CN109262164A - A kind of bainitic steel track switch soldering welding rod and preparation method thereof - Google Patents
A kind of bainitic steel track switch soldering welding rod and preparation method thereof Download PDFInfo
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- CN109262164A CN109262164A CN201811375164.7A CN201811375164A CN109262164A CN 109262164 A CN109262164 A CN 109262164A CN 201811375164 A CN201811375164 A CN 201811375164A CN 109262164 A CN109262164 A CN 109262164A
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- bainitic steel
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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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3602—Carbonates, basic oxides or hydroxides
-
- 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
-
- 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
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention provides a kind of bainitic steel track switch soldering welding rods, comprising: core wire；The coating being coated on outside the core wire；The coating includes: marble；Fluorite；Titanium dioxide；Manganese metal；Crome metal；Rutile；Molybdenum-iron；Sodium carboxymethylcellulose；Soda ash；Vanadium iron；Nickel powder；Ferrosilicon；Graphite.The present invention uses the coating of special composition, it is reasonably prepared especially by the dosage to ingredient each in coating, this welding rod is set to be particularly suitable for carrying out soldering to bainitic steel track switch, arc stability, splashing are few when soldering, de- slag is easy, appearance of weld is good, and region tensile strength, yield strength, extensibility, the ballistic work performance after soldering are higher.The present invention also provides a kind of preparation methods of bainitic steel track switch soldering welding rod.
Description
Technical field
The present invention relates to welding rod technical field more particularly to a kind of bainitic steel track switch soldering welding rod and its preparations
Method.
Background technique
Bainitic steel track switch is mainly used for railway track shunting, He Daochu, is the necessary component of rail, transports for track
The indispensable composition part of defeated line plays huge effect for the transport of the development of the national economy.
With China's rapid development of economy, railway systems were advanced by leaps and bounds, it is contemplated that China railways line overall length in 2025
It will be up to 200,000 kilometers.Huge carrying capacity and complicated severe operating environment are the important features of Chinese Railway, lead to Gao Meng
The removing of steel track switch, chip off-falling, be collapsed, crackle equivalent damage are extremely serious.Currently, China's high-speed rail route overall length is up to 2.2 ten thousand kilometers, goods
Freight volume also greatly increases, and which increase the abrasion of rail track and operation cost, especially track switch position usually serious wears, and
And the large labor intensity of track switch is replaced, raw material and track switch cost are high, and therefore, research and development are dedicated for track switch Repair Welding
Welding rod has become a top priority.
Currently, the mode that the substantially also unexecuted multiple Repair Welding track switch in China reuses, using different dedicated welderings
Item carries out soldering to the track switch of unlike material and carries out polishing finishing again, is able to extend the service life of track switch, and be greatly reduced because
Track switch bring cost is replaced, it is important and far-reaching to ensuring safe railway operation also and having to reduce the operation cost of railway
Meaning.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of bainitic steel track switch soldering welding rod and its preparation sides
Method, welding rod provided by the invention are used for soldering bainitic steel intensity with higher, anti-rolling property and low-temperature flexibility.
Potassium steel track switch soldering welding rod provided by the invention, comprising:
Core wire；
The coating being coated on outside the core wire.
In the present invention, the compositions of surfacing metal is in parts by weight, comprising:
42~63 parts of marble；
21~32 parts of fluorite；
1~6 part of titanium dioxide；
3~10 parts of manganese metal；
2~8 parts of crome metal；
2~8 parts of rutile；
2~6 parts of molybdenum-iron；
0.2~0.7 part of sodium carboxymethylcellulose；
0.5~1 part of soda ash；
0.8~2 part of vanadium iron；
7~15 parts of ferrosilicon；
1~3 part of nickel powder；
0.2~0.8 part of graphite.
In the present invention, the core wire is preferably carbon steel welding wire core wire.In the present invention, the ingredient of the core wire preferably wraps
It includes:
The C of < 0.1wt%；
The Mn of 0.30~0.55wt%；
The Si of≤0.04wt%；
The Cr of≤0.20wt%；
The Ni of≤0.30wt%；
The S of≤0.03wt%；
The P of≤0.03wt%；
The Fe of 98.76~99.01wt%.
