CN113579418A - Method for manufacturing nickel-based alloy coating, processor and medium - Google Patents
Method for manufacturing nickel-based alloy coating, processor and medium Download PDFInfo
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- CN113579418A CN113579418A CN202110961947.9A CN202110961947A CN113579418A CN 113579418 A CN113579418 A CN 113579418A CN 202110961947 A CN202110961947 A CN 202110961947A CN 113579418 A CN113579418 A CN 113579418A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 42
- 239000000956 alloy Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 48
- 229910052759 nickel Inorganic materials 0.000 title abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 109
- 239000012895 dilution Substances 0.000 claims abstract description 16
- 238000010790 dilution Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 18
- 238000005260 corrosion Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 229910001119 inconels 625 Inorganic materials 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical group [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
- B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
- B23K9/048—Built-up welding on three-dimensional surfaces on surfaces of revolution on cylindrical surfaces
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a method for manufacturing a nickel-based alloy coating, which comprises the steps of polishing the inner wall of a sleeve, removing impurities and oxides, and then wiping alcohol or acetone to remove oil stains; configuring welding equipment; configuring a welding rotary worktable, and fixing the sleeve on the welding rotary worktable; setting welding process parameters; and (6) welding. The method has the advantages of high welding efficiency, high welding seam quality, low welding seam dilution rate and strong corrosion resistance. The invention also provides a processor and a medium, wherein the processor is arranged on the welding equipment and used for executing the instructions for manufacturing the nickel-based alloy coating, and the medium is arranged in the processor and used for storing the instructions for manufacturing the nickel-based alloy coating. The processor and the medium provided by the invention are beneficial to realizing the automatic manufacture of the nickel-based alloy coating.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a method for manufacturing a nickel-based alloy coating, a processor and a medium.
Background
Since the 21 st century, the world has entered the unsafe period of energy due to the rapid rise in the demand for fossil energy in the human modern society, and the development and utilization of marine resources in this country have been accelerated both in developed countries and developing countries. The high-speed development of economy in China also enables the demand on ocean energy sources (natural gas, petroleum and the like) to continuously increase, the development of ocean oil and gas drilling platforms and petroleum pipeline industries is driven to be rapid, and the length of oil pipes in China is limited to be more than 12 kilometers at present. The oil pipe has the advantages of being safe, large in transportation amount, convenient to manage and the like, and plays a role in closing in the processes of offshore oil exploitation, natural gas treatment, storage and transmission.
The P110 steel grade oil pipe is one of the main pipes of technical casing pipes and oil reservoir pipes in various countries in the world, and is largely used for development and utilization of oil and gas resources. In order to increase the production during the development of oil and gas fields, the medium is acidified. Therefore, in the operation process, the joint of the oil pipe can be corroded rapidly, oil gas leakage accidents are easy to happen, and huge economic losses are caused. This requires that the materials used in mining, transportation, etc. must have good corrosion resistance. The problem of poor corrosion resistance cannot be fundamentally solved only by improving the chemical composition of the oil jacket pipe or performing heat treatment.
As is well known, nickel-based alloys have good mechanical properties, corrosion resistance, and good workability and weldability. The alloy belongs to Ni-Cr solid solution strengthening alloy, wherein the alloying element Cr forms a Cr2O3 film in a corrosive environment to prevent further corrosion and play a role in resisting oxidation corrosion. Mo and Ni mainly play a role in resisting reduction corrosion, and the existence of Mo element enables the alloy to have good pitting corrosion resistance and crevice corrosion resistance, so that the nickel-based alloy can be used for harsh and complex corrosion conditions which cannot be met by low alloy steel and stainless steel. However, the price of the alloy is far higher than that of carbon steel, the price of the alloy is usually 10-15 times that of common sulfur-resistant steel, the overall cost of the nickel-based alloy is too high, and in application, a large amount of corrosive substances are usually deposited at the joint of the oil pipe, and the alloy is more easily corroded compared with the pipe body.
The most common welding manufacture of the nickel-based alloy composite pipe is tungsten argon arc welding (GTAW), but the welding efficiency is low, and C, Fe elements in the carbon steel substrate can diffuse into the nickel-based alloy surfacing layer due to the high dilution rate, so that secondary phases are formed, and the corrosion resistance of the surfacing layer is reduced. Cold metal transition plus pulse (CMT/P) is a more advanced process developed by adding a pulse welding technology on the basis of the traditional CMT, and has the advantages of low dilution rate of base metal, compact weld joint structure, small residual stress and deformation, stable electric arc, few welding defects and the like. The CMT/P welding process is used for the P110 inner wall surfacing nickel-based alloy (Inconel 625), and is expected to overcome the defects of low welding efficiency, high dilution rate and the like of the traditional GTAW welding, so that the comprehensive performance of the oil pipe is greatly improved.
