CN106736014A - A kind of excellent wear-resisting alkaline flux-cored wire of the excellent welding performance of welding performance and preparation method - Google Patents
A kind of excellent wear-resisting alkaline flux-cored wire of the excellent welding performance of welding performance and preparation method Download PDFInfo
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- CN106736014A CN106736014A CN201611064500.7A CN201611064500A CN106736014A CN 106736014 A CN106736014 A CN 106736014A CN 201611064500 A CN201611064500 A CN 201611064500A CN 106736014 A CN106736014 A CN 106736014A
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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
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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
Abstract
Include by weight percentage with the outer intracutaneous medicine core of mild steel, medicine core component is filled in the invention discloses a kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust：Calcium oxide 10~20%, graphite 3~8%, alkali carbonate 7~13%, nickel 4~7%, manganese 3~6%, rutile 10~15%, almag 5 9%, niobium 0.083~0.11%, ferrochrome 2~3%, quartz 3~5%, nitrogen 0.01~0.03%, zirconium 0.2~2%, balance of iron and inevitable impurity.The invention also discloses a kind of preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance.The present invention is ensureing alkaline flux-cored wire wearability, the comprehensive mechanical property of weld metal has been taken into account, while improving flux-cored wire welding procedure performance, arc stability has been improve, reduce, reduce splashing particle, the requirement of the actual production of satisfaction to wear-resisting welding wire with flux core.
Description
Technical field
The present invention relates to alkaline flux-cored wire technical field, more particularly to a kind of excellent wear-resisting alkaline medicine core of welding performance
Welding wire and preparation method.
Background technology
With industrial expansion, all kinds of plant equipment and part are proposed to the wearability of welding material in industrial processes
Requirement higher, relies primarily on carbon more than existing wearability welding wire using ferrochrome high series, the resistance to wearability of ferrochrome series high
The species of compound, distribution and area, overall hardness are looked into, it is impossible to meet the requirement of high abrasion；And general satisfaction high-wearing feature
The welding wire price of energy is high, increased industrial cost.
Flux-cored wire is novel welding material developed in recent years, different according to drug core component, the alkaline medicine core of distribution
Welding wire, neutral flux-cored wire and solder wire with acidity core.Compared with neutral and solder wire with acidity core, alkaline flux-cored wire has low
Hydrogen, high tenacity, wear-resisting and excellent mechanical property, build in shipbuilding, machinery, petrochemical industry, metallurgy, military project, manufacture of steel structure and engineering
If middle extensive use.But alkaline flux-cored wire processing performance is poor, stagnant molten, generation splashing is susceptible in welding process,
The not good problem of the stability of electric arc.
Therefore, a kind of excellent alkaline flux-cored wire of wear-resisting, welding performance is explored, those skilled in the art is had become urgently
The technical problem that need to be solved.
The content of the invention
The present invention proposes a kind of excellent wear-resisting alkaline flux-cored wire of welding performance and preparation method, and welding performance is excellent
Wear-resisting alkaline flux-cored wire include mild steel crust and be filled in the outer intracutaneous medicine core of mild steel, it is ensured that alkaline flux-cored wire is wear-resisting
Property, while improving flux-cored wire welding procedure performance, meet performance requirement of the practical application to alkaline welding wire.
