CN105057916A - Stainless steel flux-cored wire capable of receiving postweld heat treatment - Google Patents
Stainless steel flux-cored wire capable of receiving postweld heat treatment Download PDFInfo
- Publication number
- CN105057916A CN105057916A CN201510457335.0A CN201510457335A CN105057916A CN 105057916 A CN105057916 A CN 105057916A CN 201510457335 A CN201510457335 A CN 201510457335A CN 105057916 A CN105057916 A CN 105057916A
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- CN
- China
- Prior art keywords
- cored wire
- heat treatment
- powder
- welding
- stainless steel
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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
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention provides a stainless steel flux-cored wire capable of receiving postweld heat treatment. 100% CO2 or mixed gas of Ar-CO2 is adopted as protective gas for welding, molten drops are thinner, and a welding joint is better formed. Meanwhile, due to the adoption of oxidizing gas and addition of multiple deoxidizing and denitrifying elements, the purity degree of welding joint metal is greatly increased. The stainless steel flux-cored wire is mainly applied to bead welding of a transition layer of the inner wall of a pressure petrifaction container.
Description
[technical field]
The present invention relates to field of welding material, particularly relate to the stainless flux-cored wire of a kind of energy post weld heat treatment, be specifically related to the E309LT1-1 stainless flux-cored wire of a kind of energy post weld heat treatment.
[background technology]
Known, hydrogenation reactor is the pressure vessel run under hydro condition under high temperature, high pressure, and reactor shell all adopts chrome molybdenum type heat resisting steel usually.Its inner wall overlaying austenitic stainless steel.At present, most of hydrogenation reactor adopts 308L, 316L or 347L type stainless steel to be resurfacing welding material, and 309L is buttering material.Generally adopt high efficiency strip surfacing to carry out at reactor wall, but in joint, flange and place in irregular shape, the general flux-cored wire that adopts carry out built-up welding.Because housing is chrome molybdenum type carbon steel, and overlay cladding is austenitic stainless steel, in order to reduce the welding stress because producing in welding process, generally bulk heat treatmet can be carried out after welding completes, technique is generally 690 DEG C × 22h, and after heat treatment side bend test and Huey test assay all need qualified, to check bond strength and the toughness of resurfacing welding material and primer.This is just for welding material proposes higher requirement.
By patent consulting, still there is no the Patents that can carry out the stainless flux-cored wire of post weld heat treatment at present.
[summary of the invention]
In order to overcome the deficiency existed in background technology, the invention provides the stainless flux-cored wire of a kind of energy post weld heat treatment, the present invention adopts 100%CO
2or Ar-CO
2mist is as Shielding gas, and molten drop is thinner, and appearance of weld is better, and meanwhile, owing to adopting oxidizing gas and adding more deoxidation, denitrogenation element, the degree of purity of weld metal is greatly improved.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A stainless flux-cored wire for energy post weld heat treatment, comprise crust and medicine core powder, described crust is low carbon stainless steel band, and intracutaneous is provided with medicine core powder outside, and in described medicine core powder, each component comprises following composition by mass percentage:
Hafnium metal powfer 10 ~ 12%;
Metal nickel powder 8 ~ 10%;
Electrolytic manganese powder 6 ~ 8%;
Ferrosilicon 1 ~ 3%
TiO
225～30%；
Magnesium powder 0.2 ~ 0.5%;
Quartz 1 ~ 3%;
Zircon sand 8 ~ 10%;
Aluminium oxide 0.5 ~ 0.8%;
Sodium fluoride 1 ~ 3%
Bismuth oxide 0.1 ~ 0.4%;
Arc stabilizer 1.2 ~ 1.3%;
Iron powder 18 ~ 38%.
The stainless flux-cored wire of described energy post weld heat treatment, described TiO
2for any one in ferrotianium or rutile or two kinds of combinations.
The stainless flux-cored wire of described energy post weld heat treatment, described arc stabilizer is Na
2o or K
2o or NaF or K
2siF
6or K
2zrF
6or K
3alF
6in any one or two or more combination.
The stainless flux-cored wire of described energy post weld heat treatment, the filling weight of described medicine core powder accounts for 10 ~ 25% of welding wire gross weight.
