Wear-resistant nickel-chromium alloy wire and preparation method thereof

Abstract

The invention discloses a wear-resistant nickel-chromium alloy wire and a preparation method thereof, and relates to the field of alloy wires, and the wear-resistant nickel-chromium alloy wire comprises the following raw materials by weight: 25-30% of Cr; the alloy comprises, by weight, 3%-5% of Co, 2%-4% of Mo, 3%-6% of Fe, 2%-4% of Nb, 2%-5% of the total amount of Al and Ti, 3%-3.5% of Ta, 0.2%-0.6% of B, 0.1%-0.2% of Y, less than 0.10% of C, less than 0.015% of S, less than 0.012% of Mg, less than 0.02% of V, less than 0.015% of Mn and the balance Ni. According to the nickel-chromium alloy wire, the material of the nickel-chromium alloy wire is optimized, the wear resistance of the nickel-chromium alloy wire can be effectively improved, improvement is conducted on the basis of an existing preparation method, the overall efficiency during nickel-chromium alloy wire machining is improved, the product quality is well guaranteed, and the production cost is reduced; therefore, the use cost in later use is lower, the product performance is stable, and the application prospect is good.

Description

Technical Field

[0001] The invention relates to the technical field of alloy wires, and in particular to a wear-resistant nickel-chromium alloy wire and a preparation method thereof. Background Art

[0002] An alloy is a substance with metallic properties formed by mixing two or more chemical substances (at least one of which is a metal). It is generally obtained by melting the components into a uniform liquid and then condensing them. An alloy is at least one of the following three types: a single-phase solid solution formed by elements, a mixture formed by many metal phases, and an intermetallic compound formed by metals.

[0003] In the prior art, the conventional process of processing nickel-chromium alloy wire is melting and refining - casting - homogenization - hot extrusion - annealing - stretching and subsequent scraping and packaging. However, after the conventional nickel-chromium alloy wire is processed through the above steps, its wear resistance cannot meet the ever-increasing production needs, which greatly affects the service life of the alloy wire. Therefore, a wear-resistant nickel-chromium alloy wire and a preparation method thereof are needed to meet people's needs. Summary of the invention

[0004] The purpose of the present invention is to provide a wear-resistant nickel-chromium alloy wire and a preparation method thereof, so as to solve the problem that the wear resistance mentioned in the above background technology cannot meet the ever-changing production needs, which greatly affects the service life of the alloy wire.

[0005] To achieve the above object, the present invention provides the following technical solution: a wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in weight percentage: Cr: 25% to 30%; Co: 3 to 5%, Mo: 2 to 4%, Fe: 3 to 6%, Nb: 2 to 4%, total amount of Al and Ti: 2 to 5%, Ta: 3 to 3.5%, B: 0.2 to 0.6%, Y: 0.1 to 0.2%, C: <0.10%, S: <0.015%, Mg: <0.012%, V: <0.02%, Mn: <0.015%, Ni balance.

[0006] Preferably, the particle size of the raw material does not exceed 25 μm and the purity is not less than 99.9%.

[0007] A method for preparing wear-resistant nickel-chromium alloy wire, characterized in that it comprises the following steps: S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.

[0008] The beneficial effects of the present invention are: In the present invention, by optimizing the material of the nickel-chromium alloy wire, the wear resistance of the nickel-chromium alloy wire can be effectively improved, and by making improvements on the basis of the existing preparation method, the overall efficiency of the nickel-chromium alloy wire processing is improved, the quality of the product is well guaranteed, and the production cost is also reduced, thereby ensuring lower use costs in the later use, stable product performance, and good application prospects. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0010] Embodiment 1, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 25% to 30%; Co: 3 to 5%, Mo: 2 to 4%, Fe: 3 to 6%, Nb: 2 to 4%, total amount of Al and Ti: 2 to 5%, Ta: 3 to 3.5%, B: 0.2 to 0.6%, Y: 0.1 to 0.2%, C: <0.10%, S: <0.015%, Mg: <0.012%, V: <0.02%, Mn: <0.015%, Ni balance.

[0011] Furthermore, the particle size of the raw material does not exceed 25 μm and the purity is not less than 99.9%.

[0012] A method for preparing wear-resistant nickel-chromium alloy wire, characterized in that it comprises the following steps: S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.

[0013] Embodiment 2, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 25% to 35%; Co: 3 to 4%, Mo: 2 to 3%, Fe: 3 to 5%, Nb: 2 to 3%, total amount of Al and Ti: 3 to 6%, Ta: 4 to 4.5%, B: 0.25 to 0.36%, Y: 0.15 to 0.25%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0014] A method for preparing wear-resistant nickel-chromium alloy wire, characterized in that it comprises the following steps: S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.

[0015] Embodiment 3, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 30%; Co: 5%, Mo: 2%, Fe: 4%, Nb: 4%, total amount of Al and Ti: 5%, Ta: 5%, B: 0.36%, Y: 0.25%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0016] A method for preparing wear-resistant nickel-chromium alloy wire, characterized in that it comprises the following steps: S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.

[0017] Embodiment 3, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0018] A method for preparing wear-resistant nickel-chromium alloy wire, characterized in that it comprises the following steps: S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.

[0019] Embodiment 4, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0020] The preparation method is the same as above.

[0021] Embodiment 5, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 33%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0022] The preparation method is the same as above.

