CN1128912C - 制造一种扁平带的方法 - Google Patents
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Abstract
制造扁平带的方法,其中由许多平行布置的、与横向纤维编织的载体纤维组成的载体纤维织物埋入由塑料组成的粘合剂基体,其特征为:一由热塑性材料组成的薄膜(40’,40”)压紧在载体纤维织物(38)的至少一个宽面上,热塑性塑料薄膜(40’,40”)的热塑性材料在热量作用下熔化,载体纤维织物(38)在压紧力作用下用由热塑性材料组成的熔液浸湿,接着在保持压紧力的情况下使热塑性材料冷却,形成硬化的粘合剂基体。
Description
技术领域
本发明涉及一种制造扁平带的方法,其中由许多平行布置的、与横向纤维编织在一起的载体纤维组成的载体纤维织物埋入一塑料粘合剂基体内。
背景技术
例如由WO96/21785已知这种类型的加强带。在那里加强带用在拉直的和/或平的构件上。具有由热固性塑料,特别是环氧树酯组成的粘合剂基体的加强薄板不允许具有小弯曲半径的弯曲,因此用它不可能作超过构件棱边的、弓形加强件。例如为了在钢筋混凝土梁或钢筋混凝土板中保证压力区和拉力区之间的连接可靠性并避免剪切裂纹和横向裂纹,弓形加强是必需的。
发明内容
本发明的目的是,开发一种制造扁平带的方法,它使得在连续加工过程中可以特别经济地加工。
为实现上述目的,本发明提供一种制造扁平带的方法,其中由许多平行布置的、与横向纤维编织的载体纤维组成的载体纤维织物埋入由塑料组成的粘合剂基体,其中一由热塑性材料组成的薄膜压紧在载体纤维织物的至少一个宽侧面上,热塑性塑料薄膜的热塑性材料在热量作用下熔化,载体纤维织物在压紧力作用下用热塑性材料的熔液浸湿,其特征为:载体纤维织物和至少一个热塑性塑料薄膜在连续加工方法中被挤压和加热,接着在保持压紧力的情况下使热塑性材料冷却,形成硬化的粘合剂基体。
本发明的方法可用于制造扁平带薄板,该扁平带薄板用于加强承载的或传递载荷的构件,尤其是由混凝土、砖墙、塑料或木材组成的构件。
按本发明的方案从这样的想法出发,即在采用热塑性塑料作为粘合剂基体时可以得到特别经济的加工方法。
第一种解决方案设想,将一由热塑性材料组成的薄膜压在载体纤维织物的至少一个宽侧面上,使薄膜的热塑性材料在热量的作用下熔化,载体纤维材料在压力作用下用热塑性材料的熔液浸湿,接着在保持压力的情况下使热塑性材料冷却,形成硬化的粘合剂基体。
根据本发明一种优选的结构载体纤维织物和至少一条热塑性塑料薄膜在一连续方法中挤压,加热和冷却。这里载体纤维织物和至少一条热塑性塑料薄膜适宜于从贮存辊中抽出并沿一穿通路程挤压、加热和冷却。这里载体纤维织物优先沿载体纤维方向输送给穿通路程。
本发明另一种优良的结构设想,在热塑性塑料外露的外侧上附加地给载体纤维织物输送一保护薄膜,并在加热和冷却过程期间在压力作用下大面积地与载体纤维织物尤其是可拆卸地结合。保护薄膜也可以从一贮存辊中抽出,并和热塑性塑料薄膜及载体纤维织物一起输送给穿通路程。本发明一种优选的结构设想,载体纤维织物、至少一条热塑性塑料薄膜和某些情况下存在的至少一条保护薄膜在一双带压力机的两条环形带之间挤压、加热和冷却。适宜于由一种不熔化的塑料材料组成的保护薄膜用来使挤压工具在加热过程中不与熔化的热塑性塑料接触而受它污染。它在穿通路程之后可以重新从完工扁平带上撕下,并卷绕在一单独的薄膜辊上,以便例如重新使用。另一方面保护薄膜可以留在完工扁平带上,在使用现场才从它上面撕下来。
扁平带在穿通路程之后可以卷绕在一材料辊上,也可以将扁平带在穿通路程之后平行于流通方向分割成具有规定宽度的条,并在某些情况下以这种形式分别卷绕在一材料辊上。此外还可以在某些情况下将分割成条的扁平带切断成具有规定长度的段,形成扁平带薄板。
上述第一种工艺方案具有这样的优点,用它可以制造任意厚度的扁平带。这里热塑性塑料薄膜只需要在其壁厚方面与载体纤维织物的厚度、从而还有其吸收能力相匹配。