In the present invention, mass content of the C in core wire is preferably 0.01~0.09%, more preferably 0.02~
0.08%, more preferably 0.03~0.07%, most preferably 0.04~0.06%.In the present invention, the Mn is in core wire
Mass content is preferably 0.35~0.50%, and more preferably 0.4~0.45%, most preferably 0.42~0.43%.In the present invention
In, mass content of the Si in core wire is preferably 0.01~0.04%, and more preferably 0.02~0.03%, most preferably
0.025%.In the present invention, mass content of the Cr in core wire is preferably 0.01~0.2%, more preferably 0.05~
0.15%, most preferably 0.08~0.12%.In the present invention, mass content of the Ni in core wire be preferably 0.01~
0.3%, more preferably 0.05~0.25%, more preferably 0.1~0.2%, most preferably 0.13~0.17%.In the present invention
In, mass content of the S in core wire is preferably 0.01~0.03%, and more preferably 0.015~0.025%, most preferably
0.02%.In the present invention, mass content of the P in core wire is preferably 0.01~0.03%, more preferably 0.015~
0.025%, most preferably 0.02%.In the present invention, mass content of the Fe in core wire is preferably 98.8~98.9%,
More preferably 98.83~98.85%.
In the present invention, the chemical component of the carbon steel welding wire core wire is preferred are as follows:
C:0.08wt%；
Mn:0.43wt%；
Si:0.04wt%；
Cr:0.03wt%；
Ni:0.04wt%；
S:0.005wt%；
P:0.01wt%；
Surplus is Fe.
The present invention does not have special limitation to the source of the core wire, can be bought and be obtained by market, H08A type such as can be used
Number 4 two kinds of specifications of Φ 3.2 and Φ core wire, can be provided by Yonggang Group Co., Jiangsu Prov..
In the present invention, the marble had not only cooked gas-forming agent but also had cooked slag former, when marble decomposites gas, can provide pair
The blowing force of molten drop, reduces and splashes, and the CaO decomposited can stablize electric arc and good desulphurizing ability.
In the present invention, the marmorean parts by weight are preferably 50~55 parts, more preferably 51,52 or 53 parts.This
Invention is suitable for the marble using above-mentioned dosage, and marble dosage is excessively high, is also easy to produce soldering stomata.The present invention uses this dosage
Marble can make obtain welding rod be more suitable for the soldering of bainitic steel track switch, while make welding after overlay
With good mechanical property.
In the present invention, CaCO in the marble3Mass content preferably >=96%, more preferably 97~99%, most
Preferably 98%.The present invention does not have special limitation to the marmorean type and source, ripe using those skilled in the art
The marble known can be bought by market and be obtained.In the present invention, the marble is preferably marble powder, described big
The granularity of fibrous gypsum powder is preferably that -40 mesh 100% pass through.
In the present invention, the fluorite is slag former, plays the role of the fusing point and viscosity that reduce slag, and shoddye makes to melt
Pond reaction is active, improves the removability of slag.The effect that fluorite removes hydrogen blistering is largely effective.
In the present invention, the parts by weight of the fluorite are preferably 25~30 parts, more preferably 25 parts, 26 parts or 27 parts.
The present invention is suitable for the fluorite using above-mentioned dosage, and with the increase of fluorite content in coating, the hydrogen content in soldering overlay subtracts
Few, fluorite content is too low, then its shoddye scarce capacity, fluorite too high levels, then arc stability declines.The present invention is using above-mentioned
The fluorite of dosage can make the welding rod obtained more be suitable for the soldering of bainitic steel track switch, and be formed after soldering molten
Coating has better mechanical property.
In the present invention, CaF in the fluorite2Mass content preferably >=96%, more preferably 97~99%, most preferably
It is 98%.The present invention does not have special limitation to the type of the fluorite and source, using firefly well known to those skilled in the art
Stone can be bought by market and be obtained.In the present invention, the fluorite is preferably fluorite powder, the granularity of the fluorite powder
Preferably -40 mesh 100% pass through.
The present invention adds titanium dioxide in compositions of surfacing metal, and the welding rod obtained can be made to be suitable for bainitic steel track switch
Soldering, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the titanium dioxide are preferably 2~5 parts, more preferably 3 parts, 3.5 parts or 4 parts.This
Invention is suitable for the titanium dioxide using above-mentioned dosage.In the present invention, the granularity of the titanium dioxide is preferably that -100 mesh 100% are logical
It crosses.The present invention does not have special limitation to the type of the titanium dioxide and source, using titanium white well known to those skilled in the art
Powder can be bought by market and be obtained.
In the present invention, the manganese metal is both that alloying constituent has both deoxidation again, can be avoided Mn and Si by excessive oxygen
Change, to guarantee the mechanical mechanics property of overlay.
In the present invention, the parts by weight of the manganese metal are preferably 5~8 parts, more preferably 6.8 parts, 7 parts or 7.5 parts.
