CN105051278A - 形成固化矿物纤维产品的方法 - Google Patents

形成固化矿物纤维产品的方法 Download PDF

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CN105051278A
CN105051278A CN201380064952.3A CN201380064952A CN105051278A CN 105051278 A CN105051278 A CN 105051278A CN 201380064952 A CN201380064952 A CN 201380064952A CN 105051278 A CN105051278 A CN 105051278A
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mineral
width
fiber
curing oven
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D·尼尔森
G·罗森伯格
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Rockwool AS
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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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Producing Shaped Articles From Materials (AREA)

Abstract

本发明涉及一种形成固化的矿物纤维产品的方法，所述固化的矿物纤维产品至少包括含有矿物纤维的顶层和含有矿物纤维的底层，所述方法包括步骤：提供包括未固化的矿物棉的顶层网幅；提供包括固化的矿物棉的底层网幅；将未固化的顶层网幅与固化的底层网幅连接以形成组装后的层压制件；通过将组装后的层压制件输送到固化炉中而在固化炉中对所述顶层网幅进行固化，所述固化炉包括用于使所述组装后的层压制件固化的上输送机和下输送机，所述组装后的层压制件位于所述上输送机和所述下输送机之间；其中所述未固化的顶层网幅在进入所述固化炉之后被压缩至少50％。

Description

形成固化矿物纤维产品的方法
技术领域
本发明涉及形成固化的矿物纤维产品的方法。
背景技术
从例如WO95/20708和WO2008/155401可知，形成由矿物材料的熔体生产出的矿物纤维的初级网幅是众所周知的，其中所述初级网幅由摆式输送机布置在二级网幅上。然后处理所述二级网幅以形成具有底层和至少一顶层的多层矿物纤维产品，所述顶层具有比所述底层更高的密度。
在WO2008/155401中描述了一种方法，其中在网幅压缩之后以类似“剥离”的方法将顶层与二级网幅分开，即通过水平刀片将网幅在厚度方向上分开。然后将在二级网幅上的底层固化，此后将分开的顶层与矿物纤维网幅重新连接以形成多层产品，如夹心或双密度产品。
发明内容
与该已知方法相关的问题是在顶层与底层重新连接之前还需要对顶层进行处理。然而，通过本发明可以实现能够通过一种形成固化的矿物纤维产品的方法来来改进该方面，所述固化的矿物纤维产品至少包括含有矿物纤维的顶层和含有矿物纤维的底层，所述方法包括步骤：
-提供包括未固化的矿物棉的顶层网幅；
-提供包括固化的矿物棉的底层网幅；
-将所述未固化的顶层网幅与所述固化的底层网幅连接以形成组装后的层压制件；
-通过将所述组装后的层压制件输送到固化炉中而在固化炉中对所述顶层网幅进行固化，所述固化炉包括用于使所述组装后的层压制件固化的上输送机和下输送机，所述组装后的层压制件位于所述上输送机和所述下输送机之间；
其中所述未固化的顶层网幅在进入所述固化炉之后被压缩至少50％。
通过本发明发现，在未固化的顶层被层压到底层上时而被固化的底层可以用作衬背层，并且由此进入到固化炉的入口可以用作未固化的顶层的压缩区。这是有利的，因为可以省略或者至少减少在连接和固化之前压缩所述顶层的步骤。
优选地，所述顶层的纤维取向基本是水平的。然而，所述底层的纤维取向优选地基本是竖直的，即基本在顶层的压缩方向上，因为这样增加了底层的压缩强度。
总之，当在本说明书中使用像“水平”和“竖直”或者类似的方向参考基准之类的术语时，这些术语应该理解为相对术语，例如在术语“竖直”指的是网幅或产品的厚度方向的情况下，“水平”指的是垂直于网幅或产品的厚度的方向。
在本发明的一个优选实施方式中，底层的竖直纤维取向是通过将固化的底层网幅切割成片层实现的，所述片层被转过90°并重新组装以形成具有竖直纤维取向的底层网幅。这样提供了具有额外压缩强度的最终双密度产品，正如这样确保了当压缩顶层时增强的衬背层。
在本发明的一个替代性实施方式中，底层的竖直纤维取向是通过使矿物纤维网幅打褶来实现的。
通过本发明可以实现，通过根据所述方法压缩顶层，可以使所述顶层具有两到三倍于所述底层密度的密度。
附图说明
下面参照附图更详细地描述本发明，其中：
图1是根据现有技术的制造矿物纤维产品的工艺的示意图；以及
图2是本发明的一个实施方式的局部示意性侧视图。
具体实施方式
下面参照图1描述其中涉及根据本发明的方法的根据现有技术的方法。
矿物熔体被纤维化并且纤维聚集在渗透式输送机上作为气流成网的网幅(未示出)。气流成网的网幅1从输送机上通过到达一对摆式输送机3，该对摆式输送机3使网幅1交叠以形成交叠网幅4。然后使交叠网幅4通过辊子组5以使交叠网幅4承受高度压缩和纵向压缩。
水平刀片定位在点7处，所述水平刀片将网幅4在水平面上进行切割以将网幅4分成两层，底层6和覆盖顶层2。底层6在第一固化炉10中固化，然后由圆锯11切割成片层9。片层9由圆锯12切割成与最终产品所需的尺寸对应的长度，然后使片层转过90°以形成片层状底部14。
在图1中的与WO2008/155401的披露内容对应的实施方式中，通过利用锯15在水平面中切割层而将覆盖顶层2分成两层，以形成上覆盖层和下覆盖层。上覆盖层和下覆盖层在点18处放置在片层状底部14的每侧上，以形成被覆盖的片层状部20并且后续在第二固化炉16中固化。
图2示出了当两个层2、6进入第二固化炉16时顶层2重新连接到底层6的位置。底层6优选地是矿物纤维的片层9，所述矿物纤维具有竖直的纤维取向，并且在形成这种结构之前已经被固化。顶层2是未固化的并且当其进入位于固化炉16入口处的固化炉的上带17与固化的底层6之间的咬口中时被压缩。如图2中所示，顶层2在其进入固化炉16之前的厚度是T1，当顶层2已经进入固化炉16在带17与固化的底层6之间而被压缩时，所述厚度减小到T2。因为底层6被固化，并且优选地还配置有具有竖直取向纤维(即在顶层2的压缩方向上取向的纤维)的片层，所以底层6具有相对高的压缩强度，并且由此仍然是未固化的顶层2被压缩而不是底层6。据此可以实现顶层2厚度的显著减小。
示例
一种隔热屋顶产品的示例包括由岩棉的片层元件制成的底层，被提供有高密度岩棉顶层。该产品被制造成满足至少60kPa的压缩强度需求。因此，具有竖直纤维取向的固化的片层状底层被制造成具有至少60kPa的压缩强度。
具有125.3mm的初始厚度和46.7kg/m3的密度的未固化的顶层被压缩到25.3mm的厚度和231.4kg/m3的密度，相当于79.8％的压缩。这种压缩需要22.2kPa的压力，该压力刚好在片层状底层的至少60kPa的压缩强度以下，因此可以根据本发明来制造这种产品。
固化的底层优选地包括具有竖直纤维取向的片层，因为这在竖直方向上提供了高的压缩强度，以及由此在进入固化炉入口对顶层进行相对高的压缩是可行的。然而，当固化的底层具有水平纤维取向或者任何其他纤维取向时本发明也是适用的，只要调节相关的工艺参数以与这种较低的压缩强度适配。应该提及的是所述压缩强度不仅取决于纤维取向，而且取决于密度和粘结剂含量。

