Producing Zero-residue Cleaning Results
The final quality of the cleaning results is largely determined by the
quality of the rinsewater in use. If zero-residue cleaning results are
required, the system purchased will require 2 or more rinse tanks designed with
Reverse Cascade Overflow, and the system must be connected to a deionized water
supply, or reverse osmosis water supply.
Deionized water is water that has been purified to remove all dissolved
solids. When water evaporates from the surface of parts, ONLY the water
evaporates, and any dissolved solids such as calcium will dry on the surface of
the product, thereby producing unacceptable cleaning results. However,
deionized water has NO dissolved solids. Therefore, when it dries, no
residues are left behind.
Residues can also be deposited onto parts if the cleaning process fails to
adequately remove the contaminants from the parts. In these instances, it
will not matter how pure the water is. The parts will not be adequately
cleaned. Oscillation Systems, or CROSSFIRE Multiple Frequency Ultrasonic
Systems can greatly improve the cleaning results for most applications, and is
highly-recommended for applications requiring zero-residue cleaning results.
One difficulty encountered with the use of deionized water is drag-out of
detergents from the cleaning fluid into the rinse water. Detergents in the
FINAL rinse bath will produce residues on parts after cleaning. Keeping
the water quality very high in the final rinse tank is required for zero-residue
cleaning results, and is one of the reasons why Zenith offers Automated Rinse
Water Quality Maintenance Systems which automatically maintain the rinse water
quality to guarantee zero-residue cleaning results.
For more information regarding how to select the appropriate number of rinse
tanks for a given application, see the
Rinse Importance web pages in the
Technical Info drop-down menu above.
Zero-residue Cleaning Results:
- Require the Use of Purified Deionized or Reverse Osmosis
- Requires the Use of at Least 2 Rinse Tanks with Reverse
- The Quality of Water in the Final Rinse Tank is Most
- Require that Detergent Drag-out is Minimized to Prevent
- Can be Easily Obtained with Optional Automatic Water
Quality Maintenance Systems.
For additional information,
85 Oak St.
Norwood, NJ 07648-0412