CN107649798A - 25Cr2Ni4MoV steel metal flux-cored wire and preparation method - Google Patents
25Cr2Ni4MoV steel metal flux-cored wire and preparation method Download PDFInfo
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- CN107649798A CN107649798A CN201710985982.8A CN201710985982A CN107649798A CN 107649798 A CN107649798 A CN 107649798A CN 201710985982 A CN201710985982 A CN 201710985982A CN 107649798 A CN107649798 A CN 107649798A
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- cored wire
- medicine core
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Classifications
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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
- B23K35/24—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
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
Abstract
The invention discloses a kind of 25Cr2Ni4MoV steel metal flux-cored wire, including medicine core and weldering skin, wherein medicine core it is composed of the following components by mass percentage：Ferrosilicon powder 1% 4.0%, ferromanganese powder 6.0% 15.0%, nickel powder 20.0% 30.0%, chromium powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth powder 1%~2%, remaining is iron, and above constituent mass percentage sum is 100%.The invention discloses its preparation method：Raw material powder is prepared in proportion, dried after mixing, is added to U-type groove that mild steel steel band is rolled into, rolls closure, drawing, stretches, disk packs into disk.Flux-cored wire appearance of weld of the present invention is attractive in appearance, can obtain martensitic stain less steel seam organization, and welding point has excellent mechanical property；Its preparation method is simple, suitable for automatic welder, is adapted to batch production.
Description
Technical field
The invention belongs to Metal Material Welding technical field, and in particular to 25Cr2Ni4MoV steel metal flux-cored wires,
The invention further relates to the preparation method of the welding wire.
Background technology
In recent years, use of the large fan in China's industry is increasingly extensive, and applying working condition also becomes increasingly complex, to improve
The total quality of blower fan, it is desirable to which the blade material at blower fan core position has the good resultant forces such as higher obdurability and hardness
Learn performance.25Cr2Ni4MoV is that low-alloy structural steel is wider in the position application of blower fan core, such as answering on fan rotor
With its composition is C：0.22%~0.27%, Si：0.15%~0.35%, Mn：≤ 0.35%, P：≤ 0.015, S：≤
0.018, Ni：3.25%~4.00%, Cr：1.50%~2.00%, Mo：0.20%~0.50%, V：0.05%~
0.13%, Cu：≤ 0.20%.And 25Cr2Ni4MoV steel is widely used in national defence and machine due to its good obdurability
Tool industry strength member etc..
25Cr2Ni4MoV steel alloys are widely used in the manufacture of relatively large power generation rotor at present, have high intensity, high tenacity
And the advantages that low brittle transition temperature.In commercial Application, conditioned processing (quenching+high tempering) makes its acquisition excellent
Obdurability matches.It is mainly used to manufacture the component of high load capacity, heavy in section important axial workpiece and the load that is hit, such as lathe
Main shaft, steam turbine arbor and rocket engine shell etc..The intensity of quenched and tempered steel depends primarily on the intensity and carbide of α phases
Dispersion-strengthened action, main added elements are that Mn, Cr, Si, Ni etc. increase the quenching degree of steel and improve the comprehensive mechanical property of steel, wherein
Ni can not only improve the fatigue limit of steel and reduce the sensitiveness to breach, and can also reduce the ductile-brittle transition temperature of steel；
The carbide former such as additional elements Mo, V on this basis, playing reduces heat sensitivity and temper brittleness, eliminates some smeltings
Golden defect, quenching degree is further improved, at the same time Mo, V are also prevented from the recrystallization of α phases, can keep tiny crystal grain, make α phases
Also enough intensity can be kept.
At present, the report in terms of 25Cr2Ni4MoV steel alloy Welding Problems only have a small amount of welding procedure, there is not yet closing
In the report of its melting welding gas shielded type flux-cored wire.
The content of the invention
It is an object of the invention to provide 25Cr2Ni4MoV steel metal flux-cored wires, low-alloy can be obtained after welding
Steel seam organization, and welding point has excellent mechanical property.
It is a further object to provide the preparation method of 25Cr2Ni4MoV steel metal flux-cored wires.
