CN106514040A - Gas-shielded stainless steel flux-cored wire for boiler burner, and production process thereof - Google Patents
Gas-shielded stainless steel flux-cored wire for boiler burner, and production process thereof Download PDFInfo
- Publication number
- CN106514040A CN106514040A CN201610962086.5A CN201610962086A CN106514040A CN 106514040 A CN106514040 A CN 106514040A CN 201610962086 A CN201610962086 A CN 201610962086A CN 106514040 A CN106514040 A CN 106514040A
- Authority
- CN
- China
- Prior art keywords
- parts
- flux
- cored wire
- sio
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—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
- B23K35/22—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
- B23K35/362—Selection of compositions of fluxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
Abstract
The invention discloses a gas-shielded stainless steel flux-cored wire for a boiler burner, and a production process thereof. The flux-cored wire is composed of an extra-low-carbon stainless steel strip and a flux core wrapped in the steel strip. The production process comprises the following steps: wrapping the flux core in the extra-low-carbon stainless steel strip through a precise forming process, and then preparing the flux-cored wire through finish broaching diameter reduction, surface treatment and close-packed precision winding. The gas-shielded stainless steel flux-cored wire for the boiler burner, which is developed by the invention, is capable of welding S30815 austenitic stainless steel castings and forgings, and a welding joint thereof is high in creep deformation-resistant capacity and creep rupture strength, great in high-temperature corrosion-resistant capacity and erosion corrosion-resistant capacity in most of gas mediums, and high in yield strength and tensile strength and enough in machinability at a high temperature. The gas-shielded stainless steel flux-cored wire for the boiler burner is high in deposition efficiency, more beautiful compared with solid welding wire forming, easier in welding condition setting, and easy for semiautomatic and automatic welding.
Description
Technical field
The invention belongs to welding technology field, more particularly, is related to one kind and meets GB/T17853 standards and ASME standards
What middle E308 was required is mainly used in welding S30815 austenitic stainless cast steel parts and forging (as boiler-burner, continuous cast set
Standby, rolling mill, heat-treatment furnace, cement manufacture plant etc.) gas shielded stainless flux-cored wire and its production technology.
Background technology
The overall structure of boiler includes boiler body, auxiliary equipment and safety device two large divisions, and burner is used as one
It is to constitute one of critical piece of boiler body to plant the higher electromechanical integration equipment of automaticity.Thermal power generation is China master
The generation mode wanted, three big main process equipments one of of the station boiler as firepower power station, along with the development of China's Thermal Power Generation Industry
And develop.
For a long time, the welding material for boiler-burner mainly adopts rustless steel stick electrode and stainless steel solid to weld
Silk.It is well known that the deposition efficiency of welding rod is low, it is impossible to carry out automatization, semi-automatic welding；The molding of solid welding wire welding bead compared with
Difference, stability are general and postwelding oxide is more, and electric current, voltage adaptation scope are little；Many defect restrictions of above two wlding
Boiler-burner weld job is toward the development on higher quality, higher efficiency road.
Therefore, develop a kind of higher than welding rod deposition efficiency, more more attractive than solid welding wire molding, welding condition setting to be easier
And be easy to carry out the stainless flux-cored wire of semi-automatic and automatic welding there is high practicality and strategic value.
The content of the invention
In order to solve problems of the prior art, it is an object of the invention to provide one kind can substitute it is corresponding stainless
The gas shielded stainless flux-cored wire and its production technology for boiler-burner of steel electrode and solid welding wire.
An aspect of of the present present invention provides the gas shielded stainless flux-cored wire for boiler-burner, the flux-cored wire
It is made up of super-low carbon stainless steel steel band and the medicated core being wrapped in the steel band, wherein, by percentage to the quality, the medicated core
Weight accounts for 22～28wt% of the flux-cored wire gross weight, and the super-low carbon stainless steel steel band includes following component：C≤
1.30～1.60wt% of 0.02wt%, Mn, Si≤0.40wt%, 18.0～19.5wt% of Cr, 8.0～10.5wt% of Ni；Cu
The Fe of≤0.20wt%, S≤0.01wt%, P≤0.025wt%, N≤0.050wt%, Co≤0.20wt% and surplus and not
Evitable impurity；
In parts by weight, the medicated core includes following components：5.0～8.5 parts of natural rutile, quartz sand 0.2～2.0
Part, 0.1～0.4 part of zircon sand, 0.2～1.0 part of albite, 0.2～1.0 part of sodium fluoride, 0.1～0.5 part of magnesium powder, nitrided ferro-chromium
0.75～2.5 part, 2.0～4.0 parts of ferrosilicon of spraying, 0.2～0.5 part of electrolytic manganese, 3.5～7.0 parts of crome metal and nikel powder 1.0～
3.5 part.
It is used for one embodiment of the gas shielded stainless flux-cored wire of boiler-burner according to the present invention, with quality percentage
Than meter, the TiO in the natural rutile2>=95.0wt%；SiO in quartz sand2>=99.0wt%；ZrO in zircon sand2
Content is 57～63wt% and SiO2≤ 35wt%；Na in albite2O >=8wt%, SiO2>=63wt% and Al2O3≥
16wt%；NaF >=98wt% in sodium fluoride；Mg >=98.5wt% in magnesium powder；Cr >=60wt% and N in nitrided ferro-chromium >=
5wt%；Si contents in spraying ferrosilicon are 42～47wt%；Mn >=99.5wt% in electrolytic manganese；Cr in crome metal >=
98wt%；Ni >=99.5wt% in nikel powder.
