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Critical Cleanliness for Deep-Drawn Parts

September 27, 2011 By Pat Curran

ITW Highland Manufacturing has employed in-house ultrasonic cleaning and testing capabilities to meet critical cleanliness requirements of their customers. These inline and cellular ultrasonic cleaning capabilities are capable of meeting of the most demanding specifications, including ISO/FDI 16232-10:2006 B/14; C/12; D/10; E/7; & F0. Such cleanliness is required for deep drawn parts that the company manufactures for medical applications and high tolerance direct fuel injection systems.

ITW-Highland-parts

Gravimetric, optical and qualitative analysis of particle contamination is performed after cleaning parts including fuel system high pressure pumps and medical components. The gravimetric analysis employs filters, a cleaning agent and precision analysis scales to at least 0.1 mg. Filters are weighed before & after filtration and compared to control filters to determine gravimetric particle mass. The cleaning process is so exacting that particle mass can be held at, or below, 0.1 mg/part.

Quantitative particle analysis is done with an EDX microprobe optical microscope to determine particle sizes down to 5 µm. As example, for a high pressure fuel injector pump, the entire contamination may only contain <20% quantities of silicon oxide or abrasive materials, with particle dimensions of <200µm. The mass of contaminant for an individual pump cannot exceed 0.25mg.

ITW Highland
www.itwhighland.com

::Design World::

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  • Home
  • Medical Device Business
    • Mergers & Acquisitions
    • Financial
    • Regulatory
  • Applications
    • Cardiovascular
    • Devices
    • Imaging
    • Implantables
    • Medical Equipment
    • Orthopedic
    • Surgical
  • Technologies
    • Contract Manufacturing
    • Components
    • Electronics
    • Extrusions
    • Materials
    • Motion Control
    • Prototyping
    • Pumps
    • Tubing
  • Med Tech Resources
    • DeviceTalks Tuesdays
    • Digital Editions
    • eBooks
    • Manufacturer Search
    • Medical Device Handbook
    • MedTech 100 Index
    • Podcasts
    • Print Subscription
    • The Big 100
    • Webinars / Digital Events
    • Whitepapers
    • Video
  • 2022 Leadership in MedTech
    • 2022 Leadership Voting!
    • 2021 Winners
    • 2020 Winners
  • Women in Medtech