Industrial ultrasonic cleaners effortlessly remove oil stains from metal parts.

Metal components require surface treatment before production and assembly. Due to the aging of some machine tools, oil stains and oil films may form on the surface of metal parts, affecting the adhesion between the surface coating and the base metal, which significantly impacts the quality of metal coatings. Even minor oil contamination can lead to poor coating adhesion, resulting in peeling, corrosion bubbles, and other defects. Moreover, oil can contaminate electrolytes, affecting the structure of the coating. During processing, storage, or polishing, metal products are inevitably exposed to oil pollution, in addition to natural films and general factory oil stains. Contaminants may also include heat treatment rust-proof oil, lubricating oil, oxide scale, quenching oil, stamping lubricants, and other impurities. Therefore, the contaminants that need to be removed before electroplating can be a complex mixture. If left untreated for an extended period, they can severely affect the quality of electroplating. To ensure the electroplating quality of parts and achieve strong coating adhesion, metal components must be cleaned before electroplating. Currently, many companies widely use industrial ultrasonic cleaners for degreasing, which proves highly effective, saving both time and effort.

There are two types of oil stains on metal surfaces: one is saponifiable oil, including vegetable and animal oils, which can react with alkali to form water-soluble soap; the other is non-saponifiable oil, such as mineral oil, which does not interact with alkali. Oil is insoluble in water but soluble in organic solvents, so solvent-based cleaners can be used for cleaning parts.
Oil cleaning should be determined based on the nature and extent of oil contamination on the metal surface. Methods for oil removal include organic solvent degreasing, electrochemical degreasing, and chemical degreasing. A commonly adopted solution involves using ultrasonic cleaning equipment combined with degreasers, which offers high degreasing efficiency.

As a commonly used cleaning device in industrial cleaning, ultrasonic cleaners help many enterprises address complex cleaning challenges, reduce labor costs, and have become the preferred choice for cleaning equipment in numerous industries.