CN103737192A - Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method - Google Patents

Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method Download PDF

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Publication number
CN103737192A
CN103737192A CN201410004199.5A CN201410004199A CN103737192A CN 103737192 A CN103737192 A CN 103737192A CN 201410004199 A CN201410004199 A CN 201410004199A CN 103737192 A CN103737192 A CN 103737192A
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CN
China
Prior art keywords
solder flux
welding
submerged
arc horizontal
metal containment
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
CN201410004199.5A
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Chinese (zh)
Inventor
毛兴贵
张效宁
兰志刚
张俊宝
蒋勇
余燕
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 CN201410004199.5A priority Critical patent/CN103737192A/en
Publication of CN103737192A publication Critical patent/CN103737192A/en
Pending legal-status Critical Current

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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
    • B23K35/3601—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
    • B23K35/36—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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/18—Submerged-arc welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

The invention relates to a soldering flux and discloses a soldering flux for submerged arc horizontal position welding of a steel containment. The soldering flux for submerged arc horizontal position welding of the steel containment comprises the following components of, by mass, 6-18% of SiO2, 22-40% of MgO, 12-28% of Al2O3, 15-30% of sigma CaO, 0.5-4% of MnO, 0.5-2% of Na2O, 0.2-2% of K2O, 0<TiO2<=3%, 0<Fe2O3<=3.0%, 0<S<=0.030%, and 0<P<=0.030%. Compared with soldering fluxes in prior art, the submerged arc soldering flux for submerged arc horizontal position welding of the steel containment is special for welding the steel containment for nuclear power and has the advantages of good welding manufacturability, slag removal effects and mechanical properties and attractive shaping.

