CN105108376A - Nickel alloy high-temperature-resistant welding wire - Google Patents
Nickel alloy high-temperature-resistant welding wire Download PDFInfo
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- CN105108376A CN105108376A CN201510497786.7A CN201510497786A CN105108376A CN 105108376 A CN105108376 A CN 105108376A CN 201510497786 A CN201510497786 A CN 201510497786A CN 105108376 A CN105108376 A CN 105108376A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—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
- B23K35/3066—Fe as the principal constituent with Ni as next major 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
- B23K35/02—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
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention belongs to the technical field of welding, relates to a welding wire, discloses an alloy welding wire and particularly relates to a nickel alloy high-temperature-resistant welding wire and a preparation technology thereof. Chemical components of the welding wire comprise, by mass, 0.40%-0.45% of C, 1.00%-1.50% of Mn, 1.00%-1.50% of Si, 24.50%-26.00% of Cr, 34.00%-36.00% of Ni, 0%-0.15% of Ti, 0%-0.02% of S, 0%-0.25% of P, 0%-0.10% of Y, 0%-0.1% of Zr and the balance Fe and other inevitable impurity elements. The welding wire overcomes the defects in the prior art and can completely take the place of imported welding wires. According to the performance of the welding wire, the yield strength is 200-400 Mpa, the tensile strength is 450-600 Mpa, and the ductility is 10-30%.
Description
Technical field
The invention belongs to welding technology field, relate to a kind of welding wire, is more particularly nickel alloy welding wire, particularly relates to the high temperature resistant welding wire of a kind of nickel alloy and preparation technology thereof.
Background technology
High temperature, high pressure, inflammable, explosive be the feature of ethylene unit.The condition of work of cracking of ethylene process is very harsh, its service condition not only temperature is high, be in the fatigue state of rapid heat cycle, simultaneously and be also subject to the hot cavitation effect of gas medium, general pearlite heatproof steel, hardened stainless steel etc. all can not meet this structural performance requirements, therefore, in the process of device assembles welding, higher requirement is proposed to welding wire.
At present, for meeting above-mentioned requirements, the welding wire of domestic enterprise is generally from external import, delay duration process, increase production cost, its welding wire all adopts the welding wire of high chromium nickel high temperature alloy material, but high chromium nickel high temperature alloy complex chemical composition, different with service condition, alloy has different structural states, particularly phosphorus content and alloy content increase, the quality control difficulty of welding point strengthens, and high chromium nickel high temperature alloy weld metal in welding process has larger solidification cracking tendency, there is weld porosity in addition, the corrosion of welding point, the impurity of welding point such as to be mingled with at the problem.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, there is provided a kind of nickel alloy high temperature resistant welding wire, welding wire prepared by the present invention can substituting import one, welding wire performance is better than foreign same type product, reduce the production cost of manufacturing enterprise, fundamentally solve the Welding Problems because welding wire poor performance causes.
Technical scheme of the present invention is achieved in that
The high temperature resistant welding wire of a kind of nickel alloy, the chemical composition mass percent of described welding wire is: C0.40-0.45%, Mn1.00-1.50%, Si1.00-1.50%, Cr24.50-26.00%, Ni34.00%-36.00%, Ti≤0.15%, S≤0.02%, P≤0.025%, Y≤0.10%, Zr≤0.1%, the rest is Fe, and other inevitable impurity elements.
The chemical composition mass percent of described welding wire is: C0.42-0.44%, Mn1.20-1.40%, Si1.10-1.40%, Cr25.00-25.80%, Ni34.50%-35.50%, Ti≤0.15%, S≤0.02%, P≤0.025%, Y≤0.10%, Zr≤0.1%, the rest is Fe, and other inevitable impurity elements.
The chemical composition mass percent of described welding wire is: C0.43%, Mn1.30%, Si1.20%, Cr25.40%, Ni35.00%, Ti0.15%, S0.02%, P0.025%, Y0.10%, Zr0.01%, the rest is Fe, and other inevitable impurity elements.