Adopt technical scheme as above, there is following beneficial effect:
The stainless flux-cored wire of a kind of energy of the present invention post weld heat treatment, the present invention adopts 100%CO
2or Ar-CO
2mist is as Shielding gas, and molten drop is thinner, and appearance of weld is better, and meanwhile, owing to adopting oxidizing gas and adding more deoxidation, denitrogenation element, the degree of purity of weld metal is greatly improved.The present invention is mainly used in the built-up welding welding of pressure petrochemical industry container inner wall transition zone.
[detailed description of the invention]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
The stainless flux-cored wire of a kind of energy of the present invention post weld heat treatment, comprise crust and medicine core powder, described crust is low carbon stainless steel band, intracutaneous is provided with medicine core powder outside, the filling weight of described medicine core powder accounts for 10 ~ 25% of welding wire gross weight, and in medicine core powder, each component comprises following composition by mass percentage:
Hafnium metal powfer 10 ~ 12%; Metal nickel powder 8 ~ 10%;
Electrolytic manganese powder 6 ~ 8%; Ferrosilicon 1 ~ 3%
TiO
225 ~ 30%; Magnesium powder 0.2 ~ 0.5%;
Quartz 1 ~ 3%; Zircon sand 8 ~ 10%;
Aluminium oxide 0.5 ~ 0.8%; Sodium fluoride 1 ~ 3%
Bismuth oxide 0.1 ~ 0.4%; Arc stabilizer 1.2 ~ 1.3%;
Iron powder 18 ~ 38%.
Wherein said TiO
2for any one in ferrotianium or rutile or two kinds of combinations; Described arc stabilizer is Na
2o or K
2o or NaF or K
2siF
6or K
2zrF
6or K
3alF
6in any one or two or more combination.
In the present invention, the effect of each component is as follows:
Hafnium metal powfer: transition chromium element in welding wire deposited metal.
Metal nickel powder: transition nickel element in welding wire deposited metal.
Electrolytic manganese powder: deoxidation, desulfurization, and to transition manganese element in welding wire deposited metal.Manganese and element silicon (mainly from ferrosilicon) preserve due proportion, can combined deoxidation, form the manganous silicate that fusing point is low, density is little, in molten steel, be in liquid state, easily aggregate into the particle that radius is large, float in slag, reduce the oxygen content in molten steel and weld metal, cleaning molten steel.
Ferrosilicon: silicon is important deoxidant element, also be intensified element simultaneously, a certain amount of silicon has important function for raising intensity and toughness, but excessive silicon can cause siliconising in weld seam serious, impaired low temperature toughness, also weld seam slag can be caused simultaneously too much, in multi-pass welding, easily occur the defect of slag inclusion.Therefore silicone content controls in 1 ~ 3% scope.
Iron powder: iron powder has the effect regulating filling rate and improve welding arc stablility, but excessive iron powder can produce a large amount of splashing.
Deoxidier: ferrotianium, magnesium powder are deoxidation, denitrifier, to ensure the degree of purity of weld(ing) deposit.
Rutile: main slag former, can improve the removability of slag and the Forming Quality of weld metal, appropriate rutile can improve arc stability, but addition too much can reduce arc stability on the contrary.
Zircon sand: main slag former, the physical and chemical performance of adjustment slag, improves the removability of slag of weld metal, improve fusing fusing point, there is chemical change in the zirconium dioxide in zircon sand, cause the change of slag thermal coefficient of expansion in welding process, is also conducive to the de-slag of weld metal.
Quartz: main slag former, increases the acidity of slag, the viscosity of adjustment slag and oxidisability, but addition too much can increase oxide inclusion amount in deposited metal, reduces appearance of weld quality.
Bismuth oxide: the removability of slag improving weld metal is the important component that stainless flux-cored wire improves the removability of slag.
Sodium fluoride: the effect mainly playing stabilising arc.
Aluminium oxide: the effect mainly playing slag making.
Arc stabilizer: Na
2o, K
2o, K
3alF
6etc. having stabilising arc effect, improve welding usability, improve the welding procedure scope forming fine grained transition, therefore addition controls 1.2 ~ 1.3%, if add excessive, then can cause de-slag difficulty.
The present invention has following features:
1, have good welding usability, arc stability during welding, processing ease, appearance of weld is good, and de-slag is easy.