Description

Solder flux, preparation method and the welding method for metal containment submerged-arc horizontal, used
Technical field
The present invention relates to a kind of solder flux, particularly a kind of solder flux of using for metal containment submerged-arc horizontal, preparation method and utilize this solder flux and the matching used welding method of welding wire CHW-S62HRF.
Background technology
Under the situation of widely applying at clean energy resourcies such as China's present stage nuclear powers, the emphasis of nuclear power projects Jiang Shi China clean energy resource development from now on, exploitation will have very large development space for nuclear power by the SAW consumable material of the materials such as metal containment SA738Gr.B steel, nuclear power is with in product now, existing solder flux exists cost high, poor performance after welding.
Summary of the invention
One of object of the present invention is just to provide a kind of solder flux of using for metal containment submerged-arc horizontal, and the solder flux that should use for metal containment submerged-arc horizontal is specifically designed to the horizontal position welding welding of the serial materials such as metal containment SA738Gr.B steel for nuclear power.
Technical scheme of the present invention is: a kind of solder flux of using for metal containment submerged-arc horizontal, and the solder flux that should use for metal containment submerged-arc horizontal is comprised of following composition:
SiO 2 6-18%；
MgO 22-40%；
Al 2O 3 12-28%；
ΣCaO 15-30%；
MnO 0.5-4%；
Na 2 O 0.5-2%；
K 2 O 0.2-2%；
0<TiO 2≤3%；
0<Fe 2O 3≤3.0%；
0<S≤0.030%；
0<P≤0.030%；
Described percentage is mass percent.
As preferably, described SiO 214kg;
Described MgO 30kg;
Described Al 2o 320kg;
Described Σ CaO 25kg;
Described MnO 0.5 kg;
Described Na 2o 0.5 kg;
Described K 2o 0.2kg;
Described TiO 20.5kg;
Described Fe 2o 31.0kg;
Described S 0.020kg;
Described P 0.026kg.
As preferably, described SiO 218kg;
Described MgO 25kg;
Described Al 2o 324kg;
Described Σ CaO 22kg;
Described MnO 0.8kg;
Described Na 2o 1.0 kg;
Described K 2o 0.4kg;
Described TiO 20.5kg;
Described Fe 2o 30.6kg;
Described S 0.020kg;
Described P 0.026kg.
As preferably, described SiO 210kg;
Described MgO 35kg;
Described Al 2o 318kg;
Described Σ CaO 20kg;
Described MnO 1.2kg;
Described Na 2o 1.1kg;
Described K 2o 0.5kg;
Described TiO 22.0kg;
Described Fe 2o 31.5kg;
Described S 0.018kg;
Described P 0.028kg.
Two of object of the present invention is to provide a kind of method for making of the above-mentioned solder flux of using for metal containment submerged-arc horizontal.
Technical scheme is: a kind of preparation method who prepares the above-mentioned solder flux of using for metal containment submerged-arc horizontal, comprises the following steps:
Each component raw material powder of solder flux is placed in blender, is uniformly mixed;
The binding agent mixing granulation that adds each component raw material powder total amount 15-20%;
50-400 low-temperature bake;
600-900 ℃ of high temperature sintering;
Screening.
As preferably, described binding agent is sodium silicate, KP1 or potassium-sodium water glass, and described low-temperature bake is 350 ℃ of low-temperature bakes, and described high temperature sintering is 750 ℃ of high temperature sinterings.
Three of object of the present invention is to provide a kind of welding method.
Technical scheme is: a kind of welding method, comprising:
The above-mentioned solder flux of using for metal containment submerged-arc horizontal;
Welding wire CHW-S62HRF;
The thick SA738Gr.B steel of 25mm.
Inventive principle:
MgO is a kind of strong alkaline substance, is also a kind of good slag making materials, and the control of its butt welded seam shape is extremely important.For basic slag system, MgO can improve weld metal impact flexibility, reduces diffusible hydrogen.But MgO fusing point is higher, increase viscosity coefficient of dross, improve slag setting temperature, the mobility that suppresses slag makes appearance of weld variation, welding bead center projections, slag hardening, de-slag difficulty, in this invention, in order to guarantee Weld Performance, by studying and adjusting, MgO addition is controlled at 22-40%.
Σ CaO plays slag making and improves flux basicity effect in solder flux, Σ CaO main source is for containing CaO or the natural wollastonite synthesizing by decomposition, fluorite etc., Σ CaO can effectively improve solder flux Chinese People's Anti-Japanese Military and Political College current capacity, improve weld properties, and Σ CaO has the effect of de-S, P impurity element, for this reason, in the invention of this solder flux, addition is controlled at 15-30%.
Al 2o 3amphoteric oxide, Al 2o 3having the capillary effect of the slag of increase, is the adjusting agent of viscosity coefficient of dross, by a large amount of Experimental Comparisons, is thought and is increased a certain amount of Al 2o 3can reduce load mould and tendency thereof, but too high Al 2o 3content can make weld seam radian sharper and unsmooth, easily produces pore and pit, skull hardening, Al 2o 3the too low face of weld that makes again of content is uneven, occurs the defects such as load mould and undercut, affects appearance of weld, so amount is controlled at 12-28%.
SiO 2be a kind of acidic materials, reduce flux basicity, in solder flux with CaF 2arrange in pairs or groups, can affect the anti-pore ability of solder flux, the high SiO of general employing in solder flux 2with low CaF 2proportioning, otherwise, low SiO 2adopt high CaF 2, can make like this solder flux there is good porosity resistance ability, SiO 2participate in slag making, adjust freezing point, surface tension and the cinder high-temperature viscosity of slag, the control that butt welded seam is shaped is extremely important.In this invention, the feature in conjunction with petroleum storage tank with solder flux, in order to obtain good technique and mechanical performance, we adopt a small amount of SiO 2content, because too high SiO 2content can cause welding wire scaling loss excessive, crosses and reduces greatly flux basicity, and making weld seam return Si increases, and low-temperature impact toughness declines, and for this reason, determines SiO 2content is at 6-18%.
MnO in welding process with SiO 2be combined into compound silicate; form good welding slag, protection deposited metal, makes deposited metal not be subject to the impact of N and O in air; and the manganese element being reduced is main alloying component in weld seam; can improve weld strength and impact flexibility, meanwhile, the manganese being reduced and the S chemical combination in weld seam; form the effect that MnS has played de-S; reduce weld seam and produce hot cracking tendency, but MnO is too high, can cause appearance of weld variation.
Na 2o and K 2o is low degree of ionization oxide, can improve flux basicity, and appropriate content can improve arc stability, and in solder flux, addition is all controlled in 2%.
TiO 2be acidic oxide, can improve the physical property of slag, long slag is become to short slag, make slag variation with temperature fast, make appearance of weld good, improve the removability of slag, adding fashionable overall control in 3%.
