CN103394822A - Sintered flux for submerged-arc welding for nickel-based alloy - Google Patents
Sintered flux for submerged-arc welding for nickel-based alloy Download PDFInfo
- Publication number
- CN103394822A CN103394822A CN2013103022347A CN201310302234A CN103394822A CN 103394822 A CN103394822 A CN 103394822A CN 2013103022347 A CN2013103022347 A CN 2013103022347A CN 201310302234 A CN201310302234 A CN 201310302234A CN 103394822 A CN103394822 A CN 103394822A
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- Prior art keywords
- nickel
- sintered flux
- welding
- flux
- submerged
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Links
- 230000004907 flux Effects 0.000 title claims abstract description 39
- 238000003466 welding Methods 0.000 title claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 15
- 239000000956 alloy Substances 0.000 title claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 11
- 229910052759 nickel Inorganic materials 0.000 title abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims description 15
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 21
- 229910052751 metal Inorganic materials 0.000 description 21
- 230000000694 effects Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses sintered flux for submerged-arc welding for nickel-based alloy, and belongs to the technical field of welding materials. The sintered flux comprises, by weight, 25-35% of CaF<2>, 10-20% of MgO, 30-40% of Al<2>O<3>, 5-10% of CaCO<3>, 3-8% of Ti and 3-8% of Mn. The sintered flux has the advantages of stable electric arcs, easiness in removing slag, attractive formed welding seams, smooth transition and capability of overcoming shortcomings such as welding cracks and the like in a welding procedure.
Description
Technical field
The present invention relates to a kind of nickel-base alloy submerged arc welding sintered flux, belong to technical field of welding materials.Described solder flux is applicable to petrochemical industry, metallurgy, atomic energy, ocean development, aviation, the submerged arc welding of the industry nickel-base alloy structural members such as space flight.
Background technology
Nickel-base alloy (Ni 〉=55%) is important structural material, the responsive especially and energy dissolved gas to harmful components, and weld more difficult: on the one hand, liquid nickel can dissolve O in a large number
2, H
2, and CO gas, and in condensation phase solubility, sharply descend, cause pore and hydrogen embrittlement, and the oxidation meeting of nickel forms the Ni-NiO low-melting-point eutectic during due to welding, these low-melting-point eutectics are distributed on crystal boundary when crystallization, fragility easily occurs; On the other hand, Ni and S and P have very strong chemical affinity, and the very easy low melting point eutectic compound that forms on thick crystal boundary, reduce weld strength and cause solidification cracking.
In general extensive employing Lincoln weld nickel-base alloy, the Lincoln weld thermal source is concentrated, and the metallurgical reaction by metal and slag can make molten pool metal reach refining, deoxidation and degenerative treatments, makes the metal chemical composition homogeneous.Improve because the static pressure effect of welding flux layer makes appearance of weld, the skull of formation can protect molten bath to avoid being subject to the infringement of airborne oxygen and other gases.It is fully inapplicable that the fysed fluxes such as employing general " 150 ", " 431 " commonly used, " 430 ", " 433 " carry out the submerged arc welding nickel-base alloy.Although appearance of weld is good, take off slag easy, the gained weld seam is prone to pore, defects i.e.cracks.And the weld metal that adopts these solder flux gained has thick as-cast structure, and grain orientation is very strong, at crystal boundary, thicker low melting point eutectic film is arranged, and causes weld strength, plasticity to descend.
Sintered flux is compared with fysed flux, has easy to manufacturely, and it is low that energy consumes, and environmental pollution is little, and the weld seam chemical composition is easy to the characteristics such as adjustment.Meanwhile, apply the effective of the resulting weld metal alloying of sintered flux submerged-arc welding method, its combination property can be effectively guaranteed.For this reason, research and develop out a kind of nickel-base alloy submerged arc welding sintered flux that is applicable to, to guarantee weld metal, obtain refining, have except S, P effect, prevent the generation of defects i.e.cracks, just become expectation in the industry.