The technical solution adopted in the present invention is 25Cr2Ni4MoV steel metal flux-cored wires, including medicine core and weldering
Skin, wherein medicine core are composed of the following components by mass percentage：Ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder
20.0%-30.0%, chromium powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth
Powder 1%~2%, remaining is iron, and above constituent mass percentage sum is 100%.
The features of the present invention also resides in：
Weldering skin is mild steel steel band, and the mass percent of impurity element is in mild steel steel band：P≤0.035%, S≤
0.03%.
The filling rate of medicine core powder is 20wt%-25wt% in the welding wire.
Another technical scheme of the present invention is the preparation side of 25Cr2Ni4MoV steel metal flux-cored wires
Method, comprise the following steps that：
Step 1：Weigh ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder respectively by mass percentage
20.0%-30.0%, chromium powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth
Powder 1%~2%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, drying temperature be 200 DEG C-
300 DEG C, drying time 2-3h, obtain medicine core powder；
Step 3：The medicine core powder that step 2 obtains is wrapped in mild steel steel band by flux-cored wire producing machine, and adopted
Mild steel steel band is closed with forming machine, then carries out first of drawing procedure, the grinding tool aperture that first time drawing procedure uses
For 2.0mm；
Step 4：After first of drawing procedure, reduce drawing grinding tool aperture to 1.2mm-1.6mm shapings；
Step 5：After step 4 drawing welding wire, the greasy dirt on flux-cored wire surface is removed, it is final to obtain 25Cr2Ni4MoV
Steel metal flux-cored wire.
The features of the present invention also resides in：
In step 3：Mild steel width of steel band is 7mm, thickness 0.4mm.
In step 3：The filling rate of medicine core powder is 20wt%-25wt% in welding wire.
The beneficial effects of the invention are as follows：
(1) appearance of weld that flux-cored wire of the present invention welds to obtain is attractive in appearance, has good welding usability, can obtain
Martensite aged stainless steel seam organization, welding point have excellent mechanical property and corrosion resistance；
(2) face of weld that flux-cored wire of the present invention is formed is bright and clean, and pore-free, can be continuous without cleaning without slag inclusion, postwelding
Welding, face of weld is bright and clean, and pore-free, can continuous sequence without cleaning without slag inclusion, postwelding；
(3) preparation method of flux-cored wire of the present invention is simple, easy to operate, suitable for automatic welder, has higher life
Produce efficiency.
Embodiment
With reference to embodiment, the present invention is described in detail.
25Cr2Ni4MoV steel metal flux-cored wire of the present invention, including medicine core and weldering skin, wherein medicine core press quality percentage
Than composed of the following components：Ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder 20.0%-30.0%, chromium powder 8%
~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth powder 1%~2%, remaining is
Iron, above constituent mass percentage sum are 100%；
Weldering skin is mild steel steel band, and the mass percent of impurity element is in mild steel steel band：P≤0.035%, S≤
0.03%.
The filling rate of medicine core powder is 20wt%-25wt% in the welding wire.
The effect of each component and function are as follows in the welding wire：
Molybdenum-iron can improve the intensity of steel, hardness, crystal grain thinning, prevent temper brittleness and overheat to be inclined to, raising elevated temperature strength,
Creep strength and creep rupture strength.