In addition, in order to meet and make the removability of slag, deoxidation, appearance of weld and the good requirements such as mechanical performance of weld seam, we adopt Si, Ca, Mn combined deoxidation and ooze the deoxidier of [Mn], appropriate design by formula is greatly improved solder flux of the present invention in shaping and performance, and adding of manganese can improve intensity and toughness, also be a kind of good desulfurizing agent, adding of Ca also has good effect to desulfurization, phosphorus, in solder flux, each composition Proper Match, has played good effect to the mechanical performance of weld structure and weld seam.
Invention beneficial effect:
1. the present invention rationally adopts the ratio of each constituent content, make solder flux of the present invention there is good welding procedure, particularly in horizontal position welding welding process, appearance of weld is attractive in appearance, skull can come off in automatic perk, weld seam transitions smooth, can be applicable to the horizontal position welding welding under different condition, make weld joint mechanical function admirable, can guarantee that weld metal low-temperature impact toughness (45 ℃) reaches the designing requirement of metal containment SA738Gr.B steel for nuclear power.
2. the present invention adopts basic slag system, coordinate special welding wire CHW-S62HRF, when nuclear power welds with the horizontal position welding of metal containment SA738Gr.B steel, have good Weld Performance, welding point room temperature tensile strength is at 625-730Mpa, and Testing Tensile Strength at Elevated Temperature is at 590-675Mpa, weld metal-29 ℃ as-welded Impact energy Ak v >=90J,-45 ℃ of Impact energy Ak v >=60J, properties meets metal containment designing requirement, can be applicable to the horizontal position welding welding of metal containment SA738Gr.B steel for nuclear power.
3. the present invention can be mated with carbon steel, low alloy steel welding wire, in welding, during carbon steel and low alloy steel, has good welding procedure, and de-slag is good, it is attractive in appearance to be shaped, satisfactory mechanical property.
4. solder flux of the present invention coordinates special welding wire under cryogenic conditions, and horizontal position welding welding point has the objects such as good low-temperature impact toughness (45 ℃), and its welding quality can meet the art designs requirements such as metal containment SA738Gr.B steel for nuclear power.
5. when solder flux of the present invention coordinates special welding wire welding nuclear power with metal containment SA738Gr.B steel, by using rational horizontal position welding welding procedure, can make chemical composition and the tissue of weld metal reach best, under as-welded and heat-treat condition, there is good, the rational mechanical performance index such as hot strength, impact value, cracking resistance, hardness, and the inner pore-free of weld seam, slag inclusion and crackle, meet the standard-required of metal containment SA738Gr.B steel for nuclear power completely.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
By component composition, be: SiO 214kg, MgO 30kg, Al 2o 320kg, Σ CaO 25kg, MnO 0.5 kg, Na 2o 0.5 kg, K 2o 0.2kg, TiO 20.5kg, Fe 2o 31.0kg, the pure powder of S 0.020kg and P 0.026kg is placed in blender, be uniformly mixed after, add 18 kg sodium silicate mixing granulations, then through 350 ℃ of low-temperature bakes, 750 ℃ of high temperature sinterings, screening, obtains basicity and is 2.3 solder flux.
Embodiment 2
By component composition, be: SiO 218kg, MgO 25kg, Al 2o 324kg, Σ CaO 22kg, MnO 0.8kg, Na 2o 1.0 kg, K 2o 0.4kg, TiO 20.5 kg, Fe 2o 3the pure powder of 0.6kg, S 0.020kg and P 0.026kg is placed in blender, be uniformly mixed after, add 16kg KP1 mixing granulation, then through 350 ℃ of low-temperature bakes, 750 ℃ of high temperature sinterings, screening, obtains flux basicity and is 2.1 solder flux.
Embodiment 3
By component composition, be: SiO 210kg, MgO 35kg, Al 2o 318 kg, Σ CaO 20kg, MnO 1.2 kg, Na 2o 1.1 kg, K 2o 0.5kg, TiO 22.0 kg, Fe 2o 31.5kg, the pure powder of S 0.018kg and P 0.028kg is placed in blender, be uniformly mixed after, add 17kg potassium-sodium water glass mixing granulation, then through 350 ℃ of low-temperature bakes, 750 ℃ of high temperature sinterings, screening, obtains flux basicity and is 2.6 solder flux.
Embodiment 4
The solder flux that embodiment 1 is prepared coordinates special welding wire CHW-S62HRF; adopt the thick SA738Gr.B steel plate of 25mm to carry out submerged-arc horizontal welding; processing performance is good; the performance of weld seam is after testing: welding point tensile strength 730Mpa under as-welded condition, yield strength 640Mpa, percentage elongation 29%; the contraction percentage of area 72%; Testing Tensile Strength at Elevated Temperature 675Mpa, the ballistic work of weld seam is KV2(-29 ℃)=90-150J, the ballistic work of weld seam is KV2(-45 ℃)=70-80J; Welding point tensile strength 680Mpa under condition under heat-treat condition, yield strength 590Mpa, percentage elongation 28%, the contraction percentage of area 68%, the ballistic work of Testing Tensile Strength at Elevated Temperature 610Mpa weld seam is KV2(-29 ℃)=100-140J, the ballistic work of weld seam is KV2(-45 ℃)=65-100J.
Embodiment 5
The solder flux that embodiment 2 is prepared coordinates special welding wire CHW-S62HRF; adopt the thick SA738Gr.B steel plate of 25mm to carry out submerged-arc horizontal welding; processing performance is good; the performance of weld seam is after testing: welding point tensile strength 695Mpa under as-welded condition, yield strength 600Mpa, percentage elongation 26%; the contraction percentage of area 65%; Testing Tensile Strength at Elevated Temperature 640Mpa, the ballistic work of weld seam is KV2(-29 ℃)=90-130J, the ballistic work of weld seam is KV2(-45 ℃)=85-105J; Welding point tensile strength 640Mpa under condition under heat-treat condition, yield strength 550Mpa, percentage elongation 27%, the contraction percentage of area 68%, Testing Tensile Strength at Elevated Temperature 605Mpa, the ballistic work of weld seam is KV2(-29 ℃)=95-115J, the ballistic work of weld seam is KV2(-45 ℃)=70-90J.
Embodiment 6
The solder flux that embodiment 3 is prepared coordinates special welding wire CHW-S62HRF; adopt the thick SA738Gr.B steel plate of 25mm to carry out submerged-arc horizontal welding; processing performance is good; the performance of weld seam is after testing: welding point tensile strength 710Mpa under as-welded condition; yield strength 625Mpa, percentage elongation 27%, the contraction percentage of area 70%; the ballistic work of Testing Tensile Strength at Elevated Temperature 640Mpa weld seam is KV2(-29 ℃)=100-130J, the ballistic work of weld seam is KV2(-45 ℃)=90-105J; Welding point tensile strength 650Mpa under condition under heat-treat condition, yield strength 570Mpa, percentage elongation 28%, the contraction percentage of area 69%, the ballistic work of Testing Tensile Strength at Elevated Temperature 590Mpa weld seam is KV2(-29 ℃)=105-125J, the ballistic work of weld seam is KV2(-45 ℃)=75-90J.