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance proposed by the present invention, including mild steel crust and be filled in
The outer intracutaneous medicine core of mild steel, medicine core component includes by weight percentage：Calcium oxide 10~20%, graphite 3~8%, alkali metal carbon
Hydrochlorate 7~13%, nickel 4~7%, manganese 3~6%, rutile 6~8%, almag 5~9%, niobium 0.083~0.11%, chromium
Iron 2~3%, quartz 3~5%, nitrogen 0.01~0.03%, zirconium 0.2~2%, balance of iron and inevitable impurity；Wherein,
The K values specified by following formula are 0.013~0.032；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
Preferably, the content of calcium oxide can for 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%,
13.5%th, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%,
19.5%th, 20%, the content of graphite can for 3%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%,
5.5%th, 5.7%, 6%, 6.2%, 6.5%, 6.8%, 7%, 7.2%, 7.5%, 7.8%, 8%, alkali carbonate contains
Amount can for 7%, 7.2%, 7.5%, 7.8%, 8%, 8.2%, 8.5%, 8.8%, 9%, 9.2%, 9.5%, 9.8%,
10%th, 10.2%, 10.5%, 10.8%, 11%, 11.2%, 11.5%, 11.8%, 12%, 12.3%, 12.5%,
12.8%th, 13%, the content of nickel can for 4%, 4.2%, 4.4%, 4.5%, 4.6%, 4.8%, 5%, 5.2%, 5.3%,
5.5%th, 5.6%, 5.8%, 6%, 6.1%, 6.3%, 6.5%, 6.7%, 6.8%, 7%, the content of manganese can for 3%,
3.2%th, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, rutile contains
Amount can for 6%, 6.2%, 6.4%, 6.5%, 6.6%, 6.8%, 7%, 7.1%, 7.3%, 7.5%, 7.6%, 7.8%,
8%, the content of magnadure can for 5%, 5.2%, 5.4%, 5.5%, 5.6%, 6%, 6.2%, 6.4%, 6.5%,
6.6%th, 6.8%, 7%, 7.2%, 7.4%, 7.6%, 7.8%, 8%, 8.2%, 8.4%, 8.6%, 8.8%, 9%, niobium
Content can for 0.083%, 0.084%, 0.085%, 0.086%, 0.087%, 0.088%, 0.089%, 0.090%,
0.091%th, 0.092%, 0.093%, 0.094%, 0.095%, 0.096%, 0.097%, 0.098%, 0.099%,
0.10%th, 0.11%, the content of ferrochrome can for 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%,
2.8%th, 2.9%, 3%, the content of quartz can for 3%, 3.2%, 3.4.%, 3.5%, 3.6%, 3.7%, 3.9%,
4.%th, 4.1%, 4.3.%, 4.5%, 4.6%, 4.8%, 5%, the content of nitrogen can for 0.01%, 0.011%, 0.013%,
0.014%th, 0.015%, 0.016%, 0.018%, 0.020%, 0.022%, 0.024%, 0.025%, 0.026%,
0.028%th, 0.03%, the content of zirconium can for 0.2%, 0.5%, 0.7%, 0.9%, 1%, 1.1%, 1.3%, 1.5%,
1.6%th, 1.8%, 1.9%, 2%.
Preferably, K values can for 0.013,0.014,0.015,0.016,0.017,0.018,0.019,0.020,
0.021、0.022、0.023、0.024、0.025、0.026、0.027、0.028、0.029、0.030、0.031、0.032。
Preferably, alkali carbonate includes one or more mixtures in lithium carbonate, potassium carbonate, sodium carbonate.
Preferably, alkali carbonate includes lithium carbonate, potassium carbonate and sodium carbonate.
Preferably, lithium carbonate, potassium carbonate, sodium carbonate weight proportion are 7~9：3~5：2~4.
Preferably, lithium carbonate, potassium carbonate, sodium carbonate weight proportion are 8：4：3.
Preferably, medicine core accounts for flux-cored wire percetage by weight for 20-25%.
Preferably, medicine core component includes by weight percentage：Calcium oxide 15%, graphite 5%, alkali carbonate 10%,
Nickel 6%, manganese 4.5%, rutile 7%, magnadure 8%, niobium 0.095%, ferrochrome 2.5%, quartz 4%, nitrogen 0.02%, zirconium
1.0%, balance of iron and inevitable impurity；
A kind of preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance, comprises the following steps：
S1：Calcium oxide, graphite and alkali carbonate in medicine core are weighed by proportioning, is well mixed, ball milling is dried to obtain mixed
Compound material；
S2：Surplus stock in medicine core is weighed by proportioning, is well mixed with the mixed material that S1 is obtained, ball milling, sieving is obtained
Medicine core powder；
S3：Mild-carbon steel strip is carried out to show cleaning, is dried, be rolled into the U-shaped U-shaped mild-carbon steel strip of formation, medicine core powder added U-shaped
In mild-carbon steel strip, U-shaped mild-carbon steel strip is rolled into the O-shaped O-shaped mild-carbon steel strip of formation；
S4：The O-shaped mild-carbon steel strip that S3 is obtained is drawn into silk material, redraing is carried out after the silk material rolling that will have been drawn, obtained
To the excellent wear-resisting alkaline flux-cored wire of welding performance.
Preferably, S1 Ball-milling Times are 30-60min.
Preferably, mixed material particle diameter is less than 200 mesh after S1 ball millings.
Preferably, in S1, drying temperature is 150 DEG C, and drying time is 10-20min.
Preferably, S2 Ball-milling Times are 1-1.5h.
