CN106001995A - Complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire - Google Patents
Complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire Download PDFInfo
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- CN106001995A CN106001995A CN201610609701.4A CN201610609701A CN106001995A CN 106001995 A CN106001995 A CN 106001995A CN 201610609701 A CN201610609701 A CN 201610609701A CN 106001995 A CN106001995 A CN 106001995A
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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
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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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- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire. A mild-carbon steel strip is adopted as skin, a flux core is prepared from, by mass, 6%-45% of high carbon ferro-chrome, 3%-10% of TiN, 3%-10% of BN, 3%-10% of B4C, 3%-10% of TiB2, 3%-10% of ZrB2, 1%-3% of graphite, 0.5%-1% of 60-mesh cellulose powder, 0.5%-1% of 200-mesh cellulose powder, 1%-3% of 60-mesh aluminum magnesium alloy, 1%-3% of 200-mesh aluminum magnesium alloy, 2%-5% of 60-mesh silicomanganese, 2%-5% of 200-mesh silicomanganese and the balance iron powder, and flux core powder accounts for 50% to 54% of the total weight of the wire. According to the complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire, flux core components different in grain size are added, so that the good welding process performance is guaranteed; the flux core components and other alloy powder are reasonably matched, so that complex nitride and boride are dispersed through the wire in the welding process, the advantages of being high and even in hardness, good in wear resistance and the like are achieved, no slag basically exists on the surface of a weld bead, and slag removal is not needed during multilayer welding.
Description
Technical field
The invention belongs to the welding field in Materials Processing Engineering, more particularly to a kind of multicomponent nitride and boride association
With strengthening self-protection flux-cored wire.
Background technology
The hardfacing flux-cored wire of Bead weld repair, generally relies on M at present7C3It it is main chromium carbide silicon carbide thing
Its hardness, M are provided7C3Microhardness is 1200-1700HV.Researchers form unit often through adding strong carbide
Element Nb, Ti etc. improve its hardness further.On the whole, carbide is relied on to play wear-resistant bone in hardfacing alloy tissue
Frame effect, to improve the general choice that the wearability of hardfacing alloy is current welding material manufacturer.
Comparing with Carbide Phases, boride and nitride often have higher hardness, thus can provide more in theory
Excellent anti-wear performance, such as B4C, BN are the two of the hardest three kinds of materials of currently known nature, and it is micro-firmly
Degree reaches about 3500HV.But, in traditional welding process, add B and be easily caused the fragility increasing of deposited metal
Greatly, being primarily due in high-temperature fusant process of setting, B generates with other element reactions and nets dendritic boride, such boron
Compound poor toughness, easily cracks, and significantly limits its wearability；Additionally, the addition of N the most easily causes nitrogen pore.
Summary of the invention
Goal of the invention: for solving technical problem present in prior art, the present invention provides a kind of multicomponent nitride and boronation
Thing is collaborative strengthens self-protection flux-cored wire and preparation method thereof.
Technology contents: for realizing above-mentioned technical purpose, the present invention proposes a kind of multicomponent nitride and boride is worked in coordination with and strengthened certainly
Protection flux-cored wire, including mild-carbon steel strip and medicated core, flux cored filler is in steel band, and described drug core component percent mass contains
Weight range is as follows: 6～the high carbon ferro-chrome of 45%, and 3～the BN of the TiN of 10%, 3～10%, 3～the B of 10%4C, 3～
The TiB of 10%2, 3～the ZrB of 10%2, 1～the graphite of 3%, 0.5～60 mesh cellulose powders, 0.5～1% of 1%
200 mesh cellulose powders, 1～the 200 mesh almags of 60 mesh almags, 1～3% of 3%, 2～the 60 of 5%
200 mesh silicomangans of mesh silicomangan, 2～5%, surplus is iron powder, and medicated core powder accounts for the 50-54% of welding wire gross weight.
Preferably, the cellulose of different-grain diameter in described medicated core: the cellulose of 60 mesh and the cellulose powder of 200 mesh,
Add in the way of mass ratio is 0.5～1:0.5～1 combination.
