Groz-beckert Kg

Solidian Gmbh

Thomas Bischoff

Marcus Hinzen

Georgios Toskas

Melike Afsar

A bending method and a bending device, wherein a composite bar comprising a bundle of reinforcing fibres embedded in a polymer matrix is bent at a bending point. To make it bendable, the composite bar is heated locally at the bending point using an ultrasonic device with a sonotrode. After the bending point has been heated, an infeeding movement between the composite bar and the sonotrode is used to deform a region of the composite bar at the bending point to create a deformed portion of which the outer dimensions are different from the outer dimensions of the bar portions of the composite bar adjoining the bending point. The two bar portions are then moved or angled away in relation to one another, and so the composite bar is curved at the bending point. Once the desired bending has been achieved, the composite bar is cured at the bending point.

Bending method for bending a composite bar

A concrete component has a concrete matrix () and at least one non-metal reinforcing element (), which can be shaped and at least one reinforcing part (). The at least one reinforcing part () has a plurality of reinforcing threads () or reinforcing yarn arranged in a plastic matrix of a plastic (K). The plastic (K) is designed to be reversibly cross-linked. The cross-links can be released by heating the plastic (K) and reestablished by cooling the plastic back down. Thus, it is possible to produce and store a reinforcing element in completely hardened form as a standard element. In one application, the produced reinforcing element can be reshaped into the desired shape by releasing the cross-links in one or more locations, reshaping the reinforcing element, and then hardening the reinforcing element again by reestablishing the cross-links.

Concrete component having a reinforcing element, method for producing same, method for bending a reinforcing bar of a reinforcing element, and bending device

A textile part is configured for producing a composite-material element () or a composite-material body (). The textile part () has a reinforcing system () including reinforcing warp threads () and reinforcing weft threads (), and a binding system () with binding warp threads () and binding weft threads (). The reinforcing system () has at least one first portion (), into which the reinforcing threads () are interwoven with one another directly for binding to facilitate withstanding high mechanical. The reinforcing system () also has at least one second portion (), in which the reinforcing threads () form binding-free crossover locations () preferably laid on one another in a drawn-out state to constitute a laid structure surrounded by the binding threads (). The laid structure of the reinforcing system (), ensures particularly good draping and deformation capability at this location of the composite material.

Textile part, composite material element with textile part, and production method for the same

A fabric () for use in composite materials having a reinforcing system () made of reinforcing warp threads () and reinforcing weft threads (), which are placed on top of one other in two different reinforcing layers (), (). A binding system () of binding warp threads () and binding weft threads () is formed from a binding yarn () with a lower yarn count than the reinforcing yarn (). The reinforcing system () is enclosed between the binding warp threads () on the one side and the binding weft threads () on the other side, and thus, held in place at binding points (). At each binding point (), a binding warp thread () is guided and held between a stationary warp thread () and a regular warp thread () of a warp thread pair () of binding warp threads (). Between two adjacent binding points of a warp thread pair (), the stationary warp thread () and the regular warp thread () have intersecting points ().

Growing community of inventors

Bisingen, Germany

Thomas Bischoff