Disclosure of Invention
The invention aims to provide a method, a processor and a medium for manufacturing a nickel-based alloy coating, which can improve the corrosion resistance of the nickel-based alloy coating.
In order to achieve the purpose, the invention provides the following scheme:
a method of making a nickel-base alloy coating, the method comprising:
polishing the inner wall of the sleeve to remove impurities and oxides, and then wiping alcohol or acetone to remove oil stains;
configuring welding equipment; the welding apparatus includes: the welding wire comprises a welding robot, a CMT/P welding machine power supply, a water tank and a CMT/P welding gun, wherein the CMT/P welding machine power supply supplies power to the CMT/P welding gun, and the water tank is used for cooling the CMT/P welding gun;
configuring a welding rotary worktable, and fixing the sleeve on the welding rotary worktable;
setting welding process parameters; the welding process parameters comprise: wire feeding speed, welding speed, current, voltage, CMT/P, welding gun inclination angle, protective gas flow and welding dilution rate;
and (6) welding.
Optionally, the wire feeding speed is 6.0-8.0 m/min, the welding speed is 36-48 cm/min, the current is 135-183A, the voltage is 20.3-23.3V, the CMT/P is 1:10, 1:15 or 1:20, the welding gun inclination angle is 15 degrees, the protective gas flow is Ar protective gas flow, and the velocity of the protective gas flow is 20L/min.
Alternatively, said utilization
Determining the weld dilution ratio; where D is the weld dilution, As is the area of the molten parent metal, Af is the area of the weld overlay, and the parent metal is a P110 tube.
Optionally, the welding equipment is a FRONIUS CMT welding machine, the welding wire is ERNiCrMo-3, and the diameter of the welding wire is 1.2 mm.
Optionally, the dry extension of the welding wire is 13mm-15 mm.
Optionally, the inner wall of the casing is ground using an angle grinder loaded grinding sheet.
A processor is disposed on a welding apparatus for executing instructions for producing a nickel-base alloy coating.
A medium disposed in a processor for storing instructions for producing a nickel-base alloy coating.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the welding efficiency is high. Compared with the traditional manual argon arc welding process, the CMT/P method greatly improves the welding efficiency by accelerating the wire feeding speed and the welding speed under the condition of ensuring the welding heat input.
The welding seam quality is high. The CMT/P method reduces short-circuit current in the welding process, has small weld spatter and excessively stable molten drop, and the obtained weld has good molding and no defects such as air holes, defects, inclusions and the like.
The welding line has low dilution rate and strong corrosion resistance. The CMT/P method avoids the generation of short-circuit current in the molten drop transition process by controlling the welding wire to be drawn back, and the obtained welding seam has small penetration and low dilution rate which is only 2.99 percent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of a Ni-based alloy weld overlay dual-ring EPR test sampling obtained by a CMT/P method according to the present invention;
FIG. 2 is a schematic diagram of a polarization curve of a nickel-based alloy surfacing layer double-ring EPR test obtained by a CMT/P method.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method, a processor and a medium for manufacturing a nickel-based alloy coating, which can improve the corrosion resistance of the nickel-based alloy coating.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention adopts a CMT/P method to weld Inconel 625 on the inner wall of a P110 pipe, and the method specifically comprises the following steps:
step 1: and (3) polishing the inner wall of the P110 pipe by using an angle grinder loading polishing sheet, removing impurities and oxides on the surface of the P110 workpiece, and then wiping alcohol or acetone to remove oil stains on the surface of the workpiece.
Step 2: configuring welding equipment; the welding apparatus includes: the welding wire, the welding robot, a CMT/P welding machine power supply, a water tank and a CMT/P welding gun, wherein the CMT/P welding machine power supply supplies power to the CMT/P welding gun, and the water tank is used for cooling the CMT/P welding gun. Preferably, the welding equipment is a FRONIUS CMT welder, the welding wire is Inconel 625, the diameter of the welding wire is 1.2mm, and the dry elongation of the welding wire is kept between 13mm and 15 mm.
And step 3: configuring a welding rotary workbench, and fixing the sleeve on the welding rotary workbench; and in the welding process, the welding gun is kept still, and the rotary clamping groove drives the P110 pipe to rotate.
And 4, step 4: setting welding process parameters; the welding process parameters comprise: wire feeding speed, welding speed, current, voltage, CMT/P, welding gun inclination angle, protective gas flow and welding dilution rate; preferably, the wire feeding speed is 6.0-8.0 m/min, the welding speed is 36-48 cm/min, the current is 135-183A, the voltage is 20.3-23.3V, the CMT/P is 1:10, 1:15 or 1:20, the welding gun inclination angle is 15 degrees, the protective gas flow is Ar protective gas flow, and the speed of the protective gas flow is 20L/min. More preferably, the wire feeding speed is 8.0m/min, the welding speed is 48cm/minCMT/P is 1:15, the current is 183A, and the voltage is 23.3V. By using
Determining a welding dilution rate; where D is the weld dilution, As is the area of the molten parent material, Af is the area of the weld overlay, and the parent material is a P110 tube.