本发明另一种尤其是适合于制造扁平带薄带的方案设想,载体纤维织物用一种尤其是由精细粉碎的热塑性塑料颗粒组成的水基悬浮液浸湿,接着将浸湿的载体纤维织物在热量的作用下干燥,然后加热,使沉积在载体纤维织物上的热塑性塑料熔化,并重新冷却,形成刚硬的粘合剂基体。从辊子上拉出的载体纤维织物有利地连续通过悬浮液漂浮物,接着穿过一蒸发段,一熔化段和一冷却段。此外载体纤维织物在粘合剂基体硬化以前、期间或以后可以挤压或压延。用这种方法形成的扁平带可以在压力和热量作用下多层地相互大面积结合,以加大最终产品的壁厚。
按本发明方法制造的扁平带具有许多平行布置的载体纤维,它们可以和横向纤维编织形成载体纤维织物,并和横向纤维一起埋入由热塑性材料组成的粘合剂基体内,其中粘合剂基体挤入载体纤维织物空余的中间空隙。埋入粘合剂基体内的载体纤维织物可以至少在一个宽侧面上带有可拆卸的保护薄膜。
为了形成粘合剂基体考虑聚烯烃,乙烯基聚合物,聚酰胺,聚缩醛,聚碳酸酯,聚氨酯和离聚物组中的热塑性塑料。载体纤维适宜于包含碳素纤维,或者做成碳素纤维。载体纤维和横向纤维也可以包含芳族聚酰胺纤维,玻璃纤维或聚丙烯纤维,或做成这些纤维。
作为保护薄膜例如考虑热固性塑料,如聚酯树脂或弹性体塑料,如硅橡胶或有机硅纸(Silikonpapier)。
附图说明
下面借助于在附图中示意表示的实施例对本发明作较详细的说明。它们表示:
图1在应用双带压力机的情况下制造扁平带薄板的流程示意图;
图2在应用悬浮液的情况下制造扁平带薄板的流程示意图。
具体实施方式
下面说明的方法确定用来制造扁平带和扁平带薄板,它具有由许多相互平行布置、可弯曲或弯曲倒伏(biegeschlaffen)的载体纤维,一定数量的和载体纤维横向编织的横向纤维和一由热塑性塑料组成的稳定化的粘合剂基体组成的复合结构。热塑性塑料粘合剂基体用来使扁平带在使用温度时比较刚硬,并通过加热到玻璃化转变点以上的温度可塑性变形。
图1中示意表示的用来制造这种扁平带的设备包括一带有两条在反向辊22上向相反方向回转的压紧带24的双带压力机20,压紧带以其相互面对面的分支26围成一用于以下述方法加工的无端长带30的穿通路程28,并在宽面方向对无端长带加压。为了形成无端长带30从五个贮存辊32,34′,34″,36′,36″上抽出一条载体纤维织物38,两条热塑性塑料薄膜40′,40″和两条保护薄膜42′,42″,并在双带压力机20的输入端的反向辊22处以所示方法宽面地相向移动。无端长带30沿穿通路程28在保持压紧带26的压紧力的情况下首先穿过加热段44,热塑性塑料薄膜40′,40″的热塑性塑料材料沿加热段熔化,并挤入载体纤维织物的空隙内。保护薄膜42′,42″用来使压紧带26不受熔化的热塑性塑料材料的污染。在穿通路程28的后续行程中无端长带穿过一冷却段46,在冷却段内热塑性材料硬化,在载体纤维织物内形成一粘合剂基体。在双带压力机20后面用这种方法制造的扁平带为如图所示可以卷绕在一辊子48上。另一种选择是扁平带也可以平行于流通方向分割成条,并卷在不同的辊子上,或者切断成扁平带薄板。用所述方法在必要时可以制造不同厚度的扁平带。在这种情况下只需要注意,热塑性塑料薄膜40′,40″的厚度,还有提供的热塑性塑料材料的数量与载体纤维织物38的厚度。从而还有该织物空隙内的吸收体积相匹配。
与此不同在图2中示意表示的设备确定和仅仅适合于用来制造比较薄壁的扁平带。在这种情况下从贮存辊32上抽出的载体纤维织物38经过转向辊50牵引穿过一悬浮液52,它特别是包含精细粉碎的热塑性塑料颗粒的水基悬浮液。载体纤维织物38在悬浮液52中用水基热塑性塑料悬浮液浸湿,并作为无端长带30沿穿通路程54首先到达一蒸发工位56,在该工位中在加热器58的作用下水分沿箭头60方向从无端长带30中蒸发掉。接着无端长带30穿过加热段62,在它里面留在载体纤维带上的热塑性塑料颗粒被熔化。在随后的冷却段中熔化的热塑性塑料材料硬化,形成粘合剂基体。在辊式压力机(压延机)66中无端长带得到其最终的厚度,然后卷绕在一材料辊48上。在这种情况下无端长带在压力机66之后,卷绕或切断成扁平带薄板之前,也可以平行于流通方向68分割成条。