The present invention is suitable for the manganese metal using above-mentioned dosage, and excessive manganese metal will increase MnO amount, increase slag basicity, mobility
It is deteriorated, it is difficult to take off slag.The present invention can make the welding rod obtained more be suitable for bainite using the manganese metal of above-mentioned dosage
The soldering of steel track switch, and the overlay formed after soldering has better mechanical property.
In the present invention, the granularity of the manganese metal is preferably that -40 mesh 100% pass through.In the present invention, the manganese metal
Preferably electrolytic manganese.The present invention does not have special limitation to the source of the manganese metal, and use is well known to those skilled in the art
Above-mentioned manganese metal can be bought by market and be obtained.
In the present invention, the parts by weight of the crome metal are preferably 3~5 parts, more preferably 3.7 parts, 3.8 parts or 4 parts.
The present invention is suitable for the crome metal using above-mentioned dosage, and the welding rod obtained can be made more to be suitable for the weldering of bainitic steel track switch
It mends, and the overlay formed after soldering has better mechanical property.
In the present invention, the granularity of the crome metal is preferably that -40 mesh 100% pass through.The present invention is to the crome metal
Type and source do not have special limitation, using crome metal well known to those skilled in the art, can be bought and be obtained by market.
In the present invention, the parts by weight of the rutile are preferably 2~6 parts, more preferably 2~4 parts, most preferably 2
Part, 2.5 parts or 2.6 parts.The present invention is suitable for the rutile using above-mentioned dosage.In the present invention, the rutile is preferably gold
Red mountain flour body, the granularity of the rutile powder are preferably that -40 mesh 100% pass through.The present invention to the type of the rutile and
Source does not have special limitation, using rutile well known to those skilled in the art, can be bought and be obtained by market.
In the present invention, the parts by weight of the molybdenum-iron are preferably 3~5 parts, and more preferably 3.5~4.5 parts, most preferably
3.5 parts, 3.6 parts or 3.7 parts.The present invention is suitable for the molybdenum-iron using above-mentioned dosage, and can make the welding rod obtained is more suitable for using
In the soldering of bainitic steel track switch, and the overlay formed after soldering has better mechanical property.
The present invention does not have special limitation to the type of the molybdenum-iron and source, using molybdenum well known to those skilled in the art
Iron can be bought by market and be obtained.In the present invention, the molybdenum-iron is preferably molybdenum-iron powder, the grain of the molybdenum-iron powder
Degree is preferably that -40 mesh 100% pass through.
The present invention adds sodium carboxymethylcellulose in compositions of surfacing metal, and the welding rod obtained can be made to be suitable for bainite
The soldering of steel track switch, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the sodium carboxymethylcellulose are preferably 0.2~0.5 part, more preferably 0.2~
0.3 part, most preferably 0.2 part.The present invention is suitable for the sodium carboxymethylcellulose (CMC) using above-mentioned dosage.The present invention is to described
The type of sodium carboxymethylcellulose and source do not have special limitation, can using soda ash well known to those skilled in the art
It is bought and is obtained by market.
The present invention adds soda ash in compositions of surfacing metal, and the welding rod obtained can be made to be suitable for the weldering of bainitic steel track switch
It mends, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the soda ash are preferably 0.6~0.8 part, more preferably 0.6~0.7 part, optimal
It is selected as 0.6 part.The present invention is suitable for the soda ash using above-mentioned dosage, and the soda ash is as lubricant to improve welding rod on hydraulic press
Extrusion performance, and there is stabilising arc effect, but unsuitable excess is added, otherwise lead to the easy moisture absorption of coating.The present invention uses above-mentioned use
The deposition that the soda ash of amount can make the welding rod obtained more be suitable for the soldering of bainitic steel track switch, and be formed after soldering
Layer has better mechanical property.The present invention does not have special limitation to the type of the soda ash and source, using this field skill
Soda ash known to art personnel can be bought by market and be obtained.
The present invention adds vanadium iron in compositions of surfacing metal, and the welding rod obtained can be made to be suitable for the weldering of bainitic steel track switch
It mends, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the vanadium iron are preferably 1~1.8 part, and more preferably 1.2~1.6 parts, most preferably
It is 1.3 parts, 1.4 parts or 1.5 parts.The present invention is suitable for the vanadium iron using above-mentioned dosage.The present invention is to the type of the vanadium iron and comes
Source does not have special limitation, and using vanadium iron well known to those skilled in the art, low vanadium iron such as can be used, can be purchased by market
Buy acquisition.In the present invention, the vanadium iron is preferably ferrovanadium dust, and the granularity of the ferrovanadium dust is preferably that -40 mesh 100% are logical
It crosses.
