WO2023028994A1 - Matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour véhicule électrique - Google Patents

Matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour véhicule électrique Download PDF

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Publication number
WO2023028994A1
WO2023028994A1 PCT/CN2021/116467 CN2021116467W WO2023028994A1 WO 2023028994 A1 WO2023028994 A1 WO 2023028994A1 CN 2021116467 W CN2021116467 W CN 2021116467W WO 2023028994 A1 WO2023028994 A1 WO 2023028994A1
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WO
WIPO (PCT)
Prior art keywords
alloy material
production
alloy
environmentally friendly
electric vehicles
Prior art date
Application number
PCT/CN2021/116467
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English (en)
Chinese (zh)
Inventor
鞠小平
万小民
邵志强
张伟
万方
张习娟
刘伟
丁乾
薛均
许祥霖
何杰
管律
闻进
谷强
王炼
鞠益航
Original Assignee
江苏恒义工业技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏恒义工业技术有限公司 filed Critical 江苏恒义工业技术有限公司
Priority to PCT/CN2021/116467 priority Critical patent/WO2023028994A1/fr
Publication of WO2023028994A1 publication Critical patent/WO2023028994A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
    • C22C49/04—Light metals
    • C22C49/06—Aluminium

Definitions

  • the invention relates to the technical field of production of lower trays of electric vehicles, in particular to an environmentally friendly and lightweight alloy material used for the production of lower trays of electric vehicles.
  • Alloy materials have the characteristics of light weight and easy recycling. They are environmentally friendly and can reduce production costs through recycling. Reduce the weight of the vehicle body to significantly reduce the energy consumption of the car.
  • the existing alloy materials still have deficiencies.
  • the Al-Mg-Si alloy materials represented by the 6005 brand have low strength during actual use, especially when they are impacted.
  • the lower tray made of material is very prone to cracking.
  • the present invention provides an environmentally friendly and lightweight alloy material for the production of lower trays of electric vehicles, which solves the shortcomings of the existing alloy materials proposed in the above-mentioned background technology, represented by the 6005 grade
  • the Al-Mg-Si alloy material in the actual use process has low strength, especially when it is impacted, and the lower tray made of the Al-Mg-Si alloy material is very prone to cracking.
  • an environmentally friendly and lightweight alloy material used for the production of the lower tray of electric vehicles the composition and mass percentage of the alloy material are as follows:
  • An environmentally friendly and lightweight alloy material for the production of the lower tray of an electric vehicle includes the following production steps:
  • the quartz rod or tube is melted and drawn with a hydrogen-oxygen flame, and then blown with a hydrogen-oxygen flame blowpipe to make a quartz cotton thread with a diameter of 0.7-1 ⁇ m, and weave the quartz cotton thread to obtain a quartz fiber mesh;
  • Two alloy rods are heated and extruded to obtain a flat alloy plate, and then the quartz fiber mesh is placed on the surface of an alloy plate, so that the two alloy plates are overlapped and fused under heating to form an alloy plate, and then The finished alloy material can be obtained by cooling and quenching.
  • the pore size on the surface of the quartz fiber mesh is less than or equal to 1 mm, and the softening temperature of the quartz fiber mesh is 1700 degrees Celsius.
  • the quartz fiber mesh can be used for a long time in an environment of 600-1050 degrees Celsius.
  • the melting temperature is 750-800 degrees Celsius
  • the refining temperature is 700-750 degrees Celsius
  • the refining time is 17-22 minutes.
  • the weight error of the two alloy rods is less than or equal to 30g.
  • the casting temperature is 680-710 degrees Celsius, and the casting speed is 65-90 mm/min.
  • the alloy rod is heated to 500-520 degrees Celsius for hot extrusion molding, and the extrusion speed is 9-15 m/min.
  • the temperature of the two alloy plates is 600-630 degrees Celsius when welding, and the alloy plates are hammered during welding.
  • the alloy material is applied in the field of electric vehicle lower tray production.
  • the invention provides an environmentally friendly and lightweight alloy material for the production of lower trays of electric vehicles, which has the following beneficial effects:
  • This environmentally friendly and lightweight alloy material is used for the production of the lower tray of electric vehicles.
  • Magnesium can improve the corrosion resistance of the alloy material
  • manganese can improve the strength of the alloy material
  • silicon can improve the fluidity of the alloy material so as to reduce the corrosion resistance of the alloy material.
  • the processing difficulty of the material, copper can improve the machinability, tensile strength and impact toughness of the alloy material, and the increased flexibility of the alloy material with titanium can further improve the toughness of the alloy material and reduce the possibility of cracking, and through quartz
  • the setting of the fiber mesh can improve the mechanical properties of the lower tray made of the alloy material, that is, when the lower tray made of the alloy material is impacted and ruptures, the quartz fiber mesh can reduce the risk of the broken part falling off. Possibility, so that there is still a connection between the fragmented parts.