Raising of the chromium to intensity is had certain effect, and steel can be made to produce a kind of and matrix in the medium with oxidisability
The passivating film of the ferrochrome oxide of strong bonded is organized, influence of the chromium to intensity, which shows as appropriate chromium, can improve weld seam gold
The obdurability of category；
Nickel is that one kind can be completely dissolved in austenite, the element infinitely expanded in austenitic area, cooled welding
The transition temperature of austenite can be substantially reduced in journey, so as to suppress the formation of block pro-eutectoid ferrite, may advantageously facilitate pin
The formation of columnar ferrite, and relatively low phase transition temperature is it is also ensured that uniformly tiny acicular ferrite separates out so that weld seam
Good toughness, so, Ni is a kind of element that can promote austenite content and improve weld metal toughness；
Vanadium iron can deoxidation, denitrogenation, improve elevated temperature strength, crystal grain is grown up during limitation heating, is improved the density of steel, is promoted crystalline substance
Grain refinement, improves mechanical strength, is to be effectively formed carbonization elements, improves the red hardness of steel；
Ferromanganese deoxidation, desulfurization in welding process, heat release simultaneously accelerate reaction speed, improve the intensity and hardness of weld seam；
Ferrosilicon deoxidation in welding process, the oxygen in weld seam can be excluded in weld seam, increase intensity and hardness, can also carry
The acidproof of Gao Gang, heat resistance and resistivity；
Copper is that a kind of its ability of austenite former is far below nickel, is approximately the 30% of nickel.In common chromium nickel stainless steel
In, steel can improve corrosion resistance, especially improve the corrosion resistance in reductant；But the addition of copper will make the hot-working of steel
Performance becomes difficult in martensitic precipitation, and the effect of copper mainly causes post-curing effect.
The preparation method of 25Cr2Ni4MoV steel metal flux-cored wires, is comprised the following steps that：
Step 1：Weigh ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder respectively by mass percentage
20.0%-30.0%, chromium powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth
Powder 1%~2%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, drying temperature be 200 DEG C-
300 DEG C, drying time 2-3h, obtain medicine core powder；
Step 3：The medicine core powder that step 2 obtains is wrapped in mild steel steel band by flux-cored wire producing machine, and adopted
Mild steel steel band is closed with forming machine, then carries out first of drawing procedure, the grinding tool aperture that first time drawing procedure uses
For 2.0mm；In step 3：Mild steel width of steel band is 7mm, thickness 0.4mm；The filling rate of medicine core powder is 20wt%- in welding wire
25wt%.
Step 4：After first of drawing procedure, reduce drawing grinding tool aperture to 1.2mm-1.6mm shapings；
Step 5：After step 4 drawing welding wire, the greasy dirt on flux-cored wire surface is removed, it is final to obtain 25Cr2Ni4MoV
Steel metal flux-cored wire.
The method for welding 25Cr2Ni4MoV steel, is welded with gas metal-arc welding (GMAW), and weldering welding current is
180-210A, voltage 18-22V, protective gas CO2, Ar or Ar20%-CO280% mixed gas, gas flow rate 15-
20L/min。
Embodiment 1
Step 1：Weigh ferrosilicon powder 3.0%, ferromanganese powder 8.0%, nickel powder 30.0%, chromium powder respectively by mass percentage
8.0%, molybdenum-iron powder 5.0%, vanadium iron powder 1.0%, copper powder 2.0%, rare earth powder 1.0%, iron powder 42.0%, above component matter
It is 100% to measure percentage sum；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 220 DEG C,
Drying time is 2.5h, obtains medicine core powder；
Step 3：By width be 7mm, thickness 0.4mm mild steel steel band be placed on welding wire forming machine put band machine on, lead to
Stainless steel belt is rolled into U-type groove by the indent of overmolding machine, the medicine core powder that step 3 obtains is put into U-type groove, medicine core powder
The filling rate at end is controlled in 20wt%, then U-type groove is rolled closure with forming machine, is then carried out first of drawing procedure, the
2.0mm is in the grinding tool aperture that drawing procedure uses；
Step 4：After first of drawing procedure, carried out being drawn to a diameter of 1.2mm again with acetone wiped clean；
Step 5：After through step 4 drawing welding wire, the greasy dirt on welding wire is wiped with the cotton for being moistened with acetone, finally through drawing
Silk machine welding wire is stretched, disk into disk, pack, obtain 25Cr2Ni4MoV steel metal flux-cored wires.
With the flux-cored wire obtained by embodiment 1, suitable for gas metal-arc welding (GMAW), welding condition is：Electricity
180A is flowed, voltage 18V, protective gas is Ar gases, gas flow rate 15L/min；After tested, the tensile strength of welding point is
827Mpa, yield limit 685Mpa, the contraction percentage of area 53%, ballistic work 67J, performance meet making for 25Cr2Ni4MoV steel
With requiring.
