Necessary rigorous controls
With well-proven control stations, measuring instruments, and a laboratory we are able to offer purity analyses for our components. From experience, we know that there is a huge need for purity analyses, control and precision in more sectors than just our own.
Purity measurement determines particulate content
Purity requirements in relation to components are increasing in order to minimise the risk of breakdowns, reduced efficiency or shortened useful lives. Consequently, particles can be devastating for our own activities as well as for the customer and end user. Purity is measured as part of a purity analysis to determine the particulate content of components (surface), oils, washing liquids or systems. Analyses are often carried out on a test series of between three and five samples. The components are washed in different ways – flushing, shaking or in an ultrasonic cleaner – depending on what is most suitable for collecting particles. The particles are then counted or undergo gravimetric analysis and simplified characterisation of particles using an optical microscope.
Zero-tolerance sorting machines
We have several machines whose only task is to analyse particles and remove anything that is not up to scratch based on the customer’s requirements specification. Laser and vision-based sorting machines are important for the business. One of them photographs the products, counts the pixels and removes any defective units. Another photographs each product and makes sure that it has the correct dimensions and is free from shavings. Here too, any products that do not comply with the threshold values are removed.
Margins of error on precision components are minimal with tolerances down to thousandths of a millimetre. This requires complex equipment for reliable purity analyses. In addition to vernier callipers, micrometres and dial gauges, we also use microscopes and gauges for roundness, surface roughness, contours and profiles. Our array of equipment also includes co-ordinate measuring machines, which measure contours and detect non-compliance with set tolerances. Mitutoyo Cosmos and Measure Link – data systems with SPS – are used to control and support the processes used.
Purity analysis – documenting for the future
The results of the purity analysis and measurement are then analysed. In the report, we present the approach, data on the particles content, ISO class, images of the largest particles and other particles of interest. If necessary, our analysts will comment on the purity analysis and recommend improvements.