CN105799007A - 一种复合板带及其制造方法 - Google Patents

一种复合板带及其制造方法 Download PDF

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CN105799007A
CN105799007A CN201610302587.0A CN201610302587A CN105799007A CN 105799007 A CN105799007 A CN 105799007A CN 201610302587 A CN201610302587 A CN 201610302587A CN 105799007 A CN105799007 A CN 105799007A
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plate strip
enhancement layer
complex plate
tensile
layer
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孙丰文
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Nanjing Forestry University
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Nanjing Forestry University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明涉及管道制造技术领域。本发明提供的复合板带，该复合板带包括从内至外依次设置的周向抗张增强层、周向抗张层、粘结层和轴向增强层，所述周向抗张增强层包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层为纵向木单板或纵向竹帘，所述轴向增强层为横向木单板或横向竹帘。本发明提供的复合板带中所述轴向增强层裁剪和组坯时，使第二纤维的方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；该柔性木基复合板带可以连续化快速成型，在长度方向上具有优良的弯曲缠绕特性、在径向和周向由极高的强度和刚度。

Description

一种复合板带及其制造方法
技术领域
本发明涉及管道制造技术领域，尤其是涉及一种复合板带及其制造方法，具体的是一种缠绕性好的复合板带及其制造方法。
背景技术
水资源严重短缺，分布不平衡是制约我国经济发展、生态环境和人民生活改善的主要瓶颈。我国“十二五”规划中水利发展的思路和重点是：根据国家区域发展战略，建设一批跨流域调水和重要水源工程；优化水资源配置，强化水资源调度，加快南水北调西线工程前期工作、开展西南地区重点水源工程规划论证、缓解我国水资源供给不足的局面，从根本上解决我国的水资源短缺问题。发展输水管道是解决我国水资源分布不平衡的重要途径。目前在给排水工程领域普遍采用塑料管道、水泥管道和金属管道。塑料管道质轻、光滑且耐腐蚀，但刚度和强度方面有所不足，而且大量消耗石油资源；水泥管道重量大、运输安装极不方便；金属管道造价高、能耗大、且消耗大量矿产资源。
现有的发明专利如CN201510206970.1提供了一种竹基复合管的制造方法或其他专利提供了一种木基复合管的制造方法，但其制造用缠绕材料竹片和胶粘剂胶合的二合板均存在着柔性不足、缠绕性能不佳等缺陷，导致缠绕效率低、缠绕工艺要求高、并且容易造成缠绕缺陷。
发明内容
要解决的技术问题
本发明的目的在于提供一种复合板带，以解决在现有技术手段下竹基复合管和木基复合管的制造方法中使用的缠绕材料竹片和胶粘剂胶合的二合板均存在着柔性不足、缠绕性能不佳等缺陷，导致缠绕效率低、缠绕工艺要求高、并且容易造成缠绕缺陷的技术问题。
技术方案
本发明提供的复合板带，包括从内至外依次设置的周向抗张增强层、周向抗张层、粘结层和轴向增强层，所述周向抗张增强层包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层为纵向木单板或纵向竹帘，所述轴向增强层为横向木单板或横向竹帘。
进一步地，所述横向木单板或横向竹帘的厚度为1.0mm-3.0mm，含水率为6-12％。
进一步地，所述纵向木单板的厚度为0.5mm-1.2mm，含水率为8-16％。
进一步地，所述纵向竹帘的厚度为0.2mm-1.5mm，含水率为8-16％。
进一步地，所述粘结层为热熔胶膜层，其厚度为0.1-0.25mm。
本发明还提供一种如上所述的复合板带的制造方法，其中，采用多层大幅面压机制成整幅板，再裁剪接长制备；或先将各层材料裁剪成等宽度的长条形，再由连续单层压机中连续组坯、热压、冷压制备。
其中，具体步骤为：
S1、将所述周向抗张增强层、周向抗张层、粘结层和轴向增强层均裁剪成宽度相同的条状，其中所述轴向增强层裁剪时，使纤维方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；
S2、将所述周向抗张增强层、周向抗张层、粘结层和轴向增强层顺序铺装成4层的板坯；
S3、将所述板坯送入热压机；
S4、从热压机取出所述板坯并迅速装入冷压机中。
进一步地，所述步骤S3中所述板坯在温度为130-180℃、单位压力为0.3MPa-0.8MPa条件下热压1-5min。
进一步地，所述步骤S4中所述板坯在相同单位压力下使板坯冷却降温至100℃以下。
进一步地，复合板带宽度为10cm-30cm。
有益效果
本发明提供的复合板带包括从内至外依次设置的周向抗张增强层、周向抗张层、粘结层和轴向增强层，所述周向抗张增强层包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层为纵向木单板或纵向竹帘，所述轴向增强层为横向木单板或横向竹帘。本发明提供的复合板带中所述轴向增强层裁剪和组坯时，使第二纤维的方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；该柔性木基复合板带可以连续化快速成型，在长度方向上具有优良的弯曲缠绕特性、在径向和周向由极高的强度和刚度。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一提供的复合板带的周向抗张增强层的结构示意图；
