WO2017075741A1 - Nouveau matériau en alliage composite à base de cuivre-nanocarbure de silicium ayant une résistance élevée pour engrenages de locomotive à grande vitesse - Google Patents

Nouveau matériau en alliage composite à base de cuivre-nanocarbure de silicium ayant une résistance élevée pour engrenages de locomotive à grande vitesse Download PDF

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Publication number
WO2017075741A1
WO2017075741A1 PCT/CN2015/000860 CN2015000860W WO2017075741A1 WO 2017075741 A1 WO2017075741 A1 WO 2017075741A1 CN 2015000860 W CN2015000860 W CN 2015000860W WO 2017075741 A1 WO2017075741 A1 WO 2017075741A1
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Prior art keywords
copper
based composite
silicon carbide
alloy
zcusn
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PCT/CN2015/000860
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English (en)
Chinese (zh)
Inventor
孙飞
赵勇
埃里克斯•高登
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苏州金仓合金新材料有限公司
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Publication of WO2017075741A1 publication Critical patent/WO2017075741A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/02—Alloys based on copper with tin as the next major constituent

Definitions

  • the invention relates to a copper-based composite alloy material, in particular to a high-strength nano-scale silicon carbide copper-based composite alloy material for high-speed locomotive gears.
  • Nano-SiC is a kind of nano-material prepared on the basis of common silicon carbide materials through certain technical conditions. Nano-SiC (SiC) has high purity, small particle size, uniform distribution, large specific surface area, high surface activity, low bulk density, excellent mechanical, thermal, electrical and chemical properties, ie high hardness and high wear resistance. Sexual and good self-lubricating, high thermal conductivity, low coefficient of thermal expansion and high temperature strength.
  • the national standard copper alloy (ZCuSn 10 Pb 1 ) material is a versatile tin bronze material, which has high hardness, excellent wear resistance, is not easy to cause seizure, has good casting properties and machinability, and is in the atmosphere. Fresh water has good corrosion resistance and is therefore mainly used for wear parts such as connecting rods, bushings, bushings, gears, turbines, etc., which work under high load (below 20 MPa) and high sliding speed (8 m/s).
  • copper alloys (ZCuSn 10 Pb 1 ) materials need to increase their corresponding strengths while meeting the manufacturing requirements of high-speed locomotive components, so as to reduce the amount of wear in a certain period of time. Improve their service life, reduce the frequency of replacement parts, reduce the corresponding operating costs, and save resources.
  • the object of the present invention is to provide a high-strength nano-sized silicon carbide copper-based composite alloy material for high-speed locomotive gears with higher strength, hardness, wear resistance and corrosion resistance. Extend the service life of gears for high-speed railway locomotives.
  • a high-strength nano-scale silicon carbide copper-based composite alloy material for high-speed locomotive gears the composition of the new copper-based composite alloy material comprises nano-scale silicon carbide (SiC) and copper alloy (ZCuSn 10 Pb 1 ), wherein copper-based composite
  • the composition of each component of the new alloy material is as follows: nano-scale silicon carbide (SiC): 4-6%, copper alloy (ZCuSn 10 Pb 1 ): 94-96%.
  • composition of each component of the copper-based composite alloy new material is respectively: nano-scale silicon carbide (SiC): 4.5-5.5%, copper alloy (ZCuSn 10 Pb 1 ): 94.5-95.5%.
  • nano-sized silicon carbide (SiC) is produced by a known method, and the particle size of the nano-sized silicon carbide (SiC) is in the range of 10 ⁇ m to 100 ⁇ m.
  • the casting of the copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • the invention discloses a preparation method of a high-strength nano-sized silicon carbide copper-based composite alloy material for a high-speed locomotive gear, comprising the following steps:
  • Step 1 Electrolytic copper, phosphor bronze alloy, and tin ingot are smelted in an electric furnace according to the weight ratio;
  • Step 2 Perform component detection on the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid by using a Spike direct reading spectrometer;
  • Step 3 Place the nano-sized silicon carbide (SiC) powder on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, turn on the vibration device of the power frequency electric furnace and stir with a graphite rod to uniformly mix, and then further increase. Temperature to maintain temperature and maintained at maintained temperature;
  • Step 4 Insulation and casting, the smelting copper-based composite alloy new material is insulated, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting;
  • Step 5 The cast copper-based composite alloy new material bar is subjected to surface processing and packaged according to the factory standard.
  • the melting temperature in the step 1 is from 1150 ° C to 1200 ° C, and the melting time is from 5 to 6 hours.
  • the holding temperature in the step 3 is 1300 ° C - 1400 ° C, and the holding time is 50-60 minute.
  • the holding time in the step 4 is 10-15 minutes, and the casting temperature is 1100 ° C - 1150 ° C.
  • the high-strength nano-sized silicon carbide-copper-based composite alloy material for the high-speed locomotive gear of the invention uniformly distributes the nano-silicon carbide (SiC) material in the existing copper alloy (ZCuSn 10 Pb 1 ) material by a certain technical means,
