CN103706960B - The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control - Google Patents
The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control Download PDFInfo
- Publication number
- CN103706960B CN103706960B CN201310676373.6A CN201310676373A CN103706960B CN 103706960 B CN103706960 B CN 103706960B CN 201310676373 A CN201310676373 A CN 201310676373A CN 103706960 B CN103706960 B CN 103706960B
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- stress
- core wire
- removal
- medicinal powder
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
- B23K35/3601—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
- B23K35/3608—Titania or titanates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses the heat treated stainless steel electrode of the ferritic stress-removal of a kind of control, belong to field of welding material.Be made up of core wire and the medicinal powder wrapped in core wire surface, its traditional Chinese medicine powder weight is the 35-45% of core wire weight, and medicinal powder weight ratio of constituents is: rutile 12-14%, marble 2.5-4.5%, dolomite 1-2%, potassic feldspar 2-3.5%, crome metal 8-10%, electrolytic manganese 1-1.5%, mica 1-2.5%, soda ash 0.16-0.24%, nickel powder 2.5-4.5%, nitrided ferro-chromium 0.4-1.2%.Core wire comprises following composition: carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, and its surplus is Fe and impurity.Beneficial effect of the present invention is: in welding rod, ferrite content is suitable for, and weld metal ferrite content is within 12%; After stress-removal heat treatment, weld metal has excellent mechanical property, and weld metal tensile strength can reach 520Mpa, and elongation after fracture can reach 30%, and V-type ballistic work mean value is 60J, meets completely needed for engineering.
Description
Technical field
The present invention relates to field of welding material, especially a kind of for nuclear power main equipment dissimilar steel transition zone bead-welding technology, by controlling ferrite content, the heat treated stainless steel electrode of stress-removal is carried out to deposited metal.
Background technology
According to the experience and lessons of the second generation nuclear power plant accidents such as U.S.'s Three Mile Island Nuclear Station and Chernobyl Plant, the designing technique basis at US and European nuclear electric company specification generation Ⅲ nuclear power station, proposes very strict requirement to advanced light water reactor ALWR.Such as: non-active AP1000 type nuclear power is existing the safest, most advanced in world market, uniquely obtains the new three generations of U.S.'s core pipe meeting (FDA) final design approval
+nuclear power station.The nuclear island primary device design work temperature 323.9 DEG C (actual feed temperature is 226.7 DEG C) of AP1000 type and steam generator design pressure are 8.27MPa, have at least 72 hours, do not need operator intervention; Under severe accident conditions, containment has the technical characterstics such as enough design capacities.Along with the fast development of China's economy, increasing to clean energy resource demand, as the nuclear energy of clean energy resource and the needs of national nuclear strategy, introducing digestion nuclear power station is inexorable trend.Along with the application of third and fourth Nationalization of Nuclear Power Equipment, research and development and the application of nuclear power welding material have also been driven in generation.In this context, have developed stainless steel E309L-16 welding rod, mainly as the built-up welding welding material of the nuclear island primary device dissimilar steel transition zone of generation Ⅲ nuclear power, also can as the transition zone built-up welding wlding of the equipment such as synthetic fibers, petrochemical industry.
Set out based on nuclear island primary device security, propose higher technical requirement to the stainless steel E309L-16 welding rod of nuclear island primary device transition zone, namely weld seam is after 610 DEG C × 16h, 610 DEG C × 40h heat treatment, should have excellent mechanical property.The number of deposited metal ferrite content is very large to the Effect on Mechanical Properties after its heat treatment, so, be used on nuclear island primary device for this wlding, emphasis with the deposited metal of the heat treatment state of stainless steel E309L-16 welding rod for research object, when as-welded lower deposited metal ferrite content is respectively 16.4%, 12%, 10.4% and 8%, through 610 DEG C × 40h heat treatment and after extending heat treatment time, adopt conventional mechanical property test and organize micro-analysis, its mechanical property of overall merit, the transition zone for nuclear island primary device selects welding material to provide test basis.
Along with deposited metal ferrite content is higher, deposited metal is after 610 DEG C × 40h heat treatment, and tensile strength and yield strength have the trend increased, but increases not obvious.Percentage elongation and impact absorbing energy have the trend of reduction.When as-welded deposited metal ferrite content is more than 12.0%, after 610 DEG C × 40h heat treatment, impact absorbing energy significantly reduces.
