CN117987746A - Wear-resistant seamless steel pipe perforating plug and preparation method thereof - Google Patents

Wear-resistant seamless steel pipe perforating plug and preparation method thereof Download PDF

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CN117987746A
CN117987746A CN202410357567.8A CN202410357567A CN117987746A CN 117987746 A CN117987746 A CN 117987746A CN 202410357567 A CN202410357567 A CN 202410357567A CN 117987746 A CN117987746 A CN 117987746A
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seamless steel
plug
wear
steel tube
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CN117987746B (en
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吕小军
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Nantong Jiaye Machinery Manufacturing Co ltd
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/04Making ferrous alloys by melting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06Metallic material
    • C23C4/08Metallic material containing only metal elements
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134Plasma spraying

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to the technical field of metal materials, and discloses a wear-resistant seamless steel pipe perforating plug and a preparation method thereof, wherein rare earth elements in a molten steel purifying agent can reduce O, S content in steel, improve toughness and hardness of the steel, simultaneously, deoxidization capability of magnesium and aluminum is obviously stronger than desulfurization capability, magnesium-cerium alloy synergistic treatment can change the types of inclusions in the molten steel, reduce the aggregation and floating capability of the inclusions, improve the purification degree of the molten steel, refine grains after solidification of the molten steel and improve the strength of the plug; the zirconium-chromium powder prepared by plasma spraying can effectively resist the abrasion of external abrasive particles in the friction and abrasion process of the perforating plug, greatly limit crack sources generating abrasion microcracks and crack propagation paths during abrasion, lighten the abrasion of the abrasive particles to a coating, prevent early failure behaviors such as cracking and the like at high temperature, and further improve the abrasion resistance and high temperature resistance of the perforating plug of the seamless steel tube.

Description

Wear-resistant seamless steel pipe perforating plug and preparation method thereof
Technical Field
The invention relates to the technical field of metal materials, in particular to a wear-resistant seamless steel tube piercing plug and a preparation method thereof.
Background
The seamless steel pipe industry occupies an important component of national economy, the perforating plug is one of the key tools with the largest consumption in the seamless steel pipe production, in the pipe penetrating process, the perforating plug is directly contacted with a high-temperature billet, the temperature of the nose part of the plug is about 1300 ℃ in the finish rolling process, the effect of huge axial pressure, radial stress and surface friction force is born, and the perforating plug must be forced to be cooled by water every time the pipe penetrating plug is finished, and under the severe working environment of high temperature, high pressure and rapid heating, the perforating plug is subjected to the comprehensive effects of mechanical fatigue and thermal fatigue, so that the perforating plug has failure modes such as nose collapse, steel sticking, cracking and the like, the yield, the quality, the economic benefit and the like of the steel pipe production are seriously influenced, and therefore, the development of the perforating plug with high quality has become an important subject in the steel pipe production.
The traditional plug material is made of high alloy die steel or molybdenum alloy, and the high alloy die steel has higher hardness and strength at high temperature, but is easy to crack in a rapid cooling and heating working environment, and has shorter service life; the molybdenum alloy plug material has higher cost and is not suitable for large-scale use; at present, an iron oxide film is prefabricated on the surface of a plug by pre-oxidation treatment to prevent a plug matrix from being in direct contact with a tube blank, so that a certain heat insulation effect is achieved, however, the iron oxide film has a loose structure and is easy to crack, and has poor oxidation resistance, adhesiveness and high-temperature stability, so that the industrial problem of quick failure of the plug is difficult to effectively solve by the pre-oxidation treatment; patent number CN101603154a discloses a new material of steel pipe thermal piercing plug, which properly increases Mo and W content on the basis of low alloy, and simultaneously adds Al and rare earth element Ce, and has lower cost compared with the high alloy steel, the new material improves the properties of hardness, strength, toughness, etc. of the new material of piercing plug to a certain extent, but the wear resistance and temperature resistance are not obviously improved, so that the service life of piercing plug is not long.
