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All publications for the rubric Technical cleanliness

The experiments were conducted in a multi-bath tank system with 500 and 1,000 kHz ultrasound systems. Included were also the oscillation systems present in the setup with 40, 80, and 120 kHz.

The laser acoustic microphone is positioned above the water surface for the experiments. The measurements are conducted without direct contact with the medium and without movement.

The display shows the frequency spectrum of a 120 kHz oscillation system (orange) as well as the background noise of the measurement system (blue) with a laser acoustic microphone.

For the recording of the ultrasound signals of the 500 kHz oscillation system, the microphone was moved horizontally by 160 mm between measurements. The distance to the bath surface was 200 mm. The nearly overlapping curves (blue and orange) illustrate that the horizontal position of the laser acoustic microphone is not significant for the measurement.

The frequency spectra of a 1,000 kHz oscillation system are shown here for power levels of 20, 40, 60, 80, and 100%. The difference in power is primarily noticeable in the frequency range smaller than the excitation frequency.
Image source: Ecoclean GmbH

09.08.2024
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Technical cleanliness

Innovative APM solution from Ecoclean ensures cleaning effectiveness of megasound

Monitor the frequency and power of high-frequency ultrasound without contact

Frequency and power monitoring is an important quality assurance tool for ultrasonic cleaning applications in the 250 to 2,000 kHz range. Ecoclean has proven in test series that laser acoustic microphones can also reliably detect sound waves in the high-frequency range up to two megahertz. Based on…

The process design and definition of the optimal process parameters are carried out in the company's own cleanroom test facility. The preparation of the process media—carbon dioxide and compressed air—ensures air quality that meets the standards required, for example, in semiconductor manufacturing. (Photo credit: acp systems)

The compact, stainless steel JetCell cleaning cell with rotating nozzles was developed for automated cleaning applications and is capable of cleaning large areas in a short time. It can be easily integrated into an interlinked manufacturing environment or operated as a stand-alone device. (Photo credit: acp systems)

With the dry quattroClean snow jet technology, particulate cleanliness in accordance with ORK 1 can be consistently achieved. For film-like residues, the cleaning results are comparable to those obtained with other fine cleaning methods. (Image source: acp systems)

Effective, dry, and cleanroom-compatible cleaning solutions such as the quattroClean snow jet technology are essential to reliably meet the sometimes enormously increased requirements for technical cleanliness in electronics manufacturing or to clean already assembled components. (Photo credit: acp systems)

15.01.2024
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Cleaning | procedures, devices, agents, media (Wipers, Swaps,...)

quattroClean snow jet technology - scalable, inline-capable and cleanroom-compatible

Dry cleaning process for optimum cleaning results in electronics production

Whether energy, mobility or industry - electronic components and systems play a key role in the transformation towards climate neutrality. Due to higher demands on power density and reliability as well as new solutions, the requirements for technical cleanliness during the production of these compon…

The dry electropolishing technology is also ideal for finishing lifestyle products, like this tamper. ©Rösler

In contrast to conventional electropolishing, the DryLyte process removes material only from the peaks of surface roughness. The material removal is therefore relatively low, and the component geometry remains intact. / In contrast to traditional electropolishing systems, the DryLyte dry electropolishing process removes only the roughness peaks from the workpiece surface. Therefore, the material removal rate is very low. This ensures that the geometrical integrity of the workpieces is not affected. © Rösler

With dry electropolishing, perfect high-gloss surfaces can be produced reproducibly and resource-efficiently in short process times. / The dry electropolishing technology enables the reproducible and resource-saving generation of perfect high-gloss surfaces in short process times. ©GPA Innova

19.08.2023
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Technical cleanliness

Dry electropolishing – more sustainability in the field of surface finishing

Consistent and resource-saving high gloss finishes in perfect quality

The field of surface finishing is characterized by demands for higher quality with, at the same time, an increasing need for process consistency, traceability and resource efficiency. Frequently, this requires new finishing methods. With the DryLyte system Rösler Oberflächentechnik offers an inn…

The award of the FiT2clan Award, endowed with 10,000 euros, on the third day of the fair at the FiT exhibition stand is certainly one of the highlights of this year's parts2clean.
Image source: FiT

At the heart of the equally attractive and informative FiT program at parts2clean are knowledge transfer, information, and innovation for stable, sustainable, and cost-efficient cleaning processes.

06.08.2023
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Technical cleanliness

Professional Association for Industrial Parts Cleaning at parts2clean 2023

Knowledge, innovations, and support for technical cleanliness

Industrial component cleaning is a cross-sectional topic that no manufacturing company can avoid. It influences product quality and costs. For sustainable and efficient fulfillment of defined requirements for technical cleanliness, the Professional Association for Industrial Part Cleaning e. V. (FiT…

Tests for in-vitro cytotoxicity. © Fraunhofer IPA / Photo: Rainer Bez

Determination of scratch resistance using a linear displacement device (Crockmeter). © Fraunhofer IPA/Photo: Rainer Bez

08.03.2023
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Ultrapure media

Accredited quality management system expanded at Fraunhofer IPA

The Departments of Coating Systems and Paint Technology and Pure and Micro Production at the Fraunhofer IPA have received new accreditation certificates from the German Accreditation Body. Other specialized areas are thus accredited according to DIN EN ISO/IEC 17025 for testing research, industrial…

