Testing machines for paper materials - Zwick - #39

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39 List of sources [1] Urs Ernst: Determination of the static coefficient of friction on corrugated board and liner paper Corrugating International, April 1999 Product illustrations Title page: FOGRA, München Page 3, Fig. 4: Paul Hartmann AG, Heidenheim Page 3, Fig. 2: Hengst Filterwerke, Münster Page 3, Fig. 3: Staatl. Molkerei Weihenstephan AG Page 29, Fig. 2: SCA Packaging Research Page 34, Fig. 1 Voith GmbH & Co KG, Heidenheim Reserved to technical modifications Automation Since quality control is not an end in itself, cost efficiency is very important in testing and evaluation. Automation can be a valuable tool to save costs and obtain reproducible results with fewer variations. Automated specimen feeding is available in“Clip“ type construction that is suitable for non-stable samples such as paper or fleece. When the corresponding specimen clamps are used, tests on carton or compounds can be automated as well. The testing system in Fig. 1 consists of a tensile testing machine and an automatic specimen feeding system (Handling System). The Handlng System has two controlled driving axes and a circulating carrier chain with up to 200 specimen positions. The positions can be made of metal clips or clamps and are optimised for various specimen forms. Fig. 1: Automatic testing machine: tests on sanitary products With the freely programmable, servo- controlled driving axes, the carrier chain can be prepared with the most varied specimen holders. The system is monitored by a control which is storage programmable. The test evaluation is performed by testXpert® II. The possibility of manual testing without retro-fitting is standard. Good-bad sorting, via tolerance inputs, and controlled removal of specimen remains are options.