  • the performance of copper alloy (ZCuSn 10 Pb 1 ) material is further improved by using nano-sized silicon carbide (SiC) with high hardness, high wear resistance and good self-lubricating and high-temperature strength.
  • the high-strength nano-sized silicon carbide-copper-based composite alloy material for high-speed locomotive gear of the present invention has higher strength, hardness, wear resistance and corrosion resistance than the existing copper alloy (ZCuSn 10 Pb 1 ), thereby prolonging Service life in gears for high-speed railway locomotives.
  • the invention provides a high-strength nano-sized silicon carbide copper-based composite alloy material for high-speed locomotive gears, and the composition of the copper-based composite alloy new material comprises nano-scale silicon carbide (SiC) and copper alloy (ZCuSn 10 Pb 1 ), wherein copper
  • the composition of each component of the new composite alloy material is as follows: nano-scale silicon carbide (SiC): 4-6%, copper alloy (ZCuSn 10 Pb 1 ): 94-96%.
  • Nanoscale silicon carbide (SiC) is produced by a known method, and the particle size of nanoscale silicon carbide (SiC) is in the range of 10 ⁇ m to 100 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T1176-2013.
  • the invention provides a high-strength nano-sized silicon carbide copper-based composite alloy material for high-speed locomotive gears, which comprises the following steps:
  • Step 1 According to the national standard GB/T 1176-2013 and the chemical composition requirements of copper alloy (ZCuSn 10 Pb 1 ), electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the furnace during smelting.
  • the volume control copper alloy (ZCuSn 10 Pb 1 ) has a liquid volume of less than 90% of the volume of the furnace, a melting temperature of 1150 ° C to 1200 ° C, and a melting time of 5 to 6 hours.
  • Step 2 The composition of the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid is determined by a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • Step 3 Place the nano-sized silicon carbide (SiC) powder on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, turn on the vibration device of the power frequency electric furnace and stir with a graphite rod to uniformly mix and further increase the temperature. It is maintained at 1300 ° C - 1400 ° C for 50-60 minutes.
  • Step 4 Insulation and casting, the smelted copper-based composite alloy new material is kept for 10-15 minutes, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1100. °C-1150 °C;
  • Step 5 The cast copper-based composite alloy new material bar is subjected to surface processing and packaged according to the factory standard.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • nano-sized silicon carbide (SiC) 4%
  • copper alloy (ZCuSn 10 Pb 1 ) 96% of the starting material.
  • nano-sized silicon carbide (SiC) is obtained by a known method, and the nano-sized silicon carbide (SiC) has a particle diameter of 10 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the volume of the furnace during smelting.
  • the size control copper alloy (ZCuSn 10 Pb 1 ) has a liquid volume of less than 90% of the volume of the furnace, a melting temperature of 1150 ° C, and a melting time of 5 hours.
  • the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid was subjected to composition detection using a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • the nano-sized silicon carbide (SiC) powder is placed on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, the vibration device of the power frequency electric furnace is turned on and stirred by the graphite rod to uniformly mix, and the temperature is further increased to 1300 ° C and hold for 50 minutes.
  • the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1100 ° C;
  • the cast copper-based composite alloy new material bar is surface-processed and packaged according to the factory standard.
  • the strength, hardness, wear resistance and corrosion resistance of the high-strength nano-sized silicon carbide-copper-based composite alloy for high-speed locomotive gears are higher than that of copper alloy (ZCuSn 10 Pb 1 ) and used in high-speed railway locomotive gears.
  • the service life is extended and the frequency of replacement is increased from 40,000 km to 61,000 km.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • nano-sized silicon carbide (SiC) 4.5%
  • copper alloy (ZCuSn 10 Pb 1 ) 95.5% of the starting materials.
  • nano-sized silicon carbide (SiC) is obtained by a known method, and the nano-sized silicon carbide (SiC) has a particle diameter of 30 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the volume of the furnace during smelting.
  • the size control copper alloy (ZCuSn 10 Pb 1 ) liquid volume is below 90% of the furnace volume, the melting temperature is 1180 ° C, and the melting time is 5.5 hours.
  • the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid was subjected to composition detection using a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • the nano-sized silicon carbide (SiC) powder is placed on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, the vibration device of the power frequency electric furnace is turned on and stirred by the graphite rod to uniformly mix, and the temperature is further increased to 1320 ° C and kept for 56 minutes.
  • the smelted copper-based composite alloy new material is kept for 12 minutes, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1110 ° C;
  • the finished copper-based composite alloy new material bar is subjected to surface processing. And packaged according to the factory standard.
  • the strength, hardness, wear resistance and corrosion resistance of the high-strength nano-sized silicon carbide-copper-based composite alloy for high-speed locomotive gears are higher than that of copper alloy (ZCuSn 10 Pb 1 ) and used in high-speed railway locomotive gears.