[0023] Embodiment 6, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 32%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0024] The preparation method is the same as above.

[0025] Embodiment 7, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 3%, Mo: 2%, Fe: 4%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0026] The preparation method is the same as above.

[0027] Embodiment 8, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 3%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0028] The preparation method is the same as above.

[0029] Embodiment 9, A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 3%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 3%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0030] The preparation method is the same as above.

[0031] Embodiment 10 A wear-resistant nickel-chromium alloy wire and a preparation method thereof, comprising the following raw materials in percentage by weight: Cr: 34%; Co: 2%, Mo: 2%, Fe: 2%, Nb: 3%, total amount of Al and Ti: 4%, Ta: 4%, B: 0.3%, Y: 0.2%, C: <0.12%, S: <0.01%, Mg: <0.01%, V: <0.015%, Mn: <0.05%, Ni balance.

[0032] The preparation method is the same as above.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wear-resistant nickel-chromium alloy wire, characterized in that: The following raw materials are included in weight percentage: Cr: 25% to 30%; Co: 3 to 5%, Mo: 2 to 4%, Fe: 3 to 6%, Nb: 2 to 4%, total amount of Al and Ti: 2 to 5%, Ta: 3 to 3.5%, B: 0.2 to 0.6%, Y: 0.1 to 0.2%, C: <0.10%, S: <0.015%, Mg: <0.012%, V: <0.02%, Mn: <0.015%, Ni balance.

2. The wear-resistant nickel-chromium alloy wire and the preparation method thereof according to claim 1, characterized in that: The particle size of the raw material does not exceed 25 μm, and the purity is not less than 99.9%.

3. The method for preparing a wear-resistant nickel-chromium alloy wire according to claim 1, characterized in that: The following steps are included S1. Use a metal grinder to make the raw material into a powder with a particle size not exceeding 25 μm, then use ethanol as a base according to the formula ratio, the ratio of powder to ethanol is 1:1.1, to obtain a mixed solution, perform electromagnetic stirring for 2 hours, the stirring speed is 500 to 2000 r / min, and then perform ultrasonic oscillation treatment for 2 hours, the frequency is 10 to 30 KHz, to obtain a mixture ethanol solution, and then place the mixture ethanol solution in a drying oven for drying treatment to remove the alcohol solvent, the drying temperature is 60°C, and the drying time is 2 hours, to obtain a mixed metal powder; S2, the mixed powder is loaded into a stainless steel sleeve, the stainless steel sleeve is provided with an exhaust port and a degassing pipe, the stainless steel sleeve is vibrated for 5 seconds every 10 seconds during the loading period, the feeding is stopped when the top of the powder is 8 to 15 mm away from the upper edge of the steel sleeve, the stainless steel sleeve top cover is installed, the port of the degassing pipe needs to be sealed, the steel sleeve top cover is welded, the air tightness of the stainless steel tank is tested, and the stainless steel tank is sent to a degassing furnace for degassing treatment, the furnace temperature is 600 to 650 ° C, the vacuum degree is lower than 0.1 Pa, and it is maintained for 10 hours. After the treatment is completed, the stainless steel tank is welded and sent to a hot isostatic pressing device, and the temperature is raised to 1250 to 1300 ° C at a heating rate of 10 to 20 ° C / min, and then a gas pressure of 150-200 MPa is applied to the outer surface of the stainless steel tank, and it is kept at constant pressure and temperature for 4 to 6 hours and cooled with the furnace, the stainless steel tank is taken out, and the stainless steel layer is completely removed to obtain a cylindrical powder sintered rod blank with a diameter of 50 mm; S3, placing the rod blank into a smelting furnace for smelting, smelting at 1800 to 1900° C. for 40 minutes to complete high temperature smelting, and then smelting at 1500 to 1600° C. for 20 minutes to complete low temperature smelting, thereby obtaining an alloy rod; S4, placing the alloy rod in an induction furnace for homogenization annealing, the temperature during annealing is 800°C, wherein the annealing process has three stages, in the first stage, the temperature is reduced from the initial temperature to 750°C, and the temperature is controlled to decrease at a rate of 15°C / min; in the second stage, the temperature is continuously reduced from 700°C, and the temperature is maintained for 10 minutes, and then the temperature is further reduced; in the third stage, the temperature is continuously reduced from 650°C to 600°C, and then forging and rolling are performed, the rolling needs to be kept at 1200°C for 1 hour, and then hot rolled into alloy wire rods at 950-1100°C; S5, using an extruder to stretch the gold wire rod, the stretching process needs to go through several wire drawing processes, and after each stretching process, it needs to go through the annealing process of step S4, and the elongation of the alloy wire after each stretching is 12% to 15%, until the alloy wire with the required diameter is obtained; S6. Place the alloy wire in nitrogen, heat it to 800°C, keep it warm for 2 hours, then heat it to 1000°C, keep it warm for 2 hours, continue to heat it to 1100°C, keep it warm for 2 hours, continue to heat it to 1200°C, keep it warm for 2 hours, then perform quenching treatment to obtain a solid solution alloy, and then perform aging treatment, heat the alloy wire to 800°C, keep it warm for 5 hours, wait for it to cool to room temperature, then heat it to 700°C, keep it warm for 12 hours, and wait for it to cool to room temperature.