Embodiment 2
Step 1：Weigh ferrosilicon powder 4.0%, ferromanganese powder 6.0%, nickel powder 26.0%, chromium powder respectively by mass percentage
10.0%, molybdenum-iron powder 10.0%, vanadium iron powder 2.0%, copper powder 1.0%, rare earth powder 1.0%, iron powder 40.0%, above component matter
It is 100% to measure percentage sum；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 200 DEG C,
Drying time is 2h, obtains medicine core powder；
Step 3：By width be 7mm, thickness 0.4mm mild steel steel band be placed on welding wire forming machine put band machine on, lead to
Stainless steel belt is rolled into U-type groove by the indent of overmolding machine, the medicine core powder that step 3 obtains is put into U-type groove, medicine core powder
The filling rate at end is controlled in 22wt%, then U-type groove is rolled closure with forming machine, is then carried out first of drawing procedure, the
2.0mm is in the grinding tool aperture that drawing procedure uses；
Step 4：After first of drawing procedure, carried out being drawn to a diameter of 1.4mm again with acetone wiped clean；
Step 5：After through step 4 drawing welding wire, the greasy dirt on welding wire is wiped with the cotton for being moistened with acetone, finally through drawing
Silk machine welding wire is stretched, disk into disk, pack, obtain 25Cr2Ni4MoV steel metal flux-cored wires.
Flux-cored wire made from embodiment 2, suitable for gas metal-arc welding (GMAW), welding condition is：Welding electricity
200A is flowed, voltage 18V, protective gas is Ar gases, gas flow rate 15L/min；After tested, the tension of welding point is strong
Spend and meet 25Cr2Ni4MoV steel for 854Mpa, yield limit 688Mpa, the contraction percentage of area 52%, ballistic work 73J, performance
Requirement.
Embodiment 3
Step 1：Weigh ferrosilicon powder 2.0%, ferromanganese powder 10.0%, nickel powder 22.0%, chromium powder respectively by mass percentage
12.0%, molybdenum-iron powder 8.0%, vanadium iron powder 3.0%, copper powder 3.0%, rare earth powder 1.0%, iron powder 39.0%, above component matter
It is 100% to measure percentage sum；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 300 DEG C,
Drying time is 3h, obtains medicine core powder；
Step 3：By width be 7mm, thickness 0.4mm mild steel steel band be placed on welding wire forming machine put band machine on, lead to
Stainless steel belt is rolled into U-type groove by the indent of overmolding machine, the medicine core powder that step 3 obtains is put into U-type groove, medicine core powder
Then the filling rate control at end makes U-type groove roll closure 24% with forming machine, then carry out first of drawing procedure, and first
2.0mm is in the grinding tool aperture that secondary drawing procedure uses；
Step 4：After first of drawing procedure, carried out being drawn to a diameter of 1.6mm again with acetone wiped clean；
Step 5：After through step 4 drawing welding wire, the greasy dirt on welding wire is wiped with the cotton for being moistened with acetone, finally through drawing
Silk machine welding wire is stretched, disk into disk, pack, obtain 25Cr2Ni4MoV steel metal flux-cored wires.
Flux-cored wire made from embodiment 3, suitable for gas metal-arc welding (GMAW), welding condition is：Welding electricity
200A is flowed, voltage 20V, protective gas is Ar gases, gas flow rate 15L/min；After tested, the tension of welding point is strong
Spend and meet 25Cr2Ni4MoV steel for 806Mpa, yield limit 653Mpa, the contraction percentage of area 48%, ballistic work 68J, performance
Requirement.