The almag of different-grain diameter in described medicated core: the almag of 60 mesh and the almag of 200 mesh, with quality
Add than the mode being 1～3:1～3 combinations.
The silicomangan of different-grain diameter in described medicated core: the silicomangan of 60 mesh and the silicomangan of 200 mesh, with mass ratio
It is that 2～5:2～5 modes combined add.
Preferably, the high carbon ferro-chrome in described medicated core, TiN, BN, B4C、TiB2、ZrB2, graphite and iron powder component
Particle diameter be all higher than or equal to 80 mesh.
Preferentially, described high carbon ferro-chrome phosphorus content is 9.0～9.5wt%, and chrome content is 62～72wt%, and remaining is ferrum；
Described almag aluminum content is 47～53wt%, and remaining is magnesium；Described silicomangan silicon content is 47～53wt%,
Remaining is manganese.
Preferentially, described mild-carbon steel strip thickness × width is 0.5 × 21mm.
Any one in a diameter of 2.8mm, 3.2mm, 3.5mm, 3.8mm and 4.2mm of described welding wire.
Above-mentioned multicomponent nitride and boride work in coordination with the preparation method strengthening self-protection flux-cored wire, comprise the steps:
(1) utilize molding roller that mild steel steel band is rolled into U-shaped, then by dust feeder, medicated core powder is pressed welding wire
The 50-54% of gross weight joins in U-lag；
(2) U-lag is healed up, make medicated core wrap up wherein, by wire drawing die, by road drawing, tube reducing, finally make it
Diameter reaches 2.8～4.2mm, obtains final products.
In above-mentioned medicated core, each component Main Function is as follows:
High carbon ferro-chrome: form Cr7C3, Cr23C6, Cr3The carbide of the chromium such as C；And in matrix transition C.
TiN、BN、B4C、TiB2And ZrB2: Dispersed precipitate is in hardfacing alloy tissue, it is provided that preferable wear-resisting thing phase；
Refinement hardfacing alloy tissue simultaneously.
Graphite: C element, deoxidation, gas making (CO) are provided, reduce stomata sensitivity.
Cellulose: deoxidation, gas making, strengthen self-shield effect.
Almag: deoxidation, fixed nitrogen (invades the N in welding metal from air), strengthens self-shield effect.
Silicomangan: deoxidation, strengthens self-shield effect；Transition alloy elements Mn and elements Si.
Sketched by the effect of component each in technique scheme and medicated core it is understood that due to the fact that and add in medicated core simultaneously
Add polynary high rigidity nitride and boride TiN, BN, B4C、TiB2And ZrB2, in weld physics metallurgical melt first
Phase separates out, and Dispersed precipitate.So that organizing fined, and avoiding traditional formation netting dendritic boride, this is all
Deposited metal obdurability can be increased.Further, owing to first analysing TiN, BN, B4C、TiB2And ZrB2Have than it (Cr,
Fe)7C3The higher hardness of carbide and heat stability, be greatly improved hardness and the wearability of deposited metal.Also be not added with niobium,
The expensive alloying elements such as vanadium, are greatly saved welding wire manufacturing cost, it is achieved that the most multielement enhanced original intention, have reached this
The purpose of invention.
In technique scheme, the addition manner of described nitride and boride is all multiplexed combination.This is because,
On the one hand, TiN, BN, B4C、TiB2And ZrB2High rigidity, high heat stability performance be that approximation is convergent, this all pole
Contribute to greatly hardfacing alloy wearability；On the other hand, TiN, BN, B4C、TiB2And ZrB2Fusing point, the thing such as form
Changing performance the most difference, this not only improves hard particle and separates out at the high-temperature temperature interval successive that welding early solidification is wider
To constitute graded multicomponent strengthening thinning effect, be conducive to again the composition of abundant hard phase effectively to resist particularly complex working condition
Under the conditions of grinding, it is provided that more stable excellent wear.