综上所述确定如下:本发明涉及一种制造扁平带的方法,在该方法中由许多平行布置的与横向纤维编织的载体纤维组成的载体纤维织物38埋入一由塑料组成的粘合剂基体内。按照本发明载体纤维织物用由热塑性材料组成的粘合剂基体加强,并防止液体渗透。为了形成粘合剂基体载体纤维织物38可以和由热塑性材料组成的薄膜40′,40″压紧在一起,加热并重新冷却,另一种选择是,载体纤维织物38首先用尤其是水基热塑性塑料悬浮液52浸透,接着加热使水分蒸发,热塑性材料熔化。并重新冷却形成刚硬的粘合剂基体。
Claims (10)
1.制造扁平带的方法,其中由许多平行布置的、与横向纤维编织的载体纤维组成的载体纤维织物埋入由塑料组成的粘合剂基体,其中一由热塑性材料组成的薄膜(40′,40″)压紧在载体纤维织物(38)的至少一个宽侧面上,热塑性塑料薄膜(40′,40″)的热塑性材料在热量作用下熔化,载体纤维织物(38)在压紧力作用下用热塑性材料的熔液浸湿,其特征为:载体纤维织物(38)和至少一个热塑性塑料薄膜(40′,40″)在连续加工方法中被挤压和加热,接着在保持压紧力的情况下使热塑性材料冷却,形成硬化的粘合剂基体。
2.按权利要求1的方法,其特征为:所述载体纤维织物(38)和所述至少一条热塑性塑料薄膜(40′,40″)从贮存辊(32,34′,34″)中抽出,并沿一穿通路程(28)压紧、加热和冷却。
3.按权利要求1的方法,其特征为:载体纤维织物(38)沿载体纤维方向输送给穿通路程(28)。
4.按权利要求1的方法,其特征为:在热塑性塑料薄膜(40′,40″)的外露外表面上附加地给载体纤维织物输送一保护薄膜(42′,42″),在加热和冷却过程期间在压紧力作用下与该外表面大面积地结合。
5.按权利要求4的方法,其特征为:保护薄膜(42′,42″)也从一贮存辊(36′,36″)中抽出,并一起输送给穿通路程(28)。
6.按权利要求1的方法,其特征为:在穿通路程(28)之后扁平带(30)卷绕在至少一个材料辊(48)上。
7.按权利要求1的方法,其特征为:在穿通路程(28)之后扁平带(30)分割成平行于流通方向排列的条。
8.按权利要求1的方法,其特征为:在穿通路程(28)之后扁平带(30)切断,形成扁平带薄板。
9.按权利要求1的方法,其特征为:所述载体纤维织物(38)、所述至少一条热塑性塑料薄膜(40′,40″)和存在的保护薄膜(42′,42″)在一双带压力机(20)的两个循环压紧带(24)之间压紧、加热和冷却。
10.按权利要求1的方法,其特征为:许多单个扁平带在压力和热量作用下相互大面积结合,以加大壁厚。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904185.7 | 1999-02-02 | ||
DE19904185A DE19904185A1 (de) | 1999-02-02 | 1999-02-02 | Verfahren zur Herstellung eines Flachbandes |
Publications (2)
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CN1334892A CN1334892A (zh) | 2002-02-06 |
CN1128912C true CN1128912C (zh) | 2003-11-26 |
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CN99816007A Expired - Fee Related CN1128912C (zh) | 1999-02-02 | 1999-12-06 | 制造一种扁平带的方法 |
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EP (1) | EP1149215B1 (zh) |
JP (1) | JP2002536212A (zh) |
KR (1) | KR20010113668A (zh) |
CN (1) | CN1128912C (zh) |
AT (1) | ATE234978T1 (zh) |
CA (1) | CA2361761A1 (zh) |
DE (2) | DE19904185A1 (zh) |
