CN106715109A - 具有连接成薄膜软管的无纺布胶合薄膜带的软管衬 - Google Patents

具有连接成薄膜软管的无纺布胶合薄膜带的软管衬 Download PDF

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CN106715109A
CN106715109A CN201580035857.XA CN201580035857A CN106715109A CN 106715109 A CN106715109 A CN 106715109A CN 201580035857 A CN201580035857 A CN 201580035857A CN 106715109 A CN106715109 A CN 106715109A
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film
flexible pipe
thin film
layer
carrier thin
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R·奥登瓦尔德
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Bkp Bei Rowley Nano Polyester & Co KG GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1656—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section materials for flexible liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B3/02—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 features of form at particular places, e.g. in edge regions
    • B32B3/06—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 features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
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    • B32—LAYERED PRODUCTS
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    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
    • B32B2250/00—Layers arrangement
    • B32B2250/44—Number of layers variable across the laminate
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • 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
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    • B32B2260/04—Impregnation, embedding, or binder material
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2597/00—Tubular articles, e.g. hoses, pipes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

本发明涉及一种用于给管道加衬的软管衬(1)，其包括内薄膜软管(2)、外薄膜软管(3)和布置在所述内薄膜软管和所述外薄膜软管之间的纤维材料层(4)，所述纤维材料层用可硬化的材料浸渍，其中，这两个薄膜软管(2，3)中的至少一个由至少一个软管带(5；51，52)构成，所述至少一个软管带具有一载体薄膜(6)和一无纺布层(7)，所述无纺布层被施加到所述载体薄膜(6)的朝向纤维材料层(4)的薄膜侧上，并且所述至少一个软管带的在软管周向方向上彼此重叠的带边缘(5a，5b)彼此连接。根据本发明，在重叠区域(8)中背离所述纤维材料层(4)的带边缘(5a)仅仅由所述载体薄膜(6)构成，所述载体薄膜在所述重叠区域(8)上突出超过无纺布层(7)，并且所述载体薄膜直接与在所述重叠区域(8)中朝向所述纤维材料层(4)的带边缘(5b)的载体薄膜(6)粘接或者焊接。