The perforating plug is a consumable product, the manufacturing process is complex, the manufacturing cost is high, and the preparation of the protective coating on the surface of the plug is an effective method for protecting the plug and ensuring the dimensional accuracy of the plug; according to the invention, by optimizing the components of the plug and adding a proper amount of molten steel purifying agent, the cleanliness is improved, the consumption of precious alloy elements is reduced, and the cost is saved; and then carrying out heat treatment by adopting proper annealing, quenching and tempering processes, preparing chromium zirconium powder with excellent wear resistance by a non-hydrolytic sol-gel method, and carrying out surface treatment by adopting plasma spraying to obtain the wear-resistant and high-temperature-resistant seamless steel tube piercing plug.
Disclosure of Invention
The invention solves the technical problems that: the wear-resistant seamless steel tube piercing plug and the preparation method thereof are provided, and the problem that the existing seamless steel tube piercing plug is poor in wear resistance and high temperature resistance is solved.
The technical scheme of the invention is as follows:
The wear-resistant seamless steel tube piercing plug comprises the following components in percentage by mass: 0.28 to 0.42 percent of pure carbon, 0.45 to 0.78 percent of pure silicon, 0.31 to 0.52 percent of metal manganese, 1.85 to 2.63 percent of metal chromium, 0.33 to 0.54 percent of metal vanadium, 2.23 to 2.89 percent of metal nickel, 0.15 to 0.25 percent of metal tungsten, 0.01 to 0.1 percent of pure nitrogen, 0.03 to 0.15 percent of molten steel purifying agent and the balance of metal iron.
The preparation method of the wear-resistant seamless steel tube piercing plug comprises the following steps:
(1) Preparing a seamless steel tube perforating plug matrix: adding the components in the proportion into a medium frequency induction furnace, heating and smelting, pouring the mixture onto a preheated stainless steel die after the mixture is completely melted, vacuumizing and vacuum casting, and placing the mixture into a muffle furnace at 500-650 ℃ for heat preservation for 30-50min after molding to obtain a seamless steel pipe perforating plug matrix.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube perforating plug matrix in a muffle furnace, heating at a speed of 3-6 ℃/min for quenching, cooling at a speed of 6-10 ℃/min for tempering, discharging and air cooling to obtain a seamless steel tube perforating plug primary product.
(3) Preparation of zirconium chromium powder: adding zirconium chloride and absolute ethyl alcohol into a reaction flask, uniformly mixing, adding chromium carbonate, stirring for reaction, performing reduced pressure distillation after the reaction is finished to obtain white sandy particles, roasting at 600-800 ℃ for 1-3h, and cooling to room temperature to obtain zirconium-chromium powder.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removing and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, a nozzle and an electrode of the spray gun are respectively connected with the positive electrode and the negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by means of high-frequency spark, zirconium-chromium powder is fed into the plasma jet from the nozzle by the powder-feeding gas, the powder-feeding gas is heated to a molten state, and the zirconium-chromium powder is sprayed onto the surface of the primary finished product of the seamless steel tube perforating plug, so that a zirconium-chromium coating with the thickness of 1-5mm is formed, and the wear-resistant seamless steel tube perforating plug is obtained.
Further, the molten steel purifying agent is any one of magnesium-cerium alloy, rhenium-magnesium alloy or lanthanum-aluminum alloy.
Further, in the step (1), the smelting temperature is 950-1100 ℃ and the smelting time is 1-3h.
Further, in the step (2), the quenching temperature is 900-1050 ℃ and the quenching time is 3-6h.
Further, in the step (2), the tempering temperature is 550-700 ℃ and the tempering time is 1-4h.
Further, in the step (3), the proportion relation of zirconium chloride and chromium carbonate is 1mol (1.1-1.4 mol).
Further, the reaction temperature in the step (3) is 60-70 ℃ and the reaction time is 5-10h.
Further, the powder feeding gas in the step (4) is any one of argon, hydrogen, helium and nitrogen.
Further, the spraying power of the plasma spray gun in the step (4) is 25-35kW, the working voltage is 55-65V, and the working current is 450-550A.
Further, the powder feeding air flow in the step (4) is 280-320L/h, and the powder feeding speed is 5-8g/min.
