-Fe alloy powder and iron powder, which are fully ground, is mixed to get mixed powder a, and mixed powder a is then positioned over drying oven
In dried, remove the moisture that may contain, then the mixed powder a after drying regrind and obtains the medicine at powder
Core powder；
316 stainless steel belt is placed on the putting on band machine of flux-cored wire forming machine by step 3., will be described by molding machine
316 stainless steel belts are rolled into U-type groove, then add the obtained medicine core powder of step 2 into U-type groove, and by molding machine by U
Type groove rolls closure, obtains welding wire semi-finished product, its drawing is then obtained the medicine by welding wire semi-finished product progress drawing procedure again
Core welding wire；
Step 4. is stretched the flux-cored wire that step 3 obtains with wire drawing machine, and disk is sealed and welded up to metal mold medicine core at disk
Silk.
5. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al metal flux-cored wires, feature exist
In the drying temperature in the step 2 is 250-300 DEG C, drying time 2-2.5h.
6. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al metal flux-cored wires, feature exist
In into U-type groove, filling medicine core powder is the 20%-25% of welding wire gross mass in the step 3.
7. a kind of preparation method of WH80 as claimed in claim 4 and 20Mn23Al metal flux-cored wires, feature exist
In welding wire semi-finished product are carried out drawing procedure by a diameter of 1.2-2.0mm of its drawing in the step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214120.XA CN108555479A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al metal flux-cored wires and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214120.XA CN108555479A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al metal flux-cored wires and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108555479A true CN108555479A (en) | 2018-09-21 |
Family
ID=63531727
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810214120.XA Withdrawn CN108555479A (en) | 2018-03-15 | 2018-03-15 | WH80 and 20Mn23Al metal flux-cored wires and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587179A (en) * | 2019-09-03 | 2019-12-20 | 西安理工大学 | Self-protection flux-cored wire for welding T2 copper and 304 stainless steel and preparation method thereof |
| CN114346512A (en) * | 2021-12-29 | 2022-04-15 | 西安理工大学 | Welding wire for alloy steel-stainless steel composite material transition layer and preparation method thereof |
| CN115319106A (en) * | 2022-08-26 | 2022-11-11 | 西安理工大学 | Powder core wire material for manufacturing flange for transformer based on electric arc additive manufacturing and method |
-
2018
- 2018-03-15 CN CN201810214120.XA patent/CN108555479A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587179A (en) * | 2019-09-03 | 2019-12-20 | 西安理工大学 | Self-protection flux-cored wire for welding T2 copper and 304 stainless steel and preparation method thereof |
| CN110587179B (en) * | 2019-09-03 | 2021-11-16 | 西安理工大学 | Self-protection flux-cored wire for welding T2 copper and 304 stainless steel and preparation method thereof |
| CN114346512A (en) * | 2021-12-29 | 2022-04-15 | 西安理工大学 | Welding wire for alloy steel-stainless steel composite material transition layer and preparation method thereof |
| CN115319106A (en) * | 2022-08-26 | 2022-11-11 | 西安理工大学 | Powder core wire material for manufacturing flange for transformer based on electric arc additive manufacturing and method |
| CN115319106B (en) * | 2022-08-26 | 2024-02-27 | 西安理工大学 | Powder core wire material and method for manufacturing flange for transformer based on arc additive |
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