DE1510817A1 - Process for the production of plastically stretchable, high-strength wires or threads and products from them - Google Patents

Description

Dr. Ing. ERNSTMAIER

patent attorney

MUNICH 22

WIDENMAYERSTR. 4. TELEPHONE 222530

A 6162 2h, February 1962

Dr. EM / Si

P. OBERDORPER, metal cloth factory, Heldenheim / Brenz

Process for the production of plastically extensible, high-strength Wires or threads and products made from them

The invention relates to a method for Manufacture of plastically stretchable, high-strength wires and threads, as well as products from them. Wires and threads with such Properties are used, among other things, in the metal cloth and sieve weaving are needed and are available for the most commonly processed wires made of copper, nickel and theirs Alloys such as bronze, tombac. On the other hand, wires and threads with too little plastic elongation would open up The looms commonly used in screen weaving can only be processed with difficulty. In contrast to the metal wires, which can be connected by welding or soldering, the stretched plastic wires have the Naohteil that they hardly can still be welded or glued and therefore

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Spaikos5eS4ramb.ro Bonkhaul Paul KapfT, Slungarl Poiljdiedii Stuttgart 73291 Mündien 153841 Iel »erammadr.ii«: Paientl.nio

so far no satisfactory solution for the production of z. B. endless paper machine or other through Seam-connected sheets of plastic wire mesh found * - that could be.

The aim of the invention is therefore to produce a wire or thread material made of plastic, which at the same time plastically stretchable and high strength, but also weldable, »glued or castable, d. H. is suitable for seam formation. This object is achieved according to the invention in that the wires or threads are made of a composite material, in which one partner is a plastic that can be brought into a flowable state, while the other is a composite partner a fiber insert is such that in the composite state in which the plastic soaks the fiber insert and enveloped, the required strength properties occur without the weldable, adhesive or castable The ability of the plastic wires to be affected by reoking were. For this purpose, according to the invention, the fiber insert is made from staple fiber and this is just the case firmly spun so that the filaments can slide against each other when pulled without tearing. While the wacky The fiber core should therefore only have so much inherent strength that it is known to itself, possibly through suitable ones Devices strain-relieved, withstands the bonding process, 1st

• It is not the task of spinning "to give the insert tensile strength for the purpose of its later use. Rather, according to the invention, the plastic which soaks the insert and envelops it should instead the twisting and twisting take over the bond between the elementary threads and thus the desired properties of the wire or thread material arise only through the cooperation of the composite partners.

As particularly suitable for the purpose of the invention glass threads were found, e.g. B. a thickness of the order of 10. The length of the filaments and the degree of their planning, d. H. the tensile strength of the insert depend essentially on the type, in particular Flowability and toughness of the plastic and the type and manner of its application to the fiber core. Meanwhile, depending on the purpose, natural and other synthetic fibers can also be used.

Since woven or knitted fabrics made from wires or threads according to the invention have the property being able to be sewn by welding, gluing or potting, the invention enables the production e.g. endless paper machine sieves or other compound ones Sheets of woven or knitted plastic.

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Claims (4)

Claim 1. Procedure xua Manufacture of plastlsoh stretchable high-strength wires or threads made of a composite material, at dta “In Partner” In plastic, the in-flowable State can be brought to where the others Verbundpartner »a Paserclnlage, durhtrnken and UBuilil 1 en can »characterized« dal dl · Faaereinlage consists of staple fiber and is only just as tightly rer- ■ pinned). because the elementaries together be able to slide off without breaking yourself. 2> »Method according to claim 1, characterized by gekem * seleh ~ net, since the plastic swell * «yergiel- odtr gluable 1st. 3. The method according to claim 1 and 2 «thereby gekenngelehnet« that woven or realizable threads are produced. 4. The method according to claims 1 to 5, characterized thereby, that the fiber insert consists of glass thread. 5 · Use of woven or knitted fabrics depending on the The method of claims 1 to 4 produced ca Fldca for by Swell *, glued or glued seam, such as B. endless paper machine sieves, filter filters, Conveyor belts or the like 909887/1 282