CN107683202A - 用于制造包含微纤维的多层管的方法、以及这样的管 - Google Patents
用于制造包含微纤维的多层管的方法、以及这样的管 Download PDFInfo
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- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
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- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
- B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
- B29C70/323—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould
- B29C70/326—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould by rotating the mould around its axis of symmetry
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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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
- B29K2105/122—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles microfibres or nanofibers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
一种用于以离心铸造方法制造多层管(1)的方法，该多层管(1)带有形成管外轮廓(1a)的外层(2)、形成管内轮廓(1i)的内层(3)以及至少一个中间层(4)，其特征在于，为了形成内层(3)由树脂(5)和微纤维(6)组成的混合物被输送给旋转底模，且通过控制底模转速在预定的时间期间产生树脂(5)和微纤维(6)的预定的离解，从而微纤维的份额在由管内轮廓开始的边界层(3g)中比在面向中间层的稳定层(3s)中更小。同样公开了一种相对应的多层管。
Description
技术领域
本发明涉及一种根据权利要求1所述的用于制造管的方法，以及根据权利要求6所述的管、尤其塑料管。
背景技术
文件EP 0360758 B1公开了一种用于以离心铸造方法制造由塑料、无机填充材料以及玻璃纤维组成的管道部件的方法以及一种根据该方法制造的管道部件。处于内部的层构造为实际上纯粹的树脂层，由此管壁尽可能地平坦地构造。
发明内容
本发明的任务在于，构造带有尽可能平坦的管内轮廓的尽可能稳定的管。
该任务利用专利权利要求1和/或6的特征来解决，其中，本发明的有利的改进方案在从属权利要求中给出。由在说明书、权利要求和/或附图中给出的特征中的至少两个组成的整体的组合也落入到本发明的范围中。在给出的值范围中，处在提及的极限内的值也应作为边界值被看作是公开的且应可以以任意的组合被要求保护。
本发明的思想在于，在将内层制造/施加到(多个)中间层上时使内层与微纤维混合，其在施加期间(尤其借助于离心加速)远离管内轮廓离解。
尤其地，本发明涉及一种用于以离心铸造方法制造多层管的方法，该多层管带有形成管外轮廓的外层、形成管内轮廓的内层以及至少一个中间层，其中，为了形成内层由树脂和微纤维组成的混合物被输送给旋转底模且通过控制底模转速在预定的时间期间产生树脂和微纤维的预定的离解。
因此，在制造向内封闭管的内层(也称为衬层)中一方面实现了，即，该内层在管内轮廓处是平坦的(尤其取决于离心力和在混合体中树脂和微纤维的不同的密度)，但是通过微纤维的实行(Implementierung)而同时具有较高的稳定性。
根据本发明，尤其在向内封闭管的内层的区域中，改善尤其管的如下性质：
- 改善冲击不敏感性和/或
- 避免裂缝和/或
- 改善化学物质抗性(CSS)和/或
- 通过重新形成的内层的增强性质改善内压抗性和/或
- 改善环状可成形性和/或
- 改善在离心方法中抗高温的树脂的可加工性(避免在生产过程期间的裂缝形成)和/或
- 改善扩散紧密性(阻碍层/隔离层)。
在本发明的改进方案中，混合物至少主要地、尤其完全地具有微纤维，其带有小于4000μm、尤其小于2000μm、优选地小于1000μm、还更优选地小于250μm、还更优选地小于125μm的长度。
备选地或附加地，混合物具有微纤维，其带有在50μm和500μm之间、尤其在100μm和300μm之间、优选地在125μm和250μm之间的平均长度。
以该方式，微纤维最优地通过离心加速在管生产期间从管内轮廓移动离开，通过尤其带有2500-2600kg/m3的密度的微纤维尤其至少在底模旋转期间相比树脂(尤其带有1000kg/m3至1200kg/m3的密度的树脂)和/或混合物的另外的组成部分具有更高的密度。
根据一种有利的实施方式，微纤维至少主要地、尤其完全地由玻璃纤维形成。其可以较大量且成本适宜地使用、可容易地加工并且具有最优的化学物理性质。
特别有利的是，混合物包含5%至50%、尤其10%至45%、优选地15%至40%的份额的微纤维。在该范围中，最优的离解可在改善化学物理性质的同时实现。
此外，本发明尤其涉及一种多层管，其带有形成管外轮廓的外层、形成管内轮廓的内层以及至少一个中间层，其中，内层由树脂和微纤维形成且微纤维的份额在从管内轮廓开始的外层中比在面向中间层的稳定层中更小。
尤其地，内层(3)具有尤其在0.1mm和5mm之间的厚度dL，且边界层(3g)具有小于dL/2、优选地小于dL/4的厚度dg。
只要公开了对于方法的特征或值范围，则其同样对于管而言应被看作公开的。
附图说明
本发明的另外的优点、特征以及细节从优选的实施例的描述中以及根据附图得出。其中：