  • the service life is extended and the frequency of replacement is increased from 40,000 km to 64,000 km.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • nano-sized silicon carbide (SiC) 5%
  • copper alloy (ZCuSn 10 Pb 1 ) 95% of the starting material.
  • nano-sized silicon carbide (SiC) is obtained by a known method, and the nano-sized silicon carbide (SiC) has a particle diameter of 50 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the volume of the furnace during smelting.
  • the size control copper alloy (ZCuSn 10 Pb 1 ) liquid volume is below 90% of the furnace volume, the melting temperature is 1160 ° C, and the melting time is 6 hours.
  • the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid was subjected to composition detection using a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • the nano-sized silicon carbide (SiC) powder is placed on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, the vibration device of the power frequency electric furnace is turned on and stirred by the graphite rod to uniformly mix, and the temperature is further increased to 1360 ° C and hold for 57 minutes.
  • the smelted copper-based composite alloy new material is kept for 13 minutes, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1130 ° C;
  • the cast copper-based composite alloy new material bar is surface-processed and packaged according to the factory standard.
  • the strength, hardness, wear resistance and corrosion resistance of the high-strength nano-sized silicon carbide-copper-based composite alloy for high-speed locomotive gears are higher than that of copper alloy (ZCuSn 10 Pb 1 ) and used in high-speed railway locomotive gears.
  • the service life is extended and the frequency of replacement is increased from 40,000 km to 67,000 km.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • nano-sized silicon carbide (SiC) 5.5%
  • copper alloy (ZCuSn 10 Pb 1 ) 94.5% of the starting materials.
  • nano-sized silicon carbide (SiC) is obtained by a known method, and the nano-sized silicon carbide (SiC) has a particle diameter of 80 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the volume of the furnace during smelting.
  • the size control copper alloy (ZCuSn 10 Pb 1 ) has a liquid volume of less than 90% of the volume of the furnace, a melting temperature of 1190 ° C, and a melting time of 5.5 hours.
  • the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid was subjected to composition detection using a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • the nano-sized silicon carbide (SiC) powder is placed on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, the vibration device of the power frequency electric furnace is turned on and stirred by the graphite rod to uniformly mix, and the temperature is further increased to 1380 ° C and held for 53 minutes.
  • the smelted copper-based composite alloy new material is kept for 14 minutes, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1140 ° C;
  • the cast copper-based composite alloy new material bar is surface-processed and packaged according to the factory standard.
  • the strength, hardness, wear resistance and corrosion resistance of the high-strength nano-sized silicon carbide-copper-based composite alloy for high-speed locomotive gears are higher than that of copper alloy (ZCuSn 10 Pb 1 ) and used in high-speed railway locomotive gears.
  • the service life is extended and the frequency of replacement is increased from 40,000 km to 65,000 km.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • nano-sized silicon carbide (SiC) 6%
  • copper alloy (ZCuSn 10 Pb 1 ) 94% of the starting material.
  • nano-sized silicon carbide (SiC) is obtained by a known method, and the nano-sized silicon carbide (SiC) has a particle diameter of 100 ⁇ m.
  • the casting of copper alloy (ZCuSn 10 Pb 1 ) is in accordance with the national standard GB/T 1176-2013.
  • electrolytic copper, phosphor bronze alloy and tin ingot are smelted in an electric furnace according to the weight ratio, according to the volume of the furnace during smelting.
  • the size control copper alloy (ZCuSn 10 Pb 1 ) has a liquid volume of less than 90% of the volume of the furnace, a melting temperature of 1200 ° C, and a melting time of 6 hours.
  • the smelted copper alloy (ZCuSn 10 Pb 1 ) liquid was subjected to composition detection using a Spike direct reading spectrometer to determine the chemical composition of the copper alloy (ZCuSn 10 Pb 1 ) liquid within the requirements of the national standard.
  • the nano-sized silicon carbide (SiC) powder is placed on the surface of the qualified copper alloy (ZCuSn 10 Pb 1 ) liquid, the vibration device of the power frequency electric furnace is turned on and stirred by the graphite rod to uniformly mix, and the temperature is further increased to 1400 ° C and hold for 60 minutes.
  • the smelted copper-based composite alloy new material is incubated for 15 minutes, and the copper-based composite alloy new material is cast into a copper-based composite alloy new material bar by continuous casting, and the casting temperature is 1150 ° C;
  • the cast copper-based composite alloy new material bar is surface-processed and packaged according to the factory standard.
  • the strength, hardness, wear resistance and corrosion resistance of the high-strength nano-sized silicon carbide-based copper-based composite alloy for high-speed locomotive gears are higher than those of the national standard copper alloy (ZCuSn 10 Pb 1 ) and used in high-speed railway locomotives.
  • the service life in the gear is extended and the frequency of replacement is increased from 40,000 km to 66,000 km.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Conductive Materials (AREA)