It is used for one embodiment of the gas shielded stainless flux-cored wire of boiler-burner according to the present invention, with weight portion
Meter, the medicated core include following components：
Containing TiO28.5 parts of the natural rutile of 96.52wt%；
Containing SiO20.4 part of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.1 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O30.2 part of the albite of 16.8wt%；
0.45 part of sodium fluoride containing NaF 99.6wt%；
0.45 part of magnesium powder containing Mg 99.3wt%；
2.3 parts of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
2.0 parts of spraying ferrosilicon containing Si 45.6wt%；
0.45 part of electrolytic manganese containing Mn 99.7wt%；
7.0 parts of crome metal containing Cr 98.9wt%；
1.0 parts of nikel powder containing Ni 99.7wt%.
It is used for one embodiment of the gas shielded stainless flux-cored wire of boiler-burner according to the present invention, with weight portion
Meter, the medicated core include following components：
Containing TiO25.0 parts of the natural rutile of 96.52wt%；
Containing SiO22.0 parts of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.3 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O30.8 part of the albite of 16.8wt%；
0.85 part of sodium fluoride containing NaF 99.6wt%；
0.15 part of magnesium powder containing Mg 99.3wt%；
0.75 part of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
3.8 parts of spraying ferrosilicon containing Si 45.6wt%；
0.2 part of electrolytic manganese containing Mn 99.7wt%；
5.5 parts of crome metal containing Cr 98.9wt%；
3.5 parts of nikel powder containing Ni 99.7wt%.
It is used for one embodiment of the gas shielded stainless flux-cored wire of boiler-burner according to the present invention, with weight portion
Meter, the medicated core include following components：
Containing TiO26.5 parts of the natural rutile of 96.52wt%；
Containing SiO21.5 parts of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.4 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O31.0 parts of the albite of 16.8wt%；
0.6 part of sodium fluoride containing NaF 99.6wt%；
0.2 part of magnesium powder containing Mg 99.3wt%；
1.5 parts of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
3.0 parts of spraying ferrosilicon containing Si 45.6wt%；
0.3 part of electrolytic manganese containing Mn 99.7wt%；
6.0 parts of crome metal containing Cr 98.9wt%；
3.0 parts of nikel powder containing Ni 99.7wt%.
It is used for one embodiment of the gas shielded stainless flux-cored wire of boiler-burner according to the present invention, with quality percentage
Than meter, the welding deposited metal of the flux-cored wire includes following component：0.010～0.070wt% of C, Mn 0.30～
1.40～2.00wt% of 0.80wt%, Si, S≤0.020wt%, P≤0.030wt%, 20.00～22.00wt% of Cr, Ni
9.00～11.00wt%, Mo≤0.75wt%, 0.08～0.18wt% of N, 0.01～0.05wt% of Re, V≤0.08%, Cu
≤ 0.05%, the Fe and inevitable impurity of Al≤0.05% and surplus；The welding deposited metal X at normal temperatures is penetrated
Line flaw detection grade is I levels, and tensile strength Rm >=664Mpa, elongation percentage A >=36%, longitudinal direction are just curved qualified.
Another aspect provides the production of the above-mentioned gas shielded stainless flux-cored wire for boiler-burner
Technique, is wrapped in the medicated core in the super-low carbon stainless steel steel band, then by finish draw tube reducing, table using precise forming technique
Face is processed and solid matter layer turns to the flux-cored wire.
According to one embodiment of the production technology of the gas shielded stainless flux-cored wire for boiler-burner, will
The each component of the medicated core under the conditions of 200～250 DEG C is incubated 2～4 hours and precise forming technique is adopted after stirring
The medicated core is wrapped in the super-low carbon stainless steel steel band, by the accurate drawing tube reducings of pure CRD to the gage of wire for specifying,
Carry out online annealing again to eliminate processing hardening and be cleaned process after welding wire surface greasy dirt is carbonized, it is finally equal in welding wire surface
The flux-cored wire is turned to through solid matter layer after one layer of lubricant of even coating.
The gas shielded stainless flux-cored wire for boiler-burner of present invention research and development can weld S30815 austenites
Stainless cast steel part and forging (such as boiler-burner, continuous casting equipment, rolling mill, heat-treatment furnace, cement manufacture plant etc.), its
Weld seam has higher creep resistant type ability and creep rupture strength, has good resistance to high temperature corrosion in majority of gas medium
Ability and the brush of resistance to weighing apparatus corrosive power, with higher yield strength, tensile strength and enough machinabilities during high temperature, melt
Deposited efficiency high, welding condition more more attractive than solid welding wire molding setting are easier and are easy to carry out semi-automatic and automatic welding.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent or with similar purpose by other
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
First the gas shielded stainless flux-cored wire for boiler-burner of the present invention is described in detail below.
Exemplary embodiment of the invention, the gas shielded stainless flux-cored wire for boiler-burner is by surpassing
Low carbon stainless steel steel band and the medicated core composition being wrapped in the steel band, wherein, by percentage to the quality, the weight of medicated core accounts for medicine
22～28wt% of core welding wire gross weight.Specifically, super-low carbon stainless steel steel band includes following component：C≤0.02wt%, Mn
1.30～1.60wt%, Si≤0.40wt%, 18.0～19.5wt% of Cr, 8.0～10.5wt% of Ni；Cu≤0.20wt%, S
The Fe of≤0.01wt%, P≤0.025wt%, N≤0.050wt%, Co≤0.20wt% and surplus and inevitably miscellaneous
Matter.
