CN110952090A - Piercing plug made of metal-based composite material - Google Patents
Piercing plug made of metal-based composite material Download PDFInfo
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- CN110952090A CN110952090A CN201911341624.9A CN201911341624A CN110952090A CN 110952090 A CN110952090 A CN 110952090A CN 201911341624 A CN201911341624 A CN 201911341624A CN 110952090 A CN110952090 A CN 110952090A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- 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
- Y02P10/20—Recycling
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- Crystallography & Structural Chemistry (AREA)
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- Powder Metallurgy (AREA)
Abstract
The invention discloses a metal matrix composite material piercing plug which comprises a plug body, wherein a cladding layer is arranged on the outer surface of the plug body. According to the invention, metal powder is cladded on the outer surface of the plug body by adopting a laser cladding additive manufacturing technology to form a cladding layer with a smooth surface and firmly metallurgically bonded with the plug body, so that the performances of wear resistance, high temperature resistance, impact resistance, corrosion resistance and the like of the plug are greatly improved, the service life of the plug is more than 3 times that of a casting plug and more than 2 times that of a hot-work die steel plug, more than 400 alloy steel pipes can be penetrated, the service life of the plug is prolonged, the quality of the inner wall of the pipe is improved, the rejection rate of the pipe fitting is reduced by 50%, the comprehensive benefits are high, and the purpose of comprehensively reducing the cost can be realized.
Description
Technical Field
The invention belongs to the technical field of seamless steel pipe perforation, and particularly relates to a metal-based composite material perforation plug.
Background
At present, the plug widely used by domestic seamless steel pipe enterprises mainly comprises structural steel, alloy structural steel, hot-work die steel and the like, and the plug made of the materials has the problems of nose collapse, steel adhesion, cracking, nose deviation, pit marks, meat falling and the like, so that the service life of the plug is shortened; and the inner wall of the pipeline can be scratched due to the head collapse, steel sticking, cracking, nose deviation, pit marks and meat falling on the surface of the top, the scratching of the inner wall of the pipeline can increase the workload of subsequent processing, and serious people can also cause the pipe to be scrapped, so that the yield and the quality of the steel pipe production are directly influenced, and the price of the steel pipe is also influenced.
Disclosure of Invention
The invention aims to provide a metal matrix composite material piercing plug, which aims to solve the problems that the plugs in the prior art have nose collapse, steel sticking, cracking, nose deviation, pit marks, meat falling and the like, so that the service life of the plug is shortened; and the inner wall of the pipeline can be scratched due to the head collapse, the steel sticking, the cracking, the deviation from the nose, the pit mark and the meat falling on the surface of the top head, the scratching of the inner wall of the pipeline can increase the workload of subsequent processing, and serious people can also cause the pipe to be scrapped, so that the yield and the quality of the steel pipe production are directly influenced, and the price of the steel pipe is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the metal matrix composite material piercing plug comprises a plug body, wherein a cladding layer is arranged on the outer surface of the plug body.
Preferably, the plug body is made of H13, 20CrNi4 and 30CrNi3 serving as base materials.
Preferably, the plug body is bullet-shaped.
Preferably, the thickness of the cladding layer is 10-30 μm.
Preferably, the formula of the metal powder of the cladding layer according to the weight ratio is as follows:
65-75% of the material A, 8-12% of the material B and 17-23% of the material C.
Preferably, the material A comprises 1.65-2.65% of carbon, 1.35-1.95% of vanadium, 0.5-0.75% of molybdenum and the balance of iron according to weight ratio;
the material B is nickel-coated chromium carbide, wherein the content of chromium carbide accounts for 80-90% and the content of nickel accounts for 10-20% in terms of weight ratio;
the material C is cobalt-coated tungsten carbide, wherein the cobalt content accounts for 6-10% and the tungsten carbide content accounts for 90-94% in terms of weight ratio.
