CN103659041A - Welding rod matched with steel SA517 for nuclear power - Google Patents
Welding rod matched with steel SA517 for nuclear power Download PDFInfo
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- CN103659041A CN103659041A CN201310732170.4A CN201310732170A CN103659041A CN 103659041 A CN103659041 A CN 103659041A CN 201310732170 A CN201310732170 A CN 201310732170A CN 103659041 A CN103659041 A CN 103659041A
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- welding rod
- steel
- nuclear power
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- welding
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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
- B23K35/36—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
- B23K35/365—Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials
-
- 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
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
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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 discloses a welding rod matched with steel SA517 for nuclear power plants. The welding rod is composed of a welding rod steel core and a coating, wherein the welding rod steel core is an H08GX steel wire, water glass is used as binder, and the welding rod is prepared through existing welding rod production equipment and an existing welding rod production technological method. The welding rod matched with the steel SA517 for nuclear power is characterized in that the coating of the welding rod is prepared from, by weight, 18% of CaCO3, 43% of CaF2, 2% of NaF, 3-4% of Mn, 3-4% of Si-Fe, 0.8% of Cr, 1.1% of Mo, 4.5% of Mg, 11% of Ni and the balance of iron powder. The weight of the coating accounts for 40% of the total weight of the welding rod, and the granularity of the Mg is controlled between 60 meshes and 200 meshes. The welding rod matched with steel SA517 for nuclear power has the advantages that the welding rod is good in welding processing property and mechanical property, deposited metal chemical components and the deposited metal mechanical properties of the welding rod can meet welding requirements of the steel SA517 for nuclear power plants, and the welding rod is matched with the steel SA517 for nuclear power plants.
Description
Technical field
The present invention relates to field of welding material, be specifically related to the supporting welding rod of steel SA517 for a kind of nuclear power.
Background technology
According to China's environment and economy sustainable development needs, Nuclear Power Development is the preferential selection of China's Optimization of Energy Structure, and nuclear power developing policy becomes present " greatly developing nuclear power " from " the develop actively nuclear power " of 2005.In order to adapt to new forms of energy development strategy, country is adjusting the planning of nuclear power Long-and Medium-term Development, strengthens coastal nuclear power developing, planning of science activities hinterland Construction of Nuclear Electricity.By constantly newly-increased nuclear power generating sets on-stream item, strive that to the year two thousand twenty nuclear power, accounting for the total installed capacity of electricity reaches more than 5%.
AP-1000 is good with its active security, can adopt modularization build model, can greatly shorten the completion time of project.Finally the Chinese government in 2007, determine to using that the AP-1000 of the U.S. selects as Chinese generation Ⅲ nuclear power Development Technology, become " technique direction " of Nuclear Energy in China.
The object of the present invention is to provide a kind of welding rod matching with steel SA517 with AP1000.
Summary of the invention
The object of the present invention is to provide the supporting welding rod of a kind of used in nuclear power station steel SA517 plate, the deposited metal composition of this welding rod and deposited metal mechanical property can meet the welding requirements of SA517 steel, are a kind of welding rods matching with SA517 steel.
In order to achieve the above object, the present invention adopts following technical scheme:
The supporting welding rod of a kind of used in nuclear power station steel SA517, by welding rod steel core and coating, formed, welding rod steel core adopts H08GX steel wire, in welding rod manufacturing process, use waterglass as binding agent, adopt existing welding rod production equipment and process method to be prepared from, it is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3 ~ 4, Si-Fe:3 ~ 4, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
Further, the described supporting welding rod of steel used for containment of nuclear power SA517, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3, Si-Fe:4, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
Further, the described supporting welding rod of steel used for containment of nuclear power SA517, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:4, Si-Fe:3, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
Further, the described supporting welding rod of steel used for containment of nuclear power SA517, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3.5, Si-Fe:3.5, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
Further, the described supporting welding rod of steel used for containment of nuclear power SA517, is characterized in that: the weight of described coating accounts for 40% of welding rod gross weight.
