Checking tightness without contact
The quality of sealing surfaces has a decisive influence on connections not being ‘leaky’ in the long run. If this is to be achieved, the surface’s geometric properties must be defined as precisely as possible so that the intended function – in other words, “leak-tightness” – is fulfilled. Leaks can occur particularly if the contact surfaces’ form deviation is outside defined tolerances. This risk can be prevented by using Polytec’s surface measurement systems. Using these products allows you to characterize tightness not only in the lab, but also during production. Thanks to the contactless measuring method, both the form and consistency of the sealing surfaces to be inspected are maintained and the measurement results can be repeated at any time. The Polytec systems are easy to use and make for a fast analysis process.
Polytec Magazine
Surface metrology tailored to your QC needs
Confirm flatness, roughness and step height
What roughness and form parameters are decisive for you?
Where surface inspections need to comply with cycle times
Polytec surface measurement systems are “in their element” in all production operations where tight cycle times have to be complied with. This situation is a particularly frequent one in the automotive industry – for example where injection systems, Piezo common rail systems and compressors are used, and for motor development in general.
Areal topography measurement of piezo injector parts
Piezo injectors are key components for automotive engines. In this example two separate surfaces of a piezo injector are to be recorded as a 3D profile within a cycle time of approximately 5 sec: Injector valve surfaces need to be evaluated for smoothness, parallelism and separation. A reproducibility of approximately 100 nm as tolerance value is required. The two surfaces are acquired in a precisely separated manner to determine the parameters mentioned.
Related products
TopMap Micro.View
TopMap Micro.View® is an easy to use and compact optical profiler. Choose Micro.View® as the cost-effective quality control solution for surface analysis of precision-engineering, for inspecting roughness, microstructures and more surface details.
TopMap Micro.View+
TopMap Micro.View®+ is the next generation optical surface profiler in a modular design to reliably measure the most challenging analysis tasks regarding surface finish and microstructures with utmost precision. Focus Finder and Focus Tracker assist in keeping samples focused at all times, with fully motorized positioning units ready for automation. Find out more!
TopMap Pro.Surf
Optical measurement system for quick and large field-of-view surface characterization. The areal measurement of the TopMap Pro.Surf ensures to detect any geometrical and structural details when inspecting your workpiece surface. Super fast measurement for short cycle times and a large field-of-view are some highlights of the TopMap Pro.Surf.
Further applications
- Drivetrain
![Drivetrain components with different precision-mechanical parts]( "Drivetrain components with different precision-mechanical parts")
Drivetrain components with different precision-mechanical parts - Fuel injection systems
![Inspection of sealing surface on fuel injectors with 3D topography to comply with tolerances]( "Inspection of sealing surface on fuel injectors with 3D topography to comply with tolerances")
Inspection of sealing surface on fuel injectors with 3D topography to comply with tolerances - Shock absorbers
![Form deviation analysis in components of shock absorbers]( "Form deviation analysis in components of shock absorbers")
Form deviation analysis in components of shock absorbers - Tribology
![automotive parts tribology and wear]( "automotive parts tribology and wear")
automotive parts tribology and wear - Surface roughness
![Surface roughness masurement and measuring Ra, Rz roughness parameters]( "Surface roughness masurement and measuring Ra, Rz roughness parameters")
Surface roughness masurement and measuring Ra, Rz roughness parameters - Layer thickness
![Optical and areal step edge test showing a 75.2 nm thick coating]( "Optical and areal step edge test showing a 75.2 nm thick coating")
Optical and areal step edge test showing a 75.2 nm thick coating - Surface parameters
![Surface parameter characterizing the form, waviness and texture of a workpiece]( "Surface parameter characterizing the form, waviness and texture of a workpiece")
Surface parameter characterizing the form, waviness and texture of a workpiece