Also, in parts by weight, medicated core includes following components：5.0～8.5 parts of natural rutile, quartz sand 0.2～2.0
Part, 0.1～0.4 part of zircon sand, 0.2～1.0 part of albite, 0.2～1.0 part of sodium fluoride, 0.1～0.5 part of magnesium powder, nitrided ferro-chromium
0.75～2.5 part, 2.0～4.0 parts of ferrosilicon of spraying, 0.2～0.5 part of electrolytic manganese, 3.5～7.0 parts of crome metal and nikel powder 1.0～
3.5 part.Said components can be cooperatively formed with super-low carbon stainless steel steel band with the medicated core of proportioning and meet S30815 austenite stainless
Steel casting and forging (such as boiler-burner, continuous casting equipment, rolling mill, heat-treatment furnace, cement manufacture plant etc.) welding will
The stainless flux-cored wire asked.The welding wire has been filled up for welding the blank of the flux-cored wire category of S30815 steel, and can be complete
The beautiful Manual electric welding bar and solid welding wire for substituting the type is used for the all-position welding of S30815 steel.
Specifically, in medicated core, electric arc slag making are mainly stablized in the effect of golden red stone powder, can adjust the fusing point of slag, glue
Degree, surface tension and mobility, improve appearance of weld, reduce and splash.The golden red stone powder butt welding for adding in the present invention be seamed into shape,
Arc stability plays a crucial role.The Main Function of quartz sand be slag making, the adjustment acid-base value of slag, viscosity, surface tension and
Mobility.Zircon sand forms zirconium oxide under electric arc heat effect, zirconium oxide can crystal grain thinning, prevent from forming intergranular oxidation thing.
Albite is mainly taken on slag making, improves the effect of arc stability.The Main Function of sodium fluoride is dehydrogenation and improves the work of welding wire
Skill performance.Magnesium powder is easy to react with the oxygen in weld seam and acts primarily as precedent desoxydation and stablize arcing.Nitrided ferro-chromium master
Weld seam tensile strength to be improved to transition nitrogen in weld seam.Spraying ferrosilicon plays reduction and takes off to transition element silicon in weld seam
Oxygen is acted on, and can improve elastic limit, yield point and the tensile strength of weld seam.Electrolytic manganese is main deoxidizer in medicated core and de-
Sulfur agent, and the quenching property of weld seam can be improved, improve hot-working character.The Main Function of crome metal is the transition chromium in weld seam
Improve the non-oxidizability and decay resistance of weld seam.The Main Function of nikel powder is the transition nickel element in weld seam, improves weld seam
Plasticity and toughness, keep the antirust and heat resistance under high temperature.
Require and more excellent in order to the welding performance for ensureing welding rod meets, in coating, each component need to meet following requirement：With matter
Amount percentages, the TiO in natural rutile2>=95.0wt%；SiO in quartz sand2>=99.0wt%；In zircon sand
ZrO2Content is 57～63wt% and SiO2≤ 35wt%；Na in albite2O >=8wt%, SiO2>=63wt% and Al2O3≥
16wt%；NaF >=98wt% in sodium fluoride；Mg >=98.5wt% in magnesium powder；Cr >=60wt% and N in nitrided ferro-chromium >=
5wt%；Si contents in spraying ferrosilicon are 42～47wt%；Mn >=99.5wt% in electrolytic manganese；Cr in crome metal >=
98wt%；Ni >=99.5wt% in nikel powder.
According to a preferred embodiment of the present invention, in parts by weight, the medicated core that the present invention is adopted includes following components：Contain
TiO28.5 parts of the natural rutile of 96.52wt%；Containing SiO20.4 part of the quartz sand of 99.4wt%；Containing ZrO261.1wt%,
SiO20.1 part of the zircon sand of 33.4wt%；Containing Na2O 11.2wt%, SiO265.1wt%, Al2O3The albite of 16.8wt%
0.2 part；0.45 part of sodium fluoride containing NaF 99.6wt%；0.45 part of magnesium powder containing Mg 99.3wt%；66.2wt% containing Cr, N
2.3 parts of the nitrided ferro-chromium of 7.7wt%；2.0 parts of spraying ferrosilicon containing Si 45.6wt%；Electrolytic manganese 0.45 containing Mn 99.7wt%
Part；7.0 parts of crome metal containing Cr 98.9wt%；1.0 parts of nikel powder containing Ni 99.7wt%.
Another preferred embodiment of the invention, in parts by weight, the medicated core includes following components：Containing TiO2
5.0 parts of the natural rutile of 96.52wt%；Containing SiO22.0 parts of the quartz sand of 99.4wt%；Containing ZrO261.1wt%, SiO2
0.3 part of the zircon sand of 33.4wt%；Containing Na2O 11.2wt%, SiO265.1wt%, Al2O3The albite 0.8 of 16.8wt%
Part；0.85 part of sodium fluoride containing NaF 99.6wt%；0.15 part of magnesium powder containing Mg 99.3wt%；66.2wt% containing Cr, N
0.75 part of the nitrided ferro-chromium of 7.7wt%；3.8 parts of spraying ferrosilicon containing Si 45.6wt%；Electrolytic manganese 0.2 containing Mn 99.7wt%
Part；5.5 parts of crome metal containing Cr 98.9wt%；3.5 parts of nikel powder containing Ni 99.7wt%.