And 5: and (5) welding after the welding parameters are set. Determining whether to swing and welding speed according to the welding efficiency; the hardness and the arc length of the electric arc are determined according to the welding speed, the slag removal operation between welding beads needs to be noticed during welding, and the lap joint rate between the welding beads is controlled to be 50%.
After welding is finished, one sample is selected from three positions of different heights of the surfacing layer, a double-ring electrochemical reactivation method is adopted to measure a sensitization index to evaluate the corrosion resistance, the specific test result is shown in figure 1, and the test polarization curve schematic diagram is shown in figure 2. The intergranular corrosion resistance of the nickel-based alloy is inversely proportional to the content of C, Fe, and the low dilution rate inhibits the diffusion of harmful elements such as C, Fe and the like in the base material P110 tube into the Inconel 625 overlaying layer, so that the Inconel 625 overlaying layer obtained by the CMT/P method has more excellent intergranular corrosion resistance.
The surfacing process for manufacturing the corrosion-resistant nickel-based alloy coating based on the CMT/P method is based on the excellent comprehensive performance of the Inconel 625 alloy, the Inconel 625 alloy is surfaced at the joint of the pipe orifice of the inner wall of the oil sleeve, and the thread is formed at the surfacing position to connect the pipe and the pipe, so that the problem is expected to be fundamentally solved.
The invention also provides a processor and a medium, wherein the processor is arranged on the welding equipment and used for executing the instructions for manufacturing the nickel-based alloy coating, and the medium is arranged in the processor and used for storing the instructions for manufacturing the nickel-based alloy coating. The processor and the medium provided by the invention are beneficial to realizing the automatic manufacture of the nickel-based alloy coating.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A method of making a nickel-base alloy coating, the method comprising:
polishing the inner wall of the sleeve to remove impurities and oxides, and then wiping alcohol or acetone to remove oil stains;
configuring welding equipment; the welding apparatus includes: the welding wire comprises a welding robot, a CMT/P welding machine power supply, a water tank and a CMT/P welding gun, wherein the CMT/P welding machine power supply supplies power to the CMT/P welding gun, and the water tank is used for cooling the CMT/P welding gun;
configuring a welding rotary worktable, and fixing the sleeve on the welding rotary worktable;
setting welding process parameters; the welding process parameters comprise: wire feeding speed, welding speed, current, voltage, CMT/P, welding gun inclination angle, protective gas flow and welding dilution rate;
and (6) welding.
2. The method of claim 1, wherein the wire feed speed is 6.0-8.0 m/min, the welding speed is 36-48 cm/min, the current is 135-183A, the voltage is 20.3-23.3V, the CMT/P is 1:10, 1:15 or 1:20, the torch inclination angle is 15 °, the shielding gas flow is Ar shielding gas flow, and the shielding gas flow rate is 20L/min.
3. The method of making a nickel-base alloy coating of claim 1 or claim, wherein the utilizing is performed by
Determining the weld dilution ratio; where D is the weld dilution, As is the area of the molten parent metal, Af is the area of the weld overlay, and the parent metal is a P110 tube.
4. The method of making a nickel-base alloy coating of claim 1 wherein the welding equipment is a FRONIUS CMT welder, the wire is ERNiCrMo-3, and the wire has a diameter of 1.2 mm.
5. The method of making a nickel-base alloy coating of claim 1 wherein the wire has a dry elongation of 13mm to 15 mm.
6. The method of making a nickel-base alloy coating of claim 1 wherein the casing inner wall is ground using an angle grinder loaded grinding plate.
7. A processor, disposed on a welding apparatus, for executing instructions for producing a nickel-base alloy coating.
8. A medium disposed in the processor of claim 7 for storing instructions for producing a nickel-base alloy coating.
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| CN202110961947.9A CN113579418A (en) | 2021-08-20 | 2021-08-20 | Method for manufacturing nickel-based alloy coating, processor and medium |
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| CN202110961947.9A CN113579418A (en) | 2021-08-20 | 2021-08-20 | Method for manufacturing nickel-based alloy coating, processor and medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112549A (en) * | 2022-06-17 | 2022-09-27 | 天津大学 | Sampling method for evaluation test of corrosion resistance of metal surfacing layer |
| US11926002B1 (en) | 2022-11-11 | 2024-03-12 | Tianjin University | CMT automatic overlaying method for opening in side wall of bimetallic composite pipe |
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| US11926002B1 (en) | 2022-11-11 | 2024-03-12 | Tianjin University | CMT automatic overlaying method for opening in side wall of bimetallic composite pipe |
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