CN107252995A - A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium - Google Patents

A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium Download PDF

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Publication number
CN107252995A
CN107252995A CN201710455655.1A CN201710455655A CN107252995A CN 107252995 A CN107252995 A CN 107252995A CN 201710455655 A CN201710455655 A CN 201710455655A CN 107252995 A CN107252995 A CN 107252995A
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Prior art keywords
stainless steel
welding
sodium
steel electrode
fast breeder
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CN201710455655.1A
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CN107252995B (en
Inventor
王卫华
陈远建
丁光辉
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SHANGHAI ATLANTIC WELDING CONSUMABLES CO Ltd
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SHANGHAI ATLANTIC WELDING CONSUMABLES CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

The invention discloses a kind of stainless steel electrode for the cold fast breeder reactor welding of sodium, it is made up of coating with core wire；The coating is made up of the raw material below according to mass percent：Golden red stone flour 2~8%, Fluorspar Powder 20~40%, feldspar 1.5~4.5%, mica 0~3%, titanium dioxide 1~2.5%, fluoaluminate 1.0~3.0%, electrolytic manganese 0.5~3%, potassium titanate 2~5%, alginate 1~3%, soda ash 0.3%~1.0%, crome metal 2%~5%, ferro-niobium 2%~5%, nickel powder 0%~1%, ferrotianium 3%~8%, iron powder 5~10%, ferrosilicon 2~5%, surplus is marble powder.The present invention not only has good operating characteristics, it is flat, horizontal, stand, face upward, position is respectively provided with good welding usability, and the deposited metal composition with super clean, while having excellent mechanical property in hot environment.The cold fast breeder reactor welding of stainless steel electrode application sodium of the present invention, it can also be used to the welding of the similar stainless steel grade of the other industry such as chemical industry, pressure-volume.