The mainly element such as chromium, iron, titanium, sulphur, phosphorus, carbon, silicon single angle from weldability.Chromium, iron, manganese etc. are favourable for alloy property, weldability generally speaking, and the elements such as sulphur, phosphorus, carbon, silicon are then unfavorable.
Titanium not only deoxidation can produce oxide but also can produce ageing strengthening effect, and can reduce weld metal simultaneously and produce pore, the defect such as loose, but be only trace element, content is crossed and reduced weld metal performance at most, and manganese, silicon combined deoxidation are also the most effective deoxidiers.
The impact of phosphorus, the sulphur Resistance of Weld Metal when welding high-chromium-nickel alloy is more more responsive than other alloying element.Matter of utmost importance is the solidification cracking of weld seam.Phosphorus, the sulphur solubility in high-chromium-nickel alloy is very little, but easily forms cyrystal boundary segregation, produces the sulfide of low melting point eutectic, promotes the generation of solidification cracking.Therefore phosphorous, sulfur content must be controlled in welding material, welding process.
In component, C can form MC, M with alloying element
6c, M
23c
6in carbide, be solid-solution in austenite on the one hand, play solution strengthening effect, on the other hand, reasonable layout stops Grain Boundary Sliding in crystal boundary energy, and strengthens crystal boundary mutually with alloy generation gap, ensure the high-temperature behavior of alloy, high Ni content can form pure austenite phase simultaneously; Adding of Cr can ensure high non-oxidizability, and can improve the ability of the austenitizing of Ni, suppresses the formation of σ brittlement phase, maintains austenitic stability; Y and Zr adds, and can form tiny primary carbide be solid-solution in austenite with carbon, and solution strengthening improves alloy strength, and in use, makes matrix separate out tiny M
23c
6type carbide and secondary MC type carbide.
The preparation method of described nickel alloy is high temperature resistant welding wire, comprises following processing step:
(1) alloy melting: according to the mass percent batching of welding wire chemical composition, after raw material is dropped into vacuum induction melting, pour into electrode bar;
Adopt vacuum metling technique, be conducive to the reduction of gas content, avoid the oxidation of alloying element titanium etc.
(2) electroslag remelting: adopt electroslag remelting equipment, insert in slag using after the surface finish process of step (1) described electrode bar as electrode, slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 75%-85%, Al
2o
3mass percentage content be the mass percentage content of 12%-18%, CaO be 4%-6%, have a power failure cool time: 5min-10min, and de-ingot, is cooled to normal temperature, obtains alloy pig;
(3) hot forging: the heating furnace described alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to 1180 DEG C-1250 DEG C, temperature retention time: 55min-75min, after forge, be forged into alloy preform, be cooled to normal temperature;
(4) hot-roll annealing: the alloy preform described in step (3) is heated to 1100 DEG C-1160 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
(5) pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
(6) cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter≤3mm;
(7) hydrogen moves back: after the dish unit silk material hydrogen after cold drawn process is moved back process, obtain the high temperature resistant welding wire of nickel alloy; The mechanical property requirements of the welding wire of preparation is.
The mechanical property that the present invention prepares welding wire is: yield strength 200-400Mpa, tensile strength 450-600Mpa, percentage elongation 10-30%.
Take hydrogen annealing process, the hardness of welding wire can be reduced, improve plasticity, eliminate stress, optimize metallurgical structure, make welding wire show light, softness, nonmagnetic to make welding wire anti-fatigue performance good, Yan Li great.
In described processing step: CaF in step (2) slag system
2mass percentage content be 78%-82%, Al
2o
3mass percentage content be the mass percentage content of 14%-16%, CaO be 4.5%-5.5%, have a power failure cool time: 6min-8min; Temperature retention time: 60min-70min in step (3); The middle alloy preform of step (4) is heated to 1110 DEG C-1140 DEG C and carries out hot rolling.
