Parts Cleaning And Decontamination Services

Persys supplies parts cleaning, decontamination and maintenance services.

We clean, restore, and decontaminate used parts and equipment to support sustainable operations and reduce procurement expenses.

The decontamination process removes metal, organic depositions, and other contaminates such as hazardous materials.

After decontamination, parts are repackaged in clean rooms and delivered to the customer, ready to use.

Methods

CO2 cleaning

CO2 cleaning is a non-abrasive, residue-free, and environmentally friendly cleaning method, generally used in final cleaning or for fragile surfaces that are sensitive to water. In this process, liquid or gaseous carbon dioxide is nucleated into small, dry ice particles. When the dry ice comes into contact with a surface, it removes particles of all sizes by momentum transfer or using a transient solvent or a freeze-fracture mechanism. Nucleation also creates a high-velocity carrier gas stream that blows contaminants away.

Wet and dry bead blasting

In this technique, blasting beads are used to remove oxidation, residue, discoloration, and surface defects. It is more aggressive than other techniques and is optimal for contaminants that are embedded or entrapped in the surface. In the wet blasting process, media is mixed with water in a pressure vessel. Dry blasting uses different media, primarily alumina grids. The media beads do not damage the substrate and the bead mixture can be changed to meet the requirements of various surfaces.

Ultrasonic cleaning (water + solvents)

Ultrasonic cleaning is an ideal solution for complex parts with threads, rough surfaces, or blind interior spots that are inaccessible with other methods. The technique uses high-frequency sound waves to agitate an aqueous, semi-aqueous, or solvent-based cleaning solution and dislodge particles, removing contaminants at a microscopic level. Higher sound frequencies are used to remove finer particles.

Chemical treatment

In this technique, acid, alkaline, solvents, detergents, and other chemical materials are used to remove depositions such as metal, ceramics, and organic matter from almost any substrate without harming the substrate itself.

High pressure and hot water rinse

High pressure (up to 3000 PSI) and hot water rinses alternate between cold and hot water to change the deposition structure and remove both rough and thin depositions from a part surface without harming the part.

Disassembly / Assembly

New and used parts and tools often need to be disassembled before decontamination and cleaning and then reassembled and packaged for use. The processes must be conducted carefully, in the right conditions, to prevent harm to the part and deliver it ready for use without the need for any additional treatment.