Description

A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium
Technical field
The present invention relates to technical field of welding materials, specifically a kind of stainless steel for the cold fast breeder reactor welding of sodium Welding rod.
Background technology
There is more than 400 nuclear power station in the current whole world, and the overwhelming majority is thermal reactor, and thermal reactor consumes the outer ton of uranium about 8 every year at present, By present development speed, explored uranium reserve can also be used 50 years or so, in time in view of so-called supplement reserves, at most may be used Use 200 years.And the cold fast breeder reactor of sodium can make full use of nuclear fuel, the utilization rate of nuclear fuel is improved than current thermal reactor 80 times, the propagation that nuclear fuel can be achieved requests the predicament for the uranium resource increasingly depleted that will be faced, and can make the sustainable of uranium resource Using up to more than 3000, while greatly shortening the innoxious cycle of nuke rubbish, and the peace of nuclear reactor can be greatly improved Quan Xing.
Therefore, highly important status is occupied in the strategic that China's nuclear energy uses are piled up soon, country pushes away steadily Enter fast reactor engineering.Current domestic few producers can produce the stainless steel electrode available for the cold fast breeder reactor welding of sodium.
The content of the invention
It is cold fast it is an object of the invention to be used for sodium there is provided one kind for new nuclear reactor stainless steel welding material demand The stainless steel electrode of neutron multiplication heap welding, had both met the deposition gold required by GB/T13814 and AWS A5.11/5.11M standards Belong to composition and deposited metal mechanical property, also meet the use requirement of the cold fast breeder reactor stainless steel welding material of sodium, simultaneously Slag fluidity is good, the covering of arc stability, slag is uniform, the small, removability of slag of splashing is excellent, weld seam light, shaping when realizing welding Attractive in appearance, bead height and weld seam infiltration angle are moderate, and welding rod resists rubescent ability strong and the purpose such as comprehensive good operation performance.
To achieve the above object, the present invention provides following technical scheme：
A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium, is made up of coating with core wire；The coating by Constituted below according to the raw material of mass percent：Golden red stone flour 2~8%, Fluorspar Powder 20~40%, feldspar 1.5~4.5%, cloud Mother 0~3%, titanium dioxide 1~2.5%, fluoaluminate 1.0~3.0%, electrolytic manganese 0.5~3%, potassium titanate 2~5%, alginic acid Salt 1~3%, soda ash 0.3%~1.0%, crome metal 2%~5%, ferro-niobium 2%~5%, nickel powder 0%~1%, ferrotianium 3%~ 8%th, iron powder 5~10%, ferrosilicon 2~5%, surplus is marble powder.
It is used as further scheme of the invention：The core wire is made up of the composition below according to mass percent：C≤ 0.08%th, Mn≤2.0%, Si≤0.15%, Ni 9.0%~11.0%, S≤0.005%, P≤0.005%, Cr 18.0% ~21.0%, Mo≤0.5%, surplus is Fe and inevitable impurity.
It is used as further scheme of the invention：TiO in golden red stone flour2>=91%；CaCO in marble powder3Content >=96%； CaF in Fluorspar Powder2>=95%；SiO in feldspar250~65%, Al2O315%~25%, K2O >=12%；TiO in titanium dioxide2≥ 99%；SiO in mica250~65%, Al2O320%~35%, K2O >=7%；Mn >=99.5% in electrolytic manganese；Fe in iron powder >= 99.0%；Si in ferrosilicon：40~50%；Ti >=70% in ferrotianium；TiO in potassium titanate2>=65%；Fluoaluminate is pure for chemistry； K in alginate2O >=10%.
It is used as further scheme of the invention：After the powder of each raw material in coating is well mixed by mass percentage, plus The sodium silicate or KP1 or potassium-sodium water glass for entering all raw material gross masses 20~30% make binding agent, and stirring mixing is equal It is even；It is then fed into plodder and is wrapped on core wire, then bakee through low temperature and high temperature.
It is used as further scheme of the invention：The weight of coating is the 30~45% of welding rod gross weight in welding rod.
It is used as further scheme of the invention：Binding agent Baume concentration is 41.5 °~42.5 °.
It is used as further scheme of the invention：The temperature that the low temperature is bakeed is 80~120 DEG C, and the temperature that high temperature is bakeed is 300~350 DEG C.
It is used as further scheme of the invention：The weight percent of deposited metal composition after the stainless steel electrode welding It is respectively than content：C≤0.08%, Mn 0.5~2.5%, Si≤0.90%, S≤0.010%, P≤0.010%, Nb：C% × 8~1.0%, Cr：18.0~21.0%, Ni：9.0~11.0%, Cu≤0.2%, surplus is Fe and inevitable impurity.
The main function of each composition is as follows in coating raw material of the present invention：
Rutile：The main function of rutile is to stablize electric arc, slag making, adjusts surface tension, viscosity, the mobility of slag Etc. physical property, improve and improve removability of slag energy, improve appearance of weld, reduce the effect such as splashing；But too many rutile is easily disliked Change deposited metal mechanical performance and crack resistance, therefore content of the rutile in coating is 2~8%.
Marble：Main function is slag making, gas making, stable electric arc, improves slag basicity, improves removability of slag energy, and have compared with Good desulphurizing ability and indirect dephosphorization effect, decomposes CO2 and protects weld seam by oxygen, nitridation, not reduce the hydrogen content in weld metal； Content of the marble in coating is 25~45%.
