CN109988967A - A kind of novel welding material and preparation method thereof - Google Patents
A kind of novel welding material and preparation method thereof Download PDFInfo
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- CN109988967A CN109988967A CN201910174520.7A CN201910174520A CN109988967A CN 109988967 A CN109988967 A CN 109988967A CN 201910174520 A CN201910174520 A CN 201910174520A CN 109988967 A CN109988967 A CN 109988967A
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- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010436 fluorite Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 229910052804 chromium Inorganic materials 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000013535 sea water Substances 0.000 abstract description 2
- 210000003934 vacuole Anatomy 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to a kind of novel welding materials, by weight percentage, it is characterised in that: its chemical component includes: C≤0.03%, Mn≤2%, Si≤1%, p≤0.03%, S≤0.02%, Cr 22.0~23.0%, Ni 4.5~6.5%, Mo3.0~3.5%, N0.14~0.2%.The present invention has the advantage that in manufacturing process, it adds rare earth material and controls the additional amount of copper, make it have better mechanics and corrosion resistant welding material, to improve lumber recovery, there is good resistance to spot corrosion in Seawater, slit and corrosion resistant, resistance to vacuole and erosion corrosion and high fatigue strength, general corrosion resistance performance is also preferable in many circumstances.
Description
Technical field
The present invention relates to welding fields, more particularly to a kind of novel welding material and preparation method thereof.
Background technique
The production technology multiplicity of existing welding material is material needed for direct synthesis, gained under such production model mostly
Welding material performance is single.For under different welding requirements, welding material requires what de novo formation reprocessing program was wanted,
Technique is very cumbersome, and the performance reproducibility of welding material is poor.
Summary of the invention
The present invention is to solve overcome the above technological deficiency, a kind of novel welding material and preparation method thereof is provided.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of novel welding material, with weight percent
Than meter, chemical component includes: C≤0.03%, Mn≤2%, Si≤1%, p≤0.03%, S≤0.02%, and Cr22.0~
23.0%, Ni4.5~6.5%, Mo3.0~3.5%, N0.14~0.2%.
A kind of novel welding material production method, it is characterised in that: comprise the steps of:
Step 1: according to aforementioned proportion, first launch Mi, Cr melting at 1600-1650 DEG C and melt, afterwards plus pure Ni, fusing
After, then plus Mo；
Step 2: vacuum induction melting uses 2 refinery practices after to be melted；For the first time refining (1530~
1560) at a temperature of ± 5 DEG C, vacuum degree control refines 10~20 minutes in 1~6Pa；2nd refining is in (1530~1560)
At a temperature of ± 5 DEG C, vacuum degree control is refined 10 minutes in 0.1~0.02Pa, is segregated with control composition, then carries out electromagnetism
Stirring, is added in the process plus Ti, alkene soil carry out deoxidation slag making；
Step 3: by being uniformly poured by the molten steel of 2 vacuum induction meltings using thread middling speed, the duration of pouring is 12~
18 seconds, pouring temperature controlled temperature and obtains resmelting electrode stick for the first time to ± 5 DEG C of (1530~1560)；
Step 4: electroslag remelting obtains steel ingot；
Step 5: forging steel billet, is forged into the square billet that section side length is 40~80mm for the steel ingot that electroslag remelting obtains, leads to
Cross and carry out finishing after ultrasonic examination, penetrant inspection again, by the steel billet after finishing 850~1160 DEG C at a temperature of by square billet heat
The round bar for rolling into 8~φ of φ 14mm, 1070 ± 10 DEG C at a temperature of soaking time 30~60 minutes, then carry out water quenching, circle
Bar steel wire obtains the austenitic stainless steel wires material blank of meta-stable by solution heat treatment；
Step 6: it is drawn into silk, austenitic stainless steel wires material blank is more with each time 40~70% degree of deformation progress
Secondary drawing, the drawing deformation degree control of last time obtain stainless steel welding material 20~40%.
In 4th step the electroslag quantity of slag proportion are as follows: aluminium powder 25g, alumdum 230g, lime 100g, magnesium powder 100g,
Fluorspar Powder 1240g, titanium dioxide 25g.
The present invention has the advantage that in manufacturing process, addition rare earth material and the additional amount for controlling copper are made it have more
Good mechanics and corrosion resistant welding material has good resistance to spot corrosion to improve lumber recovery in Seawater, and resistance to gap is rotten
Erosion, resistance to vacuole and erosion corrosion and high fatigue strength, general corrosion resistance performance is also preferable in many circumstances.
Specific embodiment
The present invention is described in further detail below.
