CN105234590A - SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire - Google Patents

SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire Download PDF

Info

Publication number
CN105234590A
CN105234590A CN201510797203.2A CN201510797203A CN105234590A CN 105234590 A CN105234590 A CN 105234590A CN 201510797203 A CN201510797203 A CN 201510797203A CN 105234590 A CN105234590 A CN 105234590A
Authority
CN
China
Prior art keywords
weight portion
weight
nuclear power
submerged arc
arc welding
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.)
Pending
Application number
CN201510797203.2A
Other languages
Chinese (zh)
Inventor
杨飞
谷雨
彭祺珉
王弘昶
蒋勇
黄逸峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN ATLANTIC CHINA WELDING CONSUMABLES Inc
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Original Assignee
SICHUAN ATLANTIC CHINA WELDING CONSUMABLES Inc
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SICHUAN ATLANTIC CHINA WELDING CONSUMABLES Inc, Shanghai Nuclear Engineering Research and Design Institute Co Ltd filed Critical SICHUAN ATLANTIC CHINA WELDING CONSUMABLES Inc
Priority to CN201510797203.2A priority Critical patent/CN105234590A/en
Publication of CN105234590A publication Critical patent/CN105234590A/en
Pending legal-status Critical Current

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
    • B23K35/36—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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • B23K35/3066—Fe as the principal constituent with Ni as next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—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
    • B23K35/3073—Fe as the principal constituent with Mn as next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding

Abstract

The invention discloses a SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and a special welding wire. The SA-508Gr.3Cl.2 steel submerged arc welding agent is prepared by the following components: 10-10.5 parts of SiO2 by weight, 33.5-34 parts of MgO by weight, 15-17 parts of Al2O3 by weight, 30-32 parts of CaF2 by weight, 2-4 parts of CaO by weight, 2-3 parts of MnO by weight, 2-3 parts of Na2O by weight, and 0.5-1 part of K2O by weight. Compared with the prior art, the SA-508Gr.3Cl.2 steel submerged arc welding agent is excellent in welding process performance and mechanical performance; after the heat treatment of keeping a temperature of 595-620 DEG C by 40 h is performed, deposited metal obtains good performance; the mechanical performance in the heat treatment state satisfies technical indexes; and the stability is strong.