Ferro-niobium：Niobium can effectively improve decay resistance in weld seam, be added primarily as alloying constituent, it is ensured that weld seam corrosion resistant Corrosion energy.Generally 2~5%.
Titanium dioxide：Main function is plasticizer, improves the painting pressure property of welding rod, it is ensured that the presentation quality of welding rod, is needed because applying pressure Higher with cost, unsuitable too many, consumption is 1~2.5%.
Fluorite：Appropriate fluorite can reduce the surface tension of liquid metal, improve its mobility so that appearance of weld is beautiful See, reduce weld porosity sensitiveness, and the diffusible hydrogen content of deposited metal can be reduced.The suitable model of the fluorite content of the present invention Enclose is 20~40%.
Electrolytic manganese：The addition of the electrolytic manganese mainly excessive manganese element into weld seam, improves the intensity and plasticity of weld metal, Deoxidization desulfuration can be played a part of simultaneously, accelerate welding reaction speed；Content of the electrolytic manganese in coating is 1~3%.
Potassium titanate：Main function is to improve welding rod welding procedure performance, also to the extrusion performance for improving welding rod and stable weldering Connect electric arc beneficial.When metatitanic acid potassium content is more than 10%, the increase of coating moisture absorption when metatitanic acid potassium content is less than 6%, improves welding rod Welding technological properties effect is not obvious, thus metatitanic acid potassium content is 2.5~5% in limitation coating.
Fluoaluminate：Main function be improve welding rod welding procedure performance, it is also beneficial to stablizing welding arc, but price compared with It is expensive.When fluoaluminate content is more than 1.5%, the increase of coating moisture absorption when fluoaluminate content is less than 0.5%, improves welding rod Welding technological properties effect is not obvious, thus metatitanic acid potassium content is 1.0~3.0% in limitation coating.
Alginate：Main function is arc stabilizer and binding agent, but can increase coating moisture absorption too much, controls the content to be 1.5~3%.
Ferrotianium：Main function be deoxidier there is provided the anti-stomata ability of weld seam, weld seam carburetting, therefore content can be caused too much Control is 4~8%.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention not only has good operating characteristics, it is flat, horizontal, stand, face upward, position is respectively provided with good welding procedure Property, and the deposited metal composition with super clean, while having excellent mechanical property in hot environment.The present invention is stainless The cold fast breeder reactor welding of steel electrode application sodium, it can also be used to the welding of the similar stainless steel grade of the other industry such as chemical industry, pressure-volume. The present invention has advantages below：
(1) relatively reasonable formula rate, with good welding technological properties：Arc stability, molten bath good fluidity, The covering of slag skull is uniform；De- slag is easy；Appearance of weld is smooth, and with good weld seam crack resistance.
(2) the chemical composition purity of deposited metal is higher after the welding electrode, and performance stablizes superior, complies fully with national standard GB/T 983 and Unite States Standard AWS A5.4 and the cold fast breeder reactor stainless steel welding material requirement of sodium.
(3) weld seam of the welding rod is in good normal temperature and mechanical behavior under high temperature, and has good room temperature impact toughness.
(4) welding rod has good decay resistance, Antiradiation performance.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
A diameter of Φ 4.0mm core wire is selected in example 1 below -3.Its specific chemical composition is shown in Table 1.
(weight %, surplus is Fe and inevitably miscellaneous for the core wire specific chemical composition contrast of the present embodiment welding rod of table 1 Matter)
Covering of an electrode composition proportion is shown in Table 2 in embodiment 1-3.
Table 2
The preparation of the welding rod of the present embodiment is to be pressed into stainless steel electrode on conventional oil pressure type electrode extrusion press.It is stainless Steel electrode carries out soldering test after 100 DEG C of low temperature dryings and the drying of 300 DEG C of high temperature.The change of the deposited metal of stainless steel electrode Study and point be included in table 3.
Table 3 is the deposited metal composition (weight %) of embodiment 1-3 stainless steel electrodes
The mechanical property and room temperature impact performance of the present embodiment 1-3 stainless steel electrode deposited metal are as shown in table 4-5.
Table 4
The room temperature impact performance of table 5
Sequence number Weld pipe mill
1 105
2 120
3 118
The cold fast neutron breeding surfacing welding electrode of sodium that is used for of above-described embodiment result of the test display present invention possesses the good of stabilization Tensile strength and elongation percentage, and impact flexibility, GB/T 983-2012 can be met completely《Stainless steel electrode》In to E347 And AWS A5.4《Specification for stainless steel Welding Electrodes for Shielded Metal Arc Welding》Requirement to E347, and experiment proves that fully meet the cold fast breeder reactor of sodium The requirement of stainless steel electrode welding technique.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It may be appreciated other embodiment.