Further, the described supporting welding rod of steel used for containment of nuclear power SA517, is characterized in that: in described coating, the granularity control of Mg is at 60～200 orders.
In order to guarantee that the said welding rod of the present invention has good welding technological properties and mechanical property, adopt CaO-CaF
2type basic slag system.Basic clinker can effectively reduce the non-metallic inclusion of weld metal and have desulfidation, can significantly improve the toughness of weld metal.
Welding technological properties:
In electrode coating, to add acidic materials to there is good effect as the molten iron flow when improving welding such as SiO2, in order improving, in the basicity electrode coating of the present invention of slag, not add acidic materials as SiO2 etc., by strengthening CaF
2the bad problem of molten iron flow when the proportioning in electrode coating has solved welding.CaF
2so electric arc is unstable by adding NaF to guarantee arc stability in electrode coating when content is high.
The mechanical property of weld metal:
In welding rod of the present invention, adopt Mg to make main deoxidier, its deoxidation products MgO is basic anhydride, can improve the basicity of slag to guarantee the mechanical property of weld metal.The granularity control of Mg is at 60 orders between 200 orders, and granularity is thin, and welding rod is oxidizable when carrying out high temperature drying, Mg deoxidation effect variation during welding, and powder mobility that granularity is thick when welding rod produces is bad.
Feature of the present invention is: the electrode coating composition proportion adopting, can make welding rod there is good processing performance and mechanical property, making deposited metal composition and deposited metal mechanical property can meet the welding requirements of used in nuclear power station steel SA517, is a kind of welding rod matching with used in nuclear power station steel SA517.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Following embodiment coating weight accounts for 40% of welding rod gross weight.
Embodiment 1
The supporting welding rod of used in nuclear power station steel SA517, is comprised of welding rod steel core and coating, and welding rod steel core adopts H08GX steel wire, with waterglass as binding agent, adopt existing welding rod production equipment and process method preparation, it is characterized in that, the percentage by weight of this electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3, Si-Fe:4, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, iron powder: 12.6.
Embodiment 2
The supporting welding rod of used in nuclear power station steel SA517, is comprised of welding rod steel core and coating, and welding rod steel core adopts H08GX steel wire, with waterglass as binding agent, adopt existing welding rod production equipment and process method preparation, it is characterized in that, the percentage by weight of this electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:4, Si-Fe:3, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, iron powder: 12.6.
Embodiment 3
The supporting welding rod of used in nuclear power station steel SA517, is comprised of welding rod steel core and coating, and welding rod steel core adopts H08GX steel wire, with waterglass as binding agent, adopt existing welding rod production equipment and process method preparation, it is characterized in that, the percentage by weight of this electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3.5, Si-Fe:3.5, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, iron powder: 12.6.
The deposited metal composition of embodiment welding rod is in Table 1.
Table 1 deposited metal composition (%)
| C | Si | Mn | S | P | Mo | Ni | Cr | Cu | V | |
| Actual value 1 | 0.058 | 0.55 | 1.2 | 0.005 | 0.012 | 0.44 | 4.5 | 0.3 | 0.031 | 0.012 |
| Actual value 2 | 0.06 | 0.5 | 1.25 | 0.0072 | 0.013 | 0.42 | 4.35 | 0.25 | 0.045 | 0.015 |
| Actual value 3 | 0.052 | 0.53 | 1.18 | 0.006 | 0.01 | 0.43 | 4.7 | 0.28 | 0.038 | 0.02 |
The deposited metal mechanical property of embodiment welding rod is in Table 2.
Table 2 deposited metal mechanical property
Through repeatedly actual detection, adopt welding rod deposited metal composition of the present invention and mechanical property to meet the welding requirements of SA517 steel, be a kind of welding rod matching with SA517 steel.