Compared with prior art, the Advantageous Effects that has of the present invention:
(1) the rare earth metal yttrium added in the high temperature resistant welding wire of nickel alloy of the present invention, strengthen plasticity and the resistance to elevated temperatures of alloy welding wire, after adding metallic yttrium, the percentage elongation of its material adds 15%, reduces to produce to draw difficulty; The temperature of forging rises to 1200 DEG C-1250 DEG C by original heating-up temperature 1100 DEG C-1150 DEG C, increase rate 9%, improves the cogging temperature of alloy pig, reduces cogging difficulty, and the percentage elongation of welding wire increases by 5%.
(2) add yttrium, titanium and zirconium in alloy welding wire of the present invention and jointly play invigoration effect, there is the larger solidification cracking tendency that outstanding suppression weld metal has, strengthen anti-spot corrosion and crevice corrosion ability.
(3) content of the present invention to manganese and silicon strictly controls, manganese and silicon combined deoxidation are the most effective deoxidiers, in order to ensure to reduce at manganese and silicone content the metallicity not affecting again welding wire simultaneously, the present invention adopts vacuum metling technique in step of preparation process, be conducive to the reduction of gas content, avoid the oxidation of alloying element titanium etc.
(4) take hydrogen annealing process in step of preparation process of the present invention, reduce the hardness of welding wire, improve plasticity, eliminate stress, optimize metallurgical structure, make welding wire show light, softness, nonmagnetic to make welding wire anti-fatigue performance good, Yan Li great.
(5) Welded Joints carries out the test of normal temperature and mechanical behavior under high temperature, all meets the welding point of instructions for use under obtaining normal temperature and high temperature.Welding quality is excellent, and welding production efficiency is higher, and weld appearance quality is beautiful.
Detailed description of the invention
Raw material illustrate: raw material of the present invention adopt chromium element to be crome metal, purity content >=99%; Nickel element is Jinchuan Nickel, purity >=99.9%; Titanium elements is titanium sponge, purity content >=99%; Yttrium is metallic yttrium, purity content >=99%; Zr element is silicozirconium, and purity content 60% is commercially available, can directly use.
Below in conjunction with specific embodiment, the present invention is described in further detail, but do not form any limitation of the invention.
Embodiment 1
The high temperature resistant welding wire of a kind of nickel alloy, the chemical composition mass percent of welding wire is: C0.40%, Mn1.00%, Si1.00%, Cr24.50%, Ni34.00%, Ti0.15%, S0.02%, P0.025%, Y0.10%, Zr0.01%, the rest is Fe.
The preparation method of nickel alloy is high temperature resistant welding wire, comprises following processing step:
(1) alloy melting: the chemical composition mass percent according to welding wire is prepared burden, and after raw material is dropped into vacuum induction melting, pours into electrode bar;
(2) electroslag remelting: adopt electroslag remelting equipment, insert in slag using after the surface finish process of step (1) described electrode bar as electrode, slag adopts CaF2, Al2O3, CaO slag system, CaF in slag system
2mass percentage content be 76%, Al
2o
3mass percentage content be the mass percentage content of 18%, CaO be 6%, have a power failure cool time: 5min, and de-ingot, is cooled to normal temperature, obtains alloy pig;
(3) hot forging: the heating furnace described alloy pig being put into initial temperature 500 DEG C heats, and is warming up to 1210 DEG C, temperature retention time: 55min, after forge, be forged into alloy preform, be cooled to normal temperature;
(4) hot-roll annealing: the alloy preform described in step (3) is heated to 1100 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
(5) pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
(6) cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter 3mm;
(7) hydrogen moves back: after the dish unit silk material hydrogen after cold drawn process is moved back process, obtain the high temperature resistant welding wire of nickel alloy.
The mechanical property of the welding wire of preparation is: yield strength 200Mpa, tensile strength 450Mpa, percentage elongation 10%.
Embodiment 2
The high temperature resistant welding wire of a kind of nickel alloy, the chemical composition mass percent of welding wire is: C0.45%, Mn1.50%, Si1.50%, Cr26.00%, Ni36.00%, Ti0.10%, S0.01%, P0.020%, Y0.09%, Zr0.008%, the rest is Fe.