Description

Nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux and special welding wire
Technical field
The present invention relates to a kind of welding material, particularly a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, special welding wire and welding method.
Background technology
The security at generation Ⅲ nuclear power station and economy all will obviously be better than second generation nuclear power station.Due to the prerequisite that safety is nuclear power developing, except some two generations are built except lengthening the life to the second generation unit run in countries in the world unit with complementarity, next newly a collection of Construction of Nuclear Electricity emphasis adopts safer, more economical advanced generation Ⅲ nuclear power unit.National energy " 12 " planning clearly proposes: new nuclear power unit must meet three generations's safety standard.Along with going into operation successively of domestic three generations's nuclear power generating sets, the demand of three generations's nuclear power generating sets welding material is also grown with each passing day, nuclear island primary device Process for Heavy Support need use a large amount of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux and special welding wire, this welding wire solder flux deposited metal is proposed to the performance requirement of the longest insulation 40h heat treatment state.But because of after post weld heat treatment, easily there is marked change in deposited metal mechanical property, be difficult to reach nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux and special welding wire deposited metal composition and mechanical property requirements, thus reach the solder flux of required performance indications and welding wire be at present needed for.
The special flux that current nuclear power engineering SA-508Gr.3C1.2 steel does not also match with it and welding wire, after adopting universal solder materials, deposited metal can not ensure that deposited metal is through 595-620 DEG C, the performance that after insulation 40h heat treatment, deposited metal obtains, can not meet the technical requirement of nuclear power engineering SA-508Gr.3C1.2 steel.
Therefore in order to satisfied country introduces the needs of Generation Ⅲ, be badly in need of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux and special welding wire that research can meet Generation Ⅲ requirement, break through a nuclear power generating equipment welding material domestic technology difficult problem, accelerate nuclear power generating equipment autonomy-oriented process.
Summary of the invention
An object of the present invention is just to provide a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, this nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux has good welding technological properties and mechanical property, through 595-620 DEG C, the performance that after insulation 40h heat treatment, deposited metal obtains, the mechanical property of heat treatment state meets technical indicator, has strong stability.
Technical scheme is: a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, and a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux is made up of following composition:
SiO 210-10.5 weight portion, MgO33.5-34 weight portion, Al 2o 315-17 weight portion, CaF 230-32 weight portion, CaO2-4 weight portion, MnO2-3 weight portion, Na 2o2-3 weight portion 3, K 2o0.5-1 weight portion.
As preferably, described SiO 210 weight portions, MgO34 weight portion, Al 2o 315 weight portions, CaF 232 weight portions, CaO3 weight portion, MnO2 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
As preferably, described SiO 210.5 weight portions, MgO33.5 weight portion, Al 2o 316 weight portions, CaF 230.5 weight portions, CaO3 weight portion, MnO2.5 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
As preferably, described SiO 210.5 weight portions, MgO33.5 weight portion, Al 2o 317 weight portions, CaF 230 weight portions, CaO3 weight portion, MnO3 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
Two of object of the present invention is the preparation method providing a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux.
Technical scheme is: a kind of preparation method of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, comprises the following steps:
Step one, each component powder of solder flux described in arbitrary for claim 1-4 claim is placed in blender, is uniformly mixed;
Step 2, add the binding agent mix and blend granulation of solder flux weight 15-20%;
Step 3, again through 100-200 DEG C of low-temperature bake, 600-800 DEG C of high temperature sintering, screening.
As preferably, described binding agent is the sodium silicate containing lithium metasilicate, and described low-temperature bake is 150 DEG C of low-temperature bakes, and described high temperature sintering is 700 DEG C of high temperature sinterings.
Three of object of the present invention is the special welding wire providing a kind of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux.
Technical scheme is: a kind of special welding wire of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, and this welding wire contains following composition:
C0.040-0.100%; Mn1.25-1.80%; Si0.20-0.40%; P≤0.080%; S≤0.006%; Cr≤0.10%; Ni1.4-2.1%; Mo0.35-0.55%; Cu≤0.10%; V≤0.05%; Ti≤0.10%; Zr≤0.10%; Nb≤0.02%, surplus is iron and trace impurity, and % is mass percent.
As preferably, described C0.072%, Mn1.45%, Si0.28%, P0.0039%, S0.0035%, Cr0.012%, Ni1.62%, Mo0.49%, Cu0.014%, V0.0029%, Ti0.001%, Zr0.0033%, Nb0.0024%.
Four of object of the present invention is the welding method providing a kind of nuclear power engineering SA-508Gr.3C1.2 steel.
Technical scheme is: a kind of welding method of nuclear power engineering SA-508Gr.3C1.2 steel, the method adopts above-mentioned submerged arc welding flux and special welding wire.
Inventive principle:
The present invention devises a kind of SiO 2-MgO-Al 2o 3-CaF 2basic slag system.By to the surface tension of slag, the adjustment of viscosity, improve the mobility of slag.By the adjustment to aspects such as slag fusing point, linear expansion coefficients, improve the removability of slag of skull.By the adjustment to the content of material such as potassium, sodium, improve the arc stability of solder flux, by the specially treated to some raw and auxiliary material, reduce the crystal water content of solder flux.