Claims (7)

1. a solder flux of using for metal containment submerged-arc horizontal, the solder flux that should use for metal containment submerged-arc horizontal is comprised of following composition:
SiO 2 6-18%；
MgO 22-40%；
Al 2O 3 12-28%；
ΣCaO 15-30%；
MnO 0.5-4%；
Na 2 O 0.5-2%；
K 2 O 0.2-2%；
0<TiO 2≤3%；
0<Fe 2O 3≤3.0%；
0<S≤0.030%；
0<P≤0.030%；
Described percentage is mass percent.
2. the solder flux of using for metal containment submerged-arc horizontal according to claim 1, is characterized in that:
Described SiO 214kg;
Described MgO 30kg;
Described Al 2o 320kg;
Described Σ CaO 25kg;
Described MnO 0.5 kg;
Described Na 2o 0.5 kg;
Described K 2o 0.2kg;
Described TiO 20.5kg;
Described Fe 2o 31.0kg;
Described S 0.020kg;
Described P 0.026kg.
3. the solder flux of using for metal containment submerged-arc horizontal according to claim 1, is characterized in that:
Described SiO 218kg;
Described MgO 25kg;
Described Al 2o 324kg;
Described Σ CaO 22kg;
Described MnO 0.8kg;
Described Na 2o 1.0 kg;
Described K 2o 0.4kg;
Described TiO 20.5kg;
Described Fe 2o 30.6kg;
Described S 0.020kg;
Described P 0.026kg.
4. the solder flux of using for metal containment submerged-arc horizontal according to claim 1, is characterized in that:
Described SiO 210kg;
Described MgO 35kg;
Described Al 2o 318kg;
Described Σ CaO 20kg;
Described MnO 1.2kg;
Described Na 2o 1.1kg;
Described K 2o 0.5kg;
Described TiO 22.0kg;
Described Fe 2o 31.5kg;
Described S 0.018kg;
Described P 0.028kg.
5. a preparation method who prepares the solder flux of using for metal containment submerged-arc horizontal described in the arbitrary claim of claim 1-4, comprises the following steps:
Each component raw material powder of solder flux is placed in blender, is uniformly mixed;
The binding agent mixing granulation that adds each component raw material powder total amount 15-20%;
50-400 low-temperature bake;
600-900 ℃ of high temperature sintering;
Screening.
6. the preparation method of the solder flux of using for the preparation of metal containment submerged-arc horizontal according to claim 5, it is characterized in that: described binding agent is sodium silicate, KP1 or potassium-sodium water glass, described low-temperature bake is 350 ℃ of low-temperature bakes, and described high temperature sintering is 750 ℃ of high temperature sinterings.
7. a welding method, comprising:
The solder flux of using for metal containment submerged-arc horizontal described in the arbitrary claim of claim 1-4;
Welding wire CHW-S62HRF;
The thick SA738Gr.B steel of 25mm.
CN201410004199.5A 2014-01-06 2014-01-06 Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method Pending CN103737192A (en)

