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Negative pressure needling method of quartz fiber felt

A technology of quartz fiber and needle punching method, which is applied in the field of textile processing, and can solve the problems of low fiber bundle formation efficiency, low needle punching efficiency, and low strength between layers of quartz fiber felt, so as to achieve enhanced cohesion and increased strength between layers , The effect of strengthening the riveting effect

Inactive Publication Date: 2018-02-09
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that in the process of forming quartz fiber felt by needle punching, due to the smooth surface of the quartz fiber, when the needle barbs to form a fiber bundle, some quartz fibers have a low friction coefficient, resulting in low fiber bundle formation efficiency, resulting in a dense needle punching. The efficiency is low, which eventually leads to low interlayer strength of the quartz fiber mat

Method used

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  • Negative pressure needling method of quartz fiber felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] After the quartz fiber has been opened, carded and laid, the quartz fiber web passes through the upper surface of the acupuncture table at a conveying speed of 5m / min, and the fluffy quartz fiber web is treated under the condition of a negative pressure of 0.1MPa generated by a vacuum pump. Negative pressure adsorption, the adsorbed quartz fiber web shrinks in the direction of negative pressure operation, the needles on the upper needling board above the acupuncture table perform acupuncture on the adsorbed quartz fiber web at a frequency of 1000 times / min, and the upper needling board The needle density is 1000 pieces / m. The quartz fiber mat after negative pressure needle punching was cut and weighed.

Embodiment 2

[0010] After the quartz fiber has been opened, carded and laid, the quartz fiber web passes through the upper surface of the acupuncture table at a conveying speed of 10m / min, and the fluffy quartz fiber web is treated under the condition of a negative pressure of 0.1MPa generated by the centrifugal fan. Negative pressure adsorption is performed, and the adsorbed quartz fiber web shrinks in the direction of negative pressure operation. The needles of the upper acupuncture plate above the acupuncture table perform acupuncture on the adsorbed quartz fiber web at a frequency of 1500 times / min. The needle density of the board is 1500 pieces / m. The quartz fiber mat after negative pressure needle punching was cut and weighed.

Embodiment 3

[0012] After the quartz fiber has been opened, carded and laid, the quartz fiber web passes through the upper surface of the acupuncture table at a conveying speed of 15m / min, and the fluffy quartz fiber web is treated under the condition of a negative pressure of 0.1MPa generated by a vacuum pump. Negative pressure adsorption, the adsorbed quartz fiber web shrinks in the direction of negative pressure operation, the needles on the upper acupuncture plate above the acupuncture table perform acupuncture on the adsorbed quartz fiber web at a frequency of 2000 times / min, and the upper acupuncture plate The needle density is 2000 pieces / m. The quartz fiber mat after negative pressure needle punching was cut and weighed.

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Abstract

The invention relates to a negative pressure needling method of a quartz fiber felt, and belongs to the technical field of textile processing. According to the negative pressure needling method, in aquartz fiber felt needling technology, when a quartz fiber net which is subjected to opening carding and lapping passes through the upper surface of a needling platform, the fluffy quartz fiber net issubjected to negative pressure adsorption under a negative pressure condition, the adsorbed quartz fiber net is shrunk in the negative pressure running direction, and when the quartz fiber net is shrunk, an upper needling plate needling needle located above the needling platform needles the shrunk quartz fiber net at the same time. The negative pressure firstly absorbs and shrinks the fluffy quartz fiber net to make the quartz fiber net dense, the needling frequency is reduced, and the damage to the needling needle to the fiber is reduced; through the negative pressure adsorption effect of the negative pressure on quartz fiber bundles, the problem is solved that the needling efficiency of the quartz fiber net is low since the surface of the quartz fiber is smooth, thus the needling effectand the finished product quality of the quartz fiber felt are improved, and the production cost is lowered.

Description

technical field [0001] The invention relates to a negative pressure acupuncture method for quartz fiber felt, which belongs to the technical field of textile processing. Background technique [0002] Quartz fiber felt is due to its characteristics of chemical corrosion resistance, fire prevention, flame retardant, waterproof, aging resistance, weather resistance, insulation and so on. It is widely used as fiberglass base cloth, anti-corrosion, heat preservation, fire-proof and flame-retardant, waterproof material, sound insulation material, thermal lining material, filter material, epoxy copper clad board and electrical insulation products, etc. The production process of conventional quartz fiber felt is to open and comb the quartz fiber before laying the net, and use a needle with a barb to pass through several layers of quartz fiber nets for needle punching. When the needles penetrate the quartz fiber net, the quartz The fiber bundles pass through the quartz fiber nets, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H18/02
CPCD04H18/02
Inventor 徐卫林潘恒曹根阳刘欣夏治刚
Owner WUHAN TEXTILE UNIV
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