DK (1) | DK1149215T3 (zh) |
ES (1) | ES2195643T3 (zh) |
HK (1) | HK1042128A1 (zh) |
PT (1) | PT1149215E (zh) |
WO (1) | WO2000046461A1 (zh) |
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-
1999
- 1999-02-02 DE DE19904185A patent/DE19904185A1/de not_active Withdrawn
- 1999-12-06 ES ES99959383T patent/ES2195643T3/es not_active Expired - Lifetime
- 1999-12-06 CN CN99816007A patent/CN1128912C/zh not_active Expired - Fee Related
- 1999-12-06 AT AT99959383T patent/ATE234978T1/de not_active IP Right Cessation
- 1999-12-06 DE DE59904677T patent/DE59904677D1/de not_active Expired - Fee Related
- 1999-12-06 CA CA002361761A patent/CA2361761A1/en not_active Abandoned
- 1999-12-06 JP JP2000597512A patent/JP2002536212A/ja active Pending
- 1999-12-06 DK DK99959383T patent/DK1149215T3/da active
- 1999-12-06 WO PCT/EP1999/009541 patent/WO2000046461A1/de not_active Application Discontinuation
- 1999-12-06 EP EP99959383A patent/EP1149215B1/de not_active Expired - Lifetime
- 1999-12-06 PT PT99959383T patent/PT1149215E/pt unknown
- 1999-12-06 KR KR1020017009590A patent/KR20010113668A/ko not_active Application Discontinuation
-
2002
- 2002-05-31 HK HK02104107.0A patent/HK1042128A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
EP1149215A1 (de) | 2001-10-31 |
DK1149215T3 (da) | 2003-07-14 |
KR20010113668A (ko) | 2001-12-28 |
CN1334892A (zh) | 2002-02-06 |
CA2361761A1 (en) | 2000-08-10 |
PT1149215E (pt) | 2003-07-31 |
ATE234978T1 (de) | 2003-04-15 |
DE59904677D1 (de) | 2003-04-24 |
HK1042128A1 (zh) | 2002-08-02 |
EP1149215B1 (de) | 2003-03-19 |
DE19904185A1 (de) | 2000-08-03 |
ES2195643T3 (es) | 2003-12-01 |
WO2000046461A1 (de) | 2000-08-10 |
JP2002536212A (ja) | 2002-10-29 |
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