The deposited metal of different ferrite content is after 610 DEG C × 40h heat treatment, tensile strength is slightly higher than as-welded deposited metal tensile strength, and all increase with as-welded deposited metal ferrite content, and slightly increase, yield strength is starkly lower than as-welded deposited metal yield strength, and all increases with as-welded deposited metal ferrite content and increase.
Ferrite content is 16.4% time, and the deposited metal impact absorbing energy of 610 DEG C × 40h heat treatment state is starkly lower than as-welded deposited metal impact absorbing energy.Ferrite content≤12.0% time, 610 DEG C × 40h heat treatment state and as-welded not remarkable to deposited metal impact absorbing energy affect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of stainless steel electrode, by the accurate control to deposited metal harmful chemicals element, microalloy and deposited metal ferrite content, after stress-removal heat treatment, the physical and chemical index of deposited metal reaches designing requirement.
For solving the problems of the technologies described above, technical scheme of the present invention is: the heat treated stainless steel electrode of the ferritic stress-removal of a kind of control, wrap up stainless steel core wire after adopting waterglass mixed powder to form, described medicinal powder constituent is by weight percentage: rutile 12-14%, marble 2.5-4.5%, dolomite 1-2%, potassic feldspar 2-3.5%, crome metal 8-10%, electrolytic manganese 1-1.5%, mica 1-2.5%, soda ash 0.16-0.24%, nickel powder 2.5-4.5%, nitrided ferro-chromium 0.4-1.2%.Described stainless steel core wire constituent is by weight percentage: carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, other≤0.5%.
As preferably, the percentage by weight that described medicinal powder accounts for stainless steel core wire is 35%-49%.
As preferably, described stainless steel electrode diameter is 6.8mm.
As preferably, described medicinal powder constituent is by weight percentage:
Rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.5%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.4%.
As preferably, described medicinal powder constituent is by weight percentage:
Rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.4%.
As preferably, described medicinal powder constituent is by weight percentage:
Rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.48%.
As preferably, also contain waterglass in described medicinal powder, and waterglass weight ratio is the 18-20% of medicinal powder gross weight; The modulus of described waterglass is 3.1 and concentration is 37-39 Baume degrees.
The principle of the invention is: in stainless steel electrode, various metal and nonmetalloid are on ferritic impact.
C, N make ferrite in welding rod weld seam reduce.C is strong formation and stable austenite and expand austenitic element in austenitic stainless steel, and C is a kind of interstitial element, can be significantly improved the intensity of austenitic stainless steel by solution strengthening.But under certain conditions (as welding or through 450-850 DEG C of heating), C can form Cr with the Cr in steel
23c
6type carbide, thus the dilution causing local chromium, intergranular corrosion resistance performance is declined to a great extent, and particularly after heat treatment, the plasticity and toughness of weld seam can reduce, and even there will be brittle failure phenomenon.Weld seam C content is mainly controlled from the composition of core wire and coating paint.This welding rod belongs to core level material in addition, and the percentage composition of C also just must control at reduced levels.The C content of core wire controls very crucial, when C element content lower than 0.03% time, stainless anti intercrystalline corrosion ability reaches best, and has good plasticity and toughness.The C of certain core wire is more low better, but due to the restriction of current domestic smelting level, C can only be controlled as far as possible at reduced levels (less than 0.015%).The advantageous effect of N shows as: N strongly is formed and stable austenite and expand austenite phase field, improves the anti-hydrogen embrittlement ability of austenitic steel.Appropriate nitrogen content, as-welded and weld seam that is heat treatment state all has good mechanical property.But excessive N can bring the adverse effects such as pore, segregation and fragility nitride, and when nitrogen major part is dissolved in austenite crystal, can reduce the ferrite content of weld metal, and when ferrite is lower than a certain limiting value, weld seam will crack and brittle failure.Therefore wlding design should be considered arc atmosphere nitrogen is reduced, and reduces the N content in welding bath as far as possible.