The preparation method of nickel alloy is high temperature resistant welding wire, comprises following processing step:
(1) alloy melting: the chemical composition mass percent according to welding wire is prepared burden, and after raw material being dropped into vacuum sense induction furnace melting, pours into electrode bar;
(2) electroslag remelting: adopt electroslag remelting equipment, insert in slag using after the surface finish process of step (1) described electrode bar as electrode, slag adopts CaF
2, Al2O
3, CaO slag system, in slag system, the mass percentage content of CaF2 is 85%, Al
2o
3mass percentage content be the mass percentage content of 12%-18%, CaO be 3%, have a power failure cool time: 10min, and de-ingot, is cooled to normal temperature, obtains alloy pig;
(3) hot forging: the heating furnace described alloy pig being put into initial temperature 50 DEG C heats, and is warming up to 1250 DEG C, temperature retention time: 75min, after forge, be forged into alloy preform, be cooled to normal temperature;
(4) hot-roll annealing: the alloy preform described in step (3) is heated to 1150 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
(5) pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
(6) cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter 2mm;
(7) hydrogen moves back: after the dish unit silk material hydrogen after cold drawn process is moved back process, obtain the high temperature resistant welding wire of nickel alloy; The mechanical property requirements of the welding wire of preparation is: yield strength 100Mpa, tensile strength 400Mpa, percentage elongation 30%.
Embodiment 3
The chemical composition mass percent of welding wire is: C0.42%, Mn1.20%, Si1.10%, Cr25.00-%, Ni34.50%, Ti0.12%, S0.015%, P0.020%, Y0.07%, Zr0.008%, the rest is Fe, and other inevitable impurity elements.
The preparation method of nickel alloy is high temperature resistant welding wire, comprises following processing step:
(1) alloy melting: the chemical composition mass percent according to welding wire is prepared burden, and after raw material is dropped into vacuum induction melting, pours into electrode bar;
(2) electroslag remelting: adopt electroslag remelting equipment, insert in slag using after the surface finish process of step (1) described electrode bar as electrode, slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 75%-85%, Al
2o
3mass percentage content be the mass percentage content of 12%-18%, CaO be 4%-6%, have a power failure cool time: 5min-10min, and de-ingot, is cooled to normal temperature, obtains alloy pig;
(3) hot forging: the heating furnace described alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to 1210 DEG C-1250 DEG C, temperature retention time: 55min-75min, after forge, be forged into alloy preform, be cooled to normal temperature;
(4) hot-roll annealing: the alloy preform described in step (3) is heated to 1100 DEG C-1150 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
(5) pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
(6) cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter≤3mm;
(7) hydrogen moves back: after the dish unit silk material hydrogen after cold drawn process is moved back process, obtain the high temperature resistant welding wire of nickel alloy; The mechanical property of the welding wire of preparation is: yield strength 400Mpa, tensile strength 600Mpa, percentage elongation 30%.
Embodiment 4
The chemical composition mass percent of welding wire is: C0.44%, Mn1.40%, Si1.40%, Cr255.80%, Ni35.50%, Ti0.09%, S0.017%, P0.023%, Y0.05%, Zr≤0.001%, the rest is Fe.
The preparation method of described nickel alloy is high temperature resistant welding wire: processing step is with embodiment 1, and different process step is:
In step (2) slag system, the mass percentage content of CaF2 is 78%%, Al
2o
3mass percentage content be the mass percentage content of 17%, CaO be 5%, have a power failure cool time: 6min; Temperature retention time: 60min-in step (3); The middle alloy preform of step (4) is heated to 1110 DEG C and carries out hot rolling.The mechanical property of the welding wire of preparation is: yield strength 100Mpa, tensile strength 200Mpa, percentage elongation 15%.
Embodiment 5
The chemical composition mass percent of welding wire is: C0.43%, Mn1.30%, Si1.20%, Cr25.40%, Ni35.00%, Ti0.15%, S0.02%, P0.025%, Y0.10%, Zr0.01%, the rest is Fe, and other inevitable impurity elements.
