Super-thick glass fiber needle-punched felt and method for manufacturing same

A glass fiber mat and glass fiber technology, which is applied in the field of fiber needle-punched mats, can solve the problems of not being able to better meet the use requirements, affecting the development and use of materials, construction difficulties, etc. Effect

A glass fiber mat and glass fiber technology, which is applied in the field of fiber needle-punched mats, can solve the problems of not being able to better meet the use requirements, affecting the development and use of materials, construction difficulties, etc. Effect

CN101012600AInactive Publication Date: 2007-08-08李洪贤
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  • Super-thick glass fiber needle-punched felt and method for manufacturing same

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Embodiment Construction

[0016] As shown in the accompanying drawings, the ultra-thick glass fiber needle felt includes multi-layer glass fiber felt nets 1 that are stacked together, and the glass fiber felt net 1 is a short glass fiber felt net. The vertical short filament fibers 2 and 3 formed by needle punching are interspersed between the layers, and the vertical short filament fibers are interconnected with the fibers of each layer of the felt net; the vertical short filament fibers include multilayer glass fiber mat net The upper surface of the upper surface of the multi-layer glass fiber mat net is inserted into the vertical short filament fiber 2, and the lower surface of the multi-layer glass fiber mat net is inserted into the vertical short filament in the multi-layer glass fiber mat net. Fiber 3; the thickness of the needle felt is 25-50 mm.

[0017] In addition to the above-mentioned embodiments, the present invention can also have other implementations, and all technical solutions formed ...

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Abstract

The invention discloses an extra-thick needle felt of glass fiber, comprising multiple felt layers of glass fiber piling up together. Vertical short fibers formed by needle are set among said multiple felt layers. The vertical short fiber comprises the upper vertical short fiber, which interludes in the multiple felt of glass fiber from the upper face, and the lower vertical short fiber, which interludes in the multiple felt of glass fiber from the lower face. The thickness of said needle felt is 20-50mm. the setting of bidirectional vertical fiber guarantees that the combination of each layer of needle felt is fastness under the status of needle felt with larger thickness. So the invention is not only provided with good temperature resistance and anticorrosion properties but also selective absorption property for gas and liquid. Because of larger thickness and improved intensity, properties such as heat separation, heat preservation and filtration so on are improved.

Description

technical field [0001] The invention relates to a fiber needle felt, especially an ultra-thick and high temperature resistant fiber needle felt. Background technique [0002] With the enhancement of people's awareness of environmental protection, the application range of needle felt is expanding. In the fields of high-temperature purification, heat insulation, heat preservation, etc., the existing needle-punched felts, including glass fiber needle-punched felts, have higher and higher requirements for performances such as temperature resistance, chemical stability, anti-corrosion, and adsorption. Due to the limitation of the structure of the non-woven equipment itself, the thickness of existing products is difficult to exceed 20mm. If the thickness does not meet the requirements for use, it can only be used in multiple layers, which brings difficulties to construction and is unstable during use. Can not better meet the requirements of use. [0003] The main technological p...

Claims

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Application Information

Patent Timeline
08 Aug 2007
Publication
CN101012600A
IPC
D04H1/46; D04H17/00; C03B37/16; D04H1/4218
Inventors
李洪贤