Preferably, the particle diameter of medicine core powder is less than 400 mesh after S2 ball millings.
Preferably, S3 drying temperatures are 90-100 DEG C, and drying time is 10-20min.
Preferably, O-shaped steel band is drawn to the silk material of a diameter of 2.5-3.0mm in S4.
Preferably, silk material is controlled to go out linear velocity for 6m/s in S4.
Preferably, in S4, to a diameter of 1.2-2.0mm of welding wire after redraing.
Wherein, the effect of each component is as follows：
Calcium oxide：Regulation slag basicity, improves weld metal impact flexibility, reduces quartz O2Activity, is conducive to zirconium O2Shape
Core, promotes acicular ferrite nucleating, so as to improve weld metal impact flexibility.Oxidation hypocalcia does not play the work for improving toughness
With；Excessive to uprise slag fusing point again, slag aggregation is agglomerating, and appearance of weld is deteriorated, and is splashed during welding and becomes changeable big.
Graphite：Increase the wearability and intensity of weld seam, increase the electric conductivity of welding wire, ionizing efficiency is improved, with alkali metal carbon
Acid strengthens weld metal heat transfer rate with the use of the stability for improving electric arc, reduces diffusible hydrogen.
Alkali carbonate：Effective degree of ionization of electric arc is improved, makes electric arc be easy to swash in welding process so as to stabilization
Electric arc, reduces molten drop and splashes.
Nickel：Be conducive to improving the toughness especially low-temperature impact toughness of weld metal, reduce brittle transition temperature；With ferrochrome
It is reasonably combined, the phase in version process of weld metal can be effectively controlled, obtain answering for martensite and a certain proportion of retained austenite
It is charge-coupled to knit, so as to take into account crack resistance high, high intensity and high tenacity.
Manganese：Improve appearance of weld, improve the plasticity and toughness of deposited metal.
Rutile：As slag former, due to TiO when rutile content is too high2The form of Welding seam inclusion, golden red can be influenceed
The consumption of stone is controlled in the range of 6~8%.
Magnadure：Cooperateed with as deoxidier with rutile, while the nitride of stabilization can be formed, make welding wire solid solution strong
Change, improve the mechanical strength of welding wire.
Niobium：Crystal grain thinning, strengthen welding wire plasticity and toughness, while with C-shaped into carbide, strengthen weld metal hardness
And wearability, the precipitation quantity of niobium carbide influence chromium carbide and precipitation time.
Rutile, magnadure, niobium three collocation are used in the present invention, when Ti, Al and Nb three proportioning reach balance, energy
Produce strong deoxidation process so that weld metal field trash is grown up in a short time in welding process, promote needle-like iron element
The growth of body, enhances the toughness of weld seam.
Ferrochrome：Chromium is one of effective element of raising weld metal intensity, with thinning weld metal structure, increases through hardening
The function of property.
Quartz：Main turning into is SiO2Play a part of to strengthen weld seam, the toughness of weld seam can be excessively reduced due to silicone content,
It is 3~5% that the present invention controls quartz content.
Nitrogen：Nitride is formed in welding process, the quantity of nitride exceedes certain limit, weld metal can be caused to impact
The decline of toughness；And nitrogen content is too low, the nitride in deposited metals is few, poor mechanical property, therefore, it is 0.01 to control nitrogen content
~0.03%.
Present invention graphite in medicine core is uniformly distributed in weld metal, is used with slag former collocation and forms hard structure,
Strengthen the tensile strength and wearability of weld metal, while adapted alkali carbonate improves the stability of electric arc, reduce, reduce
Molten drop splashes, and graphite accelerates the heat transfer rate of deposited metal, deposited molten metal is heated evenly in welding, reduces weld metal
Internal stress, effectively reduce weld crack, improve the welding performance of alkali metal welding wire；The weight of control titanium, aluminium, niobium and nitrogen
Proportioning, and determination content functional relation：0.013≤0.29 [Ti]+0.52 [Al]+0.27 [Nb]-[N]≤0.032, when
When titanium, aluminium, niobium and nitrogen are in the functional relation, the welding performance of welding wire is optimal, can effectively reduce the appearance of cold crack, and
The intensity and toughness of weld metal are turned round and look at, have added nickel to improve the toughness of weld metal especially low-temperature impact toughness, closed with ferrochrome
Haircut obtains the complex group of martensite and a certain proportion of retained austenite with the phase in version process that can effectively control weld metal
Knit, improve the hardness and wearability of weld seam.The present invention is ensureing alkaline flux-cored wire wearability, has taken into account the comprehensive of weld metal
Mechanical property is closed, while improving flux-cored wire welding procedure performance, arc stability is improve, reduced, reduced splashing
Grain, the requirement of the actual production of satisfaction to wear-resisting welding wire with flux core.