In the present invention, the ferrosilicon is both that alloying constituent has both deoxidation again, can be avoided Mn and Si is excessively oxidated,
To guarantee the mechanical mechanics property of overlay.The present invention adds ferrosilicon in compositions of surfacing metal, and the welding rod obtained can be made suitable
For the soldering of bainitic steel track switch, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the ferrosilicon are preferably 10~14 parts, and more preferably 11~12 parts, most preferably
11 parts, 11.5 parts or 12 parts.Present invention preferably employs above-mentioned ferrosilicon dosage, excessive ferrosilicon can aggravate the metallurgical chemistry in molten bath
Reaction increases explosive splash, and molding is deteriorated, and will lead to the increase of overlay silicone content.The present invention is using above-mentioned dosage
Ferrosilicon can make the welding rod obtained more be suitable for the soldering of bainitic steel track switch, and the overlay tool formed after soldering
There is better mechanical property.
In the present invention, the ferrosilicon is preferably atomized ferrosilicon, and more preferably 45# is atomized ferrosilicon.In the present invention, described
The granularity of ferrosilicon is preferably that -40 mesh 100% pass through.The present invention does not have special limitation to the type of the ferrosilicon and source, adopts
With above-mentioned molybdenum-iron well known to those skilled in the art, it can be bought and be obtained by market.
In the present invention, the parts by weight of the nickel powder are preferably 1.5~2.5 parts, and more preferably 2~2.3 parts, most preferably
It is 2 parts, 2.1 parts or 2.2 parts.In the present invention, the granularity of the nickel powder is preferably that -40 mesh 100% pass through.The present invention is to described
The type of nickel powder and source do not have special limitation, can be by market using above-mentioned nickel powder well known to those skilled in the art
Purchase obtains.
The present invention adds graphite in compositions of surfacing metal, and the welding rod obtained can be made to be suitable for the weldering of bainitic steel track switch
It mends, and the overlay formed after soldering has better mechanical property.
In the present invention, the parts by weight of the graphite are preferably 0.4~0.6 part, more preferably 0.5~0.6 part, optimal
It is selected as 0.57 part, 0.58 part or 0.6 part.The present invention is suitable for the graphite using above-mentioned dosage.
In the present invention, the graphite is preferably amorphous graphite.In the present invention, the granularity of the graphite preferably-
100 mesh 100% pass through.The present invention does not have specific limitation to the type of the graphite and source, ripe using those skilled in the art
The graphite for the mentioned kind known can be bought by market and be obtained.
In the present invention, the ingredient of the coating in parts by weight, preferably includes:
53 parts of marble, 25 parts of fluorite, 4 parts of titanium dioxide, 7.5 parts of manganese metal, 4 parts of crome metal, 2 parts of rutile, molybdenum-iron 3.5
Part, 0.2 part of sodium carboxymethylcellulose, 0.6 part of soda ash, 1.5 parts of vanadium iron, 12 parts of ferrosilicon, 2 parts of nickel powder and 0.6 part of graphite.
In the present invention, the ingredient of the coating in parts by weight, preferably includes:
52 parts of marble, 26 parts of fluorite, 3.5 parts of titanium dioxide, 7 parts of manganese metal, 3.8 parts of crome metal, 2.5 parts of rutile, molybdenum
3.6 parts of iron, 0.2 part of sodium carboxymethylcellulose, 0.6 part of soda ash, 1.4 parts of vanadium iron, 11.5 parts of ferrosilicon, 2.1 parts of nickel powder and graphite
0.58 part.
In the present invention, the ingredient of the coating in parts by weight, preferably includes:
51 parts of marble, 27 parts of fluorite, 3 parts of titanium dioxide, 6.8 parts of manganese metal, 3.7 parts of crome metal, 2.6 parts of rutile, molybdenum
3.7 parts of iron, 0.2 part of sodium carboxymethylcellulose, 0.6 part of soda ash, 1.3 parts of vanadium iron, 11 parts of ferrosilicon, 2.2 parts of nickel powder and graphite 0.57
Part.
In the present invention, the weight of the coating is preferably the 45~55% of core wire weight, more preferably 48~52%, most
Preferably 50%.Present invention preferably employs the coating of above-mentioned usage ratio and core wire, the present invention using this dosage coating and
Core wire can further increase the bainitic steel track switch soldering welding rod being prepared, and make its bainitic steel track switch preferably
Soldering makes the overlay obtained after soldering have better mechanical property.
The present invention does not have special limitation to the type and ingredient of the bainitic steel track switch, using those skilled in the art
The well known track switch for belonging to bainitic steel ingredient.