2, after 690 DEG C × 22h heat treatment side bend test and Huey test assay qualified.
3, can be used for all-position welding.
Specific embodiments of the invention are as shown in table 1.
Table 1 embodiment (in raw material, unit is %)
Embodiment effect
Deposited metal mechanical property test is carried out to above-mentioned three kinds of obtained welding wires; test plate (panel) groove, size, sampling method and position are all carried out according to CNS GB/T17853-1999 " stainless flux-cored wire ", and protective gas and the welding conditions of employing are as described below: protective gas adopts 100%CO
2, access DC reverse connection formula power supply carries out welding operation, embodiment 1,2,3 welding current 180A ~ 220A, weldingvoltage 28 ~ 32V.Speed of welding 25 ~ 35cm/min, temperature between the preheating of 150 DEG C and road, heat-treats according to the system of 690 DEG C × 22h after having welded in incubator again.Carry out lateral bend test and Huey test according to CNS " GBT2653-2008 welding point bend test method ", " the corrosion stainless steel intercrystalline corrosion test method of GBT4334-2008 metal and alloy " deposited metal to welding, all meet the demands.
Part not in the detailed description of the invention is prior art.
In order to open object of the present invention and the embodiment selected in this article, currently think to be suitable for.But it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (4)
1. a stainless flux-cored wire for energy post weld heat treatment, is characterized in that: comprise crust and medicine core powder, described crust is low carbon stainless steel band, and intracutaneous is provided with medicine core powder outside, and in described medicine core powder, each component comprises following composition by mass percentage:
Hafnium metal powfer 10 ~ 12%;
Metal nickel powder 8 ~ 10%;
Electrolytic manganese powder 6 ~ 8%;
Ferrosilicon 1 ~ 3%
TiO
225～30%；
Magnesium powder 0.2 ~ 0.5%;
Quartz 1 ~ 3%;
Zircon sand 8 ~ 10%;
Aluminium oxide 0.5 ~ 0.8%;
Sodium fluoride 1 ~ 3%
Bismuth oxide 0.1 ~ 0.4%;
Arc stabilizer 1.2 ~ 1.3%;
Iron powder 18 ~ 38%.
2. the stainless flux-cored wire of energy according to claim 1 post weld heat treatment, is characterized in that: described TiO
2for any one in ferrotianium or rutile or two kinds of combinations.
3. the stainless flux-cored wire of energy according to claim 1 post weld heat treatment, is characterized in that: described arc stabilizer is Na
2o or K
2o or NaF or K
2siF
6or K
2zrF
6or K
3alF
6in any one or two or more combination.
4. the stainless flux-cored wire of energy according to claim 1 post weld heat treatment, is characterized in that: the filling weight of described medicine core powder accounts for 10 ~ 25% of welding wire gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457335.0A CN105057916A (en) | 2015-07-30 | 2015-07-30 | Stainless steel flux-cored wire capable of receiving postweld heat treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457335.0A CN105057916A (en) | 2015-07-30 | 2015-07-30 | Stainless steel flux-cored wire capable of receiving postweld heat treatment |
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| Publication Number | Publication Date |
|---|---|
| CN105057916A true CN105057916A (en) | 2015-11-18 |
Family
ID=54487542
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457335.0A Pending CN105057916A (en) | 2015-07-30 | 2015-07-30 | Stainless steel flux-cored wire capable of receiving postweld heat treatment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877035A (en) * | 2017-11-30 | 2018-04-06 | 桂林航天工业学院 | Stainless flux-cored wire and its production method |
| CN107971653A (en) * | 2017-12-25 | 2018-05-01 | 昆山京群焊材科技有限公司 | One kind is without bismuth stainless flux-cored wire |
| CN108311809A (en) * | 2017-12-22 | 2018-07-24 | 洛阳双瑞特种合金材料有限公司 | A kind of electrode coating, the welding rod with low-crackle sensitive and its preparation and application |