A kind of novel welding material, by weight percentage, it is characterised in that: its chemical component includes: C≤0.03%,
Mn≤2%, Si≤1%, p≤0.03%, S≤0.02%, Cr 22.0~23.0%, Ni 4.5~6.5%, Mo3.0~
3.5%, N0.14~0.2%.
A kind of novel welding material production method comprising the steps of:
Step 1: according to aforementioned proportion, first launch Mi, Cr melting at 1600-1650 DEG C and melt, afterwards plus pure Ni, fusing
After, then plus Mo；
Step 2: vacuum induction melting uses 2 refinery practices after to be melted；For the first time refining (1530~
1560) at a temperature of ± 5 DEG C, vacuum degree control refines 10~20 minutes in 1~6Pa；2nd refining is in (1530~1560)
At a temperature of ± 5 DEG C, vacuum degree control is refined 10 minutes in 0.1~0.02Pa, is segregated with control composition, then carries out electromagnetism
Stirring, is added in the process plus Ti, alkene soil carry out deoxidation slag making；
Step 3: by being uniformly poured by the molten steel of 2 vacuum induction meltings using thread middling speed, the duration of pouring is 12~
18 seconds, pouring temperature controlled temperature and obtains resmelting electrode stick for the first time to ± 5 DEG C of (1530~1560)；
Step 4: electroslag remelting obtains steel ingot；
Step 5: forging steel billet, is forged into the square billet that section side length is 40~80mm for the steel ingot that electroslag remelting obtains, leads to
Cross and carry out finishing after ultrasonic examination, penetrant inspection again, by the steel billet after finishing 850~1160 DEG C at a temperature of by square billet heat
The round bar for rolling into 8~φ of φ 14mm, 1070 ± 10 DEG C at a temperature of soaking time 30~60 minutes, then carry out water quenching, circle
Bar steel wire obtains the austenitic stainless steel wires material blank of meta-stable by solution heat treatment；
Step 6: it is drawn into silk, austenitic stainless steel wires material blank is more with each time 40~70% degree of deformation progress
Secondary drawing, the drawing deformation degree control of last time obtain stainless steel welding material 20~40%.
In 4th step the electroslag quantity of slag proportion are as follows: aluminium powder 25g, alumdum 230g, lime 100g, magnesium powder 100g,
Fluorspar Powder 1240g, titanium dioxide 25g.
Embodiment 1: by weight percentage, C:0.01%, Mn:0.5%, Si:0.3%, p:0.01%, S:0.01%,
Cr:22%, Ni:4.5%, Mo:3.0%, N:0.14%.
Embodiment 2: by weight percentage, C:0.02%, Mn:1%, Si:0.6%, p:0.02%, S:0.15%, Cr:
22.5%, Ni:5%, Mo:3.2%, N:0.18%.
Embodiment 1: by weight percentage, C:0.03%, Mn:2%, Si:1%, p:0.03%, S:0.02%, Cr:
23%, Ni:6.5%, Mo:3.5%, N:0.2%.
The present invention and its embodiments have been described above, it is this description it is no restricted, shown in also only this
One of embodiment of invention, actual structure is not limited to this.All in all if those skilled in the art by
It is enlightened, and without departing from the spirit of the invention, not inventively designs knot similar with the technical solution
Structure mode and embodiment, are within the scope of protection of the invention.
Claims (3)
1. a kind of novel welding material, by weight percentage, it is characterised in that: its chemical component includes: C≤0.03%, Mn
≤ 2%, Si≤1%, p≤0.03%, S≤0.02%, Cr22.0~23.0%, Ni 4.5~6.5%, Mo3.0~3.5%,
N0.14~0.2%.