The present invention is for a kind of bainitic steel track switch soldering welding rod of bainitic steel track switch design, to reach on-line off-line
Reparation soldering to the damage of bainitic steel track switch, the present invention use the core wire of special composition, make the deposition generated in welding process
Metal has nickel, chromium and the molybdenum of high level, and manganese, sulphur, the phosphorus of lower content make welding rod provided by the invention for bainitic steel
Track switch soldering has good hardness, low-temperature flexibility and anti-rolling property, and the portion of satisfaction is marked to bainitic steel track switch Repair Welding
All technical.Meanwhile the present invention is by the mutual cooperation effect of the various composition and component content in coating, then with it is upper
The core wire for stating special composition is cooperated, and has good property when realizing the welding rod soldering bainitic steel track switch being prepared
Energy.
The present invention provides a kind of preparation method of bainitic steel track switch soldering welding rod described in above-mentioned technical proposal,
Include:
Each ingredient of coating is wrapped using binder and is baked after on core wire, bainitic steel track switch welding rod is obtained.
Each ingredient of coating is preferably added binder after mixing and stirred evenly by the present invention, then is wrapped on core wire.
The present invention does not have special limit in the specific method on core wire to described wrap each ingredient of coating using binder
System, using it is well known to those skilled in the art prepare welding rod when coating wrapped in the technical solution on core wire, such as may be used
It is welded so that the mixture of binder and each ingredient of coating to be sent into plodder according to method well known to those skilled in the art
Core wraps.
In the present invention, the baking preferably first carries out low temperature baking and carries out high temperature baking again.
In the present invention, the temperature that the low temperature bakes is preferably 70~90 DEG C, and more preferably 75~85 DEG C, most preferably
78~82 DEG C；The time that the low temperature bakes is preferably 3.5~4.5 hours, more preferably 3.8~4.2 hours, most preferably 4
Hour.
In the present invention, the temperature that the high temperature bakes is preferably 370~390 DEG C, more preferably 375~385 DEG C, optimal
It is selected as 380 DEG C；The time that the high temperature bakes is preferably 1~2 hour, and more preferably 1.2~1.8 hours, most preferably 1.4~
1.6 hour.
In the present invention, the quality of the binder is preferably the 4~10% of each Ingredients Weight summation of coating, more preferably
5~9%, most preferably 6~8%.
In the present invention, the binder is preferably waterglass, more preferably sodium silicate, potassium water glass or potassium sodium water glass
Glass, most preferably potassium-sodium water glass.In the present invention, the modulus of the waterglass is preferably 2~3.5, and more preferably 2.5~3,
Most preferably 3.In the present invention, the concentration of the waterglass is preferably 40~45 °, more preferably 41~44 °, most preferably 42
~43 °.
In the present invention, in coating described in the dosage and above-mentioned technical proposal of each ingredient of the coating and each ingredient at
Divide and the dosage of each ingredient is consistent, details are not described herein.In the present invention, the dosage of the coating and core wire and above-mentioned technology
Coating described in scheme is consistent with the dosage of core wire, and details are not described herein.
Bainitic steel track switch provided by the invention uses the core wire of special composition with welding rod, while cooperating special composition
Coating is reasonably prepared especially by the dosage to ingredient each in coating, is particularly suitable for this welding rod to shellfish
Family name's body steel track switch carries out soldering, and welding rod provided by the invention is used for arc stability when the soldering of bainitic steel track switch, splashes less,
De- slag is easy, and appearance of weld is good, and region tensile strength, yield strength, extensibility, the ballistic work performance after soldering are higher, tool
There are good crack resistance, anti-rolling property and low-temperature flexibility.
It generally directly throws away after bainitic steel track switch damage in the prior art, and is welded using presently commercially available welding rod
Added time safety is unreliable, using bainitic steel soldering welding rod provided by the invention can to bainitic steel track switch soldering 3 times,
Extend the service life of bainitic steel track switch.
Bainitic steel track switch soldering electricity consumption welding electrode added time arc stability provided by the invention, slag spreadability are good, splash
It is small, the removability of slag is good, soldering beautiful appearance is bright, the deposited metal after soldering has good low-temperature flexibility, crack resistance and height
Anti-rolling property.
Welding rod provided by the invention can be widely used for the injury repair for the bainitic steel track switch largely laid on railway,
It can be used for the reparation soldering of soldering bainitic steel forging damaged.Welding rod provided by the invention welds bainitic steel track switch
It mends, the requirement feature when deposited metal all technical portion of being all satisfied mark is to bainitic steel track switch soldering.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff it is improved or retouching all other example, shall fall within the protection scope of the present invention.
