WO2009135442A1 - 镁合金蜂窝板及其生产工艺 - Google Patents

镁合金蜂窝板及其生产工艺 Download PDF

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Publication number
WO2009135442A1
WO2009135442A1 PCT/CN2009/071692 CN2009071692W WO2009135442A1 WO 2009135442 A1 WO2009135442 A1 WO 2009135442A1 CN 2009071692 W CN2009071692 W CN 2009071692W WO 2009135442 A1 WO2009135442 A1 WO 2009135442A1
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Prior art keywords
honeycomb
magnesium alloy
honeycomb core
core structure
panel
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PCT/CN2009/071692
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English (en)
French (fr)
Inventor
权高峰
周鹤龄
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Dalian Jiaotong University
YINGKOU YINHE MAGNESIUM AND ALUMINUM ALLOY CO Ltd
Beijing Wonderroad Magnesium Technology Co Ltd
Original Assignee
Dalian Jiaotong University
YINGKOU YINHE MAGNESIUM AND ALUMINUM ALLOY CO Ltd
Beijing Wonderroad Magnesium Technology Co Ltd
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Application filed by Dalian Jiaotong University, YINGKOU YINHE MAGNESIUM AND ALUMINUM ALLOY CO Ltd, Beijing Wonderroad Magnesium Technology Co Ltd filed Critical Dalian Jiaotong University
Priority to KR1020107027687A priority Critical patent/KR101445213B1/ko
Priority to CA2727530A priority patent/CA2727530C/en
Priority to AU2009243975A priority patent/AU2009243975B2/en
Priority to DK09741717.4T priority patent/DK2284002T3/en
Priority to EP09741717.4A priority patent/EP2284002B1/en
Priority to US12/991,910 priority patent/US20110070458A1/en
Publication of WO2009135442A1 publication Critical patent/WO2009135442A1/zh
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/544—Torsion strength; Torsion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/10—Trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1234—Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]

