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Intense development, research partnerships with university organizations and market-leading car manufacturers and the most modern technologies make us one for Europe's centers of competence for non-grain-oriented electrical steel. Industry-specific material and processing expertise, specific tests and simulations guarantee our excellent product quality.
Customer requests can be processed and individual isovac® grades produced within a short period of time thanks to steelwork simulations. This shortens development times.
For high quality requirements: Once the electrical steel strip is produced, we perform measurements in our accredited testing lab as required by the applicable electrical steel standards, e.g. DIN EN 10106, DIN EN 10303 or DIN EN 10341. We can perform tests to customer specifications upon request.
Step 1: Automated sampling with initial testing in the integrated CATS measuring system
Our continuous annealing testing station (CATS) is used for the automatic testing of samples directly following production. The coating layer thickness and insulation resistance (Franklin Test ASTM 717) are both measured. Further evaluations of the coating include crosscut testing and coating hardening assessments. Residual curvature is also examined. With more than 100,000 samples tested annually, our CATS measuring system contributes considerably to a high level of quality.
Step 2: Additional tests in the new testing center
The magnetic and mechanical properties of the electrical steel are subsequently determined in our new testing center. Preparation of the test specimens and the testing itself are fully automated for the most part. For example, magnetic property measurement is robot-controlled on two Epstein frames pursuant to DIN EN 60404-2. Depending on the respective requirements of the steel grade, a frequency range between 0 and 2500 Hz is possible. Mechanical properties are determined by means of a tensile test, and other important parameters such as the stacking factor, bending coefficient and hardness are assessed. Initial testing of the adhesive suitability of self-bonding varnish coatings is performed using a tensile shear test based on EN 1465 with sample support.