Raw materials used following embodiment of the present invention is commercial goods, and used core wire is low-sulfur phosphoretic steel silk, ingredient are as follows:
C:0.08wt%, Mn:0.43wt%, Si:0.04wt%, Cr:0.03wt%, Ni:0.04wt%, S:
0.005wt%, P:0.010wt%, surplus Fe.
The core wire of 4.0 specification of Φ 3.2 or Φ of the H08A model provided for Yonggang Group Co., Jiangsu Prov..
Embodiment 1
Compositions of surfacing metal includes: marble 53kg, fluorite 25kg, titanium dioxide 4kg, manganese metal 7.5kg, crome metal 4kg, golden red
Stone 2kg, molybdenum-iron 3.5kg, sodium carboxymethylcellulose 0.2kg, soda ash 0.6kg, vanadium iron 1.5kg, ferrosilicon 12kg and graphite 0.6kg.
The potassium-sodium water glass 7.5kg that concentration is 43 ° is added in the powder of ingredient each in above-mentioned coating after mixing to mix
Uniformly, the mixture of 50kg after mixing is taken, the core wire (specification is Φ 4) of plodder package 100kg is sent into, by 80 DEG C
Low temperature is baked 4 hours and is then baked 1.5 hours in 380 DEG C of high temperature, obtains bainitic steel track switch soldering welding rod.
The bainitic steel track switch soldering use that the embodiment of the present invention 1 is prepared in commission Chongqing instrument function material tests institute
Welding rod, the overlay performance after welding bainitic steel track switch are detected, and testing result is that the embodiment of the present invention 1 is prepared into
Deposition composition of layer after the bainitic steel track switch soldering electricity consumption welding rod welding arrived are as follows:
The P of the S of the Si of the Mn of the C of 0.14wt%, 1.82wt%, 0.40wt%, 0.006wt%, 0.015wt%,
The Nb of the Cu of the V of the Mo of the Cr of 1.9wt%, 0.5wt%, 0.16wt%, 0.028wt%, 0.005wt%, 0.009wt%'s
The Sn of the Sb of the Al of the As of the B of Ti, 0.0003wt%, 0.011wt%, 0.0005wt%, 0.0005wt%, 0.0038wt%,
The Co of the W of 0.0053wt%, 0.0062wt%；Surplus is Fe.
The hardness of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared
It (HBW) is 423,429,429.
The surrender of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared is strong
Spend (Rp0.2) it is 1205MPa.
The tension of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared is strong
Spend (Rm) it is 1305MPa
Having no progeny for overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared is stretched
Long rate (A) is 8%
The section of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared is stretched
Shrinkage (Z) is 19%.
- 40 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared
Impact property (- 40 DEG C of KV2) it is 23J, 28J, 28J.
20 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared
Impact property (20 DEG C of KV2) it is 49J, 44J, 42J.
The X-ray of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 1 is prepared
Series is 1 grade.
Bainitic steel its chemical component of track switch soldering welding rod and mechanical property that the embodiment of the present invention 1 is prepared are equal
Meet requirement of portion's mark to bainitic steel track switch soldering all technical.
Embodiment 2
Compositions of surfacing metal includes: marble 52kg, fluorite 26kg, titanium dioxide 3.5kg, manganese metal 7kg, crome metal 3.8kg, gold
Red stone 2.5kg, molybdenum-iron 3.6kg, sodium carboxymethylcellulose 0.2kg, soda ash 0.6kg, vanadium iron 1.4kg, ferrosilicon 11.5kg and graphite
0.58kg。
The potassium-sodium water glass 8.5kg that concentration is 43 ° is added in the powder of ingredient each in above-mentioned coating after mixing to mix
Uniformly, the mixture of 50kg after mixing is taken, the core wire (specification is Φ 4.0) of plodder package 100kg is sent into, by 75
DEG C low temperature is baked 3.8 hours and is then baked 1.4 hours in 375 DEG C of high temperature, obtains bainitic steel track switch soldering welding rod.
The bainitic steel track switch soldering use that the embodiment of the present invention 2 is prepared in commission Chongqing instrument function material tests institute
Welding rod, the overlay performance after welding bainitic steel track switch are detected, and testing result is that the embodiment of the present invention 2 is prepared into
Deposition composition of layer after the bainitic steel track switch soldering electricity consumption welding rod welding arrived are as follows:
The P of the S of the Si of the Mn of the C of 0.13wt%, 1.78wt%, 0.35wt%, 0.006wt%, 0.015wt%,
The Nb of the Cu of the V of the Mo of the Cr of 1.78wt%, 0.54wt%, 0.13wt%, 0.028wt%, 0.004wt%, 0.009wt%'s
The Sn of the Sb of the Al of the As of the B of Ti, 0.0004wt%, 0.011wt%, 0.0004wt%, 0.0005wt%, 0.0039wt%,
The Co of the W of 0.0053wt%, 0.0061wt%；Surplus is Fe.