In the present invention, SiO 2being the main component improving welding technological properties, is also main slag forming constituents.SiO 2be a kind of acidic materials, reduce flux basicity, with CaF in solder flux 2collocation, can affect the anti-pore ability of solder flux.SiO 2the freezing point of slag, surface tension and cinder high-temperature viscosity can be adjusted, have important effect to welding bead outward appearance and shape.SiO 2larger on removability of slag impact, along with SiO 2the increase of amount, de-slag becomes easy, and antioxygenic property also strengthens, and surface pressing pit reduces, but along with SiO 2the further increase of amount, the welding composite technology performance of solder flux but reduces step by step.For this reason, SiO 2content controls in certain scope.
MgO is good slag making materials, and it can increase the gas permeability of slag, suppresses surface oxidation, reduces the viscosity of acid slag, reduces the content of diffusible hydrogen simultaneously, and has the effect increasing slag surface tension force.Along with the increase of content of MgO, the coefficient of expansion of slag increases, and weld composite technology performance also in raising progressively, but MgO fusing point is higher, increase viscosity coefficient of dross, improve slag setting temperature, suppress the mobility of slag that appearance of weld is deteriorated, slag is hardening, and de-slag difficulty, thus content of MgO can not be too much.In this invention, in order to ensure Weld Performance, by studying and adjusting, MgO addition controls in certain scope.
Al 20 3it is the main component affecting the removability of slag, in low alkalinity situation, the surface tension of slag can be made to reduce, in addition its fusing point is higher, the coefficient of expansion of high temperature and differing greatly of iron, along with the increase of its addition, ripple attenuates. and appearance of weld improves and is conducive to de-slag, and welding composite technology performance also improves accordingly.But, along with Al 2o 3the further increase of amount, de-slag becomes more and more difficult, welds composite technology performance simultaneously and is also progressively reducing.So content controls % in certain scope.
MnO in welding process with SiO 2be combined into the silicate of compound; form good welding slag; protection deposited metal, make deposited metal not by the impact of N and O in air, and the manganese element be reduced is primary alloy constituent in weld seam; weld strength and impact flexibility can be improved; meanwhile, the S chemical combination in the manganese be reduced and weld seam, forms the effect that MnS serves de-S; for this reason, determine that MnO content controls in certain scope.
CaF 2there is the oxygen content reducing deposited metal while promoting deposited metal purifying reaction, improve anti-pore ability.CaF2 fusing point is lower, can effectively reduce cinder high-temperature viscosity, improve slag fluidity, and improve electric conductivity, improve appearance of weld, and have good impact to metal desulfurization.But, along with the increase of the content of CaF2 in solder flux, the composite technology hydraulic performance decline of solder flux.In this invention, test proves that CaF2 has better effects within the scope of the present invention.
CaO is basic anhydride, plays slag making and improve flux basicity effect in solder flux.CaO is stronger basic anhydride, and comparatively strong with the binding ability of S, P, can reduce S, P content in weld metal, it effectively can improve solder flux heavy current ability, improves weld properties.In the invention of this solder flux, addition controls in certain scope.
K 2o, Na 2o is low degree of ionization oxide, can improve flux basicity, and appropriate content can improve arc stability, and in solder flux, addition all controls in certain scope.
The present invention, by the ratio of the various component of rational proportion, ensures that solder flux obtains good mechanical property and welding technological properties.Postwelding obtains suitable deposited metal composition, obtains good mechanical property, ensures to obtain good processing performance and mechanical property, obtains the deposited metal of high purity.
Beneficial effect:
Solder flux of the present invention and welding wire is adopted to weld nuclear power SA-508Gr.3C1.2 steel steel construction, through 595-620 DEG C, after insulation 40h heat treatment, deposited metal obtains good performance, tensile strength 620-795Mpa, yield strength >=540Mpa, percentage elongation >=18% of the as-welded and post weld heat treatment state deposited metal of its normal temperature, 360 DEG C of high temperature as-welded and heat treatment tensile strength >=560Mpa, yield strength >=370Mpa, 8 DEG C are impacted >=reach more than 170J ,-25 DEG C of impacts reach more than 100J, deposited metal diffusible hydrogen content < 4mL/100g.Effectively improve weld seam overall performance, and welding technological properties is good, arc stability, splash little, appearance of weld is attractive in appearance, de-slag is good.
The present invention welds rear weld seam and has the premium properties such as intensity, high tenacity, low-crackle sensitive close with SA-508Gr.3C1.2 steel.Can be used for the welding of CAP1400 project nuclear power plant evaporator and voltage-stablizer.
Solder flux in the present invention and welding wire adapt to the welding being used for generation Ⅲ nuclear power SA-508Gr.3C1.2 steel construction.
Detailed description of the invention
The invention will be further described below.
Embodiment 1
By SiO 210kg, MgO34kg, Al 2o 315kg, CaF 232kg, CaO3kg, MnO2kg, Na 2o3kg, K 2the powder of O1kg is placed in blender, be uniformly mixed after, add 18kg sodium silicate mixing granulation, then through 150 DEG C of low-temperature bakes, 700 DEG C of high temperature sinterings, screening, i.e. obtained solder flux product.