S, P make the stability of Weld Performance reduce, the illeffects of S mainly reduces the thermoplasticity of austenitic stainless steel, this is relevant along grain boundary precipitate with high temperature FeMnS or (Fe, Mn) S, S reduces the corrosion resistance of austenitic stainless steel simultaneously, this MnS mainly formed is meltable in acidic chloride solution, often becoming source of corrosion causes resistance to spot corrosion and crevice corrosion behavior significantly to reduce, and high sulfur content and nickel etc. form low-melting-point material, easily cause weld cracking; P is the harmful element in stainless steel, phosphorus to stainless main harm be degrading the anti-stress-corrosion crack sensitiveness of steel and anti-corrosion due to welding anti-thread breakage, this is relevant along Grain Boundary Segregation with phosphorus.Therefore, the content of control S, P is also a kind of method improving weld seam cracking resistance.
Si can improve weld metal non-oxidizability, strengthens stress corrosion resistant ability.
Mn adds in electrode coating mainly as deoxidier and alloying constituent, and they exist with the form of solid solution in weld metal.Mn can expand austenite phase field, postpones the transformation of γ-α.In welding process, release a large amount of heat energy during manganese oxidation, improve bath temperature, be conducive to metallurgical reaction.Add appropriate ferromanganese and there is the effect accelerating welding reaction speed, improve molten bath mobility, and strengthen weld metal heat crack resistance.
Cr is the main alloying element of austenitic stainless steel, and it is the ferrite former of steel grade.What Cr had the greatest impact to performance of austenitic stainless steel is corrosion resisting property.
Ni is the main austenite former of austenitic stainless steel, makes steel have good plasticity and toughness and low-temperature flexibility, and has excellent cold and hot working processing performance and welding performance.
Mo is carbide, conventional to improve weld strength and to improve toughness, has precipitation strength effect significantly; Mo-Cu appropriate in weld metal coordinates can strengthen the anti-spot corrosion of weld metal and anti-organic acid ability.Therefore, under the prerequisite meeting mechanical property, Mo, Cu are controlled in the scope of standard-required.
Ti is carbide, is remarkable reinforced ferrite element, can improve weld seam anti intercrystalline corrosion ability.Adding of Ti both can improve welding seam toughness by crystal grain thinning, can be solid-solution in ferritic embrittling effect again, offset the Beneficial Effect of crystal grain thinning butt welded seam toughness, so answer the content of conservative control Ti in weld metal because of it.
Co with Ni, Mn are the same, and iron forms solid solution.Co element can strengthen the matrix of steel, too high levels in weld metal, Resistance of Weld Metal plasticity and impact flexibility unfavorable, should strictly control.
Delta ferrite is when in austenitic stainless steel, ferrite content (>12%) is too high, after stress-removal heat treatment, the transformation of δ → σ by highly significant, namely ferritic transformation be brittlement phase by highly significant, cause plasticity and toughness be deteriorated or even there is brittle failure phenomenon.
Beneficial effect of the present invention: deposited metal after welding with welding rod of the present invention: room temperature impact merit >=50J after tensile strength >=520Mpa, yield strength >=345Mpa, percentage elongation >=30%, room temperature impact merit >=50J, heat treatment, effectively improve weld seam overall performance, solve the problem of weld metal Toughness deficiency; And all-position welding processing performance is good, arc stability, splash that little, de-slag is easy, appearance of weld is attractive in appearance, all positon operability is good.Welding rod production technology of the present invention is simple, alloy system is reasonable in design, and welding rod integrated cost is low.The present invention has a certain proportion of slag former, gas-forming agent, de-slag agent and arc stabilizer, thus ensures that weld seam has good mechanical performance, and arc stability burning, splashing, little, de-slag is easy, appearance of weld, all positon operability are good.Be particularly suitable for the built-up welding welding material of the nuclear island primary device dissimilar steel transition zone being applied in generation Ⅲ nuclear power, and the transition zone built-up welding field of the equipment such as synthetic fibers, petrochemical industry.
Detailed description of the invention
Following non-limiting examples is used for illustrating the present invention.
Embodiment 1
Select diameter to be the core wire of 4.0mm, its chemical composition carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, other≤0.5%.Medicinal powder accounts for 40% of core wire weight, and medicinal powder composition percentage by weight is wherein rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.5%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.48%.Added in above-mentioned medicinal powder by potassium-sodium water glass containing medicinal powder gross weight 18-20%, mix, with hydraulic press extrusion on core wire, stainless steel electrode dried naturally through 24 hours, then dried and formed.