The hardness of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared
It (HBW) is 420,423,425.
The surrender of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared is strong
Spend (Rp0.2) it is 1195MPa.
The tension of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared is strong
Spend (Rm) it is 1300MPa.
Having no progeny for overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared is stretched
Long rate (A) is 9%.
The section of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared is received
Shrinkage (Z) is 20%.
- 40 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared
Impact property (- 40 DEG C of KV2) it is 25J, 29J, 29J
20 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared
Impact property (20 DEG C of KV2) it is 49J, 47J, 48J.
The X-ray of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 2 is prepared
Series is 1 grade.
Bainitic steel its chemical component of track switch soldering welding rod and mechanical property that the embodiment of the present invention 2 is prepared are equal
Meet requirement of portion's mark to bainitic steel track switch soldering all technical.
Embodiment 3
Compositions of surfacing metal includes: marble 51kg, fluorite 27kg, titanium dioxide 3kg, manganese metal 6.8kg, crome metal 3.7kg, gold
Red stone 2.6kg, molybdenum-iron 3.7kg, sodium carboxymethylcellulose 0.2kg, soda ash 0.6kg, vanadium iron 1.3kg, ferrosilicon 11kg and graphite
0.57kg。
The potassium-sodium water glass 8.5kg that concentration is 43 ° is added in the powder of ingredient each in above-mentioned coating after mixing to mix
Uniformly, the mixture of 50kg after mixing is taken, the core wire (specification is Φ 4.0) of plodder package 100kg is sent into, by 85
DEG C low temperature is baked 4.2 hours and is then baked 1.6 hours in 385 DEG C of high temperature, obtains bainitic steel track switch soldering welding rod.
The bainitic steel track switch soldering use that the embodiment of the present invention 3 is prepared in commission Chongqing instrument function material tests institute
Welding rod, the overlay performance after welding bainitic steel track switch are detected, and testing result is that the embodiment of the present invention 3 is prepared into
Deposition composition of layer after the bainitic steel track switch soldering electricity consumption welding rod welding arrived are as follows:
The P of the S of the Si of the Mn of the C of 0.13wt%, 1.78wt%, 0.35wt%, 0.006wt%, 0.015wt%,
The Nb of the Cu of the V of the Mo of the Cr of 1.78wt%, 0.54wt%, 0.13wt%, 0.029wt%, 0.005wt%, 0.008wt%'s
The Sn of the Sb of the Al of the As of the B of Ti, 0.0003wt%, 0.012wt%, 0.0005wt%, 0.0004wt%, 0.0038wt%,
The Co of the W of 0.0054wt%, 0.0062wt%；Surplus is Fe.
The hardness of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared
It (HBW) is 418,420,419.
The surrender of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared is strong
Spend (Rp0.2) it is 1190MPa.
The tension of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared is strong
Spend (Rm) it is 1295MPa.
Having no progeny for overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared is stretched
Long rate (A) is 9%.
The section of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared is received
Shrinkage (Z) is 21%
- 40 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared
Impact property (- 40 DEG C of KV2) it is 27J, 29J, 30J.
20 DEG C of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared
Impact property (20 DEG C of KV2) it is 50J, 49J, 51J.
The X-ray of overlay after the bainitic steel track switch soldering electricity consumption welding rod welding that the embodiment of the present invention 3 is prepared
Series is 1 grade.
Bainitic steel its chemical component of track switch soldering welding rod and mechanical property that the embodiment of the present invention 3 is prepared are equal
Meet requirement of portion's mark to bainitic steel track switch soldering all technical.
As seen from the above embodiment, the present invention provides a kind of bainitic steel track switch soldering welding rods, comprising: core wire；
The coating being coated on outside the core wire；The coating includes: marble；Fluorite；Titanium dioxide；Manganese metal；Crome metal；Golden red
Stone；Molybdenum-iron；Sodium carboxymethylcellulose；Soda ash；Vanadium iron；Nickel powder；Ferrosilicon；Graphite；Iron powder.The present invention uses the medicine of special composition
Skin is reasonably prepared especially by the dosage to ingredient each in coating, is particularly suitable for this welding rod to bayesian
Body steel track switch carries out soldering, and arc stability when soldering splashes few, takes off slag and is easy, appearance of weld is good, the region tension after soldering
Intensity, yield strength, extensibility, ballistic work performance are higher.