图2为本发明实施例一提供的复合板带的周向抗张层的结构示意图；
图3为本发明实施例一提供的复合板带的轴向增强层的结构示意图。
附图标记：
1-周向抗张增强层；11-胶线网格布；2-周向抗张层；
22-第一纤维；4-轴向增强层；41-第二纤维；
42-螺旋角。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一
图1为本发明实施例一提供的复合板带的周向抗张增强层的结构示意图，图2为本发明实施例一提供的复合板带的周向抗张层的结构示意图，图3为本发明实施例一提供的复合板带的轴向增强层的结构示意图。如图1至图3所示本实施例一提供的复合板带，该复合板带包括从内至外依次设置的周向抗张增强层1、周向抗张层2、粘结层和轴向增强层4，所述周向抗张增强层1包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层2为纵向木单板或纵向竹帘，所述纵向指木单板或竹帘的第一纤维22方向与复合板带缠绕方向(即左右方向)一致的方向。所述轴向增强层4为横向木单板或横向竹帘，所述横向指木单板或竹帘的第二纤维41的方向与板带缠绕方向近似垂直(即上下方向)或成一定夹角的方向，亦即与管道长度方向一致或基本一致的方向。
本发明提供的复合板带其中所述轴向增强层4裁剪时，使第二纤维41的方向与宽度方向(轴向增强层上下方向为宽度方向)的夹角等于板带缠绕使用时的螺旋角42；该柔性木基复合板带可以连续化快速成型，在长度方向上具有优良的弯曲缠绕特性、在径向和周向由极高的强度和刚度。
进一步地，所述横向木单板或横向竹帘的厚度为1.0mm-3.0mm，含水率为6-12％。
进一步地，所述纵向木单板的厚度为0.5mm-1.2mm，含水率为8-16％。所述纵向竹帘的厚度为0.2mm-1.5mm，含水率为8-16％。
进一步地，所述粘结层为热熔胶膜层，其厚度为0.1-0.25mm，所述粘结层指热熔胶膜，包括EVA、PO、PES、PA、TPU。而且热熔胶膜层能够起到很好的内外阻隔和防渗透作用。
本发明还提供一种如上所述的复合板带的制造方法，其中，具体步骤为：
S1、将所述周向抗张增强层1、周向抗张层2、粘结层和轴向增强层4均裁剪成宽度相同的条状，将各层材料裁剪成与压机幅面相匹配的规格尺寸。其中所述轴向增强层4裁剪时，使纤维方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；
该柔性木基复合板带可以连续化快速成型，在长度方向上具有优良的弯曲缠绕特性、在径向和周向由极高的强度和刚度。
S2、将所述周向抗张增强层1、周向抗张层2、粘结层和轴向增强层4顺序铺装成4层的板坯；
S3、将所述板坯送入热压机；
S4、从热压机取出所述板坯并迅速装入冷压机中；将卸压后的板材齐边并裁成宽度为10-30cm的板条，板条接长后制成柔性木基多元复合板带。
进一步地，所述步骤S3中所述板坯在温度为130-180℃、单位压力为0.3MPa-0.8MPa条件下热压1-5min。
进一步地，所述步骤S4中所述板坯在相同单位压力下使板坯冷却降温至100℃以下。
本发明还提供一种管道制造方法，包括上述复合板带，采用多层大幅面压机制成整幅板，再裁剪接长制备；或先将各层材料裁剪成等宽度的长条形，再由连续单层压机中连续组坯、热压、冷压制备，
其中实施例一的方法包括以下具体步骤：
S11、内衬层制备；
S21、强化层材料制备；
S31、木质基础层材料制备；
S41、复合板带制备。
所述的步骤S11内衬层制备：在有锥度的直管模具上均匀地涂一层脱膜剂、套上或缠绕一层涤纶薄膜、在涤纶薄膜表面涂布不饱和树脂后再依次缠绕(同时涂不饱和树脂)2-3层表面毡和针织毡、网格布等纤维制品，并在其表面再次涂布不饱和树脂，树脂固化后形成防渗且内壁光滑的内衬层，树脂等级为防腐级或食品级。
所述的步骤S21强化层材料制备：①碳纤维材料强化：将碳纤维材料制成一定宽度及适当长度的布状、网格状或膜状长条，绕成卷备用；②铝合金及其他金属材料强化：将铝合金或其他金属材料制成0.2～1.0mm厚、一定宽度和适当长度带状片材，绕成卷备用；③高性能合成纤维材料强化：将高性能合成纤维材料制成有宽度、长度的布状、网格状或膜状长条，绕成卷备用。
所述的步骤S31木质基础层材料制备：①将木段旋切成木单板，干燥至含水率6％-12％；②按照制造木质胶合板的方法，将木质单板单面涂布酚醛胶粘剂，纵横交错组坯，或纵向单板纹理和横向单板纹理成一角度组坯，加压胶合成结构不对称的木质二合板；③将木质二合板锯切成定宽的板条，再用铣斜面机将其端头铣成斜面并涂胶，采用斜面搭接胶合接长方式接成适当的长度，收卷备用。
实施例二
S1、首先将各层材料裁剪成宽度相同的条状材料，宽度为10-30cm；特别是轴向增强层4裁剪时，必须使纤维方向与宽度方向的夹角等于板带缠绕使用时的螺旋角42；
第二步：在连续铺装线上，顺序铺装周向抗张增强层1、周向抗张层2、粘结层和轴向增强层4，其中周向抗张增强层1和粘结层两层的接头处重贴铺装，其余两层的接头对接并与另外两层的街头错位铺装，形成4层结构的条状连续板坯；
第三步：连续的条状板坯同步进入单层连续热压-冷压成型机制成宽度为10-30cm的柔性木基多元复合板带；其中单层连续热压-冷压成型过程中需保证温度为130-180℃、单位压力为0.3-0.8MPa条件下热压1-5min；冷压压力不低于0.3MPa，冷压过程使板带温度100℃以下。
综上所述，本发明提供的复合板带包括从内至外依次设置的周向抗张增强层、周向抗张层、粘结层和轴向增强层，所述周向抗张增强层包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层为纵向木单板或纵向竹帘，所述轴向增强层为横向木单板或横向竹帘。本发明提供的复合板带中所述轴向增强层裁剪和组坯时，使第二纤维的方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；该柔性木基复合板带可以连续化快速成型，在长度方向上具有优良的弯曲缠绕特性、在径向和周向由极高的强度和刚度。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对进一步地部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