The beneficial technical effects of the invention are as follows:
according to the invention, the components of the seamless steel pipe perforating plug are optimally designed, and a proper amount of molten steel purifying agent is added, so that the consumption of precious alloy elements is reduced, and the metal material is reinforced; adopting proper annealing, quenching, tempering and other heat treatment processes, adopting a non-hydrolytic sol-gel method to prepare chromium zirconium powder with excellent wear resistance, and carrying out plasma spraying treatment on the surface of the seamless steel tube piercing plug to obtain the wear-resistant seamless steel tube piercing plug, thereby simplifying the process and reducing the cost.
Rare earth elements in the molten steel purifying agent react with O, S in the molten steel to generate rare earth oxide, rare earth oxysulfide and rare earth sulfide inclusions, O, S content in the molten steel is reduced, the dispersed fine spherical rare earth sulfide inclusions can replace strip MnS inclusions in the steel, toughness and corrosion resistance of the steel are improved, meanwhile, deoxidization capability of magnesium and aluminum is obviously higher than desulfurization capability, magnesium-cerium alloy synergistic treatment can change the types of inclusions in the molten steel, reduce aggregation and floating capability of the inclusions, improve the purification degree of the molten steel, further separate out fine and dispersed high-melting-point compounds before solidification of the molten steel, reduce supercooling degree of the molten steel, refine grains after solidification of the molten steel and improve strength of the steel; in addition, the radius of the rare earth element is larger, the rare earth element is difficult to diffuse in the crystal grains, and the rare earth atoms which are biased at the crystal boundary can also play a role in pinning the crystal boundary, so that the hardness of the piercing plug is improved.
The zirconium-chromium coating has excellent wear resistance, can be used as a hard phase, can effectively resist the abrasion of external abrasive particles in the friction and abrasion process, greatly limits crack sources of abrasion microcracks and crack propagation paths during abrasion, can change sliding friction and chiseling of part of abrasive particles on the surface of the coating into rolling, reduces the abrasion of the abrasive particles on the coating, and further improves the wear resistance of the seamless steel pipe perforating plug; the plasma spraying heats the thermal spraying material to a plastic state or a molten state, and then the thermal spraying material is accelerated by compressed air, so that the constrained particle beam is impacted on the surface of the matrix, particles impacted on the surface are deformed due to stamping to form laminated sheets, the laminated sheets are adhered on the surface of the prepared matrix, and then the laminated sheets are cooled and continuously stacked to finally form a layered coating, thereby realizing the functions of high temperature resistance, abrasion resistance and the like of the perforated plug material.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
(1) Preparing a seamless steel tube perforating plug matrix: the method comprises the steps of adding pure carbon accounting for 0.31 percent, pure silicon accounting for 0.52 percent, metal manganese accounting for 0.35 percent, metal chromium accounting for 2.24 percent, metal vanadium accounting for 0.46 percent, metal nickel accounting for 2.58 percent, metal tungsten accounting for 0.20 percent, pure nitrogen accounting for 0.03 percent, magnesium-cerium alloy accounting for 0.03 percent and the balance of metal iron into an intermediate frequency induction electric furnace, heating to 1050 ℃ for smelting for 2 hours, pouring the mixture onto a preheated stainless steel die after complete smelting, vacuumizing for vacuum casting, and placing the mixture in a muffle furnace at 550 ℃ for heat preservation for 40 minutes after molding to obtain a seamless steel pipe perforating top matrix.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube piercing plug matrix in a muffle furnace, heating to 1000 ℃ at a speed of 5 ℃/min for quenching for 5 hours, cooling to 650 ℃ at a speed of 8 ℃/min for tempering for 3 hours, discharging and air cooling to obtain a seamless steel tube piercing plug primary product.
(3) Preparation of zirconium chromium powder: 5mmol of zirconium chloride and 40mL of absolute ethyl alcohol are added into a reaction flask, after being uniformly mixed, 6.2mmol of chromium carbonate is added, the reaction time is 9 hours at65 ℃, white sandy particles are obtained through reduced pressure distillation, then the mixture is baked at 700 ℃ and kept at the temperature for 2 hours, and the mixture is cooled to the room temperature, so that zirconium chromium powder is obtained.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removal and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, the spraying power is 30kW, the working voltage is 60V, the working current is 500A, a nozzle and an electrode of the spray gun are respectively connected with a positive electrode and a negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by high-frequency spark, zirconium chromium powder is fed into the plasma spray from the nozzle by argon, the flow is 310L/h, the speed is 6g/min, the heating is carried out to a molten state, and the zirconium chromium coating with the thickness of 1mm is sprayed on the surface of the primary finished product of the seamless steel tube perforating plug, so that the wear-resistant seamless steel tube perforating plug is obtained.