In medicated core, the granularity of cellulose, almag and silicomangan all has two kinds: 60 mesh and 200 mesh, with particle size differences
The mode of combination is added.In whole welding process, in the molten drop stage of existing extreme temperatures, there is again the molten bath that temperature is slightly lower
In the stage, whichever is required for being prevented effectively from air pollution and just can obtain qualified welding deposited metal in stage, and seminar leads to
Cross the substantial amounts of engineer testing of early stage to find, the self-shield of welding wire can be obviously improved by varigrained above-mentioned medicated core component
Effect.This is that varigrained powder has different oxidation activities.Chemical metallurgy reactivity is controlled by component particle size
New approaches, medicated core adds superfine 200 mesh celluloses, almag and silicomangan, utilize its welding rise
Thermophase carries out effective precedent desoxydation, adds thicker 60 mesh celluloses, almag and silicomanganese in medicated core simultaneously
Alloy, is allowed to be retained in molten drop hot stage and molten bath stage, it is also possible to carry out effective deoxidation gas making, thus ensure
Whole welding wire is heated, melt, form molten drop, droplet transfer, formation molten bath and start the Welding Metallurgy whole process of solidification and all have
Standby good self-shield effect, it is achieved thereby that this welding wire is not in the case of adding any mineral powder slag former, still
Can possess good welding technological properties and welding metal surface shapes.
Beneficial effect: the present invention is by adding multicomponent nitride and boride TiN, BN, B simultaneously in medicated core4C、TiB2
And ZrB2, during Welding Metallurgy, separate out a large amount of disperse educt in advance, it is provided that high rigidity, high thermal stability also refine group
Knit, and by avoiding single multicomponent mixture addition manner effectively to utilize TiN, BN, B4C、TiB2And ZrB2Fusing point,
The difference on physical and chemical performance such as form, it is thus achieved that high-temperature temperature interval successive separates out to constitute graded multicomponent strengthening refinement effect
Really, the composition of abundant hard phase it is also beneficial to effectively to resist the grinding under particularly complex working conditions, it is provided that more steady
Fixed excellent wear.Further, controlled the new approaches of chemical metallurgy reactivity by component particle size, in medicated core respectively
200 superfine mesh and thicker 60 mesh celluloses, almag and silicomangan are added in combination, are effectively ensured whole
Welding wire is heated, melt, form molten drop, droplet transfer, formation molten bath and start the Welding Metallurgy whole process of solidification and be provided with good
Good self-shield effect, it is achieved thereby that this welding wire is not in the case of adding any mineral powder slag former, remains able to
Possess good welding technological properties and welding bead shaping surface.The flux-cored wire welding technological properties of the present invention is good, and alloy is equal
Homogenizing degree high, overlay surface hardness is uniform, and average hardness is in 60～66HRC scopes.Wearability is Q235's
25～36 times.
Detailed description of the invention
According to following embodiment, the present invention be may be better understood.But, the concrete medicated core component described by embodiment
Proportioning, process conditions and result thereof are merely to illustrate the present invention, and should also without limitation on institute in claims not in detail
The present invention described.Wherein, the high carbon ferro-chrome phosphorus content used in following examples is 9.0～9.5wt%, containing chromium
Amount is 62～72wt%, and remaining is ferrum；Described almag aluminum content is 47～53wt%, and remaining is magnesium；Described
Silicomangan silicon content is 47～53wt%, and remaining is manganese.
Embodiment 1
A kind of vanadium niobium complex intensifying hardfacing is with without slag self-protection flux-cored wire, and including mild-carbon steel strip and medicated core, medicated core is filled out
Filling in steel band, drug core component is prepared by following quality: include mild-carbon steel strip and medicated core, flux cored filler in steel band,
Drug core component is prepared by following quality: the 80 mesh high carbon ferro-chromes of 45g, 80 mesh of 80 mesh TiN, 10g of 8g
The 80 mesh B of BN, 3g4The 80 mesh TiB of C, 5g2, the 80 mesh ZrB of 6g2, the 80 mesh graphite of 1g, 0.5g's
60 mesh cellulose powders, the 200 mesh cellulose powders of 0.5g, the 60 mesh almags of 1g, the 200 mesh magnaliums of 3g
Alloy, the 60 mesh silicomangans of 2g, the 200 mesh silicomangans of 3g, the 80 mesh iron powders of 12g.By taken various powder
End is inserted in mixed powder machine, mixes 40 minutes, then mixed-powder is added the H08A carbon steel of 21 × 0.5mm of U-shaped
In steel band groove, filling rate is 54%.Again U-lag is healed up, make medicated powder wrap up wherein.Then make it respectively by straight
Footpath is one or more in the wire drawing die of 4.2mm, 3.8mm, 3.5mm, 3.2mm, 2.8mm, by road drawing,
Tube reducing, finally obtains the product of a diameter of 2.8～4.2mm.Welding current is 280～420A, weldingvoltage be 30～
42V, speed of welding is 0.4m/min, and interlayer temperature controls at 150～250 DEG C, built-up welding 3 layers.Deposited metal hardness
And wearability is shown in Table 1.