Another preferred embodiment of the invention, in parts by weight, the medicated core includes following components：Containing TiO2
6.5 parts of the natural rutile of 96.52wt%；Containing SiO21.5 parts of the quartz sand of 99.4wt%；Containing ZrO261.1wt%, SiO2
0.4 part of the zircon sand of 33.4wt%；Containing Na2O 11.2wt%, SiO265.1wt%, Al2O3The albite 1.0 of 16.8wt%
Part；0.6 part of sodium fluoride containing NaF 99.6wt%；0.2 part of magnesium powder containing Mg 99.3wt%；66.2wt% containing Cr, N
1.5 parts of the nitrided ferro-chromium of 7.7wt%；3.0 parts of spraying ferrosilicon containing Si 45.6wt%；Electrolytic manganese 0.3 containing Mn 99.7wt%
Part；6.0 parts of crome metal containing Cr 98.9wt%；3.0 parts of nikel powder containing Ni 99.7wt%.
When being welded for the gas shielded stainless flux-cored wire of boiler-burner using the present invention, with mass percent
Meter, the welding deposited metal of the flux-cored wire include following component：0.010～0.070wt% of C, Mn 0.30～
1.40～2.00wt% of 0.80wt%, Si, S≤0.020wt%, P≤0.030wt%, 20.00～22.00wt% of Cr, Ni
9.00～11.00wt%, Mo≤0.75wt%, 0.08～0.18wt% of N, 0.01～0.05wt% of Re, V≤0.08%, Cu
≤ 0.05%, the Fe and inevitable impurity of Al≤0.05% and surplus；And the welding deposited metal is at normal temperatures
X-ray inspection grade be I levels, tensile strength Rm >=664Mpa, elongation percentage A >=36%, longitudinal direction just it is curved (D=(4) a α=
(180 °) are qualified, and GB/T4334-2008E methods are inclined to without intercrystalline corrosion.
Below the present invention is illustrated for the production technology of the gas shielded stainless flux-cored wire of boiler-burner.
Medicated core is wrapped in super-low carbon stainless steel steel band using precise forming technique by exemplary embodiment of the invention
In, then flux-cored wire is turned to by finish draw tube reducing, surface treatment and solid matter layer.Wherein, before aforesaid operations are carried out, need
First each component of medicated core is homogenously mixed together to form medicated core according to proportioning, and needs preparation in advance to meet mentioned component and wanted
The super-low carbon stainless steel steel band asked.
Specifically, above-mentioned medicated core is incubated into 2～4 hours and after stirring using precision under the conditions of 200～250 DEG C
Moulding process is wrapped in medicated core in super-low carbon stainless steel steel band, by the accurate drawing tube reducings of pure CRD to the gage of wire for specifying,
Carry out online annealing again to eliminate processing hardening and be cleaned process after welding wire surface greasy dirt is carbonized, it is subsequently equal in welding wire surface
One layer of lubricant of even coating eventually passes solid matter layer and turns to flux-cored wire to ensure the Wire Performance of welding wire.
It should be understood that the above-mentioned embodiment and following examples of present invention detailed description are merely to illustrate the present invention rather than limit
The scope of the present invention processed, some nonessential improvement and tune that those skilled in the art's the above of the invention is made
It is whole to belong to protection scope of the present invention.
With reference to specific embodiment, the invention will be further described.
Embodiment 1：
The super-low carbon stainless steel steel band of 77.15kg is chosen, by percentage to the quality, the super-low carbon stainless steel steel band is included
Following component (wt%)：C 0.0097、Mn 1.36、Si 0.30、Cr 18.56、Ni 10.43、Cu 0.004、S 0.0004、P
0.012nd, N 0.021, the Fe of Co 0.011 and surplus and inevitable impurity.
The medicated core of 22.85kg is chosen, the weight of each component is as follows in medicated core：Containing TiO2The natural rutile of 96.52wt%
8.5kg, containing SiO2The quartz sand 0.4kg of 99.4wt%；Containing ZrO261.1wt%, SiO2The zircon sand 0.1kg of 33.4wt%,
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O3The albite 0.2kg of 16.8wt%, the fluorination containing NaF 99.6wt%
Sodium 0.45kg, the magnesium powder 0.45kg containing Mg 99.3wt%, 66.2wt% containing Cr, the nitrided ferro-chromium 2.3kg of N 7.7wt%, contain
The spraying ferrosilicon 2.0kg of Si 45.6wt%, the electrolytic manganese 0.45kg containing Mn 99.7wt%, the crome metal containing Cr 98.9wt%
7.0kg, the nikel powder 1.0kg containing Ni 99.7wt%.
The each component mix homogeneously of above-mentioned medicated core is obtained into medicated core according to proportioning, medicated core is wrapped in by precise forming
State in super-low carbon stainless steel steel band, then 1# flux-cored wires are turned to through finish draw tube reducing, surface treatment, solid matter layer.
Above-mentioned 1# flux-cored wires are carried out into qualification of welding procedure and deposited metal soldering test according to GB/T17853-1999.