Embodiment 4
Step 1：Weigh ferrosilicon powder 1.0%, ferromanganese powder 15.0%, nickel powder 20.0%, chromium powder respectively by mass percentage
13.0%, molybdenum-iron powder 9.0%, vanadium iron powder 5.0%, copper powder 4.0%, rare earth powder 2.0%, iron powder 31.0%, above component matter
It is 100% to measure percentage sum；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 250 DEG C,
Drying time is 2.2h, obtains medicine core powder；
Step 3：By width be 7mm, thickness 0.4mm mild steel steel band be placed on welding wire forming machine put band machine on, lead to
Stainless steel belt is rolled into U-type groove by the indent of overmolding machine, the medicine core powder that step 3 obtains is put into U-type groove, medicine core powder
The filling rate at end is controlled in 25wt%, then U-type groove is rolled closure with forming machine, is then rolled U-type groove with forming machine and close
Close, then carry out first of drawing procedure, 2.0mm is in the grinding tool aperture that first time drawing procedure uses；
Step 4：After first of drawing procedure, carried out being drawn to a diameter of 1.4mm again with acetone wiped clean；
Step 5：After through step 4 drawing welding wire, the greasy dirt on welding wire is wiped with the cotton for being moistened with acetone, finally through drawing
Silk machine welding wire is stretched, disk into disk, pack, obtain 25Cr2Ni4MoV steel metal flux-cored wires.
Flux-cored wire made from embodiment 4, suitable for gas metal-arc welding (GMAW), welding condition is：Welding electricity
210A is flowed, voltage 20V, protective gas is Ar gases, gas flow rate 15L/min；After tested, the tension of welding point is strong
Spend and meet 25Cr2Ni4MoV steel for 865Mpa, yield limit 657Mpa, the contraction percentage of area 52%, ballistic work 72J, performance
Requirement.
Embodiment 5
Step 1：Weigh ferrosilicon powder 2.0%, ferromanganese powder 12.0%, nickel powder 21.0%, chromium powder respectively by mass percentage
15.0%, molybdenum-iron powder 15.0%, vanadium iron powder 4.0%, copper powder 5.0%, rare earth powder 2.0%, iron powder 24%, above constituent mass
Percentage sum is 100%；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 250 DEG C,
Drying time is 3h, obtains medicine core powder；
Step 3：By width be 7mm, thickness 0.4mm mild steel steel band be placed on welding wire forming machine put band machine on, lead to
Stainless steel belt is rolled into U-type groove by the indent of overmolding machine, the medicine core powder that step 3 obtains is put into U-type groove, medicine core powder
The filling rate at end is controlled in 25wt%, then U-type groove is rolled closure with forming machine, is then carried out first of drawing procedure, the
2.0mm is in the grinding tool aperture that drawing procedure uses；
Step 4：After first of drawing procedure, carried out being drawn to a diameter of 1.6mm again with acetone wiped clean；
Step 5：After through step 4 drawing welding wire, the greasy dirt on welding wire is wiped with the cotton for being moistened with acetone, finally through drawing
Silk machine welding wire is stretched, disk into disk, pack, obtain 25Cr2Ni4MoV steel metal flux-cored wires.
Flux-cored wire made from embodiment 5, suitable for gas metal-arc welding (GMAW), welding condition is：Welding electricity
210A is flowed, voltage 21V, protective gas is Ar gases, gas flow rate 15L/min；After tested, the tension of welding point is strong
Spend and meet 25Cr2Ni4MoV steel for 789Mpa, yield limit 614Mpa, the contraction percentage of area 54%, ballistic work 68J, performance
Requirement.
Advantages of the present invention is：
(1) appearance of weld that flux-cored wire of the present invention welds to obtain is attractive in appearance, has good welding usability, can obtain
Martensite aged stainless steel seam organization, welding point have excellent mechanical property and corrosion resistance；
(2) face of weld that flux-cored wire of the present invention is formed is bright and clean, and pore-free, can be continuous without cleaning without slag inclusion, postwelding
Welding, face of weld is bright and clean, and pore-free, can continuous sequence without cleaning without slag inclusion, postwelding；
(3) preparation method of flux-cored wire of the present invention is simple, easy to operate, suitable for automatic welder, has higher life
Produce efficiency.
Claims (6)
1.25Cr2Ni4MoV steel metal flux-cored wires, it is characterised in that including medicine core and weldering skin, wherein medicine core presses quality
Percentage is composed of the following components：Ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder 20.0%-30.0%, chromium
Powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth powder 1%~2%, remaining
For iron, above constituent mass percentage sum is 100%.