In sum, only, for the present invention's preferred embodiment, with this, do not limit protection scope of the present invention, all equivalences of doing according to the scope of the claims of the present invention and description change and modify, within being all the scope that patent of the present invention contains.
Claims (6)
1. the supporting welding rod of used in nuclear power station steel SA517, by welding rod steel core and coating, formed, welding rod steel core adopts H08GX steel wire, in welding rod manufacturing process, use waterglass as binding agent, adopt existing welding rod production equipment and process method to be prepared from, it is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3 ~ 4, Si-Fe:3 ~ 4, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
2. the supporting welding rod of steel used for containment of nuclear power SA517 according to claim 1, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3, Si-Fe:4, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
3. the supporting welding rod of steel used for containment of nuclear power SA517 according to claim 1, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:4, Si-Fe:3, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
4. the supporting welding rod of steel used for containment of nuclear power SA517 according to claim 1, is characterized in that: the percentage by weight of described electrode coating composition is:
CaCO
3: 18, CaF
2: 43, NaF:2, Mn:3.5, Si-Fe:3.5, Cr:0.8, Mo:1.1, Mg:4.5, Ni:11, all the other are iron powder.
5. according to arbitrary described supporting welding rod of steel used for containment of nuclear power SA517 in claim 1～4, it is characterized in that: the weight of described coating accounts for 40% of welding rod gross weight.
6. according to arbitrary described supporting welding rod of steel used for containment of nuclear power SA517 in claim 1～4, it is characterized in that: in described coating, the granularity control of Mg is at 60～200 orders.
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| CN201310732170.4A CN103659041B (en) | 2013-12-27 | 2013-12-27 | The supporting welding rod of a kind of midium-carbon steel SA517 |
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| CN201310732170.4A CN103659041B (en) | 2013-12-27 | 2013-12-27 | The supporting welding rod of a kind of midium-carbon steel SA517 |
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| CN103659041A true CN103659041A (en) | 2014-03-26 |
| CN103659041B CN103659041B (en) | 2015-12-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923962A (en) * | 2015-06-15 | 2015-09-23 | 赵兰 | Alloy welding rod and manufacturing method thereof |
| CN107470796A (en) * | 2017-09-29 | 2017-12-15 | 四川西冶新材料股份有限公司 | The bridge supporting welding rod of 800MPa level weathering steels and its production method |
| CN108907494A (en) * | 2018-06-01 | 2018-11-30 | 四川大西洋焊接材料股份有限公司 | Nuclear power AG728 steel electrode and preparation method |
| CN111037152A (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 | Welding rod matched with steel for 3Ni-1.6Cr-0.5Mo nuclear power equipment and preparation method thereof |
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| US4782211A (en) * | 1985-12-09 | 1988-11-01 | Weld Mold Company | Method of welding and product obtained therefrom |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923962A (en) * | 2015-06-15 | 2015-09-23 | 赵兰 | Alloy welding rod and manufacturing method thereof |
| CN107470796A (en) * | 2017-09-29 | 2017-12-15 | 四川西冶新材料股份有限公司 | The bridge supporting welding rod of 800MPa level weathering steels and its production method |
| CN107470796B (en) * | 2017-09-29 | 2019-10-11 | 四川西冶新材料股份有限公司 | The bridge mating welding rod of 800MPa grades of weathering steels and its production method |
| CN108907494A (en) * | 2018-06-01 | 2018-11-30 | 四川大西洋焊接材料股份有限公司 | Nuclear power AG728 steel electrode and preparation method |
| CN108907494B (en) * | 2018-06-01 | 2021-01-05 | 四川大西洋焊接材料股份有限公司 | Nuclear power AG728 steel welding rod and preparation method thereof |
| CN111037152A (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 | Welding rod matched with steel for 3Ni-1.6Cr-0.5Mo nuclear power equipment and preparation method thereof |
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|---|---|
| CN103659041B (en) | 2015-12-30 |
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