Qualification of welding procedure result is as follows：The welding arc stablility of 1# flux-cored wires, weld size rule shaping are attractive in appearance, winged
Splash less, de- slag is good, deposition efficiency is up to 91.33%.The composition of deposited metal is：C 0.021wt%, Mn 0.98wt%, Si
1.65wt%, S 0.0037wt%, P 0.013wt%, Cr 21.35wt%, Ni 8.36wt%, Mo 0.028wt%, N
The Fe and inevitable impurity of 0.10wt%, Re 0.011wt% and surplus.The mechanical property of deposited metal under room temperature：It is anti-
Tensile strength Rm=717Mpa, elongation percentage A=36%, X-ray are I grade, and longitudinal direction just curved (D=4a α=180 °) is qualified.
Embodiment 2：
The present embodiment in addition to the varying in weight of each component in medicated core, remaining condition and manufacture process and 1 all same of embodiment,
Obtain 2# flux-cored wires.
Wherein, the present embodiment chooses super-low carbon stainless steel steel band 77.15kg, chooses 22.85kg medicated core, each component in medicated core
Weight it is as follows：Containing TiO2The natural rutile 5.0kg of 96.52wt%, containing SiO2The quartz sand 2.0kg of 99.4wt%, contains
ZrO2The zircon sand 0.3kg of 61.1wt%, SiO2 33.4wt%, containing Na2O 11.2wt%, SiO265.1wt%, Al2O3
The albite 0.8kg of 16.8wt%, the sodium fluoride 0.85kg containing NaF 99.6wt%, the magnesium powder 0.15kg containing Mg 99.3wt%,
The nitrided ferro-chromium 0.75kg of 66.2wt% containing Cr, N 7.7wt%, the spraying ferrosilicon 3.8kg containing Si 45.6wt%, containing Mn
The electrolytic manganese 0.2kg of 99.7wt%, the crome metal 5.5kg containing Cr 98.9wt%, the nikel powder 3.5kg containing Ni 99.7wt%.
Above-mentioned 2# flux-cored wires are carried out into qualification of welding procedure and deposited metal soldering test according to GB/T17853-1999.
Qualification of welding procedure result is as follows：The welding arc stablility of 2# flux-cored wires, weld size rule shaping are attractive in appearance, winged
Splash less, de- slag is good, deposition efficiency is up to 90.87%.The composition of deposited metal is：C 0.021wt%, Mn 0.98wt%, Si
1.65wt%, S 0.0037wt%, P 0.013wt%, Cr 19.77wt%, Ni 9.27wt%, Mo 0.022wt%, N
The Fe and inevitable impurity of 0.13wt%, Re 0.013wt% and surplus.The mechanical property of deposited metal under room temperature：It is anti-
Tensile strength Rm=664Mpa, elongation percentage A=42%, X-ray are I grade, and longitudinal direction just curved (D=4a α=180 °) is qualified.
Embodiment 3：
The present embodiment in addition to the varying in weight of each component in medicated core, remaining condition and manufacture process and 1 all same of embodiment,
Obtain 3# flux-cored wires.
Wherein, the present embodiment chooses super-low carbon stainless steel steel band 76kg, chooses 24kg medicated core, the weight of each component in medicated core
It is as follows：Containing TiO2The natural rutile 6.5kg of 96.52wt%, containing SiO2The quartz sand 1.5kg of 99.4wt%, containing ZrO2
61.1wt%, SiO2The zircon sand 0.4kg of 33.4wt%, containing Na2O 11.2wt%, SiO265.1wt%, Al2O3
The albite 1.0kg of 16.8wt%, the sodium fluoride 0.6kg containing NaF 99.6wt%, the magnesium powder 0.2kg containing Mg 99.3wt%, contain
The nitrided ferro-chromium 1.5kg of Cr 66.2wt%, N 7.7wt%, the spraying ferrosilicon 3.0kg containing Si 45.6wt%, containing Mn
The electrolytic manganese 0.3kg of 99.7wt%, the crome metal 6.0kg containing Cr 98.9wt%, the nikel powder 3.0kg containing Ni 99.7wt%.
Above-mentioned 3# flux-cored wires are carried out into qualification of welding procedure and deposited metal soldering test according to GB/T17853-1999.
Qualification of welding procedure result is as follows：The welding arc stablility of 3# flux-cored wires, weld size rule shaping are attractive in appearance, winged
Splash less, de- slag is good, deposition efficiency is up to 91.51%.The composition of deposited metal is：C 0.016wt%, Mn 0.79wt%, Si
1.77wt%, S 0.0027wt%, P 0.013wt%, Cr 21.84wt%, Ni 10.73wt%, Mo 0.016wt%, N
The Fe and inevitable impurity of 0.12wt%, Re 0.015wt% and surplus.The mechanical property of deposited metal under room temperature：It is anti-
Tensile strength Rm=677Mpa, elongation percentage A=39%, X-ray are I grade, and longitudinal direction just curved (D=4a α=180 °) is qualified.
In sum, the gas shielded stainless flux-cored wire for boiler-burner of present invention research and development can be welded
S30815 austenitic stainless cast steel parts and forging are (such as boiler-burner, continuous casting equipment, rolling mill, heat-treatment furnace, cement life
Product equipment etc.), its weld seam has higher creep resistant type ability and creep rupture strength, has fine in majority of gas medium
Resistance to high temperature corrosion ability and the brush of resistance to weighing apparatus corrosive power, with higher yield strength, tensile strength and enough during high temperature
Machinability, deposition efficiency is high, more more attractive than solid welding wire molding, welding condition setting is easier and is easy to carry out semi-automatic
And automatic welding.