2. 25Cr2Ni4MoV steel metal flux-cored wire according to claim 1, it is characterised in that it is described weldering skin be
Mild steel steel band, the mass percent of impurity element is in mild steel steel band：P≤0.035%, S≤0.03%.
3. 25Cr2Ni4MoV steel metal flux-cored wire according to claim 1, it is characterised in that the welding wire Chinese medicine
The filling rate of core powder is 20wt%-25wt%.
The preparation method of 4.25Cr2Ni4MoV steel metal flux-cored wires, it is characterised in that comprise the following steps that：
Step 1：Weigh ferrosilicon powder 1%-4.0%, ferromanganese powder 6.0%-15.0%, nickel powder 20.0%- respectively by mass percentage
30.0%, chromium powder 8%~15%, molybdenum-iron powder 5%~15%, vanadium iron powder 1%~5%, copper powder 1%~5%, rare earth powder 1%
~2%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2：All raw materials that step 1 is weighed are well mixed, and are placed in drying oven and are dried, and drying temperature is 200 DEG C -300
DEG C, drying time 2-3h, obtain medicine core powder；
Step 3：The medicine core powder that step 2 obtains is wrapped in mild steel steel band by flux-cored wire producing machine, and using into
Type machine closes mild steel steel band, then carries out first of drawing procedure, the grinding tool aperture that first time drawing procedure uses for
2.0mm；
Step 4：After first of drawing procedure, reduce drawing grinding tool aperture to 1.2mm-1.6mm shapings；
Step 5：After step 4 drawing welding wire, the greasy dirt on flux-cored wire surface is removed, it is final that 25Cr2Ni4MoV steel is used
Metal flux-cored wire.
5. the preparation method of 25Cr2Ni4MoV steel metal flux-cored wire according to claim 4, it is characterised in that
In step 3：Mild steel width of steel band is 7mm, thickness 0.4mm.
6. the preparation method of 25Cr2Ni4MoV steel metal flux-cored wire according to claim 4, it is characterised in that
In step 3：The filling rate of medicine core powder is 20wt%-25wt% in welding wire.
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| CN111992923A (en) * | 2020-07-22 | 2020-11-27 | 西安理工大学 | Metal type flux-cored wire and method for preparing austenitic stainless steel structural member |
| CN113579562A (en) * | 2021-07-26 | 2021-11-02 | 西安理工大学 | Metal fiber type flux-cored wire and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323057A (en) * | 2007-06-13 | 2008-12-17 | 中国船舶重工集团公司第七二五研究所 | High intensity metallic core type seamless flux-cored wire |
| CN101559544A (en) * | 2008-04-16 | 2009-10-21 | 株式会社神户制钢所 | Pure argon gas shielded welding mig flux-cored wire and mig arc welding method |
| CN101890594A (en) * | 2010-07-30 | 2010-11-24 | 西安理工大学 | Low-hydrogen basic electrode for 25Cr2Ni4MoV alloy steel welding |
| CN101898286A (en) * | 2010-07-30 | 2010-12-01 | 西安理工大学 | Low-hydrogen alkaline welding rod for 25Cr2Ni4MoV alloy steel manual arc welding |
| CN102267023A (en) * | 2011-07-29 | 2011-12-07 | 台州海翔焊接材料有限公司 | Metal-powder type stainless steel flux-cored wire |
| CN104741825A (en) * | 2015-03-09 | 2015-07-01 | 西安理工大学 | Flux-cored wire used for low-alloy ultrahigh-strength steel and manufacturing method thereof |
| CN104759788A (en) * | 2015-03-09 | 2015-07-08 | 西安理工大学 | OCr13Ni5Mo steel metal flux-cored wire and preparation method thereof |
| CN104999193A (en) * | 2015-07-07 | 2015-10-28 | 西安航天动力机械厂 | Iron-based flux-cored wire and preparation method thereof |
