Page 8 of catalogue Seals of Reinz-Dichtungs-GmbH

In addition, through Dana Sealing Products and its four development centers in Neu-Ulm, North America, Japan, and Brazil, we have worldwide access to 27 engine test stands and associated laboratories for analysis and static/dynamic pre-testing. All activities are coordinated by the Competence Center R & D in Neu-Ulm, to ensure your testing benefits from the most advanced technology »Made in Europe«.

Laboratory tests (excerpt) ¬ RPM 1) 510-3D: The setting behaviour (creep resistance) of a gasket is determined as a function of surface pressure and temperature. The resulting (derivable) loss of bolt load is decisive for the sealing behaviour. ¬ RPM 1) 511-S: The distribution of surface pressure on the surrounding Components is determined by means of a computer-controlled Hydraulic test stand. With metal gaskets, for example, a test program with repeated loading/unloading cycles is used to determine the bead characteristics, which are then compared with the calculated FEA values from the simulation.

¬ RPM 1) 528: By means of resonance pulsers and simulators, various operating conditions (temperature, pressure, dynamics) are simulated, and conclusions are drawn about the gasket's durability. ¬ RPM 1) 535: Determines a gasket's sealing potential, depending on the component's surface roughness, its flatness, and the bolt force. Seal tightness is tested with nitrogen or with liquid media such as engine oil or antifreeze. ¬ RPM 1) 550: By means of a pressuresensitive film (Fuji film), the distribution of surface pressure over the gasket is determined, scanned, and evaluated electronically.

Test set-up to determine the sealing potential according to RPM 1) 535.

Of course, we conduct any additional laboratory tests requested by the customer. These range from investigating the media resistance of the material used, through porosity, roughness, and evenness tests of the sealed components, up to special examinations of residual particles, e.g. if gaskets for dust-sensitive components such as high-pressure Injection pumps are to be packaged under cleanroom conditions.

From icy cold to burning hot – thermal shock test causes engine and gaskets to age several years within hours.

Documentation For detailed communication: All test results are summarized and explained in a comprehensive test report. This simplifies and speeds up subsequent fine-tuning with your engine designers and builders.

RPM 1) = REINZ-Prüf-Methode (REINZ Test Method): Numerous laboratory test procedures are described in corresponding RPMs, and represent testing methods that are widely accepted in the industry.

15

Hot creep [%]

10

5

Fiber composite gasket

Beaded metal gasket with elastomer coating

300 250 200 150 100 50 0 10

Material 1 Material 2
75 30
2 /mm ] essure [N Surface pr

ture mpera Test te

50

[°C]

Determination of surface pressure distribution with RPM 1) 550.

Hot-creep behaviour of different elastomer-coated gaskets according to RPM 1) 510-3D.

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