Jewelry Cleaning
The Role of Ultrasonic Cleaners in Jewelry Industry.
What is Ultrasonic Cleaning?
Ultrasonic cleaning means to take advantage of the cavitation, acceleration and direct flow functions of ultrasonic high-frequency vibration in fluid to exert direct or indirect influences on fluid and dirt, making the dirty layers scattered, emulsified and stripped to achieve the cleaning purpose. The cavitation and direct flow functions were mostly applied in all of the ultrasonic cleaners. Ultrasonic cleaning belongs to physical cleaning, it is green cleaning, if certain detergent is added in clean-out fluid, then it is combined cleaning, possessing obvious cleaning effect. Ultrasonic cleaning is closely related to modern technological development and advanced manufacturing technology, which is one of the most extensively applied fields in power ultrasonic.
The Principle of Ultrasonic Cleaning
The physical mechanism of ultrasonic cleaning is primarily the ultrasonic cavitation, the cavitation effect is easily produced at group and fluid junction, therefore, considering the objects soaked in ultrasonic fluid, it possesses extremely unusual cleaning effect. Besides, since the ultrasonic has strong penetrating effect on solid, it can penetrate to the objects to be cleaned, the other surface, as well as the cavities, blind holes and narrow apertures of all of the soaked medium, peeling off the dirt attached on the surface of objects to be cleaned, achieving the perfect cleaning effect.
At the same time, the ultrasonic possesses the emulsification and neutralization effects, which can prevent the greasy dirt cleaned from attaching on the objects to be cleaned again efficiently. Therefore, such cavitation effect can clean all the internal surface of soaked objects in ultrasonic fluid (such as tube and box pieces). This important aspect of ultrasonic cleaning is superior to other cleaning means.
The Advantages of Ultrasonic Cleaners in Jewelry Cleaning
Diamond ring, necklace, bracelet, gold and silver will become dull after wearing for a long time, as if losing their brilliance, taking advantage of ultrasonic cleaning device to clean the jewelries, as for the final cleaning effect, the jewelries can acquire a completely new look, without losing weight and any damages on surface. Comparing with other traditional cleaning methods, ultrasonic is more suitable for cleaning the craft types of jewelries with relatively complex structure, for example, the craft type with rugged surface or the diamond ring with deep hole and narrow aperture and necklace, such objects can be cleaned well with ultrasonic cleaning.
Ultrasonic cleaning is reliable, safe, green, environment-friendly and useful. Taking advantage of the diffusion of ultrasonic in water, producing cavitation effect, acting on the jewelry surface and narrow apertures, removing all of harmful substances such as stain and hard dirt, making the jewelry acquire a completely new look. As for the sanitation and hygiene. Such cleaning method is physical cleaning, which won’t damage the jewelries, or even causing a large amount of gold loss in chemical solvent cleaning process, at present, it is the most safe and environment-friendly cleaning method.
The Jewelries that Can not be Cleaned with Ultrasonic Cleaners
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The jewelries with inlaid decorations can now be cleaned with ultrasonic cleaners, preventing the gems from falling off.
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Due to their low hardness, the organic gems, opal, turquoise, emerald and so on are fragile.
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Due to their low hardness, the cat’s eye, pearl, emerald, tanzanite, malachite, ruby, lapis lazuli and coral are easy to break.
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The pearl jewelry, jade and gems with serious cracks can not be cleaned with ultrasonic cleaners.
The Jewelries that Can be Cleaned with Ultrasonic Cleaners
- Gem: Primarily referring to colored gemstones, rubies, sapphires, tourmalines, emeralds, garnets and so on. Due to the different hardness of various gemstones, the ones with high hardness can be cleaned with ultrasonic cleaners. The ones with low hardness cannot be cleaned in this way, such as emeralds.
- Gold and silver: Primarily referring to pure gold, 18K gold, silver, platinum and so on. It is normal that the gold and silver jewelries will become dull after wearing for a long time or incorrect preservation. They can be cleaned with the professional jewelry ultrasonic cleaners, the metal jewelries that won’t be wear recently can be put in the closed pocket after cleaning. Preventing them from oxidation and blackening.
- Jade: Primarily referring to jade, hetian jade, chalcedony and so on. The method for maintaining jade is to wear it usually, the natural excretive grease of human body can preserve the jade, making it brighter, the jade jewelries can be cleaned with warm water, utilizing the soft brush to brush the jewelries light, don’t clean them in the ultrasonic cleaners, since the cracks are easy to break.
- Diamond: Primarily referring to ordinary white diamond, yellow diamond, pink diamond and so on. While cleaning the light-trimmed and untrimmed diamond jewelries, the diamond can be taken off, putting it in ultrasonic cleaners for cleaning. For the ordinary diamond fabricated in claw inlay method, it can be placed in the ultrasonic cleaners for cleaning directly.