Claims (7)

1.一种形成固化的矿物纤维产品的方法，所述固化的矿物纤维产品至少包括含有矿物纤维的顶层和含有矿物纤维的底层，所述方法包括步骤：
-提供包括未固化的矿物棉的顶层网幅；
-提供包括固化的矿物棉的底层网幅；
-将所述未固化的顶层网幅与所述固化的底层网幅连接以形成组装后的层压制件；
-通过将所述组装后的层压制件输送到固化炉中而在固化炉中对所述顶层网幅进行固化，所述固化炉包括用于使所述组装后的层压制件固化的上输送机和下输送机，所述组装后的层压制件位于所述上输送机和所述下输送机之间；
其中所述未固化的顶层网幅在进入所述固化炉之后被压缩至少50％。
2.根据权利要求1所述的方法，所述顶网幅层被压缩至少60％，优选地至少70％，如75-80％。
3.根据权利要求1或2所述的方法，其中所述顶层的纤维取向是基本水平的。
4.根据权利要求1-3中任一项所述的方法，其中所述底层的纤维取向基本是竖直的。
5.根据权利要求4所述的方法，其中所述底层的竖直纤维取向是通过将矿物纤维网幅切割成片层来实现的，所述片层被转过90°并重新组装以形成所述底层网幅。
6.根据权利要求4所述的方法，其中所述底层的竖直纤维取向是通过使矿物纤维网幅打褶来实现的。
7.根据前述权利要求中任一项所述的方法，其中压缩之后的所述顶层具有两到三倍于所述底层密度的密度。
CN201380064952.3A 2012-12-11 2013-12-05 形成固化矿物纤维产品的方法 Pending CN105051278A (zh)

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PCT/EP2013/075607 WO2014090670A1 (en) 2012-12-11 2013-12-05 A method of forming a cured mineral fibre product

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Publication number Priority date Publication date Assignee Title
CN109071335A (zh) * 2016-03-24 2018-12-21 圣戈班伊索福公司 用于制备自粘矿棉垫的方法
CN109071335B (zh) * 2016-03-24 2021-07-27 圣戈班伊索福公司 用于制备自粘矿棉垫的方法

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EP2931955A1 (en) 2015-10-21
EA201591101A1 (ru) 2015-10-30
CA2894501A1 (en) 2014-06-19
EA031337B1 (ru) 2018-12-28
CA2894501C (en) 2020-01-14
SI2931955T1 (sl) 2017-04-26
US9889639B2 (en) 2018-02-13
PL2931955T3 (pl) 2017-04-28
LT2931955T (lt) 2017-03-27
RS55583B1 (sr) 2017-06-30
WO2014090670A1 (en) 2014-06-19
US20150298449A1 (en) 2015-10-22

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