The preparation method of nickel alloy is high temperature resistant welding wire, is characterized in that: lower processing step is with embodiment 2, and different process step is: CaF in step (2) slag system
2mass percentage content be 81%, Al
2o
3mass percentage content be the mass percentage content of 14.5%, CaO be 4.5%, have a power failure cool time: 8min; Temperature retention time: 70min in step (3); The middle alloy preform of step (4) is heated to 1140 DEG C and carries out hot rolling.The mechanical property of the welding wire of preparation is: yield strength 150Mpa, tensile strength 450Mpa, percentage elongation 25%.
The mechanical property of welding point measures according to national standard " GB/T228-2002 metal material tensile testing at ambient temperature " and " GB/T4338-1995 Metal Materials At High Temperature tension test ", and result is as shown in table 1.Under 1050 DEG C and the effect of 25MPa tensile stress, test high temperature endurance performance, do not break through 100h.When normal temperature and mechanical behavior under high temperature are surveyed, sample all breaks in mother metal, and does not break yet after high-temperature and durable stretching 100h, shows that welding point has good normal temperature, drawing by high temperature mechanical property and high-temperature and durable tensile property.Data as can be seen from table 1, the mechanical property of welding point has fully meet the mother metal mechanical property of table 1 requirement, so the quality of welding is completely qualified.
Welding bar of the present invention: test piece for welding: Ti-5.0Al-3.5Sn-3.0Zr-1.0Mo-0.3Si-0.4Nb-0.4Ta (Ti-55B); Test plate (panel) specification: δ 2.0mm hot rolled plate; Welding method: argonaut welding; Welding current: 110A ~ 120A; Weldingvoltage: 11.0V ~ 12.0V; Speed of welding 12m/h; Wire feed rate: 30m/h; Post-weld annealed system: 670 DEG C/3h, cools with stove.
Table 1 bond pull performance
Claims (5)
1. the high temperature resistant welding wire of nickel alloy, is characterized in that: the chemical composition mass percent of described welding wire is: C0.40-0.45%, Mn1.00-1.50%, Si1.00-1.50%, Cr24.50-26.00%, Ni34.00%-36.00%, Ti≤0.15%, S≤0.02%, P≤0.025%, Y≤0.10%, Zr≤0.1%, the rest is Fe, and other inevitable impurity elements.
2. the high temperature resistant welding wire of nickel alloy according to claim 1, is characterized in that: the chemical composition mass percent of described welding wire is: C0.42-0.44%, Mn1.20-1.40%, Si1.10-1.40%, Cr25.00-25.80%, Ni34.50%-35.50%, Ti≤0.15%, S≤0.02%, P≤0.025%, Y≤0.10%, Zr≤0.1%, the rest is Fe, and other inevitable impurity elements.
3. the high temperature resistant welding wire of nickel alloy according to claim 1, is characterized in that: the chemical composition mass percent of described welding wire is: C0.43%, Mn1.30%, Si1.20%, Cr25.40%, Ni35.00%, Ti0.15%, S0.02%, P0.025%, Y0.10%, Zr0.01%, the rest is Fe, and other inevitable impurity elements.
4. a preparation method for claim 1 or the high temperature resistant welding wire of nickel alloy described in 2 or 3, is characterized in that: comprise following processing step:
(1) alloy melting: the chemical composition mass percent according to welding wire is prepared burden, and after raw material is dropped into vacuum induction melting, pours into electrode bar;
(2) electroslag remelting: adopt electroslag remelting equipment, insert in slag using after the surface finish process of step (1) described electrode bar as electrode, slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 75%-85%, Al
2o
3mass percentage content be the mass percentage content of 12%-18%, CaO be 4%-6%, have a power failure cool time: 5min-10min, and de-ingot, is cooled to normal temperature, obtains alloy pig;
(3) hot forging: the heating furnace described alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to 1180 DEG C-1250 DEG C, temperature retention time: 55min-75min, after forge, be forged into alloy preform, be cooled to normal temperature;
(4) hot-roll annealing: the alloy preform described in step (3) is heated to 1100 DEG C-1150 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
(5) pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
(6) cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter≤3mm;
(7) hydrogen moves back: after the dish unit silk material hydrogen after cold drawn process is moved back process, obtain the high temperature resistant welding wire of nickel alloy; The mechanical property of the welding wire of preparation is: yield strength 200-400Mpa, tensile strength 450-600Mpa, percentage elongation 10-30%.
5. the preparation method of the high temperature resistant welding wire of nickel alloy according to claim 3, is characterized in that: in described processing step: CaF in step (2) slag system
2mass percentage content be 78%-82%, Al
2o
3mass percentage content be the mass percentage content of 14%-16%, CaO be 4.5%-5.5%, have a power failure cool time: 6min-8min; Temperature retention time: 60min-70min in step (3); The middle alloy preform of step (4) is heated to 1100 DEG C-1160 DEG C and carries out hot rolling.
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| CN113492279A (en) * | 2021-05-25 | 2021-10-12 | 江苏新恒基特种装备股份有限公司 | Nickel-chromium-tungsten-cobalt alloy argon arc welding wire for additive manufacturing and preparation method thereof |
| CN115383346A (en) * | 2021-05-25 | 2022-11-25 | 丹阳市凯鑫合金材料有限公司 | Production method of nickel-based alloy welding wire |
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| CN107138873A (en) * | 2017-04-14 | 2017-09-08 | 江苏羽立新材料科技有限公司 | A kind of low-phosphorous sulphur high-strength high temperature-resistant Cr35Ni45Nichrome welding wire and its preparation technology |
| CN108788516A (en) * | 2018-07-02 | 2018-11-13 | 北京金威焊材有限公司 | The Ni-based flux-cored wire of Ni-Cr-Mo tungsten system |
| CN109693055A (en) * | 2019-01-31 | 2019-04-30 | 江苏新航合金科技有限公司 | Oil-gas pipeline inner wall overlaying corrosion-and high-temp-resistant nickel alloy welding wire and preparation method |
| CN109894770A (en) * | 2019-01-31 | 2019-06-18 | 江苏新航合金科技有限公司 | Ethane cracking furnace cast tube NiCrNb-Re corrosion-and high-temp-resistant welding wire and preparation method thereof |
| CN110280923A (en) * | 2019-06-13 | 2019-09-27 | 江苏大学 | The welding method of 800H alloy welding Fe-Ni based alloy welding wire and preparation method thereof, 800H alloy |
| CN112621023A (en) * | 2019-09-24 | 2021-04-09 | 江苏国镍新材料科技有限公司 | High-corrosion-resistance nickel alloy welding wire and preparation method thereof |
| CN111299906B (en) * | 2020-03-26 | 2021-08-24 | 江苏博航合金科技有限公司 | NiCrNb-Zr welding wire for cracking furnace and preparation method thereof |
| CN111299906A (en) * | 2020-03-26 | 2020-06-19 | 江苏博航合金科技有限公司 | NiCrNb-Zr welding wire for cracking furnace and preparation method thereof |
| CN111822900A (en) * | 2020-07-24 | 2020-10-27 | 曹怡 | Nickel-based alloy, preparation method thereof and welding strip |
| CN113478118A (en) * | 2021-05-25 | 2021-10-08 | 江苏新恒基特种装备股份有限公司 | Nickel-chromium-iron heat-resistant alloy argon arc welding wire for additive manufacturing and preparation method |
| CN113492280A (en) * | 2021-05-25 | 2021-10-12 | 江苏新恒基特种装备股份有限公司 | Chromium-tungsten-cobalt-nickel-iron alloy argon arc welding wire for additive manufacturing and preparation method thereof |
| CN113492279A (en) * | 2021-05-25 | 2021-10-12 | 江苏新恒基特种装备股份有限公司 | Nickel-chromium-tungsten-cobalt alloy argon arc welding wire for additive manufacturing and preparation method thereof |
| CN115383346A (en) * | 2021-05-25 | 2022-11-25 | 丹阳市凯鑫合金材料有限公司 | Production method of nickel-based alloy welding wire |
| CN115852205A (en) * | 2022-12-05 | 2023-03-28 | 江苏博航合金科技有限公司 | Nickel alloy material for refining polycrystalline silicon pressure vessel equipment |
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