The burst pressure test stand for plastic components from Poppe + Potthoff Maschinenbau enables a high-precision and fast component test.
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Precise Testing of Plastic Components

Nordhausen (Germany), August 18, 2017

Precise Testing of Plastic Components

At the Automotive Testing Expo, Poppe + Potthoff Maschinenbau will present new burst pressure test stands for up to 400 bar with precise pressure control in a tolerance of +/- 0.1 bar and test equipment capability over the entire pressure range .

At the ATE China (19-21 September, Stand 6010, Hall 3, SWEECC, Shanghai) and at the ATE North America (October 24-26, 2017, Stand 11002, The Suburban Collection Showplace, Novi, MI), Poppe + Potthoff Maschinenbau will be presenting its latest test equipment for plastic components to 40,000 visitors from 35 nations. A new fine pressure control method allows to test components such as AdBlue tanks, brake fluid containers, hose lines or suction modules very precisely.

To verify the quality of media-carrying components, the parts are pressurized until they burst. The process is precisely measured and documented in order to optimally design the components for specific applications – the burst pressure is determined in part by 100,000 measured values per second. At Poppe + Potthoff Maschinenbau, the pressure build-up is achieved with a technology that is faster, more precise and less maintenance than conventional systems.

Patented fine-tuning process

Two test circuits with different operating modes are available for the burst pressure test. A specially developed, wear-free fine-control process with a tolerance of +/- 0.1 bar allows a very precise, freely programmable and repeatable pressure increase up to 50 bar. In the other test circuit, a pneumatically driven pressure transducer operates, with which a pressure of up to 400 bar can be generated. The test medium is normal water or test oil.

The test stand is an autarchic-working system. It has been specially developed for the plastics industry. The test specimens can be adapted in an uncomplicated manner via quick-couplings. A quick-change device is also possible so that the test piece can be installed manually outside of the test chamber. Optionally, a hand scanner allows the identification of the components to individually assign the bursting pressures to each component.

Flexible software structure

The programmable logic controller (PLC) has a serial interface for data exchange. The test requirements are entered via the touch panel, and LabVIEW applications from National Instruments are used for data collection and visualization. The open software structure makes it possible to integrate additional sensors and data during the test, for example to measure the material stretching. This allows all customer-specific parameters to be displayed.