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WO2023028994A1 - 一种环保轻量化用于电动汽车下托盘生产的合金材料 - Google Patents

一种环保轻量化用于电动汽车下托盘生产的合金材料 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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Prior art keywords
alloy material
production
alloy
environmentally friendly
electric vehicles
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PCT/CN2021/116467
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English (en)
French (fr)
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
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Jiangsu Hengyi Industrial Technology Co Ltd
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Jiangsu Hengyi Industrial Technology Co Ltd
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Priority to PCT/CN2021/116467 priority Critical patent/WO2023028994A1/zh
Publication of WO2023028994A1 publication Critical patent/WO2023028994A1/zh
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    • 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.

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

Abstract

一种环保轻量化用于电动汽车下托盘生产的合金材料，涉及电动汽车下托盘生产技术领域，具体生产步骤包括：S1、石英纤维丝网制备；S2、熔炼；S3、细化除杂；S4、铸造；和S5、热挤压成型；该环保轻量化用于电动汽车下托盘生产的合金材料，镁可提高该合金材料的耐蚀性，铜可提高该合金材料的切削性、抗拉强度和冲击韧性，且配合钛对该合金材料增加的柔韧性可进一步提高该合金材料的韧性，降低开裂可能性，而且通过石英纤维丝网的设置可提高由该合金材料制成的下托盘的机械性能，即使在该合金材料制成的下托盘受到冲击发生破裂时，石英纤维丝网可降低碎裂部分发生脱落的可能性，使得碎裂部分之间仍具有联结作用。

