Zwick updates plastics testing machine
A
Zwick Roell product story
Edited by the Engineeringtalk editorial team
May 18, 2009
Zwick has upgraded a testing machine at Rochling Engineering Plastics Group.
Rochling's products include semi-finished components (sheets, rods, profiles) and machine- finished components made from thermoplastics, fibre-reinforced plastics and laminated densified wood.
The test lab in Haren, Germany, had to extend its testing capacity and needed to upgrade an existing testing machine.
The objective was to perform tensile, compressive, flexural and cyclic tests at ambient and also in a temperature chamber for non-ambient testing.
Zwick's VideoXtens extensometer, based on video camera technology, was installed.
It was positioned outside the temperature chamber, and during the test, the deformation of the specimen could be monitored through a glass window.
As there is no need for a slot in the wall of the temperature chamber, the temperature gradient is negligible.
By using interchangeable camera lenses, the required measuring range of the extensometer could be easily configured.
As the testing machine to be upgraded was not a Zwick machine, it first had to be modernised.
The drive unit was upgraded using Zwick's Testcontrol digital control system, and the software was upgraded to Zwick's Testxpert II platform.
Mechanical adaptations were installed for the temperature chamber, VideoXtens extensometer and the specimen illumination.
The upgraded testing machine is in continuous operation, together with other Zwick testing machines in the laboratory.
The VideoXtens has proved to be precise, as well as simple and fast to operate, and now the upgraded testing machine has an identical user interface to the existing machines.
This saves on training and support costs for Rochling.
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