  • the invention provides a technical solution: an environmentally friendly and lightweight alloy material used for the production of lower trays of electric vehicles.
  • the composition and mass percentage of the alloy material are as follows:
  • An environmentally friendly and lightweight alloy material for the production of the lower tray of an electric vehicle includes the following production steps:
  • the quartz rod or tube is melted and drawn with a hydrogen-oxygen flame, and then blown with a hydrogen-oxygen flame blowpipe to make a quartz cotton thread with a diameter of 0.7-1 ⁇ m, and weave the quartz cotton thread to obtain a quartz fiber mesh;
  • Two alloy rods are heated and extruded to obtain a flat alloy plate, and then the quartz fiber mesh is placed on the surface of an alloy plate, so that the two alloy plates are overlapped and fused under heating to form an alloy plate, and then The finished alloy material can be obtained by cooling and quenching.
  • step S1 the pore size on the surface of the quartz fiber mesh is less than or equal to 1 mm, and the softening temperature of the quartz fiber mesh is 1700 degrees Celsius.
  • the quartz fiber screen can be used for a long time under the environment of 600-1050 degrees Celsius.
  • step S2 the melting temperature is 750-800 degrees Celsius, the refining temperature is 700-750 degrees Celsius, and the refining time is 17-22 minutes.
  • step S4 the weight error of the two alloy rods is less than or equal to 30g.
  • step S4 the casting temperature is 680-710 degrees Celsius, and the casting speed is 65-90 mm/min.
  • step S5 the alloy rod is heated to 500-520 degrees Celsius for hot extrusion molding, and the extrusion speed is 9-15m/min.
  • step S5 the temperature of the two alloy plates is 600-630 degrees Celsius when welding, and the alloy plates are hammered during welding.
  • Alloy materials are used in the production of lower trays for electric vehicles.
  • This environmentally friendly and lightweight alloy material is used for the production of the lower tray of electric vehicles.
  • Magnesium can improve the corrosion resistance of the alloy material
  • manganese can improve the strength of the alloy material
  • silicon can improve the fluidity of the alloy material so as to reduce the corrosion resistance of the alloy material.
  • the processing difficulty of the material, copper can improve the machinability, tensile strength and impact toughness of the alloy material, and the increased flexibility of the alloy material with titanium can further improve the toughness of the alloy material and reduce the possibility of cracking, and through quartz
  • the setting of the fiber screen can improve the mechanical properties of the lower tray made of the alloy material, that is, when the lower tray made of the alloy material is impacted and ruptures, the quartz fiber screen can reduce the risk of the broken part falling off. Possibility, so that there is still a connection between the fragmented parts.
  • this environmentally friendly and lightweight alloy material is used for the production of the lower tray of electric vehicles.
  • the composition and mass percentage of the alloy material are as follows:
  • An environmentally friendly and lightweight alloy material for the production of the lower tray of an electric vehicle includes the following production steps:
  • Quartz fiber screen preparation melt and draw quartz rods or tubes with an oxygen-hydrogen flame, and then blow them with an oxygen-hydrogen flame blowpipe to make quartz cotton wires with a diameter of 0.7-1 ⁇ m, and weave the quartz cotton wires to obtain quartz fiber screens;
  • Melting is carried out according to the requirements of each composition and mass percentage of the alloy material, and refined in argon to obtain the refined alloy material;
  • Refining and impurity removal add a refiner to the refined alloy material for refinement, then use argon gas with a purity of 99.99% as the degassing medium for degassing, and remove impurities through a ceramic filter plate;
  • Forging Divide the same refined alloy material after removal of impurities into two equal parts for forging, and then water-cool to obtain alloy rods;
  • Hot extrusion molding two alloy rods are heated and extruded to obtain a flat alloy plate, and then the quartz fiber mesh is placed on the surface of an alloy plate, so that the two alloy plates are overlapped and fused under heating to form An alloy plate, followed by cooling and quenching to obtain the finished alloy material;
  • This environmentally friendly and lightweight alloy material is used for the production of the lower tray of electric vehicles.
  • Magnesium can improve the corrosion resistance of the alloy material
  • manganese can improve the strength of the alloy material
  • silicon can improve the fluidity of the alloy material so as to reduce the corrosion resistance of the alloy material.
  • the processing difficulty of the material, copper can improve the machinability, tensile strength and impact toughness of the alloy material, and the increased flexibility of the alloy material with titanium can further improve the toughness of the alloy material and reduce the possibility of cracking, and through quartz
  • the setting of the fiber screen can improve the mechanical properties of the lower tray made of the alloy material, that is, when the lower tray made of the alloy material is impacted and ruptures, the quartz fiber screen can reduce the risk of the broken part falling off. Possibility, so that there is still a connection between the fragmented parts.