Embodiment 2
A kind of vanadium niobium complex intensifying hardfacing is with without slag self-protection flux-cored wire, and including mild-carbon steel strip and medicated core, medicated core is filled out
Filling in steel band, drug core component is prepared by following quality: include mild-carbon steel strip and medicated core, flux cored filler in steel band,
Drug core component is prepared by following quality: the 80 mesh high carbon ferro-chromes of 40g, 80 mesh of 80 mesh TiN, 5g of 3g
The 80 mesh B of BN, 10g4The 80 mesh TiB of C, 4g2, the 80 mesh ZrB of 3g2, the 80 mesh graphite of 2g, 1g's
60 mesh cellulose powders, the 200 mesh cellulose powders of 1g, the 60 mesh almags of 2g, the 200 mesh magnaliums of 2g close
Gold, the 60 mesh silicomangans of 5g, the 200 mesh silicomangans of 2g, the 80 mesh iron powders of 20g.By taken various powder
Insert in mixed powder machine, mix 40 minutes, then mixed-powder is added the H08A carbon steel steel of 21 × 0.5mm of U-shaped
In trough of belt, filling rate is 50%.Again U-lag is healed up, make medicated powder wrap up wherein.Then it is made to pass through diameter respectively
For one or more in the wire drawing die of 4.2mm, 3.8mm, 3.5mm, 3.2mm, 2.8mm, by road drawing,
Tube reducing, finally obtains the product of a diameter of 2.8～4.2mm.Welding current is 280～420A, weldingvoltage be 30～
42V, speed of welding is 0.4m/min, and interlayer temperature controls at 150～250 DEG C, built-up welding 3 layers.Deposited metal hardness
And wearability is shown in Table 1.
Embodiment 3
A kind of vanadium niobium complex intensifying hardfacing is with without slag self-protection flux-cored wire, and including mild-carbon steel strip and medicated core, medicated core is filled out
Filling in steel band, drug core component is prepared by following quality: include mild-carbon steel strip and medicated core, flux cored filler in steel band,
Drug core component is prepared by following quality: the 80 mesh high carbon ferro-chromes of 36g, 80 mesh of 80 mesh TiN, 7g of 10g
The 80 mesh B of BN, 5g4The 80 mesh TiB of C, 3g2, the 80 mesh ZrB of 10g2, the 80 mesh graphite of 3g, 0.6g
60 mesh cellulose powders, the 200 mesh cellulose powders of 0.6g, the 60 mesh almags of 2g, the 200 mesh aluminum of 1g
Magnesium alloy, the 60 mesh silicomangans of 3g, the 200 mesh silicomangans of 5g, the 80 mesh iron powders of 13.8g.Each by being taken
Plant powder and insert in mixed powder machine, mix 40 minutes, then mixed-powder is added the H08A of 21 × 0.5mm of U-shaped
In carbon steel steel band groove, filling rate is 53%.Again U-lag is healed up, make medicated powder wrap up wherein.Then it is made to lead to respectively
Cross one or more in the wire drawing die of a diameter of 4.2mm, 3.8mm, 3.5mm, 3.2mm, 2.8mm, by road
Drawing, tube reducing, finally obtain the product of a diameter of 2.8～4.2mm.Welding current is 280～420A, weldingvoltage
Being 30～42V, speed of welding is 0.4m/min, and interlayer temperature controls at 150～250 DEG C, built-up welding 3 layers.Built-up welding
Metal hardness and wearability are shown in Table 1.