Specific embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 10%, graphite 3%, alkali carbonate 7%, nickel 4%, manganese 3%, golden red
Stone 6%, magnadure 5%, niobium 0.11%, ferrochrome 2%, quartz 3%, nitrogen 0.03%, zirconium 0.2% and can not be kept away balance of iron
The impurity exempted from；Wherein, the K values for being specified by following formula are 0.013；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
Embodiment 2
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 20%, graphite 8%, lithium carbonate 13%, nickel 7%, manganese 6%, rutile
8%, magnadure 9%, niobium 0.083%, ferrochrome 3%, quartz 5%, nitrogen 0.01%, zirconium 2%, balance of iron and inevitably
Impurity；Wherein, the K values for being specified by following formula are 0.032；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
Embodiment 3
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 15%, graphite 5%, potassium carbonate 5%, sodium carbonate 5%, nickel 6%, manganese
4.5%, rutile 7%, magnadure 8%, niobium 0.095%, ferrochrome 2.5%, quartz 4%, nitrogen 0.02%, zirconium 1.0%, surplus
It is iron and inevitable impurity；The filling rate of medicine core is 20%, wherein, the K values specified by following formula are 0.021；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
Embodiment 4
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 11%, graphite 3.5%, lithium carbonate 7%, potassium carbonate 3%, sodium carbonate 2%,
Nickel 4.5%, manganese 5.2%, rutile 6.5%, magnadure 5.5%, niobium 0.088%, ferrochrome 2.2%, quartz 3.5%, nitrogen
0.025%, zirconium 0.7%, balance of iron and inevitable impurity；The filling rate of medicine core is 25%, wherein, specified by following formula
K values are 0.015；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
The excellent wear-resisting alkaline flux-cored wire of welding performance is comprised the following steps：
S1：Calcium oxide, graphite and alkali carbonate in medicine core are weighed by proportioning, is well mixed, ball milling is dried to obtain mixed
Compound material；
S2：Surplus stock in medicine core is weighed by proportioning, is well mixed with the mixed material that S1 is obtained, ball milling, sieving is obtained
Medicine core powder；
S3：Mild-carbon steel strip is carried out to show cleaning, is dried, be rolled into the U-shaped U-shaped mild-carbon steel strip of formation, medicine core powder added U-shaped
In mild-carbon steel strip, U-shaped mild-carbon steel strip is rolled into the O-shaped O-shaped mild-carbon steel strip of formation；
S4：The O-shaped mild-carbon steel strip that S3 is obtained is drawn into silk material, redraing is carried out after the silk material rolling that will have been drawn, obtained
To the excellent wear-resisting alkaline flux-cored wire of welding performance.
Embodiment 5
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 16.5%, graphite 5.2%, lithium carbonate 4.5%, potassium carbonate 2.5%, carbonic acid
Sodium 2%, nickel 6.3%, manganese 3.8%, rutile 7.1%, magnadure 7.8%, niobium 0.091%, ferrochrome 2.8%, quartz
3.4%, nitrogen 0.018%, zirconium 1.3%, balance of iron and inevitable impurity；The filling rate of medicine core is 22%, wherein, under
The K values that formula specifies are 0.023；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
The excellent wear-resisting alkaline flux-cored wire of welding performance is comprised the following steps：
S1：Calcium oxide, graphite and alkali carbonate in medicine core are weighed by proportioning, is well mixed, ball milling 30min is to mixing
Material particular diameter is less than 200 mesh, and drying 10min under the conditions of being 150 DEG C in temperature obtains mixed material；
S2：Surplus stock in medicine core is weighed by proportioning, is well mixed with the mixed material that S1 is obtained, ball milling 1h, cross 400 mesh
Sieve obtains medicine core powder；
S3：Low-carbon alloy steel band is carried out to show cleaning, 10min is dried under the conditions of being 90 DEG C in temperature, be rolled into U-shaped formation
U-shaped mild-carbon steel strip, medicine core powder is added in U-shaped steel band, and steel band is rolled into the O-shaped O-shaped mild-carbon steel strip of formation；
S4：The O-shaped steel band that S3 is obtained is drawn to the silk material of a diameter of 2.5mm, controls silk material to go out linear velocity for 6m/s, will
Redraing obtains the excellent wear-resisting alkaline flux-cored wire of welding performance to a diameter of 1.2mm after the silk material rolling drawn.