EM2 welding wire (component of weld wire is by weight percentage: C0.072, Mn1.45, Si0.28, P0.0039, S0.0035, Cr0.012, Ni1.62, Mo0.49, Cu0.014, V0.0029, Ti0.001, Zr0.0033, Nb0.0024, and surplus is iron and trace impurity) is coordinated to carry out submerged arc welding experiment to the SA-508Gr.3C1.2 steel plate that 20mm is thick this solder flux.Welding technological properties is excellent, and welding process is stablized, and between welding bead and welding bead, fusion is good, and de-slag is easy, and welding bead surface forming is attractive in appearance, and weld edge is neat, without weld defects such as undercut, pore, crackles.
Solder flux in embodiment 1 and welding wire are carried out its result of the test of deposited metal mechanical property test as follows:
Deposited metal composition (%) in table 1 example 1
As-weldedly directly at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing after insulation 40h heat treatment, testing result sees the following form 2.
Deposited metal mechanical property in table 2 example 1
As-weldedly directly under≤-20 DEG C of environment, carry out drop weight test detection for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, and under≤-20 DEG C of environment, carry out drop weight test detection after insulation 40h heat treatment, testing result is as follows:
The as-welded T of deposited metal drop weight test nDT=-55 DEG C, 610 DEG C × 40h post weld heat treatment state T nDT=-35 DEG C.
Weld seam carries out ray detection by ASTME1032 standard, and its result is qualified.
The assay method of deposited metal diffusible hydrogen content presses AWSA4.3, diffusible hydrogen content: 3.2L/100g
Embodiment 2
By SiO 210.5kg, MgO33.5kg, Al 2o 316kg, CaF 230.5kg, CaO3kg, MnO2.5kg, Na 2o3kg, K 2the powder of O1kg is placed in blender, be uniformly mixed after, add 18kg sodium silicate mixing granulation, then through 150 DEG C of low-temperature bakes, 700 DEG C of high temperature sinterings, screening, i.e. obtained solder flux product.
EM2 welding wire (component of weld wire is by weight percentage: C0.072, Mn1.45, Si0.28, P0.0039, S0.0035, Cr0.012, Ni1.62, Mo0.49, Cu0.014, V0.0029, Ti0.001, Zr0.0033, Nb0.0024, and surplus is iron and trace impurity) is coordinated to carry out submerged arc welding experiment to the SA-508Gr.3C1.2 steel plate that 20mm is thick this solder flux.Welding technological properties is excellent, and welding process is stablized, and between welding bead and welding bead, fusion is good, and de-slag is easy, and welding bead surface forming is attractive in appearance, and weld edge is neat, without weld defects such as undercut, pore, crackles.
Solder flux in embodiment 2 and welding wire are carried out its result of the test of deposited metal mechanical property test as follows:
Deposited metal composition (%) in table 3 example 2
As-weldedly directly at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing after insulation 40h heat treatment, testing result sees the following form 4.
Deposited metal mechanical property in table 4 example 2
As-weldedly directly under≤-20 DEG C of environment, carry out drop weight test detection for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, and under≤-20 DEG C of environment, carry out drop weight test detection after insulation 40h heat treatment, testing result is as follows:
The as-welded T of deposited metal drop weight test nDT=-55 DEG C, 610 DEG C × 40h post weld heat treatment state T nDT=-45 DEG C.
Weld seam carries out ray detection by ASTME1032 standard, and its result is qualified.
The assay method of deposited metal diffusible hydrogen content presses AWSA4.3, diffusible hydrogen content: 3.1L/100g.
Embodiment 3
By SiO 210.5kg, MgO33.5kg, Al 2o 317kg, CaF 230kg, CaO3kg, MnO3kg, Na 2o3kg, K 2the powder of O1kg is placed in blender, be uniformly mixed after, add 18kg sodium silicate mixing granulation, then through 150 DEG C of low-temperature bakes, 700 DEG C of high temperature sinterings, screening, i.e. obtained solder flux product.
EM2 welding wire (component of weld wire is by weight percentage: C0.072, Mn1.45, Si0.28, P0.0039, S0.0035, Cr0.012, Ni1.62, Mo0.49, Cu0.014, V0.0029, Ti0.001, Zr0.0033, Nb0.0024, and surplus is iron and trace impurity) is coordinated to carry out submerged arc welding experiment to the SA-508Gr.3C1.2 steel plate that 20mm is thick this solder flux.Welding technological properties is excellent, and welding process is stablized, and between welding bead and welding bead, fusion is good, and de-slag is easy, and welding bead surface forming is attractive in appearance, and weld edge is neat, without weld defects such as undercut, pore, crackles.
Solder flux in embodiment 3 and welding wire are carried out its result of the test of deposited metal mechanical property test as follows:
Deposited metal composition (%) in table 5 example 3
As-weldedly directly at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, at room temperature and 360 DEG C, carry out deposited metal mechanics properties testing after insulation 40h heat treatment, testing result sees the following form 6.
Deposited metal mechanical property in table 6 example 3
As-weldedly directly under≤-20 DEG C of environment, carry out drop weight test detection for postwelding is untreated, 610 DEG C × 40h represents that postwelding is through 610 DEG C, and under≤-20 DEG C of environment, carry out drop weight test detection after insulation 40h heat treatment, testing result is as follows:
The as-welded T of deposited metal drop weight test nDT=-75 DEG C, 610 DEG C × 40h post weld heat treatment state T nDT=-65 DEG C.
Weld seam carries out ray detection by ASTME1032 standard, and its result is qualified.
The assay method of deposited metal diffusible hydrogen content presses AWSA4.3, diffusible hydrogen content: 2.7L/100g.
In the present invention, SA-508Gr.3C1.2 steel plate chemical composition following (wt%):
C0.18, Mn1.4, Si0.17, P0.005, S0.003, Cr0.14, Ni0.79, Mo0.51, Cu0.04, V0.005, surplus is Fe.
Its performance of the every experiment of embodiment 1-3 all meets the technical requirement of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux and special welding wire.

