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Corrosion
tests and environmental simulation 1. Salt Spray Test / DIN EN ISO 9227 NSS 2. Cyclic Corrosion Test / DIN EN ISO 11997-1 Cycle B (once VDA 621-415) 3. Condensation water atmosphere with constant humidity / DIN EN ISO 6270-2 CH 4. Condensation water atmosphere with alternating humidity and air temperature / DIN EN ISO 6270-2 AHT 5. Outdoor weathering, urban / industrial climate Munich / DIN EN ISO 927-3 6. Immersion testing, different temperatures Verification of adhesive joints 7. Preparation of adhesive test specimens with defined a) oiling, b) overlap and c) bonding gab 8. Baking / hardening of the adhesive in a laboratory circulation air oven (simulation of the E-coating process with an extra fast heating up rate) 9. Determination of the lab shear strength of overlap adhesive joints / DIN EN ISO1465 10. Evaluation of fracture patterns by a) adhesive fracture, b) cohesive fracture and c) corrosive infiltration 11. Lap shear test with 50 kN universal testing machine from ZwickRoell with symmetrical and asymmetrical clamping 12. Verification of “self piercing rivets” adhesive bonds 13. Peel tests according to customers specifications Test methods and equipment 14. Contamination-free sample preparation with a metal band saw (up to 1000 m / min) with automatic table feed 15. Ultrasonic cleaning in organic solvents 16. Cross-cut test for layer thicknesses from 1 to 250 µm / DIN EN ISO 2409 17. Measurement and documentation of a) circulating air and b) object temperature with Thermocouple T Type [<< PDF Ovencurve] 18. Gravimetric tests on 0.1 mg, e.g. loss of mass, defined oiling 19. Light microscopy a) stereo and b) metallurgical with digital camera 20. Layer thickness measurement using magneto inductive- and eddy current methods |
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