Description

具有连接成薄膜软管的无纺布胶合薄膜带的软管衬
技术领域
本发明涉及一种用于给管道加衬的软管衬，其具有内薄膜软管、外薄膜软管和布置在所述内薄膜软管和所述外薄膜软管之间的纤维材料层，所述纤维材料层用可硬化(或可固化的)的材料浸渍，其中，这两个薄膜软管中的至少一个由至少一个软管带构成，所述至少一个软管带具有一载体薄膜和一无纺布层(或者毛毡层、生羊毛层，Vliesschicht)，所述无纺布层被施加到载体薄膜的朝向纤维材料层的薄膜侧上，并且所述至少一个软管带的在软管周向方向上彼此重叠的带边缘彼此连接。
背景技术
例如由DE 10 2012 015 047 A1公知了这种软管衬。
不灵活的、损坏的管道用所谓的换衬方法(Relining-Verfahren)翻修，其中，在现场由可硬化的模塑料制造新管。为此，用可硬化的塑料浸湿的载体材料或加固材料(软管衬)被置入待翻修的旧管中，其中，通常将光硬化的树脂用作可硬化的塑料。在光硬化的树脂的情况中，置入的软管衬被定位并且借助于压力空气被压到旧管的内壁上，并且接着使一个或多个光源、特别是紫外光源运动穿过软管衬，以便从内部借助于发射的光束使软管衬硬化。
由DE 10 2012 015 047公知的软管衬包括内薄膜软管和布置在内薄膜软管上的、由纤维材料构成的层，所述纤维材料由能被紫外光硬化的反应树脂浸湿。内薄膜软管包含苯乙烯密封的、可热焊接的载体材料，所述载体材料在其朝向纤维材料的侧上具有被胶合上的无纺布层，并且所述载体材料包括沿着内薄膜软管延伸的重叠区域，在所述重叠区域中，载体材料的边缘区段彼此热焊接。无纺布层在重叠区域中的位于径向内部的边缘区段的外侧上与在位于径向外部的边缘区段的下侧上的载体材料热焊接，其中，重叠区域中的位于径向外部的边缘区段在其外侧上具有下述的结构，所述结构能够实现反应树脂的持久附着。通过超声波能量将重叠区域中在位于径向外部的边缘区段的PE层和位于径向内部的边缘区段的PE层之间的无纺布材料加热到如下程度，直到PE层的热弹性的塑料材料熔解、液化并且渗入无纺布材料中。在冷却之后获得两个边缘区段之间高强度的并且气密的热焊接连接。
发明内容
与此相对地，本发明的目的在于，进一步改进开头所述类型的软管衬，以使得薄膜端部同时在技术上耗费更低的情况下更好地彼此连接。
根据本发明，该目的通过如下方式实现，在重叠区域中背离纤维材料层的带边缘仅仅由载体薄膜构成，所述载体薄膜在重叠区域上突出超过无纺布层，并且所述载体薄膜直接与在重叠区域中朝向纤维材料层的带边缘的载体薄膜粘接或者焊接。
根据本发明，这两个重叠的带边缘的载体薄膜直接彼此连接，其中，朝向纤维材料层的薄膜侧仍然全面地由无纺布层覆盖。载体薄膜的在重叠区域中上下重叠放置的(或摞着的)带边缘在软管纵向方向上彼此粘接或焊接，其中，可以使用所有公知的薄膜焊接方法、例如超声波焊接或热焊接(“加热元件焊接”)来焊接。根据本发明的软管衬可以具有光硬化的树脂或者也具有其他可硬化的材料、例如由于冷硬化而硬化的材料或由于热而硬化的材料，所述由于热而硬化的材料由于施加给软管衬的热水或蒸汽而硬化。
特别有利地，不仅内薄膜软管而且外薄膜软管分别由至少一个软管带构成，所述至少一个软管带具有载体薄膜和无纺布层，所述无纺布层被施加到载体薄膜的朝向纤维材料层的薄膜侧上，并且所述至少一个软管带的在软管周向方向上彼此重叠的带边缘彼此连接，其中，在重叠区域中背离纤维材料层的带边缘分别仅仅由载体薄膜构成，所述载体薄膜在重叠区域上突出超过无纺布层，并且所述载体薄膜直接与在重叠区域中朝向纤维材料层的带边缘的载体薄膜焊接或者粘接。
优选地，重叠区域中朝向纤维材料层的带边缘处，载体薄膜和胶合上的无纺布层彼此齐平。
薄膜软管可以由一个唯一的软管带或者由多个软管带(扁平薄膜)构成。当应该制造超过所使用的扁平薄膜的最大宽度的薄膜软管时，则后者的情况是特别有利的。在这个实施方式的一个变型中，这些软管带不仅分别具有一个无纺布胶合的齐平的带边缘而且分别具有一个突出的没有无纺布的载体薄膜边缘。在一个另外的变型中，一个软管带具有两个无纺布胶合的齐平的带边缘，并且另一个软管带具有突出的没有无纺布的载体薄膜边缘。
焊接的薄膜软管的朝向纤维材料层的那侧全面地由无纺布层覆盖，其中，这两个带边缘的所述无纺布层可以边到边地(Stoβan Stoβ)彼此贴靠。替换地，载体薄膜和无纺布层彼此齐平处的带边缘可以稍微伸出超过不具有无纺布的另一个带边缘。
载体薄膜可以由一个唯一的薄膜层构成，或者由具有多个薄膜层的复合薄膜构成。在后者的情况中，两个外部的薄膜层优选地由相同的材料构成，因为由相同的材料构成的这两个外部的薄膜层可以较容易地彼此焊接或粘接。
附图说明
能够从说明书、附图和权利要求中得知本发明内容的其他优点和有利的构型。同样，前述的和还进一步实施的特征根据本发明可以分别本身单独地应用或者更多以任意组合的方式使用。所示的和所述的实施方式不能理解为最终的列举，而是相反具有用于说明本发明的示例性的特征。
附图中：
图1a，1b示出根据本发明的具有内薄膜软管的软管衬的第一实施方式的横截面图(图1a)，所述内薄膜软管由焊接的软管带构成；以及示出了未焊接状态中的软管带(图1b)；
图2a，2b示出根据本发明的软管衬的第二实施方式的内薄膜软管的横截面图(图2a)，所述内薄膜软管由两个彼此焊接的软管带构成；以及示出了未焊接状态中的两个软管带(图2b)；
图3a，3b示出根据本发明的软管衬的第三实施方式的内薄膜软管的横截面图(图3a)，所述内薄膜软管由两个彼此焊接的软管带构成；以及示出了未焊接状态中的两个软管带(图3b)；