Description

一种环保轻量化用于电动汽车下托盘生产的合金材料 技术领域
本发明涉及电动汽车下托盘生产技术领域，具体为一种环保轻量化用于电动汽车下托盘生产的合金材料。
背景技术
合金材料具有质量轻和易于回收循环利用的特点，环保的同时通过回收循环利用可降低生产成本，是目前汽车轻量化的首选材料，使用合金材料制作的汽车下托盘使得汽车轻量化，也就是可降低车身重量从而显著降低汽车行驶能耗。
现有的合金材料仍具有不足之处，以6005牌号为代表的Al-Mg-Si系合金材料在实际使用过程中，强度偏低尤其是受撞击的情况下，由Al-Mg-Si系合金材料制成的下托盘极易产生开裂。
发明内容
针对现有技术的不足，本发明提供了一种环保轻量化用于电动汽车下托盘生产的合金材料，解决了上述背景技术中提出现有的合金材料仍具有不足之处，以6005牌号为代表的Al-Mg-Si系合金材料在实际使用过程中，强度偏低尤其是受撞击的情况下，由Al-Mg-Si系合金材料制成的下托盘极易产生开裂的问题。
为实现以上目的，本发明通过以下技术方案予以实现：一种环保轻量化用于电动汽车下托盘生产的合金材料，该合金材料的成分及质量百分比组成如下：
镁1.0-1.2％；硅0.8-1.0％、铜1.1-1.3％、钛0.9-1.2％；锰0.6-0.8％；石英纤维丝网5.0-9.0％；余量为铝。
一种环保轻量化用于电动汽车下托盘生产的合金材料包括下述生产步骤：
S1、石英纤维丝网制备：
将石英棒或管用氢氧焰熔融拉丝，再用氢氧焰吹管喷吹，制成直径0.7-1μm的石英棉线，对石英棉线进行编织获得石英纤维丝网；
S2、熔炼：
根据合金材料各成分与质量百分比要求进行熔炼，并在氩气中进行精炼，从而获得精炼合金材料；
S3、细化除杂：
向精炼合金材料中加入细化剂进行细化，随后使用除气介质为99.99％纯度的氩气进行除气作业，并通过陶瓷过滤板进行除杂；
S4、锻造：
将经过除杂后的同份精炼合金材料分为等量两份进行锻造，后进行水冷获得合金棒；
S5、热挤压成型：
对两个合金棒进行加热并进行挤压成型，获得平板状的合金板，再将石英纤维丝网置于一块合金板表面，使两块合金板重叠并在加热下熔接形成一块合金板，随后进行冷却淬火即可获得成品合金材料。
可选的，所述S1步骤中，石英纤维丝网表面的孔隙尺寸小于等于1毫米，且石英纤维丝网的软化温度在1700摄氏度。
可选的，所述S1步骤中，石英纤维丝网能在600-1050摄氏度的环境下长期使用。
可选的，所述S2步骤中，熔炼温度为750-800摄氏度，精炼温度为700-750摄氏度，精炼时间在17-22分钟。
可选的，所述S4步骤中，两个合金棒的重量误差小于等于30g。
可选的，所述S4步骤中，铸造温度680-710摄氏度，铸造速度65-90mm/分钟。
可选的，所述S5步骤中，合金棒加热至500-520摄氏度进行热挤压成型，挤压速度在9-15m/分钟。
可选的，所述S5步骤中，两块合金板熔接时温度在600-630摄氏度，并在熔接时对合金板进行捶打。
可选的，所述所述合金材料应用于电动汽车下托盘生产领域。
本发明提供了一种环保轻量化用于电动汽车下托盘生产的合金材料，具备以下有益效果：
该环保轻量化用于电动汽车下托盘生产的合金材料，镁可提高该合金材料的耐蚀性，锰可提高该合金材料的强度，硅可改善该合金材料的流动性，以便降低对该合金材料的加工难度，铜可提高该合金材料的切削性、抗拉强度和冲击韧性，且配合钛对该合金材料增加的柔韧性可进一步提高该合金材料的韧性，降低开裂可能性，而且通过石英纤维丝网的设置可提高由该合金材料制成的下托盘的机械性能，即是是在该合金材料制成的下托盘受到冲击发生破裂时，石英纤维丝网可降低碎裂部分发生脱落的可能性，使得碎裂部分之间仍具有联结作用。
具体实施方式
本发明提供一种技术方案：一种环保轻量化用于电动汽车下托盘生产的合金材料，该合金材料的成分及质量百分比组成如下：
镁1.0-1.2％；硅0.8-1.0％、铜1.1-1.3％、钛0.9-1.2％；锰0.6-0.8％；石英纤维丝网5.0-9.0％；余量为铝。
一种环保轻量化用于电动汽车下托盘生产的合金材料包括下述生产步骤：
S1、石英纤维丝网制备：
将石英棒或管用氢氧焰熔融拉丝，再用氢氧焰吹管喷吹，制成直径0.7-1μm的石英棉线，对石英棉线进行编织获得石英纤维丝网；
S2、熔炼：
根据合金材料各成分与质量百分比要求进行熔炼，并在氩气中进行精炼，从而获得精炼合金材料；
S3、细化除杂：
向精炼合金材料中加入细化剂进行细化，随后使用除气介质为99.99％纯度的氩气进行除气作业，并通过陶瓷过滤板进行除杂；
S4、锻造：
将经过除杂后的同份精炼合金材料分为等量两份进行锻造，后进行水冷获得合金棒；
S5、热挤压成型：
对两个合金棒进行加热并进行挤压成型，获得平板状的合金板，再将石英纤维丝网置于一块合金板表面，使两块合金板重叠并在加热下熔接形成一块合金板，随后进行冷却淬火即可获得成品合金材料。
S1步骤中，石英纤维丝网表面的孔隙尺寸小于等于1毫米，且石英纤维丝网的软化温度在1700摄氏度。
S1步骤中，石英纤维丝网能在600-1050摄氏度的环境下长期使用。
S2步骤中，熔炼温度为750-800摄氏度，精炼温度为700-750摄氏度，精炼时间在17-22分钟。
S4步骤中，两个合金棒的重量误差小于等于30g。
S4步骤中，铸造温度680-710摄氏度，铸造速度65-90mm/分钟。
S5步骤中，合金棒加热至500-520摄氏度进行热挤压成型，挤压速度在 9-15m/分钟。
S5步骤中，两块合金板熔接时温度在600-630摄氏度，并在熔接时对合金板进行捶打。
合金材料应用于电动汽车下托盘生产领域。
该环保轻量化用于电动汽车下托盘生产的合金材料，镁可提高该合金材料的耐蚀性，锰可提高该合金材料的强度，硅可改善该合金材料的流动性，以便降低对该合金材料的加工难度，铜可提高该合金材料的切削性、抗拉强度和冲击韧性，且配合钛对该合金材料增加的柔韧性可进一步提高该合金材料的韧性，降低开裂可能性，而且通过石英纤维丝网的设置可提高由该合金材料制成的下托盘的机械性能，即是是在该合金材料制成的下托盘受到冲击发生破裂时，石英纤维丝网可降低碎裂部分发生脱落的可能性，使得碎裂部分之间仍具有联结作用。
综上，该环保轻量化用于电动汽车下托盘生产的合金材料，该合金材料的成分及质量百分比组成如下：
镁1.0-1.2％；硅0.8-1.0％、铜1.1-1.3％、钛0.9-1.2％；锰0.6-0.8％；石英纤维丝网5.0-9.0％；余量为铝；
一种环保轻量化用于电动汽车下托盘生产的合金材料包括下述生产步骤：
石英纤维丝网制备：将石英棒或管用氢氧焰熔融拉丝，再用氢氧焰吹管喷吹，制成直径0.7-1μm的石英棉线，对石英棉线进行编织获得石英纤维丝网；
熔炼：根据合金材料各成分与质量百分比要求进行熔炼，并在氩气中进行精炼，从而获得精炼合金材料；
细化除杂：向精炼合金材料中加入细化剂进行细化，随后使用除气介质为99.99％纯度的氩气进行除气作业，并通过陶瓷过滤板进行除杂；
锻造：将经过除杂后的同份精炼合金材料分为等量两份进行锻造，后进行水冷获得合金棒；
热挤压成型：对两个合金棒进行加热并进行挤压成型，获得平板状的合金板，再将石英纤维丝网置于一块合金板表面，使两块合金板重叠并在加热下熔接形成一块合金板，随后进行冷却淬火即可获得成品合金材料；
该环保轻量化用于电动汽车下托盘生产的合金材料，镁可提高该合金材料的耐蚀性，锰可提高该合金材料的强度，硅可改善该合金材料的流动性，以便降低对该合金材料的加工难度，铜可提高该合金材料的切削性、抗拉强度和冲击韧性，且配合钛对该合金材料增加的柔韧性可进一步提高该合金材料的韧性，降低开裂可能性，而且通过石英纤维丝网的设置可提高由该合金材料制成的下托盘的机械性能，即是是在该合金材料制成的下托盘受到冲击发生破裂时，石英纤维丝网可降低碎裂部分发生脱落的可能性，使得碎裂部分之间仍具有联结作用。