Welding parameter: I=140A, U=20-30V, speed of welding 15-20cm/min, post weld heat treatment: 615 DEG C × 40h
Its deposited metal composition and ferrite content (wt-%) are as following table:
| C | Mn | Si | S | P | Cr | Ni | Mo |
| 0.018 | 0.87 | 0.53 | 0.011 | 0.0087 | 22.76 | 12.50 | 0.02 |
| N | Co | Cu | V | Nb+Ta | Ti | δ | |
| 0.059 | 0.0085 | 0.0030 | 0.038 | 0.032 | 0.0095 | 10.2 |
Its deposited metal mechanical performance is as following table:
| State | Tensile strength | Yield strength | Percentage elongation | Ballistic work Kv2 |
| Rm（MPa） | Rp0.2（MPa） | A（%） | Room temperature (J) | |
| As-welded | 533 | 449 | 39 | 63 |
| 615℃×40h | 545 | 387 | 37 | 62 |
Embodiment 2
Select diameter to be the core wire of 4.0mm, its chemical composition carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, other≤0.5%.Medicinal powder accounts for 40% of core wire weight, and medicinal powder composition percentage by weight is wherein rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.48%.Added in above-mentioned medicinal powder by potassium-sodium water glass containing medicinal powder gross weight 18-20%, mix, with hydraulic press extrusion on core wire, stainless steel electrode dried naturally through 24 hours, then dried and formed.
Welding parameter: I=140A, U=20-30V, speed of welding 15-20cm/min, post weld heat treatment: 615 DEG C × 40h
Its deposited metal composition and ferrite content (wt-%) are as following table:
| C | Mn | Si | S | P | Cr | Ni | Mo |
| 0.020 | 0.88 | 0.53 | 0.010 | 0.0092 | 22.95 | 12.53 | 0.018 |
| N | Co | Cu | V | Nb+Ta | Ti | δ | |
| 0.051 | 0.010 | 0.0032 | 0.040 | 0.040 | 0.011 | 11 |
Its deposited metal mechanical performance is as following table:
Embodiment 3
Select diameter to be the core wire of 4.0mm, its chemical composition carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, other≤0.5%.Medicinal powder accounts for 40% of core wire weight, and medicinal powder composition percentage by weight is wherein rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.4%.Added in above-mentioned medicinal powder by potassium-sodium water glass containing medicinal powder gross weight 18-20%, mix, with hydraulic press extrusion on core wire, stainless steel electrode dried naturally through 24 hours, then dried and formed.
Welding parameter: I=140A, U=20-30V, speed of welding 15-20cm/min, post weld heat treatment: 615 DEG C × 40h
Its deposited metal composition and ferrite content (wt-%) are as following table:
| C | Mn | Si | S | P | Cr | Ni | Mo |
| 0.019 | 0.97 | 0.55 | 0.0095 | 0.0079 | 23.02 | 12.48 | 0.019 |
| N | Co | Cu | V | Nb+Ta | Ti | δ | |
| 0.045 | 0.095 | 0.0036 | 0.039 | 0.039 | 0.012 | 12 |
Its deposited metal mechanical performance is as following table:
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the heat treated stainless steel electrode of the ferritic stress-removal of control, be made up of core wire and the medicinal powder wrapped in core wire surface, it is characterized in that: the percentage by weight that described medicinal powder accounts for core wire is 35%-44.74%, and described medicinal powder constituent is by weight percentage: rutile 12-14%, marble 2.5-4.5%, dolomite 1-2%, potassic feldspar 2-3.5%, crome metal 8-10%, electrolytic manganese 1-1.5%, mica 1-2.5%, soda ash 0.16-0.24%, nickel powder 2.5-4.5%, nitrided ferro-chromium 0.4-2%; Described core wire constituent is by weight percentage: carbon≤0.015%, chromium 19.5-20.0%, nickel 9.6-10.6%, molybdenum≤0.20%, manganese 1.5-2.5%, silicon≤0.30%, phosphorus≤0.010%, sulphur≤0.003%, nitrogen≤0.025%, copper≤0.010%, cobalt≤0.020%, vanadium≤0.080%, other≤0.5%.