Embodiment 6
A kind of excellent wear-resisting alkaline flux-cored wire of welding performance, including mild steel crust and it is filled in the outer intracutaneous of mild steel
Medicine core, medicine core includes by weight percentage：Calcium oxide 19%, graphite 6.8%, lithium carbonate 4%, potassium carbonate 2%, sodium carbonate
1.5%, nickel 5.3%, manganese 5.8%, rutile 8%, magnadure 8.2%, niobium 0.096%, ferrochrome 0.27%, quartz 4.3%,
Nitrogen 0.012%, zirconium 0.9%, balance of iron and inevitable impurity；The filling rate of medicine core is 23%, wherein, specified by following formula
K values be 0.031；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents golden red
Stone is converted into percentage by weight of the Ti content in medicine core component, and [Nb] represents weight percent of the content of niobium in medicine core component
Than [N] represents percentage by weight of the nitrogen content in medicine core component.
The excellent wear-resisting alkaline flux-cored wire of welding performance is comprised the following steps：
S1：Calcium oxide, graphite and alkali carbonate in medicine core are weighed by proportioning, is well mixed, ball milling is dried to obtain mixed
Compound material；
S2：Surplus stock in medicine core is weighed by proportioning, is well mixed with the mixed material that S1 is obtained, ball milling 1.5h, cross 400
Mesh sieve obtains medicine core powder；
S3：Low-carbon alloy steel band is carried out to show cleaning, 20min is dried under the conditions of being 100 DEG C in temperature, be rolled into U-shaped shape
Into U-shaped mild-carbon steel strip, medicine core powder is added in U-shaped steel band, steel band is rolled into the O-shaped O-shaped mild-carbon steel strip of formation；
S4：The O-shaped steel band that S3 is obtained is drawn to the silk material of a diameter of 3.0mm, controls silk material to go out linear velocity for 6m/s, will
Redraing obtains the excellent wear-resisting alkaline flux-cored wire of welding performance to a diameter of 2.0mm after the silk material rolling drawn.
By the anti-wear performance of the excellent wear-resisting alkaline flux-cored wire of welding performance obtained in embodiment 5-6 and ferrochrome welding wire high
Tested, test result is as shown in the table：
| Relative wear resistance (ε) | Tensile strength/MPa | Spatter loss coefficient/% | |
| Embodiment 5 | 2.85 | 750 | 1.6 |
| Embodiment 6 | 2.86 | 756 | 1.5 |
| Ferrochrome welding wire high | 2.03 | 703 | 2.8 |
The present invention adds graphite and slag former collocation using the wearability for enhancing weld seam as can be seen from the above table, and magnalium is closed
Gold and rutile synergy enhance the solid solution phase of deposited metal, further increase the wearability and intensity of weld metal,
The proportioning of Ti, Al, Nb and N is controlled simultaneously, significantly reduces molten drop splashing.The present invention has wearability compared with ferrochrome welding wire high
More preferably, good compression strength is provided simultaneously with, welding process spatter loss coefficient is low, and welding performance is good.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (10)
1. the excellent wear-resisting alkaline flux-cored wire of a kind of welding performance, it is characterised in that including mild steel crust and be filled in low
The outer intracutaneous medicine core of carbon steel, medicine core component includes by weight percentage：Calcium oxide 10~20%, graphite 3~8%, alkali metal carbonic acid
Salt 7~13%, nickel 4~7%, manganese 3~6%, rutile 6~8%, almag 5~9%, niobium 0.083~0.11%, ferrochrome 2
~3%, quartz 3~5%, nitrogen 0.01~0.03%, zirconium 0.2~2%, balance of iron and inevitable impurity；Wherein, under
The K values that formula specifies are 0.013~0.032；
K=29 [Ti]+52 [Al]+27 [Nb] -100 [N]；
Wherein [Al] represents that almag is converted into percentage by weight of the aluminium content in medicine core component, and [Ti] represents rutile folding
Percentage by weight of the synthesis Ti content in medicine core component, [Nb] represents percentage by weight of the content of niobium in medicine core component, [N]
Represent percentage by weight of the nitrogen content in medicine core component.