Examples
(1) Preparing a seamless steel tube perforating plug matrix: pure carbon accounting for 0.28 percent, pure silicon accounting for 0.78 percent, metal manganese accounting for 0.52 percent, metal chromium accounting for 1.85 percent, metal vanadium accounting for 0.54 percent, metal nickel accounting for 2.89 percent, metal tungsten accounting for 0.15 percent, pure nitrogen accounting for 0.07 percent, rhenium-magnesium alloy accounting for 0.06 percent and the balance of metal iron are added into an intermediate frequency induction furnace, heated to 1100 ℃ for smelting for 1h, poured onto a preheated stainless steel die after being completely melted, vacuumized for vacuum casting, molded and placed into a muffle furnace at 650 ℃ for heat preservation for 30min, and then the seamless steel tube perforating top matrix is obtained.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube piercing plug matrix in a muffle furnace, heating to 1050 ℃ at a speed of 6 ℃/min for quenching for 3 hours, cooling to 700 ℃ at a speed of 10 ℃/min for tempering for 1 hour, discharging and air cooling to obtain a seamless steel tube piercing plug primary product.
(3) Preparation of zirconium chromium powder: to the reaction flask, 12mmol of zirconium chloride and 60mL of absolute ethyl alcohol were added, after mixing uniformly, 13.2mmol of chromium carbonate was added, the reaction time was 5 hours at 70℃and white sandy particles were obtained by distillation under reduced pressure, followed by calcination and heat preservation at 800℃for 1 hour, and cooling to room temperature, to obtain zirconium chromium powder.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removal and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, the spraying power is 35kW, the working voltage is 55V, the working current is 450A, a nozzle and an electrode of the spray gun are respectively connected with a positive electrode and a negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by high-frequency spark, zirconium chromium powder is fed into the plasma spray from the nozzle by hydrogen, the flow is 320L/h, the speed is 8g/min, the heating is carried out to a molten state, and the zirconium chromium coating with the thickness of 1mm is sprayed on the surface of the primary finished product of the seamless steel tube perforating plug, so that the wear-resistant seamless steel tube perforating plug is obtained.
Examples
(1) Preparing a seamless steel tube perforating plug matrix: the method comprises the steps of adding 0.42% of pure carbon, 0.45% of pure silicon, 0.31% of metal manganese, 2.63% of metal chromium, 0.33% of metal vanadium, 2.23% of metal nickel, 0.25% of metal tungsten, 0.1% of pure nitrogen, 0.09% of lanthanum-aluminum alloy and the balance of metal iron into an intermediate frequency induction electric furnace, heating to 950 ℃ for smelting for 3 hours, pouring the alloy onto a preheated stainless steel die after complete smelting, vacuumizing for vacuum casting, and placing the alloy in a muffle furnace at 500 ℃ for heat preservation for 50 minutes after molding to obtain a seamless steel pipe perforating top matrix.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube piercing plug substrate in a muffle furnace, heating to 900 ℃ at a speed of 3 ℃/min, quenching for 6 hours, cooling to 550 ℃ at a speed of 6 ℃/min, tempering for 4 hours, discharging, and air cooling to obtain a seamless steel tube piercing plug primary product.
(3) Preparation of zirconium chromium powder: 8mmol of zirconium chloride and 80mL of absolute ethyl alcohol are added into a reaction flask, after being uniformly mixed, 11.2mmol of chromium carbonate is added, the reaction time is 10 hours at 60 ℃, white sandy particles are obtained through reduced pressure distillation, then the mixture is baked at 600 ℃ and kept at the temperature for 3 hours, and the mixture is cooled to the room temperature, so that zirconium chromium powder is obtained.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removal and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, the spraying power is 25kW, the working voltage is 65V, the working current is 550A, a nozzle and an electrode of the spray gun are respectively connected with a positive electrode and a negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by high-frequency spark, zirconium chromium powder is fed into the plasma spray from the nozzle by helium, the flow is 280L/h, the speed is 5g/min, the heating is carried out to a molten state, and the zirconium chromium coating with the thickness of 1mm is sprayed on the surface of the primary finished product of the seamless steel tube perforating plug, so that the wear-resistant seamless steel tube perforating plug is obtained.