Embodiment 4
A kind of vanadium niobium complex intensifying hardfacing is with without slag self-protection flux-cored wire, and including mild-carbon steel strip and medicated core, medicated core is filled out
Filling in steel band, drug core component is prepared by following quality: include mild-carbon steel strip and medicated core, flux cored filler in steel band,
Drug core component is prepared by following quality: the 80 mesh high carbon ferro-chromes of 38g, 80 mesh of 80 mesh TiN, 3g of 5g
The 80 mesh B of BN, 8g4The 80 mesh TiB of C, 10g2, the 80 mesh ZrB of 5g2, the 80 mesh graphite of 2g, 1g's
60 mesh cellulose powders, the 200 mesh cellulose powders of 1g, the 60 mesh almags of 3g, the 200 mesh magnaliums of 1g close
Gold, the 60 mesh silicomangans of 4g, the 200 mesh silicomangans of 4g, the 80 mesh iron powders of 15g.By taken various powder
Insert in mixed powder machine, mix 40 minutes, then mixed-powder is added the H08A carbon steel steel of 21 × 0.5mm of U-shaped
In trough of belt, filling rate is 52%.Again U-lag is healed up, make medicated powder wrap up wherein.Then it is made to pass through diameter respectively
For one or more in the wire drawing die of 4.2mm, 3.8mm, 3.5mm, 3.2mm, 2.8mm, by road drawing,
Tube reducing, finally obtains the product of a diameter of 2.8～4.2mm.Welding current is 280～420A, weldingvoltage be 30～
42V, speed of welding is 0.4m/min, and interlayer temperature controls at 150～250 DEG C, built-up welding 3 layers.Deposited metal hardness
And wearability is shown in Table 1.
The beaten hardness of table 1 uses HR-150A Rockwell apparatus, load 150Kg, each test specimens takes firmly at 5
Degree, calculates average hardness value.
Wear test uses MLS-225 type wet type rubber wheel abrasion tester.
The overlay cladding of each embodiment is cut five a size of 57 × 25 × 6mm Wear specimens.Wear test parameter is as follows:
Rubber wheel diameter: 178mm, rubber wheel rotating speed: 240 revs/min, rubber wheel hardness: 70 (Shao Er hardness), load:
10Kg, rubber wheel revolution: pre-grinding 1000 turns, formal test turns 1000 turns, abrasive material: the quartz sand of 40～70 mesh.
The anti-wear performance of deposited metal is weighed with the weight loss of formal abrasion.Third is filled forward and backward inserted by sample of every time experiment
In the beaker of ketone solution, clean 3～5 minutes in ultrasonic washing instrument, record of weighing after dry.Experiment Q235
Relative wear resistance ε being used for built-up welding sample of steel sample as a comparison, contrast piece weight loss and measuring piece weight loss.
Table 1 each embodiment deposited metal hardness and wear resistance
In sum, the welding wire that the present invention provides, by adding varigrained medicated core component, it is ensured that good welding
Processing performance, and by the rational proportion with other alloy powders, it is allowed to disperse educt multicomponent nitride in welding process
And boride, there is hardness high and uniform, the features such as wearability is good, and welding bead surface is substantially without slag, multilayer welding is without clearly
Slag.