Claims (8)

1. a kind of stainless steel electrode for the cold fast breeder reactor welding of sodium, is made up of coating with core wire；Characterized in that, institute Coating is stated to be made up of the raw material below according to mass percent：Golden red stone flour 2~8%, Fluorspar Powder 20~40%, feldspar 1.5~ 4.5%th, mica 0~3%, titanium dioxide 1~2.5%, fluoaluminate 1.0~3.0%, electrolytic manganese 0.5~3%, potassium titanate 2~ 5%th, alginate 1~3%, soda ash 0.3%~1.0%, crome metal 2%~5%, ferro-niobium 2%~5%, nickel powder 0%~1%, Ferrotianium 3%~8%, iron powder 5~10%, ferrosilicon 2~5%, surplus is marble powder.
2. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, it is characterised in that described Core wire is made up of the composition below according to mass percent：C≤0.08%, Mn≤2.0%, Si≤0.15%, Ni 9.0%~ 11.0%th, S≤0.005%, P≤0.005%, Cr 18.0%~21.0%, Mo≤0.5%, surplus are Fe and inevitable Impurity.
3. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, it is characterised in that golden red TiO in stone flour2>=91%；CaCO in marble powder3Content >=96%；CaF in Fluorspar Powder2>=95%；SiO in feldspar250~ 65%th, Al2O315%~25%, K2O >=12%；TiO in titanium dioxide2>=99%；SiO in mica250~65%, Al2O3 20%~35%, K2O >=7%；Mn >=99.5% in electrolytic manganese；Fe >=99.0% in iron powder；Si in ferrosilicon：40~50%；Titanium Ti >=70% in iron；TiO in potassium titanate2>=65%；Fluoaluminate is pure for chemistry；K in alginate2O >=10%.
4. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, it is characterised in that by medicine After the powder of each raw material is well mixed by mass percentage in skin, add all raw material gross masses 20~30% sodium silicate or KP1 or potassium-sodium water glass make binding agent, are uniformly mixed；It is then fed into plodder and is wrapped on core wire, then Bakeed through low temperature and high temperature.
5. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, it is characterised in that welding rod The weight of middle coating is the 30~45% of welding rod gross weight.
6. the stainless steel electrode according to claim 4 for the cold fast breeder reactor welding of sodium, it is characterised in that bond Agent Baume concentration is 41.5 °~42.5 °.
7. the stainless steel electrode according to claim 4 for the cold fast breeder reactor welding of sodium, it is characterised in that described The temperature that low temperature is bakeed is 80~120 DEG C, and the temperature that high temperature is bakeed is 300~350 DEG C.
8. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, it is characterised in that described The weight percent content of deposited metal composition is respectively after stainless steel electrode welding：C≤0.08%, Mn 0.5~ 2.5%th, Si≤0.90%, S≤0.010%, P≤0.010%, Nb：C% × 8~1.0%, Cr：18.0~21.0%, Ni： 9.0~11.0%, Cu≤0.2%, surplus is Fe and inevitable impurity.
CN201710455655.1A 2017-06-16 2017-06-16 A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium Active CN107252995B (en)

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Cited By (4)

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CN109093279A (en) * 2018-09-13 2018-12-28 上海大西洋焊接材料有限责任公司 A kind of stainless steel electrode and preparation method for the cold fast breeder reactor welding of sodium
CN111037153A (en) * 2019-12-27 2020-04-21 中国第一重型机械集团大连加氢反应器制造有限公司 E316H type welding rod for manufacturing fast neutron reactor equipment
CN111151918A (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 E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof
CN112975199A (en) * 2021-02-26 2021-06-18 天津市金桥焊材集团股份有限公司 Stainless steel welding rod for improving vertical welding process performance

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Publication number Priority date Publication date Assignee Title
CN109093279A (en) * 2018-09-13 2018-12-28 上海大西洋焊接材料有限责任公司 A kind of stainless steel electrode and preparation method for the cold fast breeder reactor welding of sodium
CN111037153A (en) * 2019-12-27 2020-04-21 中国第一重型机械集团大连加氢反应器制造有限公司 E316H type welding rod for manufacturing fast neutron reactor equipment
CN111151918A (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 E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof
CN111151918B (en) * 2019-12-27 2022-07-01 中国第一重型机械集团大连加氢反应器制造有限公司 E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof
CN112975199A (en) * 2021-02-26 2021-06-18 天津市金桥焊材集团股份有限公司 Stainless steel welding rod for improving vertical welding process performance
CN112975199B (en) * 2021-02-26 2023-02-21 天津市金桥焊材集团股份有限公司 Stainless steel welding rod for improving vertical welding process performance

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