Claims (10)

  1. 一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：该合金材料的成分及质量百分比组成如下：
    镁1.0-1.2％；硅0.8-1.0％、铜1.1-1.3％、钛0.9-1.2％；锰0.6-0.8％；石英纤维丝网5.0-9.0％；余量为铝。
  2. 根据权利要求1所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述一种环保轻量化用于电动汽车下托盘生产的合金材料包括下述生产步骤：
    S1、石英纤维丝网制备：
    将石英棒或管用氢氧焰熔融拉丝，再用氢氧焰吹管喷吹，制成直径0.7-1μm的石英棉线，对石英棉线进行编织获得石英纤维丝网；
    S2、熔炼：
    根据合金材料各成分与质量百分比要求进行熔炼，并在氩气中进行精炼，从而获得精炼合金材料；
    S3、细化除杂：
    向精炼合金材料中加入细化剂进行细化，随后使用除气介质为99.99％纯度的氩气进行除气作业，并通过陶瓷过滤板进行除杂；
    S4、锻造：
    将经过除杂后的同份精炼合金材料分为等量两份进行锻造，后进行水冷获得合金棒；
    S5、热挤压成型：
    对两个合金棒进行加热并进行挤压成型，获得平板状的合金板，再将石英纤维丝网置于一块合金板表面，使两块合金板重叠并在加热下熔接形成一块合金板，随后进行冷却淬火即可获得成品合金材料。
  3. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S1步骤中，石英纤维丝网表面的孔隙尺寸小于等 于1毫米，且石英纤维丝网的软化温度在1700摄氏度。
  4. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S1步骤中，石英纤维丝网能在600-1050摄氏度的环境下长期使用。
  5. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S2步骤中，熔炼温度为750-800摄氏度，精炼温度为700-750摄氏度，精炼时间在17-22分钟。
  6. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S4步骤中，两个合金棒的重量误差小于等于30g。
  7. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S4步骤中，铸造温度680-710摄氏度，铸造速度65-90mm/分钟。
  8. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S5步骤中，合金棒加热至500-520摄氏度进行热挤压成型，挤压速度在9-15m/分钟。
  9. 根据权利要求2所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述S5步骤中，两块合金板熔接时温度在600-630摄氏度，并在熔接时对合金板进行捶打。
  10. 根据权利要求1-9任一项所述的一种环保轻量化用于电动汽车下托盘生产的合金材料，其特征在于：所述合金材料应用于电动汽车下托盘生产领域。
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