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Application Number Priority Date Filing Date Title
CN201410004199.5A CN103737192A (en) 2014-01-06 2014-01-06 Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350665A (en) * 2017-08-09 2017-11-17 安徽红桥金属制造有限公司 A kind of high efficiency solder flux and preparation method thereof
CN108195865A (en) * 2018-03-29 2018-06-22 兰州兰石检测技术有限公司 For the submerged arc welding flux standard sample and preparation method of X-ray fluorescence spectra analysis
CN109530881A (en) * 2019-01-08 2019-03-29 四川大西洋焊接材料股份有限公司 Weld submerged arc flux, welding wire and the preparation method of ultralow temperature potassium steel
CN110052739A (en) * 2019-05-15 2019-07-26 天津市永昌焊丝有限公司 A kind of high-strength and high ductility submerged-arc horizontal solder flux and its preparation method and application
CN112872653A (en) * 2021-02-04 2021-06-01 苏州鑫之泰焊接材料有限公司 Stainless steel flux-cored wire without gas protection and preparation method thereof
CN114905181A (en) * 2021-02-08 2022-08-16 株式会社神户制钢所 Flux-cored wire for gas-shielded arc welding

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CN102218623A (en) * 2011-05-26 2011-10-19 四川大西洋焊接材料股份有限公司 Welding flux for X100 pipe line steel submerged arc-welding and preparation method thereof
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GB1021923A (en) * 1962-06-21 1966-03-09 Soudure Autogene Elect Process of electrical welding by fusion
DE1508354B1 (en) * 1966-01-03 1971-04-01 Union Carbide Corp WELDING POWDER
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350665A (en) * 2017-08-09 2017-11-17 安徽红桥金属制造有限公司 A kind of high efficiency solder flux and preparation method thereof
CN108195865A (en) * 2018-03-29 2018-06-22 兰州兰石检测技术有限公司 For the submerged arc welding flux standard sample and preparation method of X-ray fluorescence spectra analysis
CN109530881A (en) * 2019-01-08 2019-03-29 四川大西洋焊接材料股份有限公司 Weld submerged arc flux, welding wire and the preparation method of ultralow temperature potassium steel
CN109530881B (en) * 2019-01-08 2021-07-09 四川大西洋焊接材料股份有限公司 Submerged-arc welding flux and welding wire for welding ultralow-temperature high-manganese steel and preparation method
CN110052739A (en) * 2019-05-15 2019-07-26 天津市永昌焊丝有限公司 A kind of high-strength and high ductility submerged-arc horizontal solder flux and its preparation method and application
CN110052739B (en) * 2019-05-15 2022-06-28 天津市永昌焊丝有限公司 High-strength high-toughness transverse submerged arc welding flux and preparation method and application thereof
CN112872653A (en) * 2021-02-04 2021-06-01 苏州鑫之泰焊接材料有限公司 Stainless steel flux-cored wire without gas protection and preparation method thereof
CN114905181A (en) * 2021-02-08 2022-08-16 株式会社神户制钢所 Flux-cored wire for gas-shielded arc welding

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Application publication date: 20140423