Preferably, the method for preparing the metal powder of the cladding layer comprises the following steps:
s1, adding the cast iron material into a high-frequency furnace, heating to 1400-1600 ℃, respectively wrapping ferrovanadium powder and ferromolybdenum powder by using iron sheets, adding the ferrovanadium powder bag into molten iron for melting and uniformly stirring, adding the ferromolybdenum bag into the molten iron for cladding and uniformly stirring, standing for deslagging, atomizing the melted molten iron by using a gas atomization method for preparing powder, and performing particle size sorting on the powder to obtain a material A;
s2, preparing nickel powder by a gas atomization method after smelting electrolytic nickel by a high-frequency furnace, and blowing in 1-5 um chromium carbide fine powder in the transmission process of atomization gas to mix the chromium carbide powder and a nickel solution to obtain nickel-coated chromium carbide powder, thereby obtaining a material B;
s3, mixing 10-15 um cobalt powder and tungsten carbide powder, adding 8-10% of mixed solution of polypropylene and a high-temperature curing agent, further mixing, atomizing the solution by using a high-pressure air gun, setting the temperature of an atomization bin to be 140-160 ℃, curing the atomized powder, putting the atomized and cured mixed powder into a vacuum furnace, degreasing for 4-6 hours by using a 500 degreasing agent, raising the temperature to 950-1050 ℃, preserving the heat for 30-60 minutes, and sintering to obtain the material C.
And S4, mixing the material A, the material B and the material C according to the proportion requirement for 0.75-1.25 hours in a V-shaped mixer under the nitrogen protection atmosphere, and uniformly mixing to obtain a finished product.
Preferably, the cladding method of the plug body and the cladding layer comprises the following steps:
s1, fixing the plug body to be processed on a turning machine, cutting and polishing the part to be clad through a cutting technology, and removing rust, oil and oxide skin on the surface;
s2, placing the plug body into an annealing furnace, heating until the temperature reaches 480-520 ℃, preserving the heat for 1-3 hours, closing a heating system of the annealing furnace, and taking out the matrix from the annealing furnace when naturally cooling to 40-50 ℃;
s3, polishing the plug body by using a polishing machine, and polishing oxide skin generated in annealing;
s4, clamping the plug body on laser cladding equipment, and compiling a cladding program;
and S5, carrying out laser cladding on the cladding layer, wherein the laser power is 1200-1800W, and the cladding speed is 80-90 mm/min, so that the preparation of the cladding layer on the outer surface of the plug body can be completed.
Preferably, in S1, after the part to be clad is cut and polished by a cutting technique, PT detection is performed on the plug body.
Preferably, before laser cladding of the cladding layer in S5, the oxygen, nitrogen and hydrogen content of the metal powder should be lower than 0.05% by detecting the metal powder with an oxygen, nitrogen and hydrogen analyzer.
Compared with the prior art, the metal matrix composite piercing plug provided by the invention has the following advantages:
according to the invention, metal powder is cladded on the outer surface of the plug body by adopting a laser cladding additive manufacturing technology to form a cladding layer with a smooth surface and firmly metallurgically bonded with the plug body, so that the performances of wear resistance, high temperature resistance, impact resistance, corrosion resistance and the like of the plug are greatly improved, the service life of the plug is more than 3 times that of a casting plug and more than 2 times that of a hot-work die steel plug, more than 400 alloy steel pipes can be penetrated, the service life of the plug is prolonged, the quality of the inner wall of the pipe is improved, the rejection rate of the pipe fitting is reduced by 50%, the comprehensive benefits are high, and the purpose of comprehensively reducing the cost can be realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a plug body; 2. and (4) cladding the layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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 provides a metal matrix composite material perforating plug shown in figure 1, which comprises a plug body 1, wherein a cladding layer 2 is arranged on the outer surface of the plug body 1, the plug body 1 is made of H13, 20CrNi4 and 30CrNi3 serving as base materials, the plug body 1 is bullet-shaped, and the thickness of the cladding layer 2 is 10-30 microns.
The formula of the metal powder of the cladding layer 2 by weight ratio is as follows:
65-75% of the material A, 8-12% of the material B and 17-23% of the material C.
The material A comprises 1.65-2.65% of carbon, 1.35-1.95% of vanadium, 0.5-0.75% of molybdenum and the balance of iron in percentage by weight;
the material B is nickel-coated chromium carbide, wherein the content of chromium carbide accounts for 80-90% and the content of nickel accounts for 10-20% in terms of weight ratio;
the material C is cobalt-coated tungsten carbide, wherein the cobalt content accounts for 6-10% and the tungsten carbide content accounts for 90-94% in terms of weight ratio.