Definitions

  • the present invention relates to a honeycomb structure composed of a metal, and more particularly to a magnesium alloy honeycomb panel and a process for producing the same. Background technique
  • the honeycomb panel is a high compressive, lightweight mechanical and engineering structure that is bonded by the upper and lower panels and the honeycomb core.
  • honeycomb panels There are currently three types of honeycomb panels commonly used, including paper honeycomb panels, FRP honeycomb panels, and aluminum honeycomb panels.
  • the honeycomb core of the paper honeycomb panel is made of paper impregnated resin and glued with plant or synthetic polymer and fiber composite board. The cost is low, the strength is low, and it is not resistant to moisture. Now it is only used for structures such as light mobile houses;
  • Honeycomb panel is a composite honeycomb panel made of glass fiber and resin. It has the characteristics of light weight and high strength. It has the disadvantages of low impact strength, easy aging and use of non-renewable resources.
  • Aluminum honeycomb panel is made of aluminum honeycomb. The core and aluminum alloy panel are glued together, which has high strength and good weather resistance. It has been applied to structural manufacturing such as airplanes and high-speed trains.
  • the magnesium alloy is lighter in weight, and in particular has a much higher specific strength advantage than the aluminum alloy.
  • the precise bending of magnesium alloy foil is very difficult, and the honeycomb panel requires the honeycomb core to be a regular hexagonal structure. In order to exert the maximum mechanical bearing effect, it is required to accurately grasp the molding parameters and molding process of magnesium alloy foil to meet the structural and performance requirements of the honeycomb panel. Summary of the invention
  • the present invention aims to disclose a magnesium alloy honeycomb panel; and at the same time, in view of precise bending of the magnesium alloy foil
  • the present invention also discloses a production process of a magnesium alloy honeycomb panel to meet the structural and performance requirements of the honeycomb panel.
  • a magnesium alloy honeycomb panel which is formed by bonding upper and lower plates and a honeycomb core structure, wherein the upper and lower plates are composed of a rolled magnesium alloy plate, and the honeycomb core structure is made of a magnesium alloy foil.
  • a hexagonal honeycomb structure that is precisely plastically deformed.
  • the thickness of the honeycomb panel is 8 to 45 mm ( ⁇ ), wherein the thickness of the upper and lower plates is 0.6 to 3. 5 ⁇ , and the height of the hexagonal honeycomb aperture of the honeycomb core structure is 5 to 15 mm.
  • the thickness of the magnesium alloy foil constituting the honeycomb core structure is 0.08 - 0. 25 mm, and the width is 6 ⁇ 38 ⁇ .
  • a production process of a magnesium alloy honeycomb panel as described above including a honeycomb core structure manufacturing process, a panel preparation process, a honeycomb core structure and a panel bonding combination, a process of forming a honeycomb panel by pressure curing, and a surface treatment as required
  • the process is characterized in that the manufacturing process of the honeycomb core structure comprises the following steps:
  • the foil strip having a thickness of 0.08 ⁇ 0. 25mm;
  • magnesium alloy foil strip cutting according to the honeycomb panel design requirements, the magnesium alloy foil is cut into foil strips with a width of 6 ⁇ 38mm;
  • the magnesium alloy foil strip is formed into a honeycomb core material by precise and non-damaged bending: a plastic deformation of a certain angle is performed, and a transition radius of the formed fillet is 0. 4 ⁇ 1. 2 mm, corresponding to the forming strain
  • the rate is between 0.01 and 0. 00001 per second (/ s ); the transition radius of the above-mentioned angle plastic deformation is not more than 1.2 ⁇ , but it should be as large as possible to ensure no material damage;
  • honeycomb core material is assembled, pasted and cured to form a honeycomb core structure:
  • the honeycomb core structure is made to have a thickness of 6 to 38 mm, and the hexagonal honeycomb aperture has a height of 5 to 15 mm.
  • the magnesium alloy honeycomb panel of the present invention has a strength not lower than or higher than that of an aluminum honeycomb panel of the same specification, and the mass per unit area of the honeycomb panel is 25% to 33% lower than the latter, and the compressive strength is lower. Increase by more than 20%. It can be used as a siding, floor, partition, etc. in transportation equipment such as spacecraft, aircraft, lightweight high-speed trains, and urban rail trains. It can also be applied to other structures as panels or partitions, etc., which can achieve significant weight reduction. effect.
  • Figure 1 shows a foil strip cut to a certain thickness and width by rolling
  • Figure 2 shows the magnesium alloy foil accurately and without damage bending to form a honeycomb core material
  • Figure 3 shows the honeycomb core material laminate, bonded to a honeycomb core structure
  • Figure 4 shows that the panel is bonded to the honeycomb core and cured to form a honeycomb panel.
  • Preparing the upper panel 2 and the lower panel 3 rolling the sheet with the same or different composition of magnesium alloy, according to the requirements of use, hot-rolled or cold-rolled sheets can be selected, and materials such as AZ31B, AZ41 or ZK60 can be selected according to user requirements.
  • the thickness is 0. 6 ⁇ 3. 5mm, the width is 450 ⁇ 1250mm ⁇ 600 ⁇ 3000mm, after surface treatment, the glue is used for standby;
  • honeycomb core structure 1 is glued and combined with the upper panel 2 and the lower panel 3: the honeycomb core structure 1 and the upper panel 2 and the lower panel 3 are glued and cured to form a honeycomb having a thickness of 8 to 45 inches.
  • the board has the same size as the panel, as shown in Figure 4;
  • the upper and lower plates and the honeycomb core structure of the magnesium alloy honeycomb panel of the invention adopts a magnesium alloy, and the honeycomb core structure is a rolled high-strength magnesium alloy foil which is precisely shaped and positioned by cutting, plastic bending. Bonded to form a honeycomb core structure having a regular hexagonal honeycomb hole, which is bonded to a high-strength magnesium alloy panel, pressurized and heat-cured or cured at room temperature into a magnesium alloy honeycomb panel having high strength and ultra-light weight.

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  • Laminated Bodies (AREA)
  • Metal Rolling (AREA)