The CNp Technology: A Game-Changer in High Purity Processes: Last year, LPW obtained the European patents for the CNp process (Cyclic Nucleation), which has been in use and internally developed for years, following international rights. CNp acts directly on the boundary layer of a component, even in hard-to-reach internal contours (such as 3D implants or fine capillaries and lumens). Through targeted pressure fluctuations within the liquid-specific vapor pressure curve, the formation of vapor bubbles, the cleaning effects of gentle cavitation, and effective media exchange, contaminants are dissolved and, if necessary, residual contamination carried along is safely removed. With the ultrasound-CNp combination as a process enhancer, LPW also tackles the most challenging tasks in fields such as medical technology or high vacuum technology.

New CNp System: Small Powerhouse for Highest High Purity
New to the LPW portfolio is the space-saving standard chamber system PowerJet compact CNp. The two-stage system with integrated steam intermediate rinse occupies just under 4 m² and features, in addition to ultrasonic and Cyclic Nucleation (CNp) cleaning processes, the necessary drying for higher requirements. This can be implemented in the form of hot air as well as infrared vacuum drying. Furthermore, the new system is equipped with a treatment chamber embedded within the two pre-treatment tanks, suitable for goods up to a batch size of 600 x 400 x 300 mm and weights up to 150 kg. The sandwich construction supports cleaning and rinsing processes as well as drying through a higher temperature level. The recirculation system features integrated full-flow filtration with a filter area of over 4 m² and filter units up to 0.5 µm. Currently, the small powerhouse is available in two versions. More info: www.lpw-cleaning.de.

1. New products in medical technology, such as additively manufactured implants, pose new challenges for cleaning equipment manufacturers. Additionally, there are regulatory requirements (in Europe, the Medical Device Regulation) that must be addressed. (Photo: LPW)

2. Capillary structures, such as in fine channels and tubes, are subject to the highest cleanliness standards depending on their intended use. Due to their aspect ratio (the ratio of inner diameter to length), these components make the use of most known cleaning methods impossible and also challenge the rinsing and drying processes. Here is a 300 mm long glass capillary with an inner diameter of approximately 50 µm. (Photo: LPW)

3. In laser and high vacuum technology, cleaning is confronted with delicate and highly precise processed surfaces – such as mirrors, for example. (Photo: LPW)

4. The influences of drying on the degree of technical cleanliness are often underestimated. For example, energy-efficient recirculating air drying tends to concentrate the finest organic and inorganic contaminants, which can lead to recontamination of the components. Therefore, LPW uses environment-decoupled infrared systems. (Photo: LPW)

07.11.2022
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Technical cleanliness

Just cleaning was yesterday

High Purity requires technical cleanliness throughout the entire process chain

The entire manufacturing industry is undergoing technological change. And this worldwide. Changed mobility concepts, digitalization, and the production of completely new products are leading to higher demands on technical cleanliness. Cleaning alone is no longer sufficient. Highly clean environments…

With comprehensible process descriptions and a comparative matrix, the publication helps companies quickly and easily find the appropriate deburring methods for their specific application.
Image source: fairXperts

Higher demands on quality, precision, and sustainability require objective and understandable information for the selection of the deburring process. Image source: Kullen-Koti

10.08.2022
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Technical cleanliness

DeburringEXPO: Basic knowledge of deburring technology available

Current deburring technologies and precision surfaces in a practical overview

Companies in component manufacturing are increasingly confronted with higher or new requirements for surface quality. This often raises questions about the optimal process in manufacturing steps such as deburring. With the basic knowledge of deburring technology, fairXperts GmbH & Co. KG, organizer…

Figure 1: Direct measurement of the component. The machining marks from rolling are visible.

Figure 2: Impression at a predefined location to determine a decay curve (left); determined decay curve (right)

24.01.2022
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Devices

Inspection of technical cleanliness using a surface particle counter with oblique illumination technology

Conserving resources is a central theme of our society. In this context, the development of many parts and components is moving towards using less material and smaller structures. Consequently, the components become more sensitive, increasing the requirements for part cleanliness to ensure flawless…

The new PowerJet ULTRA from LPW offers safe processes as well as technical cleanliness at the highest level. (Photo: LPW)

LPW-PowerJet-ULTRA - Detailed view (Copyright: LPW Reinigungssysteme GmbH)

05.10.2021
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Trade fair

LPW presents the new PowerJet ULTRA at parts2clean 2021

Confident in the process, effective in the result

Technical cleanliness at the highest level for high purity tasks – the designers of LPW Cleaning Systems GmbH have developed a modular plant concept for fine and ultra-fine cleaning that meets the high requirements for process control and final results at all levels. At the parts2clean 2021 in Stu…

With the new test and service center, LPW supports its customers in terms of future-proof precision cleaning and challenging tasks. (Photo: LPW)

05.10.2021
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Company

Refined procedures and application engineering

LPW is reorienting itself

The structural change in industrial component cleaning is in full swing. Due to increasing globalization, digitalization, miniaturization, and automation, the demands are rising rapidly and relentlessly. This has far-reaching consequences for manufacturers of cleaning systems. Because technical clea…

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