2. the heat treated stainless steel electrode of the one ferritic stress-removal of control according to claim 1, is characterized in that: described electrode size is 4.0mm, stainless steel electrode diameter is 6.4-6.8mm.
3. the heat treated stainless steel electrode of the one ferritic stress-removal of control according to claim 1, is characterized in that: described medicinal powder constituent is by weight percentage: rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.5%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.4%.
4. the heat treated stainless steel electrode of the one ferritic stress-removal of control according to claim 1, is characterized in that: described medicinal powder constituent is by weight percentage: rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.4%.
5. the heat treated stainless steel electrode of the one ferritic stress-removal of control according to claim 1, is characterized in that described medicinal powder constituent is by weight percentage: rutile 13.5%, marble 4.2%, dolomite 1.5%, potassic feldspar 3%, crome metal 9.8%, electrolytic manganese 1.2%, mica 2%, nickel powder 4%, nitrided ferro-chromium 0.48%.
6. the heat treated stainless steel electrode of the one ferritic stress-removal of control according to claim 1, is characterized in that: also containing waterglass in described medicinal powder, and waterglass weight ratio is the 18-20% of medicinal powder gross weight; The modulus of described waterglass is 3.1 and concentration is 37-39 Baume degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676373.6A CN103706960B (en) | 2013-12-11 | 2013-12-11 | The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676373.6A CN103706960B (en) | 2013-12-11 | 2013-12-11 | The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103706960A CN103706960A (en) | 2014-04-09 |
| CN103706960B true CN103706960B (en) | 2016-02-10 |
Family
ID=50400506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310676373.6A Active CN103706960B (en) | 2013-12-11 | 2013-12-11 | The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103706960B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175018B (en) * | 2014-08-20 | 2016-06-08 | 四川大西洋焊接材料股份有限公司 | For double-phase stainless steel electric welding bar and the production method thereof of three generations's nuclear power generating equipment |
| CN104475922A (en) * | 2014-12-17 | 2015-04-01 | 上海锐迈重工有限公司 | Technological method for controlling content of ferrite in austenitic stainless steel surfacing layer |
| CN106181093A (en) * | 2016-08-23 | 2016-12-07 | 山西阳煤化工机械（集团）有限公司 | A kind of rustless steel adapter D class welding point exempt from heat treatment welding method |
| CN106312242B (en) * | 2016-10-21 | 2018-06-05 | 中国化学工程第六建设有限公司 | The welding method of 12Cr5Mo martensitic stain less steels |
| CN107081538A (en) * | 2017-05-12 | 2017-08-22 | 天长市通联焊业有限公司 | A kind of high-strength corrosion-resisting welding wire |
| CN111347191A (en) * | 2018-12-20 | 2020-06-30 | 天津大桥焊材集团有限公司 | High-ferrite high-strength stainless steel welding rod special for LNG storage tank |
| CN110253108B (en) * | 2019-07-12 | 2022-05-10 | 中船桂江造船有限公司 | Welding method for B-grade steel and 316L dissimilar steel |
| CN110369910A (en) * | 2019-08-28 | 2019-10-25 | 哈尔滨威尔焊接有限责任公司 | A kind of deposited metal of fast reactor stainless steel electrode |
| US11772207B2 (en) * | 2019-09-20 | 2023-10-03 | Lincoln Global, Inc. | High chromium creep resistant weld metal for arc welding of thick walled steel members |
| CN110666390A (en) * | 2019-10-25 | 2020-01-10 | 王胜心 | Stainless steel flux-cored wire without oxidation color |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323058A (en) * | 2008-07-25 | 2008-12-17 | 中国船舶重工集团公司第七二五研究所 | Acidic coating super two-phase stainless steel electrode |
| CN101386114A (en) * | 2008-10-23 | 2009-03-18 | 天津大桥焊材集团有限公司 | Low magnetic permeability stainless electrode and preparation method thereof |
| CN101700607A (en) * | 2009-11-13 | 2010-05-05 | 北京金威焊材有限公司 | Special stainless steel electrode for deep refrigerating project |
| CN102513741A (en) * | 2011-12-27 | 2012-06-27 | 安泰科技股份有限公司 | Two-phase stainless steel welding electrode and manufacturing method thereof |
