CN105108374B - Nuclear power station main steam line automatic welding special welding wire - Google Patents
Nuclear power station main steam line automatic welding special welding wire Download PDFInfo
- Publication number
- CN105108374B CN105108374B CN201510313717.6A CN201510313717A CN105108374B CN 105108374 B CN105108374 B CN 105108374B CN 201510313717 A CN201510313717 A CN 201510313717A CN 105108374 B CN105108374 B CN 105108374B
- Authority
- CN
- China
- Prior art keywords
- content
- main steam
- nuclear power
- welding wire
- steam line
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3026—Mn as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of nuclear power station main steam line automatic welding special welding wire, it includes following chemical composition：0.05~0.1wt% of C content, 0.7~1.0wt% of Si contents, 1~1.5wt% of Mn contents, P content≤0.02wt%, S content≤0.02wt%, Ni content≤1.29~1.50wt% of 0.15wt%, Cr content, Mo content ＜ 0.15wt%, Cu content≤0.4wt%.Compared with prior art, the chemical composition and SA335 P11 main steam lines of nuclear power station main steam line automatic welding special welding wire deposited metal of the present invention are relatively, mechanical property is also superior to existing CHW 40CNH welding wires or suitable with existing CHW 40CNH welding wires, therefore it is significantly increased using the anti-FAC performances of its SA335 P11 main steam line weld seam completed, quality of the nuclear power station main steam line weld seam during operation is ensure that, the safe operation to nuclear power generating sets is significant.
Description
Technical field
The present invention relates to nuclear power station main steam line automatic welding special welding material, especially one kind can be reduced substantially
The special welding wire of FAC corrosion rates.
Background technology
Medium temperature is high in the secondary circuit main steam delivery pipe of nuclear island of nuclear power station, flow velocity is fast, big flow (is about thermoelectricity
1.7~1.9 times), it can produce because " Flow accelerated corrosion (FAC) " is existing caused by the flowing velocity of conveying steam and water is higher
As, i.e. carbon steel pipe internal surface is in the case where substantial amounts of, swiftly flowing carbonated drink is washed away, inwall have defencive function oxide layer deterioration,
It is thinning, make steel matrix variation, the increased phenomenon of annual corrosion rate.Flow accelerated corrosion phenomenon is likely to result in pipe explosion accident when serious,
Therefore the anti-carbonated drink erosion property of raising delivery pipe is needed.
According to existing research data, FAC corrosion rate depends on medium temperature, flow velocity, pH value, electrode electricity in carbon steel
The factor such as position, tubing alloying element, thermodynamics, wherein tubing alloying element can be by select steel grades to solve.
Research has shown that, FAC corrosion rate can be substantially reduced after the Cr contents that particular range is added in carbon steel, " is thinned relatively
Cr% relations in rate-steel " result of the test shows that, as the Cr content ＞ 0.04% in carbon steel, FAC speed declines rapidly：Pipeline
Corrosion rate of the material Cr contents at≤0.04% is higher, and corrosion rate is substantially suitable, it is assumed that be 1, with the increasing of Cr contents
Plus, corrosion rate is gradually reduced；When Cr contents reach 0.2%, the relative velocity of corrosion is 0.2；When Cr contents reach 1%
When, the relative velocity of corrosion is 0.045.SA335P11 main steam lines are exactly to develop in this context with higher anti-FAC
The new steel grade of performance, its chemical composition and mechanical property is as shown in table 1, table 2.
Table 1, SA335P11 steel chemical compositions table/wt%
Table 2, SA335P11 steel mechanical property tables
The anti-FAC purposes of SA335P11 steel, it is desirable to which also there is certain content in matched welding material deposited metal
Cr elemental compositions, so as to also have the Cr of certain content in weld metal, the weld metal part of such pipeline also has anti-
FAC abilities.Due to chemistry can only be selected there is presently no the welding material special matched with SA335P11 steel, therefore in Construction of Nuclear Electricity
Composition, mechanical property and the close CHW-40CNH welding wires of SA335P11 steel carry out the welding of SA335P11 steel.