图1示出了根据本发明的管的壁部的实施方式的横截面视图。
图2a示出了在施加内层时根据图1的壁部的放大A，且
图2b示出了在离解时根据图1的壁部的放大A。
具体实施方式
在图中相同的或起相同作用的构件利用相同的参考符号标记。
在图1中放大地且部分区段地呈现了由多个中间层4和向外覆盖中间层4的外层2以及向内覆盖中间层4的内层3形成的管1。
中间层4具有不同的功能，以便稳定地构造管1。那么所述中间层4部分地由树脂、填充材料以及称为粗纱的玻璃纤维组成。
管1以离心方法或离心铸造方法制造，如其基本上在文件EP 0 360 758 B1中描述的那样。利用底模，层以外层2开始经由不同的中间层4直到内层3在旋转底模中分离成。
不同的层的材料经由喷枪被带入到底模中，其中，经由喷枪将组成部分的混合物分别输送给不同的层。对于混合比例的示例在图1中以百分数给出。
根据实施方式的管1的特性存在于内层3的带入中，该内层3不同于现有技术而作为由树脂5和微纤维6组成的混合物被带入。微纤维6在树脂5中如此布置，以至于其首先根据图2a在内层3的厚度dL上几乎相同地分布。通过底模的旋转，产生离心力，利用该离心力微纤维6由于在内层3中的较高的密度而离解，微纤维在管外侧的方向上运动。
在离解时间(在这期间尤其同样树脂5缓慢地硬化)之后，边界层3g形成，其主要由带有相比带有厚度dS的联接到边界层处的稳定层3s更高的树脂份额的树脂构成。稳定层3s由于大量微纤维6相比边界层3g具有更高的稳定性。边界层3g与此相反在管内轮廓1i处具有极其平坦的表面。
因此，内层3与迄今的内层3相比具有更好的管性质，带有如下效果，即，管1总体而言可更薄地构造。
微纤维作为玻璃纤维构造。对于内层3经由喷枪输送的由微纤维6和树脂5组成的混合物具有1:2的混合比例(一份微纤维比两份树脂)。
参考符号列表
1 管
1i 管内轮廓
1a 管外轮廓
2 外层
3 内层
3g 边界层
3s 稳定层
4 (多个)中间层
5 树脂
6 微纤维
dL 内层厚度
dg 边界层厚度
ds 稳定层厚度。
Claims (11)
1.一种用于以离心铸造方法制造多层管(1)的方法，该多层管(1)带有形成管外轮廓(1a)的外层(2)、形成管内轮廓(1i)的内层(3)以及至少一个中间层(4)，其特征在于，为了形成所述内层(3)由树脂(5)和微纤维(6)组成的混合物被输送给旋转底模，且通过控制底模转速在预定的时间期间产生所述树脂(5)和所述微纤维(6)的预定的离解。
2.根据权利要求1所述的方法，其特征在于，所述混合物至少主要地、尤其完全地具有微纤维(6)，其带有小于4000μm、尤其小于2000μm、优选地小于1000μm、还更优选地小于250μm、还更优选地小于125μm的长度。
3.根据权利要求1或2所述的方法，其特征在于，所述混合物具有微纤维(6)，其带有在50μm和500μm之间、尤其在100μm和300μm之间、优选地在125μm和250μm之间的平均长度。
4.根据前述权利要求中任一项所述的方法，其特征在于，所述微纤维(6)至少主要地、优选地完全地由玻璃纤维形成。
5.根据前述权利要求中任一项所述的方法，其特征在于，所述混合物包含5%至50%、尤其10%至45%、优选地15%至40%的份额的微纤维(6)。
6.一种多层管(1)，其带有形成管外轮廓(1a)的外层(2)、形成管内轮廓(1i)的内层(3)以及至少一个中间层(4)，其特征在于，所述内层(3)由树脂(5)和微纤维(6)形成且所述微纤维(6)的份额在从所述管内轮廓(1i)开始的边界层(3g)中比在面向所述中间层(4)的稳定层(3s)中更小。
7.根据权利要求6所述的管，其特征在于，所述微纤维(6)至少主要地、尤其完全地具有小于4000μm、尤其小于2000μm、优选地小于1000μm、还更优选地小于250μm、还更优选地小于125μm的长度。
8.根据权利要求6或7中任一项所述的管，在其中，所述微纤维(6)具有在50μm和500μm之间、尤其在100μm和300μm之间、优选地在125μm和250μm之间的平均长度。
9.根据权利要求6至8中任一项所述的管，在其中，所述微纤维(6)至少主要地、优选地完全地由玻璃纤维形成。
10.根据权利要求6至9中任一项所述的管，在其中，所述内层(3)包含5%至50%、尤其10%至45%、优选地15%至40%的份额的微纤维(6)。
11.根据权利要求6至10中任一项所述的管，在其中，所述内层(3)具有尤其在0.1mm和5mm之间的厚度dL，且所述边界层(3g)具有小于dL/2、优选地小于dL/4的厚度dg。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15171190.0A EP3103624B1 (de) | 2015-06-09 | 2015-06-09 | Verfahren zur herstellung eines mehrschichtigen rohres enthaltend mikrofasern, sowie ein solches rohr |
| EP15171190.0 | 2015-06-09 | ||
| PCT/EP2016/053208 WO2016198172A1 (de) | 2015-06-09 | 2016-02-16 | Verfahren zur herstellung eines mehrschichtigen rohres enthaltend mikrofasern, sowie ein solches rohr |
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| CN107683202A true CN107683202A (zh) | 2018-02-09 |
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| CN201680033420.7A Pending CN107683202A (zh) | 2015-06-09 | 2016-02-16 | 用于制造包含微纤维的多层管的方法、以及这样的管 |