What has been described above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of bainitic steel track switch soldering welding rod, comprising:
Core wire；
The coating being coated on outside the core wire；
The coating is in parts by weight, comprising:
42~63 parts of marble；
21~32 parts of fluorite；
1~6 part of titanium dioxide；
3~10 parts of manganese metal；
2~8 parts of crome metal；
2~8 parts of rutile；
2~6 parts of molybdenum-iron；
0.2~0.7 part of sodium carboxymethylcellulose；
0.5~1 part of soda ash；
0.8~2 part of vanadium iron；
7~15 parts of ferrosilicon；
1~3 part of nickel powder；
0.2~0.8 part of graphite.
2. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the core wire at subpackage
It includes:
The C of < 0.1wt%；
The Mn of 0.30~0.55wt%；
The Si of≤0.04wt%；
The Cr of≤0.20wt%；
The Ni of≤0.30wt%；
The S of≤0.03wt%；
The P of≤0.03wt%；
The Fe of 98.76~99.01wt%.
3. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the marmorean weight
Number is 50~55 parts.
4. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the parts by weight of the fluorite
Number is 25~30 parts.
5. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the weight of the manganese metal
Number is 5~8 parts.
6. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the parts by weight of the molybdenum-iron
Number is 3~5 parts.
7. bainitic steel track switch soldering welding rod according to claim 1, which is characterized in that the weight of the coating is
The 45~55% of core wire weight.
8. a kind of preparation method of bainitic steel track switch soldering welding rod described in claim 1, comprising:
Each ingredient of coating is wrapped using binder and is baked after on core wire, bainitic steel track switch welding rod is obtained；
The ingredient of the coating is in parts by weight, comprising:
42~63 parts of marble；
21~32 parts of fluorite；
1~6 part of titanium dioxide；
3~10 parts of manganese metal；
2~8 parts of crome metal；
2~8 parts of rutile；
2~6 parts of molybdenum-iron；
0.2~0.7 part of sodium carboxymethylcellulose；
0.5~1 part of soda ash；
0.8~2 part of vanadium iron；
7~15 parts of ferrosilicon；
1~3 part of nickel powder；
0.2~0.8 part of graphite.
9. according to the method described in claim 8, it is characterized in that, the binder is waterglass.
10. according to the method described in claim 8, it is characterized in that, the first progress low-temperature bake that is roasted to carries out high temperature again
Roasting；
The temperature of the low-temperature bake is 70~90 DEG C；
The temperature of the high-temperature roasting is 370~390 DEG C.
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| CN1062684A (en) * | 1990-12-29 | 1992-07-15 | 上海锅炉厂 | The welding rod and the welding procedure thereof of heat-resisting steel no-preheating welding usefulness |
| US6177205B1 (en) * | 1996-05-24 | 2001-01-23 | Bwg Butzbacher Weichenbau Gmbh | Process for producing a permanent way component and such a component |
| CN101181768A (en) * | 2007-12-14 | 2008-05-21 | 国网北京电力建设研究院 | Ultra-low hydrogen basic electrode for P92 steel welding |
| CN101362258A (en) * | 2008-09-25 | 2009-02-11 | 哈尔滨工业大学 | Novel electric welding rod |
| CN107931888A (en) * | 2017-11-27 | 2018-04-20 | 四川大西洋焊接材料股份有限公司 | Hydroelectric project high tensile steel electrode and preparation method thereof |
-
2018
- 2018-11-19 CN CN201811375164.7A patent/CN109262164A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062684A (en) * | 1990-12-29 | 1992-07-15 | 上海锅炉厂 | The welding rod and the welding procedure thereof of heat-resisting steel no-preheating welding usefulness |
| US6177205B1 (en) * | 1996-05-24 | 2001-01-23 | Bwg Butzbacher Weichenbau Gmbh | Process for producing a permanent way component and such a component |
| CN101181768A (en) * | 2007-12-14 | 2008-05-21 | 国网北京电力建设研究院 | Ultra-low hydrogen basic electrode for P92 steel welding |
| CN101362258A (en) * | 2008-09-25 | 2009-02-11 | 哈尔滨工业大学 | Novel electric welding rod |
| CN107931888A (en) * | 2017-11-27 | 2018-04-20 | 四川大西洋焊接材料股份有限公司 | Hydroelectric project high tensile steel electrode and preparation method thereof |
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