2. the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 1, it is characterised in that alkali metal carbonic acid
Salt includes one or more mixtures in lithium carbonate, potassium carbonate, sodium carbonate.
3. the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 2, it is characterised in that alkali metal carbonic acid
Salt includes lithium carbonate, potassium carbonate and sodium carbonate.
4. the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 1, it is characterised in that medicine core accounts for medicine core
Welding wire percetage by weight is 20-25%.
5. the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim any one of 1-4, it is characterised in that medicine
Core component includes by weight percentage：Calcium oxide 15%, graphite 5%, alkali carbonate 10%, nickel 6%, manganese 4.5%, golden red
Stone 7%, magnadure 8%, niobium 0.095%, ferrochrome 2.5%, quartz 4%, nitrogen 0.02%, zirconium 1.0%, balance of iron and can not
The impurity for avoiding；
6. the preparation side of the excellent wear-resisting alkaline flux-cored wire of a kind of welding performance according to claim any one of 1-5
Method, it is characterised in that comprise the following steps：
S1：Calcium oxide, graphite and alkali carbonate in medicine core are weighed by proportioning, is well mixed, ball milling is dried to obtain mixture
Material；
S2：Surplus stock in medicine core is weighed by proportioning, is well mixed with the mixed material that S1 is obtained, ball milling, sieving obtains medicine core
Powder；
S3：Mild-carbon steel strip is carried out to show cleaning, is dried, be rolled into the U-shaped U-shaped mild-carbon steel strip of formation, medicine core powder is added into U-shaped low-carbon (LC)
In steel band, U-shaped mild-carbon steel strip is rolled into the O-shaped O-shaped mild-carbon steel strip of formation；
S4：The O-shaped mild-carbon steel strip that S3 is obtained is drawn into silk material, redraing is carried out after the silk material rolling that will have been drawn, welded
Connect the wear-resisting alkaline flux-cored wire of function admirable.
7. the preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 6, it is characterised in that
In S1, mixed material particle diameter is less than 200 mesh after ball milling.
8. the preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 6, it is characterised in that
In S1, drying temperature is 150 DEG C, and drying time is 10-20min.
9. the preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 6, it is characterised in that
In S2, the particle diameter of medicine core powder is less than 400 mesh after ball milling.
10. the preparation method of the excellent wear-resisting alkaline flux-cored wire of welding performance according to claim 6, its feature exists
In in S4, to a diameter of 1.2-2.0mm of welding wire after redraing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064500.7A CN106736014A (en) | 2016-11-28 | 2016-11-28 | A kind of excellent wear-resisting alkaline flux-cored wire of the excellent welding performance of welding performance and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064500.7A CN106736014A (en) | 2016-11-28 | 2016-11-28 | A kind of excellent wear-resisting alkaline flux-cored wire of the excellent welding performance of welding performance and preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN106736014A true CN106736014A (en) | 2017-05-31 |
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|---|---|---|---|
| CN201611064500.7A Pending CN106736014A (en) | 2016-11-28 | 2016-11-28 | A kind of excellent wear-resisting alkaline flux-cored wire of the excellent welding performance of welding performance and preparation method |
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| CN (1) | CN106736014A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914099A (en) * | 2017-11-27 | 2018-04-17 | 四川大西洋焊接材料股份有限公司 | Rutile-type flux-cored wire of 800MPa grades of tensile strength and preparation method thereof |
| CN110773905A (en) * | 2019-10-17 | 2020-02-11 | 北京奥邦新材料有限公司 | Steel welding flux-cored wire for high heat input welding, preparation method and welding method thereof |
| CN112719687A (en) * | 2020-12-17 | 2021-04-30 | 中国人民解放军陆军装甲兵学院 | Flux-cored wire for underwater welding |
-
2016
- 2016-11-28 CN CN201611064500.7A patent/CN106736014A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914099A (en) * | 2017-11-27 | 2018-04-17 | 四川大西洋焊接材料股份有限公司 | Rutile-type flux-cored wire of 800MPa grades of tensile strength and preparation method thereof |
| CN110773905A (en) * | 2019-10-17 | 2020-02-11 | 北京奥邦新材料有限公司 | Steel welding flux-cored wire for high heat input welding, preparation method and welding method thereof |
| CN112719687A (en) * | 2020-12-17 | 2021-04-30 | 中国人民解放军陆军装甲兵学院 | Flux-cored wire for underwater welding |
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