Surface World May 2018 Surface World May 2018 - Page 52

fluids, etc prior to parts being sent out for surface treatment. The solution to ensure this ultimate high quality was to monitor the part’s cleanliness during their cleaning process with the CleanoSpector which will quickly detect residual contamination on metal surfaces. The CleanoSpector is a practical, hand held measurement device used in a wide range of industries and applications throughout the world. Clean surfaces are essential for plating, coating, bonding and welding processes where oil & cooling lubricant films are a common source of contamination. The key to the CleanoSpector portable measuring instrument is that it measures filmic contamination precisely and presents the cleanliness level in the form of a number on the instruments screen. With its integrated target pointer and the ability to accurately set the correct working distance, measuring even the smallest parts or in tiny grooves is possible. For measuring on flat or slightly curved surfaces you can simply attach the setting spacer. It’s a great question! One level of cleanliness may be acceptable for a particular process yet unacceptable for another. What is needed is a simple to use instrument that will quickly measure surface cleanliness and present the answer in the form of a number. That is exactly what the unique ‘CleanoSpector’ surface cleanliness measurement instrument does. The level of cleanliness of metal parts can be easily measured to ensure that the parts meet the required quality standards. Dyne Testing were recently contacted by Rousant Sherwood Manufacturing Ltd (RSM), a family company that has been specialising in manufacturing very complex machined multi-axis components for over 40 years. RSM continually strive to provide a comprehensive quality and statistical control process to all their customers and recognise the importance of inspection. RSM wanted a quality control method for checking their parts were fully cleaned from their machining processes i.e. free of lubricants, cutting 50 The CleanoSpector detects residual organic contamination by measuring the fluorescence, which is excited by UV light from a light emitting diode. A photodiode in the device’s sensor head measures the intensity of the fluorescence. The intensity is measured in Relative Fluorescence Units (RFU) and the lower the RFU value, the cleaner the surface. Automotive crank shafts, pistons, cam shafts and con-rods after cleaning Pistons for hydraulic pumps before hardening – residual contamination has an influence on the steel quality in the hardening furnace Stainless steel pipes before coating (vehicle construction) Gear case parts before coating or bonding Fluxing agent residues on gold bond pads on ceramic substrates Medical instruments and implants before delivering to the user Cleanliness of parts before plating, vacuum or powder coating Implementing the CleanoSpector into their quality process, Rousant Sherwood Manufacturing can check input cleanliness of their machined parts going into their cleaning system and check their output quality of the parts after the cleaning system, ensuring optimum cleanliness prior to surface treatment. Robin Salter, General Manager at RSM worked with the team at Dyne Testing, “from the initial sample testing I was immediately impressed with the results the CleanoSpector gave us, we had a range of cleaned, uncleaned & extra contaminated samples tested by Dyne. The results were very clear in detecting the different levels of contamination which was exactly what we had hoped for. The CleanoSpector is now being used as part of our quality control and is giving us complete confidence in our cleaning process”.