Description

镁合金蜂窝板及其生产工艺 技术领域
本发明涉及由金属组成的蜂窝结构， 尤其涉及一种镁合金蜂窝板及其生 产工艺。 背景技术
蜂窝板是一种高压缩强度、 轻量化的机械和工程结构， 系由上、 下面板 和蜂窝芯通过粘结而成。
现在常用的蜂窝板有三种， 包括纸质蜂窝板、 玻璃钢蜂窝板和铝质蜂窝 板。 纸质蜂窝板的蜂窝芯由纸浸渍树脂， 与植物或合成高分子与纤维复合板 胶合而成， 其成本低， 强度低， 不耐潮湿， 现在仅用于轻型移动房屋之类的 结构； 玻璃钢蜂窝板是一种由玻璃纤维和树脂制成的复合材料蜂窝板， 具有 质轻、 强度高的特点， 缺点是耐冲击强度低、 易老化和使用不可再生资源； 铝蜂窝板系由铝质蜂窝芯和铝合金面板胶接而成， 强度高， 耐候性较好， 现 在已经应用于飞机、 高速列车等结构制造。
随着交通运输装备轻量化的发展， 许多原来的铝合金结构面临进一步减 重要求， 铝蜂窝板由于质量大， 已然不能满足新的需要了。
将制造蜂窝板的铝合金、 镁合金的性能进行对比， 相应的参数见表 1 :
表 1
Figure imgf000003_0001
可见， 镁合金质量更轻， 尤其具有比铝合金高得多的比强度优势。 然而 镁合金箔材的精确弯曲成型十分困难， 而蜂窝板要求蜂窝芯是正六角形结构 才能发挥最大的力学承载效应， 因此要求准确掌握镁合金箔材成型参数和成 型工艺， 以满足蜂窝板的结构和性能要求。 发明内容
鉴于现有的各种蜂窝板所存在种种缺陷而不能满足更高性能、 更高程度 的轻量化的新需要， 本发明旨在公开一种镁合金蜂窝板； 同时鉴于镁合金箔 材精确弯曲成型的难题， 本发明同时公开了一种镁合金蜂窝板的生产工艺， 以达到蜂窝板的结构和性能要求。
本发明的技术解决方案是这样实现的：
一种镁合金蜂窝板， 由上、 下面板和蜂窝芯结构胶接而成， 其特征在于 所述上、 下面板由轧制的镁合金板材构成， 所述蜂窝芯结构是由镁合金箔材 精确塑性变形而成的六边形蜂窝状结构。
所述蜂窝板的厚度为 8 ~ 45毫米（ 匪 ） ， 其中所述上、 下面板的厚度分 别为 0. 6 ~ 3. 5匪， 蜂窝芯结构的六边形蜂窝孔径的高度为 5 ~ 15mm, 其过渡 圓角半径为 0. 4 ~ 1. 2匪， 构成所述蜂窝芯结构的所述镁合金箔材的厚度为 0. 08 - 0. 25mm, 宽度为 6 ~ 38匪。
一种如前所述的镁合金蜂窝板的生产工艺， 包括蜂窝芯结构的制造过程、 面板制备过程、 蜂窝芯结构与面板胶接组合、 加压固化形成蜂窝板的过程及 按要求进行表面处理的过程， 其特征在于所述蜂窝芯结构的制造过程包括如 下步骤：
①采用热轧或冷轧方法轧制镁合金箔材： 将镁合金轧制成厚度为 0. 08 ~ 0. 25mm的箔带；
②镁合金箔带的切割： 按蜂窝板设计要求将镁合金箔材切割成宽为 6 ~ 38mm的箔带；
③镁合金箔带经精确、 无损伤弯曲成型而形成蜂窝芯坯材： 进行确定角 度的塑性变形， 形成的过渡圓角半径为 0. 4 ~ 1. 2mm, 与此相对应， 成型应变 速率在 0. 01 ~ 0. 00001每秒（/ s )之间； 上述确定角度塑性变形的过渡圓角 半径不大于 1. 2匪， 但又要尽可能大， 以确保不造成材料损伤；
④蜂窝芯坯材经组装定位、 粘贴和固化， 形成蜂窝芯结构： 制成的蜂窝 芯结构的厚度为 6 ~ 38mm, 六边形蜂窝孔径的高度为 5 ~ 15mm。
相比现有技术， 本发明所述的镁合金蜂窝板的强度不低于或者高于同规 格的铝制蜂窝板， 其单位面积蜂窝板的质量比后者低 25 % ~ 33 % , 压缩强度 提高 20 %以上。 在航天器、 飞行器、 轻量化高速列车、 城市轨道列车等交通 运输装备中作为壁板、 地板、 隔板等部件， 也可应用于其他结构中作为面板 或隔板等， 可以实现明显的减重效果。 如用于新一代地铁列车地板， 配合镁 合金骨架， 将可实现比现有铝合金结构轻 25 %以上的效果， 从而解决了轨道 列车内装结构超重的问题， 实现大幅度减重、 降低噪音和振动， 将显著提高 列车制造和运营的综合效率， 改善搭乘条件， 实现人文化交通。 附图说明
图 1表示经轧制切割成一定厚度和宽度的箔带；
图 2表示镁合金箔材精确、 无损伤弯曲成型而成为蜂窝芯坯材； 图 3表示蜂窝芯坯材叠层、 粘结成蜂窝芯结构；
图 4表示面板与蜂窝芯胶接组合、 固化成型而成为蜂窝板。
图中
1——蜂窝芯结构 2——上面板 3——下面板 具体实施方式
现结合镁合金蜂窝板生产工艺流程示意图对本发明作进一步的具体说 明：
( 1 )制造蜂窝芯结构 1 : 将镁合金， 如 AZ31B, 采用热轧或冷轧方式轧 制成厚为 0. 08 ~ 0. 25匪箔材， 经热处理和表面处理后， 其性能参数如表 1所 示； 将上述箔材切割成宽为 6 ~ 38匪的箔带， 如图 1所示；
再将上述箔带进行精确、 无损伤弯曲成型而形成蜂窝芯坯材， 如图 2 所 示，形成的过渡圓角半径为 0. 4匪，与之相对应，成型的应变速率为 0. 0015/ s ; 将成型后的蜂窝芯坯材置于工作平台上， 上胶、 定位、 叠合后， 在 80 ~
120 °C的指定温度和 0. 3 ~ 1. OMPa的指定压力下固化，制成正六边形蜂窝芯结 构 1 , 其厚度为 6 ~ 38mm, 正六边形蜂窝孔径的高度为 5 ~ 15mm, 如图 3所示；
( 2 )制备上面板 2和下面板 3:采用相同或不同成分的镁合金轧制板材， 根据使用要求可选择热轧或冷轧板， 材料根据用户要求可选择 AZ31B、 AZ41 或 ZK60等合金， 厚度为 0. 6 ~ 3. 5mm，幅面为 450 ~ 1250mm χ 600 ~ 3000mm, 经表面处理后上胶备用；
( 3 )蜂窝芯结构 1与上面板 2和下面板 3胶接组合： 将前述蜂窝芯结构 1和上面板 2、 下面板 3上胶、 加压固化， 制成厚度为 8 ~ 45匪的蜂窝板， 其 幅面尺寸与面板相同， 如图 4所示；
( 4 )按要求进行表面处理： 如通过阳极氧化以获得更高的表面硬度、 耐 磨性及耐腐蚀性能等。
本发明所述的镁合金蜂窝板的上、 下面板和蜂窝芯结构均采用镁合金， 所述的蜂窝芯结构是轧制而成的高强度镁合金箔材经过切割、 塑性弯曲精确 成型、 定位粘结制成具有正六边形蜂窝孔的蜂窝芯结构， 经过与高强度镁合 金面板胶接， 加压热固化成或常温固化为具有高强度、 超轻量化的镁合金蜂 窝板。
以上所述， 仅为本发明的较佳具体实施方式， 但本发明的保护范围并不 局限于此， 任何熟悉本技术领域的技术人员在本发明披露的技术范围内， 根 据本发明的技术方案及其发明构思加以等同替换或改变， 都应涵盖在本发明 的保护范围之内。