CHW-40CNH welding wires are to the addition of Ni, Cr, Cu element in a kind of weathering steel welding wire, its chemical composition, for corruption
Corrosion atmospheric environment.Chemical composition, the mechanical property of CHW-40CNH welding wires are as shown in table 3, though from table 3 it can be seen that its composition
It is so close with SA335P11 steel, but still have bigger difference., it was also found that using CHW-40CNH welding wires in actual welding construction
When welding SA335P11 steel, molten bath poor fluidity, similar to stainless steel welding stick, operates level requirement higher welder, is unfavorable for
Welding quality is applied and improved to automatic welding technique.
Table 3, CHW-40CNH welding wires chemical composition (wt%), mechanical property table
In view of this, it is special it is necessory to provide that a kind of chemical composition and mechanical property and SA335P11 steel match completely
Welding wire.
The content of the invention
It is an object of the invention to：A kind of chemical composition and mechanical property is provided and the welding of SA335P11 steel automatic welding is complete
The special welding wire of matching, to ensure the demand of the engineering construction of nuclear power projects mass and follow-up operation maintenance.
In order to realize foregoing invention purpose, present inventor is through concentrating on studies and testing, it was found that a kind of chemistry into
Divide and be best suitable for the material as SA335P11 steel automatic welding special welding wires, there is provided a kind of nuclear power SA335P11 steel is automatic accordingly
Special welding wire is welded, it is to include the steel wire of following chemical composition：0.05~0.1wt% of C content, 0.7~1.0wt% of Si contents,
1~1.5wt% of Mn contents, P content≤0.02wt%, S content≤0.02wt%, Ni content≤0.15wt%, Cr content 1.29
~1.50wt%, Mo content ＜ 0.15wt%, Cu content≤0.4wt%.
Improved as one kind of nuclear power main steam automatic welding of pipelines special welding wire of the present invention, the deposited metal of the welding wire
Including following chemical composition：C content 0.05wt%, Si content 0.82wt%, Mn content 1.26wt%, P content 0.013wt%, S
Content 0.006wt%, Ni content 0.018wt%, Cr content 1.29wt%, Mo content 0.011wt%, Cu content 0.188wt%.
Improved as one kind of nuclear power main steam automatic welding of pipelines automatic welding special welding wire of the present invention, the rule of the welding wire
Lattice are Φ 0.8mm.
Present invention also offers a kind of nuclear power main steam automatic welding of pipelines special welding wire, the deposited metal bag of the welding wire
Include following chemical composition：C content 0.03wt%, Si content 0.90wt%, Mn content 1.19wt%, P content 0.013wt%, S contain
Measure 0.006wt%, Ni content 0.016wt%, Cr content 1.32wt%, Mo content 0.011wt%, Cu content 0.242wt%.
Improved as one kind of nuclear power main steam automatic welding of pipelines special welding wire of the present invention, the specification of the welding wire is Φ
1.0mm。
Compared with prior art, the chemical composition of nuclear power main steam automatic welding of pipelines special welding wire deposited metal of the present invention
With SA335P11 main steam lines relatively, mechanical property also superior to existing CHW-40CNH welding wires or with existing CHW-
40CNH welding wires quite, therefore are significantly increased using its anti-FAC performance for completing main steam line weld seam, it is ensured that nuclear power station
Quality of the main steam line weld seam during operation, the safe operation to nuclear power generating sets is significant.It can be seen that, core of the present invention
Electric main steam line automatic welding special welding wire is efficiently solved currently without the welding matched with SA335P11 main steam lines
Problem of materials.
Embodiment
In order that goal of the invention, technical scheme and its advantageous effects of the present invention become apparent from, below in conjunction with accompanying drawing
And embodiment, the present invention will be described in further detail.It should be appreciated that the specific reality described in this specification
Apply mode to explain the present invention, be not intended to limit the present invention.
In order to coordinate with SA335P11 main steam lines steel, inventor has drawn nuclear power of the present invention through many experiments
Chemical composition, the chemical composition of welding wire deposited metal and the mechanical property of SA335P11 main steam line steel automatic welding special welding wires
Energy design load, as shown in Table 4-6.
Table 4, nuclear power station main steam line automatic welding special welding wire Design of Chemical Composition value/wt%
Table 5, nuclear power station main steam line automatic welding special welding wire deposited metal composition design load/wt%
Table 6, nuclear power station main steam line automatic welding special welding wire deposited metal mechanical property design load
When production is smelted, because of the limitation scope of silicone content in nuclear power station main steam line automatic welding special welding wire of the present invention
Relative narrower, so, the smelting of steel ingot acquires a certain degree of difficulty, after by selecting high quality silicon iron material, then add the silicon of proper content
Iron, has reached the purpose of increase alloy.