| CN108453415A (en) * | 2017-12-22 | 2018-08-28 | 洛阳双瑞特种合金材料有限公司 | A kind of welding wire medicinal powder, stainless flux-cored wire and the preparation method and application thereof |
| CN108480875A (en) * | 2018-04-26 | 2018-09-04 | 洛阳双瑞特种合金材料有限公司 | A kind of welding wire medicinal powder, flux-cored wire and preparation and application |
| CN108723636A (en) * | 2018-04-26 | 2018-11-02 | 洛阳双瑞特种合金材料有限公司 | Welding wire medicinal powder, flux-cored wire and preparation and application with low-crackle sensitive |
| CN112548400A (en) * | 2021-02-22 | 2021-03-26 | 四川西冶新材料股份有限公司 | Coating and welding rod for welding nickel-chromium-iron alloy steel and preparation method thereof |
| CN114346515A (en) * | 2021-12-30 | 2022-04-15 | 西安理工大学 | Copper-nickel-based welding wire for titanium-steel arc additive transition layer and preparation method thereof |
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| JPH03297570A (en) * | 1990-04-16 | 1991-12-27 | Sumikin Yosetsu Kogyo Kk | Gas shielded arc welding method |
| CN1358605A (en) * | 2001-11-30 | 2002-07-17 | 安泰科技股份有限公司 | Chromium-molybdenum-seel flux welding wire |
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| CN101157169A (en) * | 2006-10-02 | 2008-04-09 | 株式会社神户制钢所 | Filling soldering flux wire for titania gas coverage arc welding |
| CN101164731A (en) * | 2006-10-20 | 2008-04-23 | 基斯韦尔株式会社 | Flux cored wire for duplex stainless steel and method of manufacturing the same |
| CN101244496A (en) * | 2008-03-14 | 2008-08-20 | 武汉铁锚焊接材料股份有限公司 | Chromium-molybdenum-seel flux welding wire for gas shielded arc welding |
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2015
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Patent Citations (6)
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| JPH03297570A (en) * | 1990-04-16 | 1991-12-27 | Sumikin Yosetsu Kogyo Kk | Gas shielded arc welding method |
| CN1358605A (en) * | 2001-11-30 | 2002-07-17 | 安泰科技股份有限公司 | Chromium-molybdenum-seel flux welding wire |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877035A (en) * | 2017-11-30 | 2018-04-06 | 桂林航天工业学院 | Stainless flux-cored wire and its production method |
| CN107877035B (en) * | 2017-11-30 | 2020-02-04 | 桂林航天工业学院 | Stainless steel flux-cored wire and production method thereof |
| CN108311809A (en) * | 2017-12-22 | 2018-07-24 | 洛阳双瑞特种合金材料有限公司 | A kind of electrode coating, the welding rod with low-crackle sensitive and its preparation and application |
| CN108453415A (en) * | 2017-12-22 | 2018-08-28 | 洛阳双瑞特种合金材料有限公司 | A kind of welding wire medicinal powder, stainless flux-cored wire and the preparation method and application thereof |
| CN108453415B (en) * | 2017-12-22 | 2020-06-30 | 洛阳双瑞特种合金材料有限公司 | Welding wire powder, stainless steel flux-cored wire, and preparation method and application thereof |
| CN107971653A (en) * | 2017-12-25 | 2018-05-01 | 昆山京群焊材科技有限公司 | One kind is without bismuth stainless flux-cored wire |
| CN108480875A (en) * | 2018-04-26 | 2018-09-04 | 洛阳双瑞特种合金材料有限公司 | A kind of welding wire medicinal powder, flux-cored wire and preparation and application |
| CN108723636A (en) * | 2018-04-26 | 2018-11-02 | 洛阳双瑞特种合金材料有限公司 | Welding wire medicinal powder, flux-cored wire and preparation and application with low-crackle sensitive |
| CN108723636B (en) * | 2018-04-26 | 2020-06-30 | 洛阳双瑞特种合金材料有限公司 | Welding wire powder with low crack sensitivity, flux-cored wire, preparation and application |
| CN112548400A (en) * | 2021-02-22 | 2021-03-26 | 四川西冶新材料股份有限公司 | Coating and welding rod for welding nickel-chromium-iron alloy steel and preparation method thereof |
| CN114346515A (en) * | 2021-12-30 | 2022-04-15 | 西安理工大学 | Copper-nickel-based welding wire for titanium-steel arc additive transition layer and preparation method thereof |
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Application publication date: 20151118 |