The invention is not limited in aforesaid specific embodiment.The present invention is expanded to and any is disclosed in this manual
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (8)
1. a kind of gas shielded stainless flux-cored wire for boiler-burner, it is characterised in that the flux-cored wire is by ultralow
Carbon stainless steel steel band and the medicated core composition being wrapped in the steel band, wherein, by percentage to the quality, the weight of the medicated core is accounted for
22～28wt% of the flux-cored wire gross weight, the super-low carbon stainless steel steel band include following component：C≤0.02wt%,
1.30～1.60wt% of Mn, Si≤0.40wt%, 18.0～19.5wt% of Cr, 8.0～10.5wt% of Ni；Cu≤
The Fe of 0.20wt%, S≤0.01wt%, P≤0.025wt%, N≤0.050wt%, Co≤0.20wt% and surplus and can not
The impurity for avoiding；
In parts by weight, the medicated core includes following components：5.0～8.5 parts of natural rutile, 0.2～2.0 part of quartz sand, zirconium
0.1～0.4 part of sand, 0.2～1.0 part of albite, 0.2～1.0 part of sodium fluoride, 0.1～0.5 part of magnesium powder, nitrided ferro-chromium 0.75
1.0～3.5 parts of～2.5 parts, 2.0～4.0 parts of ferrosilicon of spraying, 0.2～0.5 part of electrolytic manganese, 3.5～7.0 parts of crome metal and nikel powder.
2. the gas shielded stainless flux-cored wire of boiler-burner is used for according to claim 1, it is characterised in that with quality
Percentages, the TiO in the natural rutile2>=95.0wt%；SiO in quartz sand2>=99.0wt%；In zircon sand
ZrO2Content is 57～63wt% and SiO2≤ 35wt%；Na in albite2O >=8wt%, SiO2>=63wt% and Al2O3≥
16wt%；NaF >=98wt% in sodium fluoride；Mg >=98.5wt% in magnesium powder；Cr >=60wt% and N in nitrided ferro-chromium >=
5wt%；Si contents in spraying ferrosilicon are 42～47wt%；Mn >=99.5wt% in electrolytic manganese；Cr in crome metal >=
98wt%；Ni >=99.5wt% in nikel powder.
3. the gas shielded stainless flux-cored wire of boiler-burner is used for according to claim 2, it is characterised in that with weight
Part meter, the medicated core include following components：
Containing TiO28.5 parts of the natural rutile of 96.52wt%；
Containing SiO20.4 part of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.1 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O30.2 part of the albite of 16.8wt%；
0.45 part of sodium fluoride containing NaF 99.6wt%；
0.45 part of magnesium powder containing Mg 99.3wt%；
2.3 parts of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
2.0 parts of spraying ferrosilicon containing Si 45.6wt%；
0.45 part of electrolytic manganese containing Mn 99.7wt%；
7.0 parts of crome metal containing Cr 98.9wt%；
1.0 parts of nikel powder containing Ni 99.7wt%.
4. the gas shielded stainless flux-cored wire of boiler-burner is used for according to claim 2, it is characterised in that with weight
Part meter, the medicated core include following components：
Containing TiO25.0 parts of the natural rutile of 96.52wt%；
Containing SiO22.0 parts of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.3 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O30.8 part of the albite of 16.8wt%；
0.85 part of sodium fluoride containing NaF 99.6wt%；
0.15 part of magnesium powder containing Mg 99.3wt%；
0.75 part of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
3.8 parts of spraying ferrosilicon containing Si 45.6wt%；
0.2 part of electrolytic manganese containing Mn 99.7wt%；
5.5 parts of crome metal containing Cr 98.9wt%；
3.5 parts of nikel powder containing Ni 99.7wt%.
5. the gas shielded stainless flux-cored wire of boiler-burner is used for according to claim 2, it is characterised in that with weight
Part meter, the medicated core include following components：
Containing TiO26.5 parts of the natural rutile of 96.52wt%；
Containing SiO21.5 parts of the quartz sand of 99.4wt%；
Containing ZrO261.1wt%, SiO20.4 part of the zircon sand of 33.4wt%；
Containing Na2O 11.2wt%, SiO265.1wt%, Al2O31.0 parts of the albite of 16.8wt%；
0.6 part of sodium fluoride containing NaF 99.6wt%；
0.2 part of magnesium powder containing Mg 99.3wt%；
1.5 parts of the nitrided ferro-chromium of 66.2wt% containing Cr, N 7.7wt%；
3.0 parts of spraying ferrosilicon containing Si 45.6wt%；
0.3 part of electrolytic manganese containing Mn 99.7wt%；
6.0 parts of crome metal containing Cr 98.9wt%；
3.0 parts of nikel powder containing Ni 99.7wt%.
6. the gas shielded stainless flux-cored wire of boiler-burner is used for according to claim 1, it is characterised in that with quality
Percentages, the welding deposited metal of the flux-cored wire include following component：0.010～0.070wt% of C, Mn 0.30～
1.40～2.00wt% of 0.80wt%, Si, S≤0.020wt%, P≤0.030wt%, 20.00～22.00wt% of Cr, Ni
9.00～11.00wt%, Mo≤0.75wt%, 0.08～0.18wt% of N, 0.01～0.05wt% of Re, V≤0.08%, Cu
≤ 0.05%, the Fe and inevitable impurity of Al≤0.05% and surplus；The welding deposited metal X at normal temperatures is penetrated
Line flaw detection grade is I levels, and tensile strength Rm >=664Mpa, elongation percentage A >=36%, longitudinal direction are just curved qualified.
