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Manufacturing method of glass fiber continuous felt

A glass fiber and felt blank technology, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of poor tensile breaking strength, continuous mat not resistant to high temperature, poor molding uniformity, etc., and achieve high bond strength between layers , Improve production efficiency, uniform molding effect

Active Publication Date: 2014-12-10
SHANDONG FIBERGLASS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are certain problems: poor molding uniformity, poor bonding, the obtained continuous felt is not resistant to high temperature, and the tensile breaking strength is not good, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A glass fiber continuous mat is prepared according to the following method:

[0030] a. After drying, the alkali-free glass fiber or medium-alkali glass fiber precursor with a diameter of 6 μm is drawn out through the creel to form a strand. Each strand is composed of 30 glass fiber strands. The strand passes through the wire feed roller and the following The suction of the fan passes through 6 pairs of swing arms with a length of 1200mm. The swing arms throw the original tow horizontally and reciprocatingly on the mesh belt. Uniform felt blank with dense circles of large and small sizes;

[0031] The wire feed rollers are a pair with diameters of 330mm and 100mm respectively. The wire feed speed of the wire feed rollers is 2500m / min, the exhaust speed of the fan is 4.0m / min, and the swing range of the swing arm is 45-60°. The running direction of the belt is perpendicular to the moving direction of the swing arm of the wire throwing equipment;

[0032] b Sprinkle the...

Embodiment 2

[0041] A glass fiber continuous mat is prepared according to the following method:

[0042] a. After drying, the alkali-free glass fiber or medium-alkali glass fiber precursor with a diameter of 12 μm is drawn out through the creel to form a strand. Each strand of strand is composed of 20 strands of glass fiber. The strand passes through the wire feed roller and below The suction of the fan passes through 8 pairs of swing arms with a length of 1200mm. The swing arms throw the original tow horizontally and reciprocatingly on the mesh belt. Uniform felt blank with dense circles of large and small sizes;

[0043] The wire feed rollers are a pair with diameters of 330mm and 100mm respectively. The wire feed speed of the wire feed rollers is 1800m / min, the exhaust speed of the fan is 3.0m / min, and the swing range of the swing arm is 45-60°. The running direction of the belt is perpendicular to the moving direction of the swing arm of the wire throwing equipment;

[0044] b Sprink...

Embodiment 3

[0053] A glass fiber continuous mat is prepared according to the following method:

[0054] a. After drying, the alkali-free glass fiber or medium-alkali glass fiber precursor with a diameter of 18 μm is drawn out through the creel to form a strand. Each strand of strand is composed of 20 strands of glass fiber. The strand passes through the wire feed roller and below The suction of the fan passes through 10 pairs of oscillating arms with a length of 1200mm. The oscillating arms throw the original tow horizontally and reciprocatingly on the mesh belt. Uniform felt blank with dense circles of large and small sizes;

[0055] The wire feed rollers are a pair with diameters of 330mm and 100mm respectively. The wire feed speed of the wire feed rollers is 1200m / min, the exhaust speed of the fan is 2.0m / min, and the swing range of the swing arm is 45-60°. The running direction of the belt is perpendicular to the moving direction of the swing arm of the wire throwing equipment;

[005...

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Abstract

The invention relates to a manufacturing method of a glass fiber continuous felt. The manufacturing method comprises the following steps of drawing out dried glass fiber proto-filaments through a creel to form proto-filament tows, enabling the proto-filament tows to penetrate through 6-12 pairs of swing arms, transversely throwing and laying the proto-filament tows onto a mesh belt through the swing arms in a reciprocating mode to form a felt blank, evenly scattering a bonding agent on the felt blank, curing the felt blank in a drying furnace, and flattening, trimming and taking up the felt blank to obtain the glass fiber continuous felt. The manufactured glass fiber continuous felt is even in forming and high in interlayer bonding strength and tensile failure strength, meanwhile has excellent high-temperature-resisting performance and can be widely applied to chemical plants, thermal power plants, cement plants, lime factories, coking plants, metallurgical plants, asphalt plants, paint spraying plants and high flues and hot air filtration of electric-arc furnaces, oil-fired boilers and incinerators, and the production efficiency is remarkably improved.

Description

technical field [0001] The invention relates to a glass fiber felt, in particular to a method for preparing a glass fiber continuous felt. Background technique [0002] With the rapid development of market economy, glass fiber is widely used in construction, transportation, electronics, electrical appliances, chemical industry, metallurgy, environmental protection, national defense, aerospace and other industries due to its special physical and chemical properties. Due to the continuous expansion of the field of glass fiber, it has attracted widespread attention. The continuous glass fiber mat is made of continuous glass fiber strands, which are randomly dispersed by throwing equipment, laid on the mesh belt, and formed by overlapping the strands and a small amount of binder. . At present, my country's glass fiber continuous precursor mat generally adopts the preparation method of drawing the precursor tube, transporting it to the creel, and introducing it into a wire thr...

Claims

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Application Information

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IPC IPC(8): D04H3/004
Inventor 崔宝山李树栋徐茂忠刘俊峰苏庆康徐彭波刘兴月
Owner SHANDONG FIBERGLASS GRP
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