| CN105945446A (en) * | 2016-06-21 | 2016-09-21 | 西安理工大学 | Metal mold flux-cored wire for 1Cr12Ni2W1MoV stainless steel and preparation method of metal mold flux-cored wire |
| CN106514040A (en) * | 2016-11-04 | 2017-03-22 | 四川大西洋焊接材料股份有限公司 | Gas-shielded stainless steel flux-cored wire for boiler burner, and production process thereof |
-
2017
- 2017-10-20 CN CN201710985982.8A patent/CN107649798B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323057A (en) * | 2007-06-13 | 2008-12-17 | 中国船舶重工集团公司第七二五研究所 | High intensity metallic core type seamless flux-cored wire |
| CN101559544A (en) * | 2008-04-16 | 2009-10-21 | 株式会社神户制钢所 | Pure argon gas shielded welding mig flux-cored wire and mig arc welding method |
| CN101890594A (en) * | 2010-07-30 | 2010-11-24 | 西安理工大学 | Low-hydrogen basic electrode for 25Cr2Ni4MoV alloy steel welding |
| CN101898286A (en) * | 2010-07-30 | 2010-12-01 | 西安理工大学 | Low-hydrogen alkaline welding rod for 25Cr2Ni4MoV alloy steel manual arc welding |
| CN102267023A (en) * | 2011-07-29 | 2011-12-07 | 台州海翔焊接材料有限公司 | Metal-powder type stainless steel flux-cored wire |
| CN104741825A (en) * | 2015-03-09 | 2015-07-01 | 西安理工大学 | Flux-cored wire used for low-alloy ultrahigh-strength steel and manufacturing method thereof |
| CN104759788A (en) * | 2015-03-09 | 2015-07-08 | 西安理工大学 | OCr13Ni5Mo steel metal flux-cored wire and preparation method thereof |
| CN104999193A (en) * | 2015-07-07 | 2015-10-28 | 西安航天动力机械厂 | Iron-based flux-cored wire and preparation method thereof |
| CN105945446A (en) * | 2016-06-21 | 2016-09-21 | 西安理工大学 | Metal mold flux-cored wire for 1Cr12Ni2W1MoV stainless steel and preparation method of metal mold flux-cored wire |
| CN106514040A (en) * | 2016-11-04 | 2017-03-22 | 四川大西洋焊接材料股份有限公司 | Gas-shielded stainless steel flux-cored wire for boiler burner, and production process thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356446A (en) * | 2018-02-12 | 2018-08-03 | 西安理工大学 | 51CrV4 spring steel gas shielded type flux-cored wire and preparation method thereof |
| CN108500507A (en) * | 2018-02-12 | 2018-09-07 | 西安理工大学 | 51CrV4 spring steel metal flux-cored wires and preparation method thereof |
| CN108907505A (en) * | 2018-09-06 | 2018-11-30 | 四川大西洋焊接材料股份有限公司 | Q550MPa high-strength steel special welding wire and preparation method |
| CN109317860A (en) * | 2018-11-12 | 2019-02-12 | 西安理工大学 | 25CrNiMoV steel alloy metal flux-cored wire and preparation method |
| CN109317861A (en) * | 2018-11-12 | 2019-02-12 | 西安理工大学 | 25CrNiMoV gas slag Combined Protection type flux-cored wire and preparation method |
| CN109317862A (en) * | 2018-11-12 | 2019-02-12 | 西安理工大学 | 25CrNiMoV gas shielded type flux-cored wire and preparation method thereof |
| CN110216398A (en) * | 2019-05-24 | 2019-09-10 | 西安理工大学 | A kind of fan impeller blade gas shielded metal flux-cored wire |
| CN111992923A (en) * | 2020-07-22 | 2020-11-27 | 西安理工大学 | Metal type flux-cored wire and method for preparing austenitic stainless steel structural member |
| CN111992923B (en) * | 2020-07-22 | 2022-03-29 | 西安理工大学 | Metal type flux-cored wire and method for preparing austenitic stainless steel structural member |
| CN113579562A (en) * | 2021-07-26 | 2021-11-02 | 西安理工大学 | Metal fiber type flux-cored wire and preparation method thereof |
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