7. the production work of the gas shielded stainless flux-cored wire of boiler-burner is used for as any one of claim 1 to 6
Skill, it is characterised in that the medicated core is wrapped in the super-low carbon stainless steel steel band, then by essence using precise forming technique
Tube reducing, surface treatment and solid matter layer is drawn to turn to the flux-cored wire.
8. the production technology of the gas shielded stainless flux-cored wire of boiler-burner, its feature are used for according to claim 7
Be each component of the medicated core is incubated into 2～4 hours under the conditions of 200～250 DEG C and after stirring using it is accurate into
Type technique is wrapped in the medicated core in the super-low carbon stainless steel steel band, by the accurate drawing tube reducings of pure CRD to the weldering for specifying
Silk diameter, then carry out online annealing elimination processing hardening and process will be cleaned after the carbonization of welding wire surface greasy dirt, finally in weldering
Silk table face turns to the flux-cored wire through solid matter layer after uniformly coating one layer of lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962086.5A CN106514040B (en) | 2016-11-04 | 2016-11-04 | A kind of gas shielded stainless flux-cored wire and its production technology for boiler-burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962086.5A CN106514040B (en) | 2016-11-04 | 2016-11-04 | A kind of gas shielded stainless flux-cored wire and its production technology for boiler-burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106514040A true CN106514040A (en) | 2017-03-22 |
| CN106514040B CN106514040B (en) | 2019-07-26 |
Family
ID=58326219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610962086.5A Active CN106514040B (en) | 2016-11-04 | 2016-11-04 | A kind of gas shielded stainless flux-cored wire and its production technology for boiler-burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106514040B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649798A (en) * | 2017-10-20 | 2018-02-02 | 西安理工大学 | 25Cr2Ni4MoV steel metal flux-cored wire and preparation method |
| CN107971657A (en) * | 2017-11-27 | 2018-05-01 | 四川大西洋焊接材料股份有限公司 | For weld SUS316L austenitic stainless steel deep cooling low temperature storage-transport vessel, equipment gas-shielded flux-cored wire |
| CN109967917A (en) * | 2019-05-17 | 2019-07-05 | 武汉铁锚焊接材料股份有限公司 | A kind of stainless flux-cored wire and preparation method thereof of resistance to boiling concentrated nitric acid corrosion |
| CN110666390A (en) * | 2019-10-25 | 2020-01-10 | 王胜心 | Stainless steel flux-cored wire without oxidation color |
| CN112388202A (en) * | 2020-12-01 | 2021-02-23 | 四川大西洋焊接材料股份有限公司 | Welding wire flux core, welding wire, preparation method of welding wire and welding method |
| CN113579551A (en) * | 2021-08-13 | 2021-11-02 | 北京工业大学 | 253MA heat-resistant stainless steel flux-cored wire and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2501144A1 (en) * | 1975-01-10 | 1976-07-15 | Vni I Pi Technologii Khim I Ne | ELECTRODE WIRE |
| CN1919526A (en) * | 2005-08-22 | 2007-02-28 | 基斯韦尔株式会社 | Methods for manufacturing flux cored wire for welding stainless steel and products thereof |
| CN103480984A (en) * | 2013-09-22 | 2014-01-01 | 北京工业大学 | 308 stainless steel flux-cored wire low in hexavalent chromium discharge |
| JP2014034051A (en) * | 2012-08-09 | 2014-02-24 | Nippon Steel & Sumikin Welding Co Ltd | Wire including flux for stainless steel welding |
| CN103737198A (en) * | 2014-01-15 | 2014-04-23 | 四川大西洋焊接材料股份有限公司 | Gas-shielded flux-cored wire for stainless steel welding |
| CN104690446A (en) * | 2015-02-12 | 2015-06-10 | 西安理工大学 | Flux-cored wire for nickel-saving 2205 duplex stainless steel and preparation method of flux-cored wire |
| CN105728989A (en) * | 2016-04-12 | 2016-07-06 | 湘潭大学 | High-toughness atmosphere corrosion resistance flux-cored solder wire and preparation method thereof |
-
2016
- 2016-11-04 CN CN201610962086.5A patent/CN106514040B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2501144A1 (en) * | 1975-01-10 | 1976-07-15 | Vni I Pi Technologii Khim I Ne | ELECTRODE WIRE |
| CN1919526A (en) * | 2005-08-22 | 2007-02-28 | 基斯韦尔株式会社 | Methods for manufacturing flux cored wire for welding stainless steel and products thereof |
| JP2014034051A (en) * | 2012-08-09 | 2014-02-24 | Nippon Steel & Sumikin Welding Co Ltd | Wire including flux for stainless steel welding |
| CN103480984A (en) * | 2013-09-22 | 2014-01-01 | 北京工业大学 | 308 stainless steel flux-cored wire low in hexavalent chromium discharge |
| CN103737198A (en) * | 2014-01-15 | 2014-04-23 | 四川大西洋焊接材料股份有限公司 | Gas-shielded flux-cored wire for stainless steel welding |
| CN104690446A (en) * | 2015-02-12 | 2015-06-10 | 西安理工大学 | Flux-cored wire for nickel-saving 2205 duplex stainless steel and preparation method of flux-cored wire |