The preparation method of the metal powder of the cladding layer 2 comprises the following steps:
s1, adding the cast iron material into a high-frequency furnace, heating to 1400-1600 ℃, respectively wrapping ferrovanadium powder and ferromolybdenum powder by using iron sheets, adding the ferrovanadium powder bag into molten iron for melting and uniformly stirring, adding the ferromolybdenum bag into the molten iron for cladding and uniformly stirring, standing for deslagging, atomizing the melted molten iron by using a gas atomization method for preparing powder, and performing particle size sorting on the powder to obtain a material A;
s2, preparing nickel powder by a gas atomization method after smelting electrolytic nickel by a high-frequency furnace, and blowing in 1-5 um chromium carbide fine powder in the transmission process of atomization gas to mix the chromium carbide powder and a nickel solution to obtain nickel-coated chromium carbide powder, thereby obtaining a material B;
s3, mixing 10-15 um cobalt powder and tungsten carbide powder, adding 8-10% of mixed solution of polypropylene and a high-temperature curing agent, further mixing, atomizing the solution by using a high-pressure air gun, setting the temperature of an atomization bin to be 140-160 ℃, curing the atomized powder, putting the atomized and cured mixed powder into a vacuum furnace, degreasing for 4-6 hours by using a 500 degreasing agent, raising the temperature to 950-1050 ℃, preserving the heat for 30-60 minutes, and sintering to obtain the material C.
And S4, mixing the material A, the material B and the material C according to the proportion requirement for 0.75-1.25 hours in a V-shaped mixer under the nitrogen protection atmosphere, and uniformly mixing to obtain a finished product.
The cladding method of the plug body 1 and the cladding layer 2 comprises the following steps:
s1, fixing the plug body to be processed on a turning machine, cutting and polishing the part to be clad through a cutting technology, removing rust, oil and oxide skin on the surface, and carrying out PT detection on the plug body so as to ensure that the original coating of the part to be clad is completely separated;
s2, placing the plug body into an annealing furnace, heating to raise the temperature until the temperature reaches 480-520 ℃, preserving the heat for 1-3 hours, closing a heating system of the annealing furnace, and taking out the matrix from the annealing furnace when naturally cooling to 40-50 ℃, so as to ensure that the temperature of the plug body is uniform inside and outside, and be beneficial to avoiding cracking of a cladding layer;
s3, polishing the plug body by using a polishing machine, and polishing oxide skin generated in annealing;
s4, clamping the plug body on laser cladding equipment, and compiling a cladding program which requires that the cladding process is coherent and the speed is adjustable;
s5, detecting the metal powder by adopting an oxygen, nitrogen and hydrogen analyzer, wherein the content of oxygen, nitrogen and hydrogen in the metal powder is lower than 0.05%, carrying out laser cladding on the cladding layer, wherein the laser power is 1200-1800W, the coating is easy to crack when the power is too high or too low, the cladding defect can be caused when the power is too low, and the cladding speed is 80-90 mm/min, so that the preparation of the cladding layer on the outer surface of the plug body can be completed.
In summary, the following steps: according to the invention, metal powder is cladded on the outer surface of the plug body by adopting a laser cladding additive manufacturing technology to form a cladding layer with a smooth surface and firmly metallurgically bonded with the plug body, so that the performances of wear resistance, high temperature resistance, impact resistance, corrosion resistance and the like of the plug are greatly improved, the service life of the plug is more than 3 times that of a casting plug and more than 2 times that of a hot-work die steel plug, more than 400 alloy steel pipes can be penetrated, the service life of the plug is prolonged, the quality of the inner wall of the pipe is improved, the rejection rate of the pipe fitting is reduced by 50%, the comprehensive benefits are high, and the purpose of comprehensively reducing the cost can be realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a metal matrix composite material top of perforating, includes top body (1), its characterized in that: the outer surface of the plug body (1) is provided with a cladding layer (2).
2. The metal matrix composite piercing plug of claim 1, wherein: the plug body (1) is made of H13, 20CrNi4 and 30CrNi3 serving as base materials.
3. The metal matrix composite piercing plug of claim 1, wherein: the top body (1) is bullet-shaped.
4. The metal matrix composite piercing plug of claim 1, wherein: the thickness of the cladding layer (2) is 10-30 mu m.
5. The metal matrix composite piercing plug of claim 4, wherein: the formula of the metal powder of the cladding layer (2) is as follows according to the weight ratio:
65-75% of the material A, 8-12% of the material B and 17-23% of the material C.
6. The metal matrix composite piercing plug of claim 5, wherein: the material A comprises 1.65-2.65% of carbon, 1.35-1.95% of vanadium, 0.5-0.75% of molybdenum and the balance of iron in percentage by weight;
the material B is nickel-coated chromium carbide, wherein the content of chromium carbide accounts for 80-90% and the content of nickel accounts for 10-20% in terms of weight ratio;
the material C is cobalt-coated tungsten carbide, wherein the cobalt content accounts for 6-10% and the tungsten carbide content accounts for 90-94% in terms of weight ratio.
