DEECOM® technology involves superheated steam at ~500F with a pressure swing. All heat for the process is provided by the superheated steam and the contaminant is removed from the reaction vessel by mechanical actions of decompressions to ambient pressure. Examples of polymers removed in DEECOM® are polyester and polycarbonates. DEECOM® is also used to remove embedded particulate from filter media.
Carolina Filters uses VacuClean to clean parts of polymers, plastics, degraded polymers, carbon, and charred materials. It can be used with large or small parts with varying amounts of contaminant.
Fragile parts that could potentially be damaged, should spontaneous oxidation occur, are typically cleaned using Convection Ovens. This process will rid parts of contaminants like polymers, plastics, degraded polymers, extruder screws, and any other contaminant that requires controlled oxidation or burning.
CFI uses a eutectic mixture of potassium and sodium nitrate & nitrite salts to polish residual carboneous and various inorganic residuals trapped within the media matrix of filters and from parts. The molten salt process involves temperature swings to safely allow for entry of fragile parts into the salt bath before oxidation temperatures are reached. The molten salt bed provides a heat sink in the event of temperature spikes during the salt process.
Shattered Metal Machines:
Carolina Filters’ shattered metal process involves various equipment to accommodate the diverse requirements for cleaning & reclaiming the shattered metal from polymer encapsulated metal plugs.
- Specially designed Ovens are used to thermally remove polymer from polymer encapsulated metal plugs so that the shattered metal can be further separated from screens, seals and other debris
- After removing the polymer, CFI has developed a Washing System that removes ash, residuals, and debris from the loosened metal powder.
- Drying Systems are used to dry the washed metal to prepare the metal for further cleaning and grading.
- In some cases, Magnetic Separation Equipment is needed to remove non-magnetic debris from magnetic or slightly magnetic shattered metal grades.
- After cleaning, samples of the metal powder are tested on equipment that provides a Sieve Analysis, Apparent Density Analysis, and Carbon Content Analysis.
- Cleaned shattered metal is graded by using Sieving Equipment that is setup with various screening equipment to produce the finished product that complies with the user’s sieve analysis.
- Cleaned and sieved metal is packaged into containers and labelled with grade, sieve analysis, date, lot number and other information as required by the user.
CFI uses a clean room to process, inspect, and/or package filters and parts that have critical requirements that can be affected by water and air quality. Examples include
- Inspection and packaging of filters and parts used in oxygen service. Such parts may become contaminated in an open or warehouse environment.
- Cleaning and packaging or parts used in pharmaceutical or food processes that must be processed in a controlled environment