Examples
(1) Preparing a seamless steel tube perforating plug matrix: the method comprises the steps of adding 0.35% of pure carbon, 0.62% of pure silicon, 0.49% of metal manganese, 2.25% of metal chromium, 0.42% of metal vanadium, 2.66% of metal nickel, 0.18% of metal tungsten, 0.08% of pure nitrogen, 0.12% of magnesium-cerium alloy and the balance of metal iron into an intermediate frequency induction electric furnace, heating to 1080 ℃ for smelting for 2 hours, pouring the molten alloy onto a preheated stainless steel die after complete smelting, vacuumizing for vacuum casting, and placing the molten alloy in a muffle furnace at 560 ℃ for heat preservation for 45 minutes after molding to obtain a seamless steel pipe perforating top matrix.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube piercing plug matrix in a muffle furnace, heating to 980 ℃ at a speed of 4 ℃/min, quenching for 6 hours, cooling to 650 ℃ at a speed of 8 ℃/min, tempering for 3 hours, discharging, and air cooling to obtain a seamless steel tube piercing plug primary product.
(3) Preparation of zirconium chromium powder: 3mmol of zirconium chloride and 27mL of absolute ethyl alcohol are added into a reaction flask, after being uniformly mixed, 3.78mmol of chromium carbonate is added, the reaction time is 8 hours at 70 ℃, white sandy particles are obtained through reduced pressure distillation, then the mixture is baked at 720 ℃ and kept at the temperature for 3 hours, and the mixture is cooled to the room temperature, so that zirconium chromium powder is obtained.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removal and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, the spraying power is 28kW, the working voltage is 62V, the working current is 520A, a nozzle and an electrode of the spray gun are respectively connected with a positive electrode and a negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by high-frequency spark, zirconium chromium powder is fed into the plasma spray from the nozzle by nitrogen, the flow is 300L/h, the speed is 6g/min, the heating is carried out to a molten state, and the zirconium chromium coating with the thickness of 1mm is sprayed on the surface of the primary finished product of the seamless steel tube perforating plug, so that the wear-resistant seamless steel tube perforating plug is obtained.
Examples
(1) Preparing a seamless steel tube perforating plug matrix: the method comprises the steps of adding 0.34% of pure carbon, 0.76% of pure silicon, 0.41% of metal manganese, 2.06% of metal chromium, 0.48% of metal vanadium, 2.79% of metal nickel, 0.23% of metal tungsten, 0.1% of pure nitrogen, 0.15% of lanthanum-aluminum alloy and the balance of metal iron into an intermediate frequency induction electric furnace, heating to 1000 ℃ for smelting for 3 hours, pouring the mixture onto a preheated stainless steel die after complete smelting, vacuumizing for vacuum casting, and placing the mixture into a muffle furnace at 600 ℃ for preserving heat for 35 minutes after molding to obtain a seamless steel pipe perforating top matrix.
(2) Preparing a seamless steel tube perforating plug primary finished product: and (3) placing the seamless steel tube piercing plug matrix in a muffle furnace, heating to 960 ℃ at a speed of 6 ℃/min for quenching 5h, cooling to 650 ℃ at a speed of 8 ℃/min for tempering 4h, discharging and air cooling to obtain a seamless steel tube piercing plug primary product.
(3) Preparation of zirconium chromium powder: 2mmol of zirconium chloride and 20mL of absolute ethyl alcohol are added into a reaction flask, after being uniformly mixed, 2.7mmol of chromium carbonate is added, the reaction time is 10 hours at 65 ℃, white sandy particles are obtained through reduced pressure distillation, then the mixture is baked at 800 ℃ and kept at the temperature for 2 hours, and the mixture is cooled to the room temperature, thus obtaining zirconium chromium powder.