For copper-plating technique, because of nuclear power main steam pipeline automatic welding special welding wire element containing Cr of the present invention, with common
Electroless copper replacement result it is poor, welding wire surface copper facing is bad, uneven, by experiment, uses electroplating technology instead and has reached reason
Think effect.
After tested, according to two kinds of nuclear power main steam line automatic welding special welding wire deposited metals of the design production of the present invention
Chemical composition and mechanical property are as shown in table 7-8.
Table 7, each embodiment welding wire deposited metal composition test result/wt%
| Embodiment | C | Si | Mn | P | S | Ni | Cr | Mo | Cu |
| Φ0.8mm | 0.05 | 0.82 | 1.26 | 0.013 | 0.006 | 0.018 | 1.29 | 0.011 | 0.188 |
| Φ1.0mm | 0.03 | 0.90 | 1.19 | 0.013 | 0.006 | 0.016 | 1.32 | 0.011 | 0.242 |
Table 8, each embodiment welding wire deposited metal mechanical experimental results
Compared with prior art, nuclear power station main steam line automatic welding special welding wire deposited metal of the present invention chemistry into
Divide with SA335P11 steel relatively, mechanical property is welded also superior to existing CHW-40CNH welding wires or with existing CHW-40CNH
Silk quite, therefore is significantly increased using the anti-FAC performances of its SA335P11 main steam line weld seam completed, it is ensured that nuclear power
Quality of station owner's jet chimney weld seam during operation, the safe operation to nuclear power generating sets is significant.It can be seen that, the present invention
Nuclear power main steam pipeline automatic welding special welding wire is efficiently solved asks currently without the welding material matched with SA335P11 steel
Topic.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.Although in addition, this specification
In used some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (5)
1. a kind of nuclear power station main steam line automatic welding special welding wire, it is characterised in that：The welding wire include it is following chemistry into
Point：0.05~0.1wt% of C content, 0.7~1.0wt% of Si contents, 1~1.5wt% of Mn contents, P content≤0.02wt%, S contain
Amount≤0.02wt%, Ni content≤1.29~1.50wt% of 0.15wt%, Cr content, Mo content ＜ 0.15wt%, Cu content≤
0.4wt%.
2. nuclear power station main steam line automatic welding special welding wire according to claim 1, it is characterised in that：The welding wire
Deposited metal include following chemical composition：C content 0.05wt%, Si content 0.82wt%, Mn content 1.26wt%, P content
0.013wt%, S content 0.006wt%, Ni content 0.018wt%, Cr content 1.29wt%, Mo content 0.011wt%, Cu contain
Measure 0.188wt%.
3. nuclear power station main steam line automatic welding special welding wire according to claim 2, it is characterised in that：The welding wire
Specification be Φ 0.8mm.
4. a kind of nuclear power station main steam line automatic welding special welding wire, it is characterised in that：The deposited metal of the welding wire includes
Following chemical composition：C content 0.03wt%, Si content 0.90wt%, Mn content 1.19wt%, P content 0.013wt%, S content
0.006wt%, Ni content 0.016wt%, Cr content 1.32wt%, Mo content 0.011wt%, Cu content 0.242wt%.
5. nuclear power station main steam line automatic welding special welding wire according to claim 4, it is characterised in that：The welding wire
Specification be Φ 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313717.6A CN105108374B (en) | 2015-06-09 | 2015-06-09 | Nuclear power station main steam line automatic welding special welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313717.6A CN105108374B (en) | 2015-06-09 | 2015-06-09 | Nuclear power station main steam line automatic welding special welding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105108374A CN105108374A (en) | 2015-12-02 |
| CN105108374B true CN105108374B (en) | 2017-10-31 |
Family
ID=54656598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510313717.6A Active CN105108374B (en) | 2015-06-09 | 2015-06-09 | Nuclear power station main steam line automatic welding special welding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105108374B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109719418A (en) * | 2018-12-31 | 2019-05-07 | 苏州新普新材料科技有限公司 | Nuclear power 20 controls chromium steel special welding wire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273838A (en) * | 1976-03-08 | 1981-06-16 | Combustion Engineering, Inc. | Weld metal resistant to neutron-bombardment embrittlement |
| JP2002336989A (en) * | 2001-05-16 | 2002-11-26 | Sumikin Welding Ind Ltd | Welding material for seashore weather resistant steel |
| CN101664863A (en) * | 2009-09-24 | 2010-03-10 | 湖北猴王焊材有限公司 | Seawater corrosion resistant submerged arc welding wire |
| CN101670477A (en) * | 2009-09-17 | 2010-03-17 | 胜利油田孚瑞特石油装备有限责任公司 | Welding method of sulfureted hydrogen resistant underground heat-insulated oil pipe |
| CN103600178A (en) * | 2013-11-27 | 2014-02-26 | 南车眉山车辆有限公司 | High-strength solid wire made of weathering resistant steel through gas shielded welding |
-
2015
- 2015-06-09 CN CN201510313717.6A patent/CN105108374B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273838A (en) * | 1976-03-08 | 1981-06-16 | Combustion Engineering, Inc. | Weld metal resistant to neutron-bombardment embrittlement |
| JP2002336989A (en) * | 2001-05-16 | 2002-11-26 | Sumikin Welding Ind Ltd | Welding material for seashore weather resistant steel |
| CN101670477A (en) * | 2009-09-17 | 2010-03-17 | 胜利油田孚瑞特石油装备有限责任公司 | Welding method of sulfureted hydrogen resistant underground heat-insulated oil pipe |
| CN101664863A (en) * | 2009-09-24 | 2010-03-10 | 湖北猴王焊材有限公司 | Seawater corrosion resistant submerged arc welding wire |
| CN103600178A (en) * | 2013-11-27 | 2014-02-26 | 南车眉山车辆有限公司 | High-strength solid wire made of weathering resistant steel through gas shielded welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105108374A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105269174B (en) | A kind of ocean engineering 460MPa grades of flux-cored wires and its application | |
| CN103170762B (en) | Solder wire special for nuclear power 20-control chrome steel | |
| CN101983827B (en) | Alloy creep resistant heat resistant steel submerged arc welding stick | |
| CN103846571B (en) | A kind of high-performance X100 pipe line steel welding wire for hidden arc welding and application thereof | |
| CN104493374A (en) | Austenitic stainless steel welding wire and welding technology thereof | |
| CN103862193B (en) | A kind of high-strength and high ductility pipe line steel reality core gas protecting welding wire | |
| CN105108374B (en) | Nuclear power station main steam line automatic welding special welding wire | |
| CN102179641A (en) | Submerged-arc welding wire for building cargo oil tank of oil tanker | |
| CN102189352B (en) | P92 steel submerged arc welding wire | |
| CN103170763A (en) | Welding rod special for nuclear power 20-control chrome steel | |
| CN101633085B (en) | Stainless steel welding wire and technology for welding same | |
| WO2019047793A1 (en) | Super304h steel welding wire resistant to high-temperature creep and aging brittleness | |
| CN107900556A (en) | A kind of austenitic stainless steel self-protection flux-cored wire | |
| CN106563892A (en) | Corrosion-resisting austenitic stainless steel submerged-arc welding wire and production method thereof | |
| CN108247234B (en) | A kind of high intensity submerged arc welding wire for steel and preparation method thereof | |
| CN105880871A (en) | Gas-shielded high-toughness solid welding wire and use method and application thereof | |
| CN106563889A (en) | Fracturing-preventing corrosion resistance austenite stainless steel submerged-arc welding wire and production method thereof | |
| CN106271205B (en) | A kind of alloy welding wire | |
| CN103084753B (en) | A kind of ferronickel Precise Alloy welding wire | |
| CN105108373B (en) | Nuclear power station main steam line Site Welding welding rod special for special | |
| CN108067762A (en) | Ultralow temperature steel welding wire | |
| CN106695166A (en) | Gas shielded welding wire for ultra-high-strength corrosion-resistant pipelines | |
| CN111015019A (en) | 00Cr20Mo16 welding wire and production process thereof | |
| CN1274459C (en) | High strength welding rod with excellent low-temperature toughness | |
| CN106425161A (en) | 50 kilogram-grade flux-cored wire for relieving stress after welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |