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Pressure equalizing fabric for hydraulic hot pressing installation

A hot pressing equipment and pressure technology, applied in the field of pressure pads, to achieve the effect of shape stability

Inactive Publication Date: 2007-05-23
RHEINISCHE FILZTUCHFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] For modern coating technologies, as in single-layer short-stroke stamping, the mentioned pressure pads have drawbacks in their physical structure

Method used

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  • Pressure equalizing fabric for hydraulic hot pressing installation
  • Pressure equalizing fabric for hydraulic hot pressing installation
  • Pressure equalizing fabric for hydraulic hot pressing installation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] FIG. 1 shows a metal strand made from a single twisted brass fiber 2 , wherein the metal fiber 1 is processed both as the warp thread and the weft thread of the pressure-balancing fabric 6 .

[0042] In FIG. 2 , an elastomeric fiber 3 is shown, which is composed of a core fiber 4 and an elastomeric sheath 5 , eg, of a copolymer fluorosilicone / silicone rubber. The core fiber 4 consists of twisted copper fibers. In the above example, the elastomeric fibers 3 are processed as wefts of the pressure-balancing fabric 6 .

[0043] In the top view of the pressure balancing fabric 6 according to the invention shown in FIG. 3 , it can be seen that the elastomeric fibers 3 are raised upward in the form of the weft yarns of the pressure pad fabric, and the elastomeric fibres 3 are raised in the form of the weft and warp yarns of the pressure pad fabric of metal fibers 1. The elastomeric fibers 3 have a significantly larger diameter than the metal fibers 1 , wherein the diameter o...

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Abstract

The present invention relates to a pressure equalization fabric ( 6 ), particularly a pressing cushion, for use in hydraulic hot pressing facilities, comprising metal threads ( 1 ), both as warp threads and also as weft threads of the pressing cushion, and high-temperature-resistant elastomer threads ( 3 ), preferably having stabilizing core threads ( 4 ), which are situated alternating with the metal threads ( 1 ) either as warp threads or as weft threads. To ensure better diffusion of the vapor bubbles during the pressing procedure and thus achieve a transparent and closed melamine resin surface, the pressing cushion is characterized in that the thickness in the uncompressed state of the pressing cushion is determined by the elastomer threads ( 3 ) and thus the contact points pressing cushion with parts of the hot pressing facility at moderate pressure buildup are first formed by the elastomer threads ( 3 ), the elastomer threads being compressible in such a way that upon further pressure increase up to the total pressing pressure, further contact points ( 9 ) are formed by the metal threads ( 1 ).

Description

technical field [0001] The present invention relates to a pressure balancing fabric, in particular a pressure pad, for use in a hydraulic thermocompression device, comprising metal fibers, warp and weft threads of the pressure pad, and high temperature resistant elastomer fibers, preferably tapes There are reinforced core fibers, wherein the elastomeric fibers are arranged alternately with metal fibers either as warp or weft. Background technique [0002] Pressure pads are used in different types of pressure equipment, such as so-called single-layer short-stroke pressing for coating plywood, MDF or HDF panels with thermosetting plastic resins such as melamine resins, melamine resin-material blend resins or phenolic resins, and also For multi-layer high pressure and low pressure pressing for the manufacture of high pressure laminates, compact boards and plywood. Pressure pads can be used for basically all pressure equipment. Such pressure pads are usually constructed in the...

Claims

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Application Information

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IPC IPC(8): D03D15/02D03D1/00B30B15/06D03D15/56
CPCY10T442/3293B30B15/061Y10T442/3228Y10T442/3179Y10T442/322Y10T442/3065
Inventor 罗尔夫·埃斯佩
Owner RHEINISCHE FILZTUCHFAB
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