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removal and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, the spraying power is 35kW, the working voltage is 60V, the working current is 480A, a nozzle and an electrode of the spray gun are respectively connected with a positive electrode and a negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by high-frequency spark, zirconium chromium powder is fed into the plasma spray from the nozzle by argon, the flow is 310L/h, the speed is 6g/min, the heating is carried out to a molten state, and the zirconium chromium coating with the thickness of 1mm is sprayed on the surface of the primary finished product of the seamless steel tube perforating plug, so that the wear-resistant seamless steel tube perforating plug is obtained.
Comparative example 1
The comparative example is different from example 1 in that no molten steel purifying agent was added in step (1), and other conditions were kept identical.
Table 1 elements and contents of seamless Steel pipe piercing plug
Vickers hardness test: the microhardness meter is adopted to measure the Vickers hardness of the seamless steel tube perforating plug, the measuring points are positioned at the interface area of the coating surface, the matrix and the coating, the load of the used pressure head is 0.98N, and the time of the pressure head is 20s.
TABLE 2 Vickers hardness test
As shown by the test results of the table, with the increase of the content of the molten steel purifying agent, the Vickers hardness of the seamless steel pipe perforating plug is gradually improved, because rare earth elements in the molten steel purifying agent react with O, S in molten steel to generate rare earth oxides, rare earth oxysulfide and rare earth sulfide inclusions, the O, S content in the molten steel is reduced, the dispersed fine spherical rare earth sulfide inclusions can replace strip-shaped MnS inclusions in the steel, the toughness and hardness of the molten steel are improved, meanwhile, the deoxidizing capability of magnesium and aluminum is obviously higher than the desulfurizing capability, the synergistic treatment of magnesium-cerium alloy can change the types of inclusions in the molten steel, the aggregation and floating capability of the inclusions is reduced, the purifying degree of the molten steel is improved, fine and dispersed high-melting-point compounds are further separated out before the solidification of the molten steel, the supercooling degree of the molten steel is reduced, grains after the solidification of the molten steel are refined, and the strength of the perforating plug is improved; in addition, the radius of the rare earth element is larger, the rare earth element is difficult to diffuse in the crystal grains, and the rare earth atoms which are biased at the crystal boundary can also play a role in pinning the crystal boundary, so that the hardness of the piercing plug is improved; the Vickers hardness of the coating area in the data of the table is obviously higher than that of the matrix area and the junction, which indicates that the surface hardness of the perforating plug can be improved by spraying zirconium-chromium powder on the surface of the plug, and the service life of the perforating plug is further prolonged.
Examples
This example differs from example 1 in that the zirconium chromium coating in step (4) has a thickness of 2mm, the other conditions remaining the same.
Examples
This example differs from example 1 in that the zirconium chromium coating in step (4) has a thickness of 3mm, the other conditions remaining the same.
Examples
This example differs from example 1 in that the zirconium chromium coating in step (4) has a thickness of 4mm, the other conditions remaining the same.
Examples
This example differs from example 1 in that the zirconium chromium coating in step (4) has a thickness of 5mm, the other conditions remaining the same.
Comparative example 2
This comparative example differs from example 1 in that the zirconium chromium coating process was not performed and the other conditions remained the same.
Abrasion resistance test: and (3) testing the 45# steel with the grinding ring quenched and tempered at low temperature by adopting a ring block type friction testing machine, wherein the testing condition is that the normal load is 98N, the rotation speed of the testing ring is 400r/min, the wear time is 10h, and the abrasion loss of the sample is weighed by using an analytical balance.
TABLE 3 wear and hardness test
As shown by the test results of the table, the abrasion loss of the seamless steel pipe perforating plug gradually decreases along with the increase of the thickness of the zirconium-chromium coating, the abrasion loss of the perforating plug in the embodiment 9 is only 0.03g after 10 hours of abrasion, the abrasion loss reaches 1.02g when the spraying coating operation is not performed in the comparative example 2, and the abrasion is serious; the prepared zirconium-chromium coating has excellent wear resistance, can be used as a hard phase, can effectively resist the abrasion of external abrasive particles in the friction abrasion process, greatly limits crack sources and crack propagation paths of abrasion microcracks generated during abrasion, can change sliding friction and chiseling of part of abrasive particles on the surface of the coating into rolling, reduces the abrasion of the abrasive particles on the coating, and further improves the wear resistance of the seamless steel tube perforating plug.