Claims

权 利 要 求 书
1、 一种镁合金蜂窝板， 由上、 下面板和蜂窝芯结构胶接而成， 其特征在 于所述上、 下面板由轧制的镁合金板材构成， 所述蜂窝芯结构是由镁合金箔 材精确塑性变形而成的六边形蜂窝状结构。
2、根据权利要求 1所述的镁合金蜂窝板， 其特征在于所述蜂窝板的厚度 为 8 ~ 45mm, 其中所述上、 下面板的厚度分别为 0. 6 ~ 3. 5匪， 蜂窝芯结构的 六边形蜂窝孔径的高度为 5 ~ 15mm, 其过渡圓角半径为 0. 4 ~ 1. 2匪， 构成所 述蜂窝芯结构的所述镁合金箔材的厚度为 0. 08 ~ 0. 25mm, 宽度为 6 ~ 38匪。
3、 一种如权利要求 2所述的镁合金蜂窝板的生产工艺， 包括蜂窝芯结构 的制造过程、 面板制备过程、 蜂窝芯结构与面板胶接组合、 加压固化形成蜂 窝板的过程及按要求进行表面处理的过程， 其特征在于所述蜂窝芯结构的制 造过程包括如下步骤：
①采用热轧或冷轧方法轧制镁合金箔材： 将镁合金轧制成厚度为 0. 08 ~ 0. 25mm的箔带；
②镁合金箔材的切割： 按蜂窝板设计要求将镁合金箔材切割成 6 ~ 38mm 宽的箔带；
③镁合金箔带精确、 无损伤弯曲成型： 进行确定角度的塑性变形， 形成 的过渡圓角半径为 0. 4 ~ 1. 2mm , 与此相对应， 成型应变速率在 0. 01 ~ 0. 00001 / s之间；
④蜂窝芯坯材经叠层定位、 粘贴和固化， 形成蜂窝芯结构： 制成的蜂窝 芯结构的厚度为 6 ~ 38mm, 六边形蜂窝孔径的高度为 5 ~ 15mm。
PCT/CN2009/071692 2008-05-09 2009-05-08 镁合金蜂窝板及其生产工艺 Ceased WO2009135442A1 (zh)

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