1.一种复合板带，其特征在于，包括从内至外依次设置的周向抗张增强层、周向抗张层、粘结层和轴向增强层，所述周向抗张增强层包括热熔胶线制成的网格布或浸渍粘合树脂的玻纤、植物纤维网格布，所述周向抗张层为纵向木单板或纵向竹帘，所述轴向增强层为横向木单板或横向竹帘。
2.根据权利要求1所述的复合板带，其特征在于，所述横向木单板或横向竹帘的厚度为1.0mm-3.0mm，含水率为6-12％。
3.根据权利要求1所述的复合板带，其特征在于，所述纵向木单板的厚度为0.5mm-1.2mm，含水率为8-16％。
4.根据权利要求1所述的复合板带，其特征在于，所述纵向竹帘的厚度为0.2mm-1.5mm，含水率为8-16％。
5.根据权利要求1所述的复合板带，其特征在于，所述粘结层为热熔胶膜层，其厚度为0.1-0.25mm。
6.一种如权利要求1-5任意一项所述的复合板带的制造方法，其特征在于，采用多层大幅面压机制成整幅板，再裁剪接长制备；或先将各层材料裁剪成等宽度的长条形，再由连续单层压机中连续组坯、热压、冷压制备。
7.据权利要求6所述的复合板带的制造方法，其特征在于，具体步骤为：
S1、将所述周向抗张增强层、周向抗张层、粘结层和轴向增强层均裁剪成宽度相同的条状，其中所述轴向增强层裁剪时，使纤维方向与宽度方向的夹角等于板带缠绕使用时的螺旋角；
S2、将所述周向抗张增强层、周向抗张层、粘结层和轴向增强层顺序铺装成4层的板坯；
S3、将所述板坯送入热压机；
S4、从热压机取出所述板坯并迅速装入冷压机中。
8.据权利要求6所述的复合板带的制造方法，其特征在于，所述步骤S3中所述板坯在温度为130℃-180℃、单位压力为0.3MPa-0.8MPa条件下热压1-5min。
9.据权利要求6所述的复合板带的制造方法，其特征在于，所述步骤S4中所述板坯在相同单位压力下使板坯冷却降温至100℃以下。
10.据权利要求6所述的复合板带的制造方法，其特征在于，复合板带宽度为10cm-30cm。
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