High temperature resistance test: and (3) referring to HB7236-95 standard, heating the seamless steel pipe perforating plug test piece to 800 ℃ in a box-type resistance furnace, preserving heat for 15min, taking out, rapidly cooling to room temperature in cold water, drying, and repeating until the coating cracks or peels off, and judging the quality of the high temperature resistance and the thermal fatigue resistance of the coating according to the number of times of sustainable circulation.
Table 4 high temperature resistance test
As shown in the test data of the table, along with the increase of the thickness of the zirconium-chromium coating, the high temperature resistance of the seamless steel tube piercing plug is gradually enhanced, because the prepared zirconium-chromium coating is tightly combined with the matrix and has a small amount of micro-zone metallurgical bonding, the coating structure is more compact, cracks are not easy to expand inwards along grain boundaries under the high temperature effect, the premature failure behaviors of cracking, meat falling and the like of the piercing plug in the use process are avoided, and the service life of the piercing plug is prolonged.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.

Claims (10)

1. The wear-resistant seamless steel pipe perforating plug is characterized by comprising the following components in percentage by mass: 0.28 to 0.42 percent of pure carbon, 0.45 to 0.78 percent of pure silicon, 0.31 to 0.52 percent of metal manganese, 1.85 to 2.63 percent of metal chromium, 0.33 to 0.54 percent of metal vanadium, 2.23 to 2.89 percent of metal nickel, 0.15 to 0.25 percent of metal tungsten, 0.01 to 0.1 percent of pure nitrogen, 0.03 to 0.15 percent of molten steel purifying agent and the balance of metal iron;
The preparation method of the wear-resistant seamless steel tube piercing plug comprises the following steps:
(1) Preparing a seamless steel tube perforating plug matrix: adding the components in the proportion into a medium frequency induction furnace, heating and smelting, pouring the mixture onto a preheated stainless steel die after the mixture is completely melted, vacuumizing and vacuum casting, and placing the mixture in a muffle furnace at 500-650 ℃ for heat preservation for 30-50min after molding to obtain a seamless steel pipe perforating plug matrix;
(2) Preparing a seamless steel tube perforating plug primary finished product: placing the seamless steel tube perforating plug matrix in a muffle furnace, heating at a speed of 3-6 ℃/min for quenching, then cooling at a speed of 6-10 ℃/min for tempering, discharging and air cooling to obtain a seamless steel tube perforating plug primary product;
(3) Preparation of zirconium chromium powder: adding zirconium chloride and absolute ethyl alcohol into a reaction flask, uniformly mixing, adding chromium carbonate, stirring for reaction, performing reduced pressure distillation to obtain white sandy particles after the reaction is finished, roasting at 600-800 ℃ for 1-3h, and cooling to room temperature to obtain zirconium-chromium powder;
(4) Preparing a wear-resistant seamless steel tube perforating plug: after cleaning, rust removing and sand blasting coarsening treatment are carried out on the surface of a primary finished product of the seamless steel tube perforating plug, a plasma spray gun is adopted for spraying, a nozzle and an electrode of the spray gun are respectively connected with the positive electrode and the negative electrode of a power supply, plasma gas is introduced between the nozzle and the electrode, an electric arc is ignited by means of high-frequency spark, zirconium-chromium powder is fed into the plasma jet from the nozzle by the powder-feeding gas, the powder-feeding gas is heated to a molten state, and the zirconium-chromium powder is sprayed onto the surface of the primary finished product of the seamless steel tube perforating plug, so that a zirconium-chromium coating with the thickness of 1-5mm is formed, and the wear-resistant seamless steel tube perforating plug is obtained.
2. The wear-resistant seamless steel tube piercing plug according to claim 1, wherein the molten steel purifier is any one of a magnesium-cerium alloy, a rhenium-magnesium alloy, or a lanthanum-aluminum alloy.
3. The wear-resistant seamless steel tube piercing plug according to claim 1, wherein the smelting temperature in the step (1) is 950-1100 ℃ and the smelting time is 1-3h.