Abstract

L'invention concerne un matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour un véhicule électrique, se rapportant au domaine technique de la production de protection sous-moteur pour véhicule électrique. Les étapes de production spécifiques comprennent : S1, préparation d'un treillis d'écran en fibres de quartz ; S2, fusion ; S3, raffinage et élimination des impuretés ; S4, coulée ; et S5, façonnage par extrusion à chaud. Pour le matériau d'alliage léger respectueux de l'environnement pour la production de la protection sous-moteur pour un véhicule électrique, le magnésium peut améliorer la résistance à la corrosion du matériau d'alliage, le cuivre peut améliorer l'usinabilité, la résistance à la traction et la ténacité au choc du matériau d'alliage et la flexibilité accrue du matériau d'alliage à l'aide du titane peut en outre améliorer la ténacité du matériau d'alliage et réduire la possibilité de fissuration ; de plus, les propriétés mécaniques de la protection sous-moteur en matériau d'alliage peuvent être améliorées par l'utilisation du treillis d'écran en fibres de quartz et même lorsque la protection en matériau d'alliage se fissure sous l'effet d'un impact, le treillis d'écran en fibres de quartz peut réduire la possibilité de chute de parties fissurées, de telle sorte que les parties fissurées présentent encore un effet de connexion.
PCT/CN2021/116467 2021-09-03 2021-09-03 Matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour véhicule électrique WO2023028994A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/116467 WO2023028994A1 (fr) 2021-09-03 2021-09-03 Matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour véhicule électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/116467 WO2023028994A1 (fr) 2021-09-03 2021-09-03 Matériau d'alliage léger respectueux de l'environnement pour la production d'une protection sous-moteur pour véhicule électrique

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WO2023028994A1 true WO2023028994A1 (fr) 2023-03-09

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134759A (en) * 1976-09-01 1979-01-16 The Research Institute For Iron, Steel And Other Metals Of The Tohoku University Light metal matrix composite materials reinforced with silicon carbide fibers
US4444603A (en) * 1981-09-01 1984-04-24 Sumitomo Chemical Company, Limited Aluminum alloy reinforced with silica alumina fiber
US4452865A (en) * 1981-12-02 1984-06-05 Sumitomo Chemical Company, Limited Process for producing fiber-reinforced metal composite material
US4753850A (en) * 1980-01-04 1988-06-28 Vereingte Aluminium -Werke A.G. Fiber-reinforced laminates and method for making them
CN102021503A (zh) * 2010-12-15 2011-04-20 江苏大学 一种连续纤维增强金属基复合材料的制备方法
CN102127722A (zh) * 2011-03-22 2011-07-20 上海交通大学 三维正交碳纤维增强铝基复合材料及其制备方法
CN103602932A (zh) * 2013-12-10 2014-02-26 湖南健行康复器材科技发展有限公司 一种碳纤维增强铝基复合材料及其制备方法
CN107043901A (zh) * 2017-02-23 2017-08-15 吉林大学 玄武岩纤维和陶瓷颗粒混杂铝合金钻杆材料及其制备方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134759A (en) * 1976-09-01 1979-01-16 The Research Institute For Iron, Steel And Other Metals Of The Tohoku University Light metal matrix composite materials reinforced with silicon carbide fibers
US4753850A (en) * 1980-01-04 1988-06-28 Vereingte Aluminium -Werke A.G. Fiber-reinforced laminates and method for making them
US4444603A (en) * 1981-09-01 1984-04-24 Sumitomo Chemical Company, Limited Aluminum alloy reinforced with silica alumina fiber
US4452865A (en) * 1981-12-02 1984-06-05 Sumitomo Chemical Company, Limited Process for producing fiber-reinforced metal composite material
CN102021503A (zh) * 2010-12-15 2011-04-20 江苏大学 一种连续纤维增强金属基复合材料的制备方法
CN102127722A (zh) * 2011-03-22 2011-07-20 上海交通大学 三维正交碳纤维增强铝基复合材料及其制备方法
CN103602932A (zh) * 2013-12-10 2014-02-26 湖南健行康复器材科技发展有限公司 一种碳纤维增强铝基复合材料及其制备方法
CN107043901A (zh) * 2017-02-23 2017-08-15 吉林大学 玄武岩纤维和陶瓷颗粒混杂铝合金钻杆材料及其制备方法

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