2. a kind of novel welding material production method, it is characterised in that: comprise the steps of:
Step 1: first launching Mi, Cr melting at 1600-1650 DEG C according to aforementioned proportion and melting, afterwards plus pure Ni, fusing terminate
Afterwards, then plus Mo；
Step 2: vacuum induction melting uses 2 refinery practices after to be melted；Refining is in (1530~1560) for the first time
At a temperature of ± 5 DEG C, vacuum degree control refines 10~20 minutes in 1~6Pa；2nd refining is ± 5 DEG C of (1530~1560)
At a temperature of, vacuum degree control is refined 10 minutes in 0.1~0.02Pa, is segregated with control composition, then carries out electromagnetic agitation,
It is added in the process plus Ti, alkene soil carries out deoxidation slag making；
Step 3: the duration of pouring is 12~18 by being uniformly poured by the molten steel of 2 vacuum induction meltings using thread middling speed
Second, pouring temperature controls temperature and obtains resmelting electrode stick for the first time to ± 5 DEG C of (1530~1560)；
Step 4: electroslag remelting obtains steel ingot；
Step 5: forging steel billet, is forged into the square billet that section side length is 40~80mm for the steel ingot that electroslag remelting obtains, by super
Finishing is carried out after sonic flaw detection, penetrant inspection again, by the steel billet after finishing 850~1160 DEG C at a temperature of square billet is rolled into
The round bar of 8~φ of φ 14mm, 1070 ± 10 DEG C at a temperature of soaking time 30~60 minutes, then carry out water quenching, round bar steel
Silk obtains the austenitic stainless steel wires material blank of meta-stable by solution heat treatment；
Step 6: being drawn into silk, austenitic stainless steel wires material blank is repeatedly drawn with each time 40~70% degree of deformation
It pulls out, the drawing deformation degree control of last time obtains stainless steel welding material 20~40%.
3. a kind of novel welding material production method according to claim 2, it is characterised in that: in the 4th step
Electroslag quantity of slag proportion are as follows: aluminium powder 25g, alumdum 230g, lime 100g, magnesium powder 100g, Fluorspar Powder 1240g, titanium dioxide 25g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174520.7A CN109988967A (en) | 2019-03-04 | 2019-03-04 | A kind of novel welding material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174520.7A CN109988967A (en) | 2019-03-04 | 2019-03-04 | A kind of novel welding material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109988967A true CN109988967A (en) | 2019-07-09 |
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| CN201910174520.7A Pending CN109988967A (en) | 2019-03-04 | 2019-03-04 | A kind of novel welding material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860818A (en) * | 2019-11-29 | 2020-03-06 | 哈尔滨焊接研究院有限公司 | Low-nickel nitrogen-containing austenitic stainless steel welding wire and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726668A (en) * | 1969-11-29 | 1973-04-10 | Boehler & Co Ag Geb | Welding filling material |
| JPH02295678A (en) * | 1989-05-02 | 1990-12-06 | Nippon Steel Corp | Method for welding duplex stainless steels excellent in pitting corrosion resistance of weld metal part |
| CN1125965A (en) * | 1993-06-21 | 1996-07-03 | 桑德维克公司 | Ferritic-austenitic stainless steel and use of the steel |
| CN1426491A (en) * | 2000-04-28 | 2003-06-25 | 艾略特涡轮机械公司 | Welding method, filler metal composition and article made therefrom |
| CN101913037A (en) * | 2010-09-15 | 2010-12-15 | 江苏立新合金实业总公司 | Super diphase stainless steel welding material and production method thereof |
| CN102251191A (en) * | 2011-07-21 | 2011-11-23 | 重庆仪表材料研究所 | Martensite stainless steel and preparation method for flat strip of martensite stainless steel |
-
2019
- 2019-03-04 CN CN201910174520.7A patent/CN109988967A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726668A (en) * | 1969-11-29 | 1973-04-10 | Boehler & Co Ag Geb | Welding filling material |
| JPH02295678A (en) * | 1989-05-02 | 1990-12-06 | Nippon Steel Corp | Method for welding duplex stainless steels excellent in pitting corrosion resistance of weld metal part |
| CN1125965A (en) * | 1993-06-21 | 1996-07-03 | 桑德维克公司 | Ferritic-austenitic stainless steel and use of the steel |
| CN1426491A (en) * | 2000-04-28 | 2003-06-25 | 艾略特涡轮机械公司 | Welding method, filler metal composition and article made therefrom |
| CN101913037A (en) * | 2010-09-15 | 2010-12-15 | 江苏立新合金实业总公司 | Super diphase stainless steel welding material and production method thereof |
| CN102251191A (en) * | 2011-07-21 | 2011-11-23 | 重庆仪表材料研究所 | Martensite stainless steel and preparation method for flat strip of martensite stainless steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860818A (en) * | 2019-11-29 | 2020-03-06 | 哈尔滨焊接研究院有限公司 | Low-nickel nitrogen-containing austenitic stainless steel welding wire and preparation method thereof |
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Effective date of registration: 20210826 Address after: 221000 dinglou village, Xijiao, Xuzhou City, Jiangsu Province Applicant after: JIANGSU PROVINCE XUZHOU TECHNICIAN INSTITUTE Applicant after: China University of Mining and Technology Address before: 221004 dinglou village, Xijiao, Xuzhou City, Jiangsu Province Applicant before: JIANGSU PROVINCE XUZHOU TECHNICIAN INSTITUTE |
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Application publication date: 20190709 |