Summary of the invention
The technical problem that the present invention solves is, develop a kind ofly to have that welding process is stablized, strong, the anti-weld crack performance of deoxidation is strong and the nickel-base alloy submerged arc welding slag system of the advantage such as appearance of weld is good is CaF
2-CaO-Al
2O
3Sintered flux, to meet the growing needs of manufacturing industry.
The present invention realizes that the strategy of its purpose is: according to the weld characteristics of nickel-base alloy bare welding filler metal,, guarantee to improve the basicity of solder flux under the good condition of welding procedure as far as possible, make it possess strong deoxidizing capacity, and effectively remove S, P, fully guarantee the mechanical performance of weld metal.
Technical scheme of the present invention is, with CaF
2, MgO, Al
2O
3, CaCO
3For the key component of solder flux, the basicity by adjusting slag, viscosity, surface tension etc. are improved the processing performance of solder flux and the anti-crack ability of weld metal.Increase simultaneously a small amount of Ti and Mn,, fully to get rid of the oxygen in weld seam, slough S, P impurity element, increase the mechanical performance of weld metal.
The component of sintered flux of the present invention and the weight percentage of each component be,
CaF
2 ：25～35%，MgO：10～20%，Al
2O
3 ：30～40%，CaCO
3 ：5～10%，Ti ： 3～8%，Mn：3～8%。
Restriction to the various components of the present invention be the reasons are as follows:
CaF
2: be mainly used in doing slag former, desulfurization and dehydrogenation composition.CaF
2Molten point is lower, and is more active under high temperature action, energy and SiO
2Reaction generates SiF
4Gas, these gases can be got rid of the hydrogen of arc region, prevent that hydrogen is dissolved in metal, reduce the chance that produces pore.Because fusing point is low, slag is played diluting effect, can reduce the slag fusing point.CaF in solder flux
2When too high, the F of ionization gained
-Ion is very easily captured the electronics in electric arc, the stability of welding arc is reduced, thereby cause surfacing layer metal shaping variation.The present invention is with CaF for this reason
2Content be limited between 30～40%.
MgO: as slag former.It can improve the basicity of slag and improve the slag covering and the surfacing layer metal shaping.The fusing point of MgO is very high, has improved the viscosity of molten slag, has suppressed the mobility of slag.MgO has the capillary effect of the slag of increase.In order to guarantee that sintered flux has higher fusing point and basicity, the present invention is limited to the content of MgO between 10～20% for this reason.
Al
2O
3: as slag former.It has good chemical stability, and molten point is higher, as itself and CaF
2, when CaO coexists, can improve the desulphurizing ability of solder flux, in solder flux along with Al
2O
3The raising of content, take off slag more easily, Al
2O
3Add and can replace part SiO
2, the oxidisability of reduction solder flux, too much Al
2O
3Will increase molten point and the viscosity of slag.The present invention is with Al for this reason
2O
3Content be limited to 30～50%.
CaCO
3: as gas-forming agent, slag former.CaCO
3Resolve into CaO and CO under the welding high temperature action
2CaO is stronger basic anhydride, and is stronger to the binding ability of S, P, can reduce S, P content in weld metal.The CO that decomposes
2Gas, play deaeration protection molten bath effect.CaCO
3During too high levels, the CO of decomposition
2Increase, destroy arc stability, affect appearance of weld.CaCO
3When content is too low, do not reach the protection effect, easily reduce the deposited metal degree of purity.The present invention is with CaCO for this reason
3Content be limited to 5～10%.
Ti: strong deoxidier, the oxide of Ti is easy to from metal to the molten slag transition, and the strong crystal grain thinning of energy, improves the brilliant crackle ability of resistive connection of weld metal.In the present invention the content of Ti is limited to 3～8%.
Mn: deoxidier, the S of taking off, P effect are arranged, can form continuous solid solution in nickel, can also reinforced metal under the higher condition of palsticity of maintenance.In the present invention the content of Mn is limited to 3～8%.
Basicity is calculated the B that adopts International Institute of Welding to recommend
II WFormula (molecular formula with material in formula represents its mass fraction):
B
ⅡW＝[CaO+MgO+K
2O+Na
2O+ CaF
2+BaO+0.5（MnO+FeO）]/[ SiO
2+0.5（TiO
2+ZrO
2+ Al
2O
3 ）]
The basicity of this formula of the present invention is 2.0～3.0, is alkalescent sintered flux.
The specific embodiment
According to design component content of the present invention, preparation solder flux powder, this solder flux adopts common sintered flux preparation method, that is: the powder that described component is formed is dry mixed, wet mixing, granulating, low temperature drying, high temperature sintering, sieve etc. and to produce described sintered flux, and the particle diameter of its manufactured goods is in φ 0.5～5mm scope.Consider the resolution characteristic of carbonate, sintering temperature is controlled in 600～800 ℃ of scopes, and its constituent is in Table 1.
The concrete composition (by weight percentage) of table 1 solder flux
| CaF 2 | MgO | Al 2O 3 | CaCO 3 | Ti | Mn |
| 35 | 15 | 34 | 6 | 5 | 5 |
The solder flux of developing and diameter are the compatibility test of 3.2mm nickel-base alloy welding wire for submerged-arc welding, adopt MZ-1000 type dc automatic submerged-arc, and test piece for welding is the thick nickel-clad steel plate of 10mm, carries out the chemical composition analysis of cladding weld metal in Table 2.
Table 2 deposited metals main chemical compositions (wt%)
| C | Mn | Cr | Ni | Ti | Fe | |
| Embodiment 1 | 0.04 | 0.78 | 13.8 | 68.6 | 0.6 | 8.0 |
Above-mentioned example solder flux arc stability in welding process, the removability of slag is good, is shaped attractive in appearance, is combined with base metals well, through ultrasound examination, flawless, pore in weld metal, the defect such as is mingled with.Sintered flux of the present invention is joined the nickel-base alloy submerged arc welding and is had good metallurgical performance, and alloy content is high, has good serviceability.
Claims (3)
1. a nickel-base alloy submerged arc welding sintered flux, is characterized in that, the component of described sintered flux and the weight percentage of each component are:
CaF
2 25～35%
MgO 10～20%
Al
2O
3 30～40%
CaCO
3 5～10%
Ti 3～8%
Mn 3～8% 。
2. sintered flux according to claim 1, is characterized in that, its basicity is 2.0～3.0, is alkalescent sintered flux.
3. sintered flux according to claim 1 and 2, is characterized in that, described solder flux is graininess, and its particle diameter is in φ 0.5～5mm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310302234.7A CN103394822B (en) | 2013-07-19 | 2013-07-19 | Nickel-base alloy submerged arc welding sintered flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310302234.7A CN103394822B (en) | 2013-07-19 | 2013-07-19 | Nickel-base alloy submerged arc welding sintered flux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103394822A true CN103394822A (en) | 2013-11-20 |
| CN103394822B CN103394822B (en) | 2015-08-26 |
Family
ID=49558646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310302234.7A Expired - Fee Related CN103394822B (en) | 2013-07-19 | 2013-07-19 | Nickel-base alloy submerged arc welding sintered flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103394822B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668816A (en) * | 2015-01-09 | 2015-06-03 | 天津重型装备工程研究有限公司 | Submerged-arc welding flux for low-alloy-steel narrow-gap welding and preparation method thereof |
| CN105195924A (en) * | 2015-09-25 | 2015-12-30 | 机械科学研究院哈尔滨焊接研究所 | Nickel baseband pole electroslag surfacing sintering flux and preparation method |
| CN105252172A (en) * | 2015-09-28 | 2016-01-20 | 洛阳双瑞特种合金材料有限公司 | Preparation method for sintered flux used for nickel base strip electrode submerged arc surfacing |
| TWI573654B (en) * | 2015-12-16 | 2017-03-11 | 國立屏東科技大學 | Welding flux for austenitic stainless steel |
| CN106514054A (en) * | 2016-11-29 | 2017-03-22 | 洛阳双瑞特种合金材料有限公司 | Sintered flux for band electrode submerged arc surfacing of nickel-based 625 alloy and preparation method of sintered flux |
| CN111037156A (en) * | 2019-12-24 | 2020-04-21 | 胡隆燕 | Preparation method of regulating particles for sintered flux |
| 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 |
| CN113319470A (en) * | 2021-06-21 | 2021-08-31 | 中国船舶重工集团公司第七二五研究所 | Bonding flux capable of transferring alloy elements and used for nickel-based welding wire and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551137A (en) * | 1968-01-10 | 1970-12-29 | Electro Slag Inst | Flux for electroslag consumable remelting of nickel base super alloys and certain iron base alloys |
| JPS5653474B2 (en) * | 1976-06-21 | 1981-12-18 | ||
| JPS5964193A (en) * | 1982-10-01 | 1984-04-12 | Naisu Kk | Flux for belt-like electrode |
| JP3458452B2 (en) * | 1994-06-06 | 2003-10-20 | Ｊｆｅスチール株式会社 | High heat input latent arc welding method for thick steel plate with excellent toughness of weld metal |
| CN101564804A (en) * | 2009-06-05 | 2009-10-28 | 中国船舶重工集团公司第七二五研究所 | Hard surfacing sintered flux and manufacturing method thereof |
| CN101804525A (en) * | 2010-03-25 | 2010-08-18 | 河海大学常州校区 | Sintered flux for submerged arc welding of FCW with martensitic stainless steel hard surface |
-
2013
- 2013-07-19 CN CN201310302234.7A patent/CN103394822B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551137A (en) * | 1968-01-10 | 1970-12-29 | Electro Slag Inst | Flux for electroslag consumable remelting of nickel base super alloys and certain iron base alloys |
| JPS5653474B2 (en) * | 1976-06-21 | 1981-12-18 | ||
| JPS5964193A (en) * | 1982-10-01 | 1984-04-12 | Naisu Kk | Flux for belt-like electrode |
| JP3458452B2 (en) * | 1994-06-06 | 2003-10-20 | Ｊｆｅスチール株式会社 | High heat input latent arc welding method for thick steel plate with excellent toughness of weld metal |
| CN101564804A (en) * | 2009-06-05 | 2009-10-28 | 中国船舶重工集团公司第七二五研究所 | Hard surfacing sintered flux and manufacturing method thereof |
| CN101804525A (en) * | 2010-03-25 | 2010-08-18 | 河海大学常州校区 | Sintered flux for submerged arc welding of FCW with martensitic stainless steel hard surface |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668816A (en) * | 2015-01-09 | 2015-06-03 | 天津重型装备工程研究有限公司 | Submerged-arc welding flux for low-alloy-steel narrow-gap welding and preparation method thereof |
| CN104668816B (en) * | 2015-01-09 | 2017-01-11 | 天津重型装备工程研究有限公司 | Submerged-arc welding flux for low-alloy-steel narrow-gap welding and preparation method thereof |
| CN105195924A (en) * | 2015-09-25 | 2015-12-30 | 机械科学研究院哈尔滨焊接研究所 | Nickel baseband pole electroslag surfacing sintering flux and preparation method |
| CN105252172A (en) * | 2015-09-28 | 2016-01-20 | 洛阳双瑞特种合金材料有限公司 | Preparation method for sintered flux used for nickel base strip electrode submerged arc surfacing |
| TWI573654B (en) * | 2015-12-16 | 2017-03-11 | 國立屏東科技大學 | Welding flux for austenitic stainless steel |
| CN106514054A (en) * | 2016-11-29 | 2017-03-22 | 洛阳双瑞特种合金材料有限公司 | Sintered flux for band electrode submerged arc surfacing of nickel-based 625 alloy and preparation method of sintered flux |
| CN111037156A (en) * | 2019-12-24 | 2020-04-21 | 胡隆燕 | Preparation method of regulating particles for sintered flux |
| 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 |
| CN113319470A (en) * | 2021-06-21 | 2021-08-31 | 中国船舶重工集团公司第七二五研究所 | Bonding flux capable of transferring alloy elements and used for nickel-based welding wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394822B (en) | 2015-08-26 |
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Granted publication date: 20150826 |