7. The metal matrix composite piercing plug of claim 6, wherein: the preparation method of the metal powder of the cladding layer (2) comprises the following steps:
s1, adding the cast iron material into a high-frequency furnace, heating to 1400-1600 ℃, respectively wrapping ferrovanadium powder and ferromolybdenum powder by using iron sheets, adding the ferrovanadium powder bag into molten iron for melting and uniformly stirring, adding the ferromolybdenum bag into the molten iron for cladding and uniformly stirring, standing for deslagging, atomizing the melted molten iron by using a gas atomization method for preparing powder, and performing particle size sorting on the powder to obtain a material A;
s2, preparing nickel powder by a gas atomization method after smelting electrolytic nickel by a high-frequency furnace, and blowing in 1-5 um chromium carbide fine powder in the transmission process of atomization gas to mix the chromium carbide powder and a nickel solution to obtain nickel-coated chromium carbide powder, thereby obtaining a material B;
s3, mixing 10-15 um cobalt powder and tungsten carbide powder, adding 8-10% of mixed solution of polypropylene and a high-temperature curing agent, further mixing, atomizing the solution by using a high-pressure air gun, setting the temperature of an atomization bin to be 140-160 ℃, curing the atomized powder, putting the atomized and cured mixed powder into a vacuum furnace, degreasing for 4-6 hours by using a 500 degreasing agent, raising the temperature to 950-1050 ℃, preserving the heat for 30-60 minutes, and sintering to obtain the material C.
And S4, mixing the material A, the material B and the material C according to the proportion requirement for 0.75-1.25 hours in a V-shaped mixer under the nitrogen protection atmosphere, and uniformly mixing to obtain a finished product.
8. The metal matrix composite piercing plug of claim 6, wherein: the cladding method of the plug body (1) and the cladding layer (2) comprises the following steps:
s1, fixing the plug body to be processed on a turning machine, cutting and polishing the part to be clad through a cutting technology, and removing rust, oil and oxide skin on the surface;
s2, placing the plug body into an annealing furnace, heating until the temperature reaches 480-520 ℃, preserving the heat for 1-3 hours, closing a heating system of the annealing furnace, and taking out the matrix from the annealing furnace when naturally cooling to 40-50 ℃;
s3, polishing the plug body by using a polishing machine, and polishing oxide skin generated in annealing;
s4, clamping the plug body on laser cladding equipment, and compiling a cladding program;
and S5, carrying out laser cladding on the cladding layer, wherein the laser power is 1200-1800W, and the cladding speed is 80-90 mm/min, so that the preparation of the cladding layer on the outer surface of the plug body can be completed.
9. The metal matrix composite piercing plug of claim 8, wherein: and in the S1, after the part to be clad is cut and polished by a cutting technology, PT detection is carried out on the top body.
10. The metal matrix composite piercing plug of claim 8, wherein: before laser cladding of the cladding layer in the S5, an oxygen, nitrogen and hydrogen analyzer is adopted to detect the metal powder, and the content of oxygen, nitrogen and hydrogen in the metal powder is lower than 0.05%.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113373439A (en) * | 2021-05-28 | 2021-09-10 | 西安科技大学 | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof |
CN114273674A (en) * | 2021-12-27 | 2022-04-05 | 扬州诚德钢管有限公司 | Method for manufacturing seamless steel pipe piercing plug through laser additive |
CN115491670A (en) * | 2022-08-18 | 2022-12-20 | 江苏华洋新思路能源装备股份有限公司 | Seamless steel pipe piercing plug |
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CN113373439A (en) * | 2021-05-28 | 2021-09-10 | 西安科技大学 | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof |
CN114273674A (en) * | 2021-12-27 | 2022-04-05 | 扬州诚德钢管有限公司 | Method for manufacturing seamless steel pipe piercing plug through laser additive |
CN115491670A (en) * | 2022-08-18 | 2022-12-20 | 江苏华洋新思路能源装备股份有限公司 | Seamless steel pipe piercing plug |
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Inventor after: Wang Dewei Inventor after: Wang Dekui Inventor after: Huang Zhongjia Inventor after: Liu Haiyan Inventor after: Sun Quan Inventor before: Wang Dekui Inventor before: Wang Dewei Inventor before: Huang Zhongjia Inventor before: Liu Haiyan Inventor before: Sun Quan |