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| US (1) | US20180147753A1 (zh) |
| EP (1) | EP3103624B1 (zh) |
| CN (1) | CN107683202A (zh) |
| AU (1) | AU2016276854A1 (zh) |
| ES (1) | ES2629409T3 (zh) |
| PL (1) | PL3103624T3 (zh) |
| WO (1) | WO2016198172A1 (zh) |
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| CN104160195A (zh) * | 2012-03-09 | 2014-11-19 | 圣戈班穆松桥 | 管状元件和对应的方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ215525A (en) * | 1985-03-23 | 1988-07-28 | Dow Chemical Gmbh | Making fibre reinforced plastics pipes by centrifugal casting |
| MX172392B (es) | 1988-09-23 | 1993-12-15 | Hobas Eng & Durotec Ag | Procedimiento para la fabricacion de partes para conductos de tuberia, a partir de plastico, material de relleno inorganico y fibras de vidrio asi como parte de conducto de tuberia hecho con este procedimiento |
| WO1998056555A1 (de) * | 1997-06-09 | 1998-12-17 | Hobas Engineering Ag | Verfahren zur herstellung von rohrleitungsteilen aus kunststoff und nach diesem verfahren hergestellter rohrleitungsteil |
| AU2365600A (en) * | 1998-12-21 | 2000-07-12 | Magna International Of America, Inc. | Method of making rotationally moulded parts having nano-particle reinforcement |
| US6969480B2 (en) * | 2000-05-12 | 2005-11-29 | Matregen Corp. | Method of producing structures using centrifugal forces |
| US20040000734A1 (en) * | 2002-06-28 | 2004-01-01 | Ucar Carbon Company Inc. | Centrifugal casting of graphite for rigid insulation |
| DE102004056192B4 (de) * | 2004-11-20 | 2007-06-28 | Knoch, Kern & Co. | Kunststoffrohr |
| DE102008033577A1 (de) * | 2008-07-17 | 2010-01-21 | Hobas Engineering Gmbh | Faserverstärktes Kunststoffrohr |
-
2015
- 2015-06-09 ES ES15171190.0T patent/ES2629409T3/es active Active
- 2015-06-09 EP EP15171190.0A patent/EP3103624B1/de not_active Not-in-force
- 2015-06-09 PL PL15171190T patent/PL3103624T3/pl unknown
-
2016
- 2016-02-16 AU AU2016276854A patent/AU2016276854A1/en not_active Abandoned
- 2016-02-16 WO PCT/EP2016/053208 patent/WO2016198172A1/de active Application Filing
- 2016-02-16 CN CN201680033420.7A patent/CN107683202A/zh active Pending
- 2016-02-16 US US15/578,910 patent/US20180147753A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160195A (zh) * | 2012-03-09 | 2014-11-19 | 圣戈班穆松桥 | 管状元件和对应的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016198172A1 (de) | 2016-12-15 |
| EP3103624A1 (de) | 2016-12-14 |
| EP3103624B1 (de) | 2017-05-03 |
| PL3103624T3 (pl) | 2017-09-29 |
| ES2629409T3 (es) | 2017-08-09 |
| AU2016276854A1 (en) | 2018-03-08 |
| US20180147753A1 (en) | 2018-05-31 |
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