图4a，4b示出根据本发明的软管衬的第四实施方式的横截面图(图4a)，其中，外薄膜软管由一个焊接的软管带构成；以及示出了未焊接状态中的软管带(图4b)；和
图5示出图1至4的软管衬的焊接变型。
在下述的附图说明中，对于相同的或功能相同的构件而言使用相同的附图标记。
具体实施方式
图1a中所示的软管衬1用于给待翻修的旧管加衬并且包括对于光(特别是对于紫外光)而言是透明的内薄膜软管2、外薄膜软管3和设置在所述内薄膜软管和所述外薄膜软管之间的、在软管周向方向上环绕地延伸的柔性的纤维材料层4，所述纤维材料层由光硬化(或光固化)的、特别是紫外光硬化的材料(树脂)浸湿或浸渍。纤维材料层4是载体带，所述载体带的在软管周向方向上延伸的带端部彼此重叠，以便这样能够实现将软管衬1扩张到不同的直径。替代所示的一个纤维材料层4，也可以存在多个分别彼此包围的纤维材料层。
如同在图1b中所示的那样，内薄膜软管2由一个软管带(扁平薄膜)5构成，该软管带具有载体薄膜6和无纺布层7，所述无纺布层胶合到所述载体薄膜6的朝向纤维材料层4的外侧上。软管带5的两个带边缘5a，5b在软管周向方向上彼此重叠并且在其重叠区域8中彼此粘接或焊接。在重叠区域8中位于径向外部的带边缘5b处，载体薄膜6和胶合上的无纺布层7彼此齐平。在重叠区域8中位于径向内部的带边缘5a不配备有无纺布层，也就是说，该位于径向内部的带边缘在重叠区域8中仅仅由载体薄膜6构成，该载体薄膜在重叠区域上突出超过无纺布层7。在重叠区域8中，带边缘5a的突出的载体薄膜6和带边缘5b的载体薄膜6直接上下重叠地放置并且在软管纵向方向上彼此粘接或者焊接。该纵向粘接或焊接在图1a中以9示出。这样焊接的内薄膜软管2的朝向纤维材料层4的外侧由此全面地由无纺布层7覆盖。因为无纺布层7也由光硬化的材料润湿，所以在光硬化的材料硬化之后，内薄膜软管2通过其无纺布层7与纤维材料层4固定地连接。
图2a中所示的内薄膜软管2与图1a的内薄膜软管的不同之处在于，内薄膜软管2在此由两个软管带51，52构成，所述两个软管带分别具有一个可焊接的载体薄膜6和一个无纺布层7，所述无纺布层胶合到载体薄膜6的朝向纤维材料层4的外侧上。如同在图2b中所示的那样，在左边的软管带52的两个带边缘5b处，载体薄膜6和被胶合上的无纺布层7彼此齐平，而在右边的软管带51的情况中，两个带边缘5a仅仅由载体薄膜6构成，所述载体薄膜分别突出超过无纺布层7。两个软管带51，52的两个带边缘5a，5b在软管周向方向上彼此重叠，其中，软管带51的突出的载体薄膜6在重叠区域8中分别布置在径向内部。在重叠区域8中，带边缘5a的突出的载体薄膜6和带边缘5b的载体薄膜6直接上下重叠地放置并且在软管纵向方向上彼此粘接或者焊接。所述纵向粘接或焊接在图2a中以9a，9b示出。这样焊接的内薄膜软管2的朝向纤维材料层4的外侧由此全面地由无纺布层7覆盖。
图3a中所示的内薄膜软管2与图2a的内薄膜软管的不同之处在于，在此如同在图3a中所示的那样，两个软管带51，52的载体薄膜6分别在一个所述带边缘5a上突出超过无纺布层7并且在另一个所述带边缘5b处与无纺布层7齐平。两个软管带51，52的带边缘5a，5b在软管周向方向上彼此重叠，其中，软管带51，52的突出的载体薄膜6在重叠区域8中分别布置在径向内部。在重叠区域8中，带边缘5a的突出的载体薄膜6和带边缘5b的载体薄膜6直接上下重叠地放置并且在软管纵向方向上彼此粘接或者焊接。该纵向粘接或焊接在图3a中以9a，9b示出。这样焊接的内薄膜软管2的朝向纤维材料层4的外侧由此全面地由无纺布层7覆盖。
图4a中所示的软管衬1与图1a的软管衬的不同之处在于，外薄膜软管3在此由一个软管带5构成，该软管带具有一个载体薄膜6和一个无纺布层7，所述无纺布层胶合到载体薄膜6的朝向纤维材料层4的内侧上。软管带5的带边缘5a，5b在软管周向方向上彼此重叠并且在所述带边缘的重叠区域8中彼此粘接或者焊接。在重叠区域8中位于径向内部的带边缘5b处，载体薄膜6和被胶合上的无纺布层7彼此齐平。在重叠区域8中，位于径向外部的带边缘5a不配备有无纺布层，也就是说，在重叠区域8中仅仅由载体薄膜6构成，所述载体薄膜在重叠区域8上突出超过无纺布层7。在重叠区域8中，带边缘5a的突出的载体薄膜6和带边缘5b的载体薄膜6直接上下重叠地放置并且在软管纵向方向上彼此粘接或者焊接。所述纵向粘接或焊接在图4a中以9示出。这样焊接的外薄膜软管3的朝向纤维材料层4的内侧由此全面地由无纺布层7覆盖。替代如同所示的那样由仅仅一个唯一的扁平薄膜构成，外薄膜软管3也可以类似于图2和3地由多个扁平薄膜构成。
如同在图5中所示的那样，也可能的是，带边缘5b(在所述带边缘处，载体薄膜6和胶合上的无纺布层7彼此齐平)在软管周向方向上突出超过另一个带边缘5a的向后错位的无纺布层7。
视重叠区域8的宽度而定，图1至5中所示的软管衬1的不具有无纺布的带边缘5a的宽度为大约0.3cm至10cm。载体薄膜6可由一个或多个相同或不同材料的层构成。在载体薄膜6呈由多个不同材料的层构成的复合薄膜的形式的情况中有利的是，至少上下重叠的薄膜表面由相同的材料构成，因为由相同的材料构成的薄膜表面则可以较容易地焊接或粘接。
在软管衬的未示出的实施方式中，不仅内薄膜软管2而且外薄膜软管3分别由至少一个软管带5构成，所述至少一个软管带具有载体薄膜6和无纺布层7并且类似于图1至5地构造。
替代光硬化的树脂，纤维材料层4也可以具有其他可硬化的材料、例如由于冷硬化而硬化的材料或由于热而硬化的材料，所述由于热而硬化的材料通过热水或蒸汽硬化，将所述热水或蒸汽施加给软管衬。

Claims (10)

1.一种用于给管道加衬的软管衬(1)，其具有内薄膜软管(2)、外薄膜软管(3)和布置在所述内薄膜软管和所述外薄膜软管之间的纤维材料层(4)，所述纤维材料层用可硬化的材料浸渍，其中，这两个薄膜软管(2，3)中的至少一个由至少一个软管带(5；51，52)构成，所述至少一个软管带具有一载体薄膜(6)和一无纺布层(7)，所述无纺布层被施加到所述载体薄膜(6)的朝向所述纤维材料层(4)的薄膜侧上，并且所述至少一个软管带的在软管周向方向上彼此重叠的带边缘(5a，5b)彼此连接，
其特征在于，
在重叠区域(8)中背离所述纤维材料层(4)的带边缘(5a)仅仅由所述载体薄膜(6)构成，所述载体薄膜在所述重叠区域(8)上突出超过所述无纺布层(7)，并且所述载体薄膜直接与在所述重叠区域(8)中朝向所述纤维材料层(4)的带边缘(5b)的载体薄膜(6)粘接或者焊接。
2.根据权利要求1所述的软管衬，其特征在于，不仅所述内薄膜软管(2)而且所述外薄膜软管(3)分别由至少一个软管带(5；51，52)构成，所述至少一个软管带具有一载体薄膜(6)和一无纺布层(7)，所述无纺布层被施加到所述载体薄膜(6)的朝向所述纤维材料层(4)的薄膜侧上，并且所述至少一个软管带的在软管周向方向上彼此重叠的带边缘(5a，5b)彼此连接；在所述重叠区域(8)中背离所述纤维材料层(4)的带边缘(5a)分别仅仅由所述载体薄膜(6)构成，所述载体薄膜在所述重叠区域(8)上突出超过所述无纺布层(7)，并且所述载体薄膜直接与在所述重叠区域(8)中朝向所述纤维材料层(4)的带边缘(5b)的载体薄膜(6)粘接或者焊接。
3.根据权利要求1或2所述的软管衬，其特征在于，在所述重叠区域(8)中朝向所述纤维材料层(4)的带边缘(5b)处，所述载体薄膜(6)和胶合上的所述无纺布层(7)彼此齐平。
4.根据前述权利要求中任一项所述的软管衬，其特征在于，所述至少一个薄膜软管(2，3)由至少两个软管带(51，52)构成。
5.根据权利要求4所述的软管衬，其特征在于，所述至少两个软管带(51，52)分别具有一个无纺布胶合的齐平的带边缘(5b)和突出的载体薄膜边缘(5a)。
6.根据权利要求4所述的软管衬，其特征在于，一个软管带(52)具有两个无纺布胶合的齐平的带边缘，并且另一软管带(51)具有突出的载体薄膜边缘(5a)。
7.根据前述权利要求中任一项所述的软管衬，其特征在于，所述载体薄膜(6)和所述无纺布层(7)彼此齐平处的带边缘(5b)伸出超过不具有无纺布的另一个带边缘(5a)。
8.根据前述权利要求中任一项所述的软管衬，其特征在于，所述载体薄膜(6)由一个唯一的薄膜层构成。
9.根据权利要求1至7中任一项所述的软管衬，其特征在于，所述载体薄膜(6)由多个薄膜层构成。
10.根据权利要求9所述的软管衬，其特征在于，两个外部的所述薄膜层由相同的材料构成。
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Application publication date: 20170524