Claims (9)

1. a nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux, be made up of following composition:
SiO 210-10.5 weight portion, MgO33.5-34 weight portion, Al 2o 315-17 weight portion, CaF 230-32 weight portion, CaO2-4 weight portion, MnO2-3 weight portion, Na 2o2-3 weight portion 3, K 2o0.5-1 weight portion.
2. nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux according to claim 1, is characterized in that: described SiO 210 weight portions, MgO34 weight portion, Al 2o 315 weight portions, CaF 232 weight portions, CaO3 weight portion, MnO2 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
3. nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux according to claim 1, is characterized in that: described SiO 210.5 weight portions, MgO33.5 weight portion, Al 2o 316 weight portions, CaF 230.5 weight portions, CaO3 weight portion, MnO2.5 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
4. nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux according to claim 1, is characterized in that: described SiO 210.5 weight portions, MgO33.5 weight portion, Al 2o 317 weight portions, CaF 230 weight portions, CaO3 weight portion, MnO3 weight portion, Na 2o3 weight portion 3, K 2o1 weight portion.
5. a nuclear power engineering preparation method for SA-508Gr.3C1.2 steel submerged arc welding flux, comprises the following steps:
Step one, each component powder of solder flux described in arbitrary for claim 1-4 claim is placed in blender, is uniformly mixed;
Step 2, add the binding agent mix and blend granulation of solder flux weight 15-20%;
Step 3, again through 100-200 DEG C of low-temperature bake, 600-800 DEG C of high temperature sintering, screening.
6. the preparation method of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux according to claim 5, it is characterized in that: described binding agent is the sodium silicate containing lithium metasilicate, described low-temperature bake is 150 DEG C of low-temperature bakes, and described high temperature sintering is 700 DEG C of high temperature sinterings.
7. a special welding wire for the nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux described in the arbitrary claim of claim 1-4, this welding wire contains following composition:
C0.040-0.100%; Mn1.25-1.80%; Si0.20-0.40%; P≤0.080%; S≤0.006%; Cr≤0.10%; Ni1.4-2.1%; Mo0.35-0.55%; Cu≤0.10%; V≤0.05%; Ti≤0.10%; Zr≤0.10%; Nb≤0.02%, surplus is iron and trace impurity, and % is mass percent.
8. the special welding wire of nuclear power engineering SA-508Gr.3C1.2 steel submerged arc welding flux according to claim 7, is characterized in that: described C0.072%, Mn1.45%, Si0.28%, P0.0039%, S0.0035%, Cr0.012%, Ni1.62%, Mo0.49%, Cu0.014%, V0.0029%, Ti0.001%, Zr0.0033%, Nb0.0024%.
9. a nuclear power engineering welding method for SA-508Gr.3C1.2 steel, is characterized in that: the method adopts the submerged arc welding flux described in the arbitrary claim of claim 1-4 and the special welding wire described in the arbitrary claim of claim 7-8.
CN201510797203.2A 2015-11-18 2015-11-18 SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire Pending CN105234590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510797203.2A CN105234590A (en) 2015-11-18 2015-11-18 SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510797203.2A CN105234590A (en) 2015-11-18 2015-11-18 SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire

Publications (1)

Publication Number Publication Date
CN105234590A true CN105234590A (en) 2016-01-13

Family

ID=55032541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510797203.2A Pending CN105234590A (en) 2015-11-18 2015-11-18 SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire

Country Status (1)

Country Link
CN (1) CN105234590A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271205A (en) * 2016-08-31 2017-01-04 北京国电富通科技发展有限责任公司 A kind of alloy welding wire
CN106392379A (en) * 2016-12-15 2017-02-15 昆山京群焊材科技有限公司 Austenite Nb/Ti-containing stainless steel submerged-arc welding flux
CN108637527A (en) * 2018-07-27 2018-10-12 四川西冶新材料股份有限公司 A kind of Lincoln weld sintered flux and preparation method for 1000MPa high-strength steel
CN109202330A (en) * 2018-11-09 2019-01-15 湖北大西洋焊接材料有限公司 One kind exempting from weather-proof steel bridge sintered flux of coating and preparation method thereof
CN111151919A (en) * 2019-12-27 2020-05-15 中国第一重型机械集团大连加氢反应器制造有限公司 Submerged-arc welding wire matched with steel for 3Ni-1.6Cr-0.5Mo nuclear power equipment
CN115635213A (en) * 2022-12-23 2023-01-24 天津市金桥焊材科技有限公司 Arc striking agent for welding electrode

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480487A (en) * 1966-01-03 1969-11-25 Union Carbide Corp Arc welding compositions
US4338142A (en) * 1980-06-27 1982-07-06 Kobe Steel, Limited Melting flux composition for submerged arc welding
CN102380694A (en) * 2011-09-15 2012-03-21 南京钢铁股份有限公司 Welding process for longitudinal weld joints of submerged-arc welding for high-strength pipeline steel
CN103480975A (en) * 2013-05-15 2014-01-01 丹阳市华龙特钢有限公司 Manufacturing method of nuclear-grade austenitic stainless steel welding wire
CN103521946A (en) * 2013-11-02 2014-01-22 丹阳市华龙特钢有限公司 High-strength austenitic stainless steel submerged-arc welding wire
CN103753046A (en) * 2014-01-15 2014-04-30 四川大西洋焊接材料股份有限公司 Welding flux for carbon steel submerged arc strip surfacing and preparation method for welding flux

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480487A (en) * 1966-01-03 1969-11-25 Union Carbide Corp Arc welding compositions
US4338142A (en) * 1980-06-27 1982-07-06 Kobe Steel, Limited Melting flux composition for submerged arc welding
CN102380694A (en) * 2011-09-15 2012-03-21 南京钢铁股份有限公司 Welding process for longitudinal weld joints of submerged-arc welding for high-strength pipeline steel
CN103480975A (en) * 2013-05-15 2014-01-01 丹阳市华龙特钢有限公司 Manufacturing method of nuclear-grade austenitic stainless steel welding wire
CN103521946A (en) * 2013-11-02 2014-01-22 丹阳市华龙特钢有限公司 High-strength austenitic stainless steel submerged-arc welding wire
CN103753046A (en) * 2014-01-15 2014-04-30 四川大西洋焊接材料股份有限公司 Welding flux for carbon steel submerged arc strip surfacing and preparation method for welding flux