| CN105728989A (en) * | 2016-04-12 | 2016-07-06 | 湘潭大学 | High-toughness atmosphere corrosion resistance flux-cored solder wire and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649798A (en) * | 2017-10-20 | 2018-02-02 | 西安理工大学 | 25Cr2Ni4MoV steel metal flux-cored wire and preparation method |
| CN107971657A (en) * | 2017-11-27 | 2018-05-01 | 四川大西洋焊接材料股份有限公司 | For weld SUS316L austenitic stainless steel deep cooling low temperature storage-transport vessel, equipment gas-shielded flux-cored wire |
| CN109967917A (en) * | 2019-05-17 | 2019-07-05 | 武汉铁锚焊接材料股份有限公司 | A kind of stainless flux-cored wire and preparation method thereof of resistance to boiling concentrated nitric acid corrosion |
| CN109967917B (en) * | 2019-05-17 | 2021-06-11 | 武汉铁锚焊接材料股份有限公司 | Boiling-resistant concentrated nitric acid corrosion-resistant stainless steel flux-cored wire and preparation method thereof |
| CN110666390A (en) * | 2019-10-25 | 2020-01-10 | 王胜心 | Stainless steel flux-cored wire without oxidation color |
| CN112388202A (en) * | 2020-12-01 | 2021-02-23 | 四川大西洋焊接材料股份有限公司 | Welding wire flux core, welding wire, preparation method of welding wire and welding method |
| CN112388202B (en) * | 2020-12-01 | 2022-06-24 | 四川大西洋焊接材料股份有限公司 | Welding wire flux core, welding wire, preparation method of welding wire and welding method |
| CN113579551A (en) * | 2021-08-13 | 2021-11-02 | 北京工业大学 | 253MA heat-resistant stainless steel flux-cored wire and preparation method thereof |
| CN113579551B (en) * | 2021-08-13 | 2022-07-05 | 北京工业大学 | 253MA heat-resistant stainless steel flux-cored wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106514040B (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106514040B (en) | A kind of gas shielded stainless flux-cored wire and its production technology for boiler-burner | |
| CN105057926B (en) | A kind of flux-cored wire special that built-up welding is repaired for hot-work die | |
| JP4558780B2 (en) | Flux-cored wire for submerged arc welding of low-temperature steel | |
| CN108723636B (en) | Welding wire powder with low crack sensitivity, flux-cored wire, preparation and application | |
| CN108480875B (en) | Welding wire powder, flux-cored wire, preparation and application | |
| CN107971657A (en) | For weld SUS316L austenitic stainless steel deep cooling low temperature storage-transport vessel, equipment gas-shielded flux-cored wire | |
| CN105772990A (en) | Titanic-acid stainless steel welding electrode and manufacturing method thereof | |
| CN108453415A (en) | A kind of welding wire medicinal powder, stainless flux-cored wire and the preparation method and application thereof | |
| CN107931887A (en) | A kind of end socket special stainless steel gas shielded arc welding flux-cored wire and preparation method thereof | |
| CN110253173A (en) | A kind of austenitic stainless steel self-shielded arc welding increasing material manufacturing flux cored wire | |
| JP2015139807A (en) | stainless steel welding flux cored wire | |
| CN106112312A (en) | Nichrome steel nickel-base welding rod and production method thereof for military project pneumatic system | |
| CN101596657B (en) | Ultra-low-carbon heat-resistant steel flux-cored wire capable of carrying out all-position welding | |
| CN109759745B (en) | Welding rod for high-current welding stainless steel pressure container | |
| JP5064928B2 (en) | Flux-cored wire for submerged arc welding for high-strength steel. | |
| CN108000001A (en) | New type stainless steel. corrosion resistance flux-cored wire | |
| CN104772582B (en) | A kind of high intensity low hydrogen self-protection flux-cored wire suitable for petroleum pipeline | |
| CN108971798A (en) | Mixed gas protected austenitic stainless steel special welding wire and preparation method | |
| CN110900033B (en) | Gas shielded mineral powder type 314 heat-resistant stainless steel flux-cored wire | |
| CN109483083A (en) | The method of nuclear power stainless steel band pole submerged arc overlay welding welding, sintered flux and nuclear power stainless steel band pole submerged arc overlay welding | |
| WO2022210651A1 (en) | Duplex stainless steel wire rod, and duplex stainless steel wire | |
| CN108544127A (en) | 1Cr12NiW1MoV stainless steels and the stainless steel welded gas shielded type flux-cored wires and preparation method thereof of G520 | |
| CN112658532B (en) | Coating of austenitic stainless steel welding rod, preparation method and application | |
| JP5473371B2 (en) | Coated arc welding rod for duplex stainless steel welding to refine solidified crystal grains | |
| CN104942466B (en) | A kind of self-shielded welding wire and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 643000 1 Danyang street, artesian well district, Zigong, Sichuan Applicant after: Sichuan Atlantic China Welding Consumables, Inc. Applicant after: DEC Dongfang Boiler (Group) Co., Ltd. Address before: 643010 2 Ma Chong Kou street, Da'an District, Zigong, Sichuan Applicant before: Sichuan Atlantic China Welding Consumables, Inc. Applicant before: DEC Dongfang Boiler (Group) Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |