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A Comprehensive Portfolio Of Industrial Cleaning Processes And Systems With ECOCLEAN

A Comprehensive Portfolio Of Industrial Cleaning Processes And Systems With ECOCLEAN

Today, parts cleaning has become a quality critical manufacturing step in all industry sectors. It often takes great effort to meet particulate and film-type cleanliness specifications. At the same time cleaning is to be done at the lowest possible cost. These contradictory requirements imperatively call for processes and machines tailored to specific needs.

From machine and plant engineering, electrical and power engineering to connecting elements, components of the most diverse materials like metals, plastics, ceramic and composite materials are manufactured and processed using very different manufacturing technologies. Although the parts are manifold, they have one thing in common which is to ensure the quality of downstream processes such as machining, heat treatment, coating, bonding and assembly, to guarantee lasting functionality, they necessitate cleanliness levels in line with requirements.

In many areas, even higher requirements concerning particulate and film-type cleanliness must be met. And there are often added challenges such as high throughput rates and weights, a strongly varying range of parts to be cleaned, short delivery times and also small margins in some cases.

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Cleanliness For Optimal Diagnostics And Therapy

Cleanliness For Optimal Diagnostics And Therapy

X-ray tubes are the basis of a number of diagnostic and therapeutic procedures in medicine. Manufacturing precision and cleanliness of the individual parts are key factors for the functional reliability and longevity of these high-tech components. A leading manufacturer relies on equipment from Ecoclean and UCM for cleaning.

Shortly after the discovery of X-rays by Wilhelm Conrad Röntgen on November 8, 1895, the development and manufacture of X-ray tubes at Philips Medical Systems DMC GmbH began with Carl Heinrich Florenz Müller, a glassblower born in Thuringia. As early as March 1896, he made the first X-ray tube in his workshop in Hamburg. Three years later, the technology pioneer was granted the first patent for an X-ray tube with water-cooled anti-cathode. The breathtaking pace of tube development and the enormous success of X-ray technology spurred demand worldwide, turning the craftsman’s workshop more and more into a specialist factory for X-ray tubes. In 1927, Philips, the only shareholder at the time, took over the factory.

Innovation and High Manufacturing Precision

Ever since then, the company has been shaping X-ray technology with innovative solutions and continuous improvements. The products used in Philips Healthcare systems, as well as those sold under the Dunlee brand, contribute significantly to advances in diagnostic imaging, computer tomography and interventional radiology. 

“Besides modern manufacturing technologies, high precision and ongoing process optimisation, component cleanliness plays an important role in ensuring the functional reliability and longevity of our products,” says André Hatje, Senior Engineer for Process Development in the X-ray Tubes Division. Residual particle contamination specifications that have to be met when cleaning the various X-ray tube parts underline this: a maximum of two 5 µm particles and one 10 µm particle.

Removing Molybdenum Grinding Dust With a Standard System

The high cleanliness requirements were one criterion when the plant for cleaning spiral groove bearing components was replaced. The bearings, which form the heart of high-tech X-ray tubes, are made of molybdenum. After the groove structure has been applied by laser, a dry grinding step is performed. This is followed by cleaning, during which the grinding dust and any traces of smoke from the laser process still present in the grooves must be removed. To simplify process validation, among other things, a compact standard machining was needed for this cleaning process. Against this backdrop, the process developer approached several cleaning equipment manufacturers, including Ecoclean GmbH in Filderstadt. 

Equipped for Fine Cleaning

The machine for immersion and spraying processes is operated with the same acidic cleaning medium previously used at Philips and has a footprint of just 6.9 m2. It is fitted with three flood tanks for the washing step and two rinsing processes. Their flow-optimised, cylindrical design and upright position prevent dirt from accumulating in the tanks. In addition, each tank has a separate media circuit with full-flow filtration so that the cleaning and rinsing fluids are filtered during filling and emptying as well as in the bypass. The deionised water used for the final rinsing process is treated in the integrated Aquaclean system. 

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