| CN103008913A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Corrosion-resistance stainless steel electric welding rod used for nuclear power and production method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7170032B2 (en) * | 2003-11-20 | 2007-01-30 | Tri Tool Inc. | Process for welding |
| CN101367161B (en) * | 2007-08-18 | 2011-07-20 | 中国船舶重工集团公司第七二五研究所 | Low-hydrogen super diphasic stainless steel electrode |
-
2013
- 2013-12-11 CN CN201310676373.6A patent/CN103706960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323058A (en) * | 2008-07-25 | 2008-12-17 | 中国船舶重工集团公司第七二五研究所 | Acidic coating super two-phase stainless steel electrode |
| CN101386114A (en) * | 2008-10-23 | 2009-03-18 | 天津大桥焊材集团有限公司 | Low magnetic permeability stainless electrode and preparation method thereof |
| CN101700607A (en) * | 2009-11-13 | 2010-05-05 | 北京金威焊材有限公司 | Special stainless steel electrode for deep refrigerating project |
| CN102513741A (en) * | 2011-12-27 | 2012-06-27 | 安泰科技股份有限公司 | Two-phase stainless steel welding electrode and manufacturing method thereof |
| CN103008913A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Corrosion-resistance stainless steel electric welding rod used for nuclear power and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103706960A (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103706960B (en) | The heat treated stainless steel electrode of the ferritic stress-removal of a kind of control | |
| CN104607819B (en) | A kind of gas protecting welding wire and its manufacture method | |
| CN100507061C (en) | High collapse-resistance and hydrogen sulphide-corrosion-resistant low alloy petroleum case pipe and method of manufacturing the same | |
| CN106312372B (en) | A kind of welding of 1000MPa high-strength steel gas shielded solid welding wire and its preparation and welding method | |
| CN101733580B (en) | 800MPa-grade high-strength high-tenacity gas shielded welding wire | |
| CN102277540B (en) | igh temperature PWHT softening and production method thereof | |
| CN105886902A (en) | 400MPa-level vanadium-containing anti-seismic anti-corrosion rebar and production method thereof | |
| CN101722382A (en) | High-strength welding wires of gas shielded welding needing thermal refining after welding | |
| CN104493374A (en) | Austenitic stainless steel welding wire and welding technology thereof | |
| CN1923433B (en) | High-performance buried arc welding wire and wire rod, and method for manufacturing same | |
| CN108456827A (en) | A kind of modified adds vanadium chrome molybdenum steel plate and its production method | |
| CN104551441A (en) | Ultrahigh-strength gas protection welding wire containing V and manufacturing method thereof | |
| CN104846291A (en) | High strength anticorrosion stainless steel, stainless steel oil casing and manufacturing method thereof | |
| CN109048117A (en) | Antidetonation is anti-corrosion 690MPa grades of welding wire for submerged-arc welding of fire-resistive construction structural steel | |
| CN102560284A (en) | High-strength high-toughness X100 pipeline steel hot-rolled steel strip and manufacturing method thereof | |
| CN103243264A (en) | Niobium microalloyed steel for low-temperature reinforcing steel bar and rolling process of steel | |
| CN103350289A (en) | Submerged-arc welding wire deposited metal with excellent low-temperature toughness and high strength | |
| CN102218621B (en) | Gas shielded welding wire used for X100 pipeline steel | |
| CN104476008A (en) | Welding wire for high-heat-input submerged-arc welding | |
| CN103100801B (en) | A kind of high-strength high-toughness low alloy modified pressure vessel steel automatic submerged-arc horizontal position welding welding wire | |
| CN101633085B (en) | Stainless steel welding wire and technology for welding same | |
| CN110434507B (en) | Underwater additive repairing metal wire for ocean engineering | |
| CN102021499B (en) | Method for manufacturing high-strength pipe steel | |
| CN107900555A (en) | A kind of welding wire for 630MPa grades high Nb steel two pass submerged-arc welding | |
| CN106392373A (en) | High-strength gas shielded solid welding wire for 1000 MPa-level steel for engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |