CN107252995B - 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 PDFInfo
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- CN107252995B CN107252995B CN201710455655.1A CN201710455655A CN107252995B CN 107252995 B CN107252995 B CN 107252995B CN 201710455655 A CN201710455655 A CN 201710455655A CN 107252995 B CN107252995 B CN 107252995B
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- welding
- stainless steel
- sodium
- steel electrode
- fast breeder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—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 electrodes for the cold fast breeder reactor welding of sodium, are made of coating and core wire；The coating is made of the raw material below according to mass percent: golden red mountain 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 are marble powder.The present invention not only has good operating characteristics, it is flat, horizontal, stand, face upward, position all has good welding usability, and the deposited metal composition with super clean, while there is excellent mechanical property in the high temperature 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 industries such as chemical industry, pressure-volume.
Description
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 technique
There are more than 400 nuclear power stations in the whole world at present, 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, considered so-called supplement reserves in time, at most may be used
It uses 200 years.And the cold fast breeder reactor of sodium can make full use of nuclear fuel, improve than utilization rate of the current thermal reactor to nuclear fuel
80 times, it can be achieved that the predicament that the proliferation of nuclear fuel requests the uranium resource that will be faced increasingly depleted, can make the sustainable of uranium resource
Using up to 3000 or more, while the innoxious period of nuke rubbish is greatly shortened, and the peace of nuclear reactor can be greatly improved
Quan Xing.
Therefore, it piles up fastly and occupies highly important status in the strategic of China's nuclear energy uses, country pushes away steadily
Into fast reactor engineering.Domestic few producers can produce the stainless steel electrode that can be used for the cold fast breeder reactor welding of sodium at present.
Summary of the invention
It is an object of the invention to be directed to novel nuclear reactor stainless steel welding material demand, provide a kind of cold fast for sodium
The stainless steel electrode of neutron multiplication heap welding had both met the gold of deposition required by GB/T13814 and AWS A5.11/5.11M standard
Belong to ingredient and deposited metal mechanical property, also meets the requirement of the cold fast breeder reactor stainless steel welding material of sodium, simultaneously
Slag fluidity is good when realizing welding, arc stability, slag covering is uniform, splashing is small, the removability of slag is excellent, weld seam light, molding
The purpose of beauty, bead height and weld seam infiltration angle are moderate, and welding rod resists rubescent ability strong and comprehensive good operation performance.
To achieve the above object, the invention provides the following technical scheme:
A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium, is made of coating and core wire；The coating by
It is formed below according to the raw material of mass percent: golden red mountain flour 2~8%, Fluorspar Powder 20~40%, feldspar 1.5~4.5%, cloud
Female 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%, iron powder 5~10%, ferrosilicon 2~5%, surplus are marble powder.
As a further solution of the present invention: the core wire is by below according to mass percent at being grouped as: C≤
0.08%, 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 are Fe and inevitable impurity.
As a further solution of the present invention: TiO in golden red mountain 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:40~50% in ferrosilicon；Ti >=70% in ferrotianium；TiO in potassium titanate2>=65%；Fluoaluminate is that chemistry is pure；
K in alginate2O >=10%.
As a further solution of the present invention: by mass percentage after mixing by the powder of raw material each in coating, adding
The sodium silicate or potassium water glass or potassium-sodium water glass for entering all total mass of raw materiales 20~30% make binder, are stirred
It is even；It is then fed into plodder and is wrapped on core wire, then bake through low temperature and high temperature.
As a further solution of the present invention: the weight of coating is the 30~45% of welding rod total weight in welding rod.
As a further solution of the present invention: binder Baume concentration is 41.5 °~42.5 °.
As a further solution of the present invention: the temperature that the low temperature bakes is 80~120 DEG C, and the temperature that high temperature bakes is
300~350 DEG C.
As a further solution of the present invention: the weight percent of deposited metal composition after the stainless steel electrode welding
It is respectively as follows: C≤0.08%, Mn 0.5~2.5%, Si≤0.90%, S≤0.010%, P≤0.010%, Nb:C% than content
× 8~1.0%, Cr:18.0~21.0%, Ni:9.0~11.0%, Cu≤0.2%, surplus are Fe and inevitable impurity.
The main function of each ingredient 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 the surface tension, viscosity, mobility of slag
Etc. physical properties, change and improve removability of slag energy, improve appearance of weld, reduce the effects of 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, stablizes electric arc, improves slag basicity, improves removability of slag energy, and have compared with
Good desulphurizing ability and indirect dephosphorization effect decomposes CO2 and weld seam is protected 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 corrosion resistance in weld seam, be added primarily as alloying constituent, guarantee weld seam corrosion resistant
Corrosion energy.Generally 2~5%.
Titanium dioxide: main function is plasticizer, improves the painting pressure property of welding rod, guarantees the presentation quality of welding rod, need because applying pressure
It wants and higher cost, unsuitable too many, dosage is 1~2.5%.
Fluorite: suitable fluorite can reduce the surface tension of liquid metal, improve its mobility, so that appearance of weld is beautiful
It sees, reduces weld porosity sensibility, and can reduce the diffusible hydrogen content of deposited metal.The suitable model of fluorite content of the 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,
It can play the role of deoxidization desulfuration 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
It is beneficial to connect electric arc.When metatitanic acid potassium content is more than 10%, coating moisture absorption increases, and when metatitanic acid potassium content is lower than 6%, improves welding rod
Welding technological properties effect is unobvious, thus limiting metatitanic acid potassium content in coating is 2.5~5%.
Fluoaluminate: main function be improve welding rod welding procedure performance, it is also beneficial to welding arc is stablized, but price compared with
It is expensive.When fluoaluminate content is more than 1.5%, coating moisture absorption increases, and when fluoaluminate content is lower than 0.5%, improves welding rod
Welding technological properties effect is unobvious, thus limiting metatitanic acid potassium content in coating is 1.0~3.0%.
Alginate: main function is arc stabilizer and binder, but will increase coating moisture absorption too much, and control content is
1.5~3%.
Ferrotianium: main function is deoxidier, provides weld seam anti-stomata ability, will lead to weld seam carburetting, therefore content too much
Control is 4~8%.
Compared with prior art, the beneficial effects of the present invention are:
The present invention not only has good operating characteristics, it is flat, horizontal, stand, face upward, position all has good welding procedure
Property, and the deposited metal composition with super clean, while there is excellent mechanical property in the high temperature 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 industries such as chemical industry, pressure-volume.
The invention has the following advantages that
(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 has good weld seam crack resistance.
(2) the chemical component purity of deposited metal is higher after the welding electrode, and performance is stablized 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 room temperature and mechanical behavior under high temperature, and has good room temperature impact toughness.
(4) welding rod has good corrosion resistance, Antiradiation performance.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Select diameter for the core wire of Φ 4.0mm in following example 1-3.Its specific chemical composition is shown in Table 1.
1 the present embodiment welding rod of table core wire specific chemical composition comparison (weight %, surplus be Fe and inevitably it is miscellaneous
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
It studies and point is included in table 3.
Table 3 is the deposited metal composition (weight %) of embodiment 1-3 stainless steel electrode
The mechanical property and room temperature impact performance of the stainless steel electrode deposited metal of the present embodiment 1-3 are as shown in table 4-5.
Table 4
5 room temperature impact performance of table
| Serial number | Weld pipe mill |
| 1 | 105 |
| 2 | 120 |
| 3 | 118 |
Above-described embodiment test result show it is of the invention possess for the cold fast neutron breeding surfacing welding electrode of sodium it is stable good
Tensile strength and elongation percentage and impact flexibility, can satisfy in GB/T 983-2012 " stainless steel electrode " completely 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 invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where 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, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of stainless steel electrode for the cold fast breeder reactor welding of sodium, is made of coating and core wire；It is characterized in that, institute
Coating is stated to be made of the raw material below according to mass percent: golden red mountain 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 are marble powder；
TiO in golden red mountain flour2>=91%；CaCO in marble powder3Content >=96%；CaF in Fluorspar Powder2>=95%；In feldspar
SiO250~65%, Al2O315%~25%, K2O >=12%；TiO in titanium dioxide2>=99%；SiO in mica250~65%,
Al2O320%~35%, K2O >=7%；Mn >=99.5% in electrolytic manganese；Fe >=99.0% in iron powder；Si:40 in ferrosilicon~
50%；Ti >=70% in ferrotianium；TiO in potassium titanate2>=65%；Fluoaluminate is that chemistry is pure；K in alginate2O >=10%.
2. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, which is characterized in that described
Core wire is by below according to mass percent at being grouped as: C≤0.08%, Mn≤2.0%, Si≤0.15%, Ni9.0%~
11.0%, S≤0.005%, P≤0.005%, Cr18.0%~21.0%, Mo≤0.5%, surplus is for Fe and inevitably
Impurity.
3. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, which is characterized in that by medicine
In skin the powder of each raw material by mass percentage after mixing, be added all total mass of raw materiales 20~30% sodium silicate or
Potassium water glass or potassium-sodium water glass make binder, are uniformly mixed；It is then fed into plodder and is wrapped on core wire, then
Baked through low temperature and high temperature.
4. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, which is characterized in that welding rod
The weight of middle coating is the 30~45% of welding rod total weight.
5. the stainless steel electrode according to claim 3 for the cold fast breeder reactor welding of sodium, which is characterized in that bonding
Agent Baume concentration is 41.5 °~42.5 °.
6. the stainless steel electrode according to claim 3 for the cold fast breeder reactor welding of sodium, which is characterized in that described
The temperature that low temperature bakes is 80~120 DEG C, and the temperature that high temperature bakes is 300~350 DEG C.
7. the stainless steel electrode according to claim 1 for the cold fast breeder reactor welding of sodium, which is characterized in that described
Stainless steel electrode welding after deposited metal composition weight percent content be respectively as follows: C≤0.08%, Mn0.5~
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 are Fe and inevitable impurity.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| 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 |
| CN111037153B (en) * | 2019-12-27 | 2021-10-22 | 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 |
| 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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| CN101362260A (en) * | 2008-09-27 | 2009-02-11 | 北京金威焊材有限公司 | Stainless steel electrode special for magnesium reduction pot |
| CN102528331A (en) * | 2010-12-20 | 2012-07-04 | 上海大西洋焊接材料有限责任公司 | Super biphase stainless steel welding electrode |
| CN105537798A (en) * | 2015-12-15 | 2016-05-04 | 上海大西洋焊接材料有限责任公司 | Nuclear-grade dual-phase stainless steel welding rod for CAP1400 master device |
| CN105537801A (en) * | 2015-09-01 | 2016-05-04 | 上海大西洋焊接材料有限责任公司 | Stainless steel welding rod used for 904 L steel welding |
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2017
- 2017-06-16 CN CN201710455655.1A patent/CN107252995B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362260A (en) * | 2008-09-27 | 2009-02-11 | 北京金威焊材有限公司 | Stainless steel electrode special for magnesium reduction pot |
| CN102528331A (en) * | 2010-12-20 | 2012-07-04 | 上海大西洋焊接材料有限责任公司 | Super biphase stainless steel welding electrode |
| CN105537801A (en) * | 2015-09-01 | 2016-05-04 | 上海大西洋焊接材料有限责任公司 | Stainless steel welding rod used for 904 L steel welding |
| CN105537798A (en) * | 2015-12-15 | 2016-05-04 | 上海大西洋焊接材料有限责任公司 | Nuclear-grade dual-phase stainless steel welding rod for CAP1400 master device |
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