4. The wear-resistant seamless steel tube piercing plug according to claim 1, wherein the quenching temperature in the step (2) is 900-1050 ℃, and the quenching time is 3-6h.
5. The wear-resistant seamless steel tube piercing plug according to claim 1, wherein the tempering temperature in the step (2) is 550-700 ℃ and the tempering time is 1-4h.
6. The wear-resistant seamless steel pipe perforating plug according to claim 1, wherein the proportion relation between zirconium chloride and chromium carbonate in the step (3) is 1mol (1.1-1.4 mol).
7. The wear-resistant seamless steel pipe piercing plug according to claim 1, wherein the reaction temperature in the step (3) is 60-70 ℃ and the reaction time is 5-10h.
8. The wear-resistant seamless steel tube piercing plug according to claim 1, wherein the powder-feeding gas in the step (4) is any one of argon, hydrogen, helium and nitrogen.
9. The wear-resistant seamless steel pipe piercing plug according to claim 1, wherein the plasma spray gun in the step (4) has a spray power of 25-35kW, an operating voltage of 55-65V and an operating current of 450-550A.
10. The wear-resistant seamless steel pipe perforating plug according to claim 1, wherein the powder feeding air flow in the step (4) is 280-320L/h, and the powder feeding speed is 5-8g/min.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6369948A (en) * 1986-09-09 1988-03-30 Kawasaki Steel Corp Tool material for manufacturing seamless steel pipe
JPH08300014A (en) * 1995-04-27 1996-11-19 Sumitomo Metal Ind Ltd Manufacture of tool for hot making tube
JP2003200207A (en) * 2001-12-27 2003-07-15 Jfe Steel Kk Piercing and rolling tool and method of manufacturing the same
CN102618707A (en) * 2012-04-12 2012-08-01 郭亚辉 Tool for metal thermal deformation process and production method
CN103320714A (en) * 2013-06-05 2013-09-25 西安交通大学 High-temperature-wearing-resisting aluminum-containing alloy steel and preparation method thereof
CN103451551A (en) * 2013-08-30 2013-12-18 北京工业大学 Preparation method of cast steel perforator top tip with high-temperature resistance and corrosion resistance
WO2014050975A1 (en) * 2012-09-28 2014-04-03 新報国製鉄株式会社 Piercer plug material for producing seamless steel tube, and method for producing said material
CN104233100A (en) * 2014-08-29 2014-12-24 南通市嘉业机械制造有限公司 Seamless steel tube piercing plug
US20210269904A1 (en) * 2018-07-09 2021-09-02 Nippon Steel Corporation Seamless steel pipe and method for producing the same
CN115466951A (en) * 2022-09-19 2022-12-13 山东科技大学 Heat-resistant wear-resistant piercing plug and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6369948A (en) * 1986-09-09 1988-03-30 Kawasaki Steel Corp Tool material for manufacturing seamless steel pipe
JPH08300014A (en) * 1995-04-27 1996-11-19 Sumitomo Metal Ind Ltd Manufacture of tool for hot making tube
JP2003200207A (en) * 2001-12-27 2003-07-15 Jfe Steel Kk Piercing and rolling tool and method of manufacturing the same
CN102618707A (en) * 2012-04-12 2012-08-01 郭亚辉 Tool for metal thermal deformation process and production method
WO2014050975A1 (en) * 2012-09-28 2014-04-03 新報国製鉄株式会社 Piercer plug material for producing seamless steel tube, and method for producing said material
CN103320714A (en) * 2013-06-05 2013-09-25 西安交通大学 High-temperature-wearing-resisting aluminum-containing alloy steel and preparation method thereof
CN103451551A (en) * 2013-08-30 2013-12-18 北京工业大学 Preparation method of cast steel perforator top tip with high-temperature resistance and corrosion resistance
CN104233100A (en) * 2014-08-29 2014-12-24 南通市嘉业机械制造有限公司 Seamless steel tube piercing plug
US20210269904A1 (en) * 2018-07-09 2021-09-02 Nippon Steel Corporation Seamless steel pipe and method for producing the same
CN115466951A (en) * 2022-09-19 2022-12-13 山东科技大学 Heat-resistant wear-resistant piercing plug and preparation method thereof

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