In the final phase of polishing with paste, the parts are soiled with grease everywhere, especially in the innermost sections which were most difficult to reach using traditional manual methods.

In preparation for subsequent treatments of electrodeposition, electroplating, PVD or vacuum metalisation, the greatest problem is ensuring the surfaces are completely degreased.

The effect of ultrasonic cleaning with water-based detergents literally causes the grease, which is hidden and esterified, to explode in the detergent solution.

Even abrasives, freed from the grease which held them like glue, are released from the surface of the piece and fall to the bottom of the tank.

SUPERIORITY OF WATER-BASED DETERGENTS COMPARED TO ORGANIC SOLVENTS

Specifically, when cleaning jewellery, cutlery, taps and fittings, the use of a water-based detergent is much more efficient and economical, and is preferable to degreasing with organic solvents.
In fact, solvents dilute the grease of the paste without eliminating it, and as long as the solvent is clean, the result may be acceptable. However, over time solvents become contaminated with grease and the result worsens.

To maintain an acceptable result, a solvent based cleaning system must perform a continuous closed distillation cycle which results in the significant problem of energy consumption.

But even more serious is the problem of environmental pollution.

Not to mention the problem of disposal.

Moreover, at the end of cleaning with a solvent, the surface of the treated part shows signs of the typical residues of inorganic particulate (alumina, corundum, etc.)
It is precisely because they are inorganic that they have not dissolved in the solvent and remain on the surface of the part, making it necessary to later remove the residue manually (polishing).

FOR YEARS, MORONI HAS ONLY MANUFACTURED SYSTEMS WHICH CLEAN WITH WATER-BASED DETERGENTS.

Cleaning flatware

Polishing pastes removed from parts with ultrasonic cleaning

Argenteria trattata con ultrasuoni

Cleaning jewellery

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