Claims (9)
1. multicomponent nitride and a boride collaborative enhancing self protection pile-up welding flux core welding wire, including mild-carbon steel strip and medicated core,
Flux cored filler is in steel band, it is characterised in that described drug core component is by mass percentage: 6～the high carbon chromium of 45%
Ferrum, 3～the BN of the TiN of 10%, 3～10%, 3～the B of 10%4The TiB of C, 3～10%2, 3～the ZrB of 10%2,
1～the graphite of 3%, 0.5～the 200 mesh cellulose powders of 60 mesh cellulose powders, 0.5～1% of 1%, 1～3%
200 mesh almags of 60 mesh almags, 1～3%, 2～the 200 mesh silicon of 60 mesh silicomangans, 2～5% of 5%
Manganese alloy, surplus is iron powder, and medicated core powder accounts for the 50-54% of welding wire gross weight.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
It is the cellulose of different-grain diameter: the cellulose of 60 mesh and the cellulose powder of 200 mesh, be 0.5～1:0.5～1 with mass ratio
The mode of combination adds.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
It is the almag of different-grain diameter: the almag of 60 mesh and the almag of 200 mesh, be 1～3:1～3 with mass ratio
The mode of combination adds.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
It is the silicomangan of different-grain diameter: the silicomangan of 60 mesh and the silicomangan of 200 mesh, be 2～5:2～5 with mass ratio
The mode of combination adds.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
It is, the high carbon ferro-chrome in described medicated core, TiN, BN, B4C、TiB2、ZrB2, graphite and the particle diameter of iron powder component
It is all higher than or equal to 80 mesh.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
Being, described high carbon ferro-chrome phosphorus content is 9.0～9.5wt%, and chrome content is 62～72wt%, and remaining is ferrum；Described
Almag aluminum content be 47～53wt%, remaining is magnesium；Described silicomangan silicon content is 47～53wt%, its
Remaining is manganese.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
Being, described mild-carbon steel strip thickness × width is 0.5 × 21mm.
Multicomponent nitride the most according to claim 1 and boride collaborative enhancing self-protection flux-cored wire, its feature
It is, any one in a diameter of 2.8mm, 3.2mm, 3.5mm, 3.8mm and 4.2mm of described welding wire.
9. multicomponent nitride and boride described in claim 1 work in coordination with the preparation method strengthening self-protection flux-cored wire,
It is characterized in that, comprise the steps:
(1) utilize molding roller that mild steel steel band is rolled into U-shaped, then by dust feeder, medicated core powder is pressed welding wire
The 50-54% of gross weight joins in U-lag；
(2) U-lag is healed up, make medicated core wrap up wherein, by wire drawing die, by road drawing, tube reducing, finally make it
Diameter reaches 2.8～4.2mm, obtains final products.
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| CN201610609701.4A CN106001995B (en) | 2016-07-28 | 2016-07-28 | A kind of multicomponent nitride and boride collaboration enhancing self protection pile-up welding flux core welding wire |
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| CN201610609701.4A CN106001995B (en) | 2016-07-28 | 2016-07-28 | A kind of multicomponent nitride and boride collaboration enhancing self protection pile-up welding flux core welding wire |
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| CN106001995B CN106001995B (en) | 2018-07-31 |
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| CN107052621A (en) * | 2016-11-30 | 2017-08-18 | 安徽华众焊业有限公司 | High rigidity self protection pile-up welding flux core welding wire and preparation method thereof |
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| CN107186379A (en) * | 2017-05-12 | 2017-09-22 | 天长市通联焊业有限公司 | A kind of low-alloy structural steel flux-cored wire and preparation method thereof |
| CN109175779A (en) * | 2018-10-23 | 2019-01-11 | 郑州大学 | A kind of bridge steel Q500qE flux-cored wire used for welding |
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| CN106624426B (en) * | 2016-11-29 | 2018-09-21 | 辽宁大学 | A kind of abrasion-resistant coatings autoreaction flux-cored wire and its preparation and application |
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| CN107186379A (en) * | 2017-05-12 | 2017-09-22 | 天长市通联焊业有限公司 | A kind of low-alloy structural steel flux-cored wire and preparation method thereof |
| CN107186381A (en) * | 2017-05-17 | 2017-09-22 | 安徽飞弧焊业股份有限公司 | A kind of cement bin material liner plate flux-cored wire |
| CN109175779A (en) * | 2018-10-23 | 2019-01-11 | 郑州大学 | A kind of bridge steel Q500qE flux-cored wire used for welding |
| CN112276414A (en) * | 2020-10-21 | 2021-01-29 | 三门峡市中乌科技创新研究院 | High-hardness wear-resistant flux-cored wire and flux-cored powder thereof |
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