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PTFE film-coated needled felt

A technology of needle-punched felt and film coating, applied in the field of needle-punched felt, can solve the problem of low structural strength of PTFE needle-punched felt, and achieve the effect of reasonable and effective clamping and fixing structure, moderate difficulty in disassembly, and not easy to be layered and scattered.

Active Publication Date: 2019-07-19
ZHEJIANG LUCKING ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the PTFE needle felt in this invention patent has the problem of low structural strength

Method used

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  • PTFE film-coated needled felt
  • PTFE film-coated needled felt
  • PTFE film-coated needled felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Example: as attached figure 1 , 2 , 3, 4, 5, 6 and attached Figure 7 As shown, a PTFE-coated needle-punched felt includes a PTFE net base layer 11, a heat insulation cotton layer 12 arranged on both sides of the PTFE net base layer 11, and a PTFE coating layer arranged on the heat insulation cotton layer 12. The multi-layer needle felt structure composed of film layer 13 also includes two pairs of clamping plates 1 arranged on both sides of the side of the multi-layer needle felt structure and used for clamping and fixing. The clamping hole 2 on the end of the board 1 is exposed, and the bolt 3 and the nut 4 arranged on the clamping hole 2 are plugged in, bonded and arranged on the PTFE coating layer 13 and rotated and compressed after being hinged. The nut 4 is in the form of a rotating plate unit 5 used to increase the structural stability of the multi-layer needle felt, which is bonded and arranged on the PTFE coating layer 13 and passes through the rotating plate...

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Abstract

The invention belongs to the technical field of needled felt, and particularly relates to PTFE (polytetrafluoroethylene) film-coated needled felt. Clamping plates, clamping holes, bolts, nuts, a rotating plate unit, a fixing plate unit and an extension sliding sleeve unit are arranged on a PTFE net base layer, a heat insulation cotton layer and a PTFE film covering layer, and the effect that the clamping stability is high after the multi-layer needled felt structure is attached is achieved. The clamping and fixing structure at two sides of the needled felt are reasonable and effective, througha screw joint pressing mode, the structural strength is high, the splitting difficulty is moderate, the needled felt is difficult to layer and scatter and good in overall filtering and using effect.

Description

technical field [0001] The invention belongs to the technical field of needle-punched felts, in particular to a PTFE-coated needle-punched felt. Background technique [0002] PTFE-coated needle-punched felt is a filter material with superior performance, mainly including PTFE grid base layer, heat insulation cotton layer on both sides, and PTFE fiber coating layer on both sides of the outermost side, to cope with high temperature conditions filtering requirements. On the other hand, the above-mentioned multi-layer needle felt structure has insufficient bonding strength, and the multi-layer structure is easy to delaminate and disperse. The existing solution is simple sewing, but the bonding strength is still insufficient in the sewing method, and the It is easy to remove and replace a certain layer of material, so there is an urgent need for a PTFE-coated needle-punched felt with a multi-layer structure and high bonding strength in the market. [0003] The patent publicatio...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/32B32B7/08B32B27/12B32B33/00
CPCB32B5/26B32B7/08B32B27/12B32B33/00B32B2262/0238
Inventor 周宏成薛峰
Owner ZHEJIANG LUCKING ENVIRONMENTAL PROTECTION CO LTD
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