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271205A (en) * 2016-08-31 2017-01-04 北京国电富通科技发展有限责任公司 A kind of alloy welding wire
CN106271205B (en) * 2016-08-31 2019-10-22 北京国电富通科技发展有限责任公司 A kind of alloy welding wire
CN106392379A (en) * 2016-12-15 2017-02-15 昆山京群焊材科技有限公司 Austenite Nb/Ti-containing stainless steel submerged-arc welding flux
CN108637527A (en) * 2018-07-27 2018-10-12 四川西冶新材料股份有限公司 A kind of Lincoln weld sintered flux and preparation method for 1000MPa high-strength steel
CN109202330A (en) * 2018-11-09 2019-01-15 湖北大西洋焊接材料有限公司 One kind exempting from weather-proof steel bridge sintered flux of coating and preparation method thereof
CN111151919A (en) * 2019-12-27 2020-05-15 中国第一重型机械集团大连加氢反应器制造有限公司 Submerged-arc welding wire matched with steel for 3Ni-1.6Cr-0.5Mo nuclear power equipment
CN115635213A (en) * 2022-12-23 2023-01-24 天津市金桥焊材科技有限公司 Arc striking agent for welding electrode
CN115635213B (en) * 2022-12-23 2023-04-07 天津市金桥焊材科技有限公司 Arc striking agent for welding electrode

Similar Documents

Publication Publication Date Title
CN105234590A (en) SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire
CN103008918A (en) Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire
CN107470796B (en) The bridge mating welding rod of 800MPa grades of weathering steels and its production method
CN103008913B (en) Corrosion-resistance stainless steel electric welding rod used for nuclear power and production method thereof
CN100542732C (en) Submerged arc welding flux material used for high grade pipe line steel
CN103551760B (en) A kind of nuclear power carbon steel welding carbon steel and preparation method
CN108581270B (en) Sintered flux for welding LPG ship and preparation method and application thereof
CN101549445A (en) Submerged arc welding flux material for X80 pipeline steel and preparing method thereof
CN107442968A (en) For welding the welding rod and its production method of nickel-base alloy or the welding of Ni9% steel
CN101905389B (en) Electrode for welding high-strength and high-toughness steel
CN103737199A (en) Ultra supercritical heat-resistant steel welding rod and production method thereof
CN103273222A (en) High-strength high-tenacity sintered flux for afterheat-free welding
CN109530976A (en) Bridge mating solder flux of 800MPa weather-resistant and high-strength steel and preparation method thereof
CN102233497A (en) CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa
CN103056558A (en) Submerged-arc flux for low-temperature impact of Cr-Mo heat-resistant steel and narrow-gap submerged-arc welding and preparation method thereof
CN102794583A (en) Preheat-free welding rod and manufacturing method and application thereof
CN103753046A (en) Welding flux for carbon steel submerged arc strip surfacing and preparation method for welding flux
CN102922175B (en) Dedicated submerged-arc welding flux for petroleum pipeline
CN110181201B (en) High-toughness corrosion-resistant welding rod for coastal engineering and application thereof
CN103737192A (en) Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method
CN104096986A (en) High-strength low-hydrogen low-alloy-steel iron powder welding electrode with high low-temperature impact resistance and for nuclear grade 1 and preparation method thereof
Yu et al. Effect of chemical composition on the element distribution, phase composition and calcification roasting process of vanadium slag
CN108672982B (en) Raw yarn for electric arc additive manufacturing of petroleum pipeline structural member
CN109093286A (en) A kind of 2.25Cr-1Mo steel exchange submerged arc welding welding wire and solder flux
CN108637527A (en) A kind of Lincoln weld sintered flux and preparation method for 1000MPa high-strength steel

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Yang Fei

Inventor after: Gu Yu

Inventor after: Li Xinyu

Inventor after: Gu Guoxing

Inventor after: Peng Qimin

Inventor after: Wang Hongchang

Inventor after: Zhang Xiaobai

Inventor after: Jiang Yong

Inventor after: Huang Yifeng

Inventor before: Yang Fei

Inventor before: Gu Yu

Inventor before: Peng Qimin

Inventor before: Wang Hongchang

Inventor before: Jiang Yong

Inventor before: Huang Yifeng

COR Change of bibliographic data
RJ01 Rejection of invention patent application after publication

Application publication date: 20160113