Abstract

La présente invention concerne un nouveau matériau en alliage composite à base de cuivre-nanocarbure de silicium ayant une résistance élevée pour engrenages de locomotive à grande vitesse, comprenant les composants suivants en pourcentage en volume : 4-6 % de nanocarbure de silicium et 94-96 % d'un alliage de cuivre ZCuSn10Pb1, le nanocarbure de silicium étant réparti uniformément dans l'alliage de cuivre ZCuSn10Pb1.
PCT/CN2015/000860 2015-11-02 2015-12-04 Nouveau matériau en alliage composite à base de cuivre-nanocarbure de silicium ayant une résistance élevée pour engrenages de locomotive à grande vitesse WO2017075741A1 (fr)

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CN201510731670.5A CN105177350A (zh) 2015-11-02 2015-11-02 一种高速机车齿轮用高强度纳米级碳化硅铜基复合合金新材料
CN201510731670.5 2015-11-02

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CN114807894A (zh) * 2022-05-18 2022-07-29 湖南工业职业技术学院 一种表面改性碳化硅颗粒增强铜基复合材料及其制备方法

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CN106086515A (zh) * 2016-08-09 2016-11-09 苏州金仓合金新材料有限公司 一种碳化硅颗粒与铜铝复合的材料及其制备方法
CN107553071A (zh) * 2017-09-03 2018-01-09 安徽天裕汽车零部件制造有限公司 一种抗扭减振器的生产工艺

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CN114807894B (zh) * 2022-05-18 2023-07-04 湖南工业职业技术学院 一种表面改性碳化硅颗粒增强铜基复合材料及其制备方法

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