Brief introduction to the ultrasonic cleaning process for several common workpiece surface conditions:
1. Cleaning of polishing paste on the surface of polishing parts
Under normal circumstances, polishing paste is often blended with paraffin wax. Paraffin has a high molecular weight, a high melting point, and is solid at room temperature. It is a difficult material to clean. The traditional method is to use organic solvent cleaning or high-temperature alkaline water to boil. Ultrasonic cleaning can use water-based cleaning agent to thoroughly clean the surface of the workpiece in a few minutes under medium temperature conditions. The common process is: 1 soaking → 2 ultrasonic cleaning → 3 clear water (clean water) rinse.
2. Cold-rolled steel sheet with oil and a small amount of rust on the surface
The surface of the cold-rolled steel sheet generally has oil, dirt or a small amount of rust. It is easy to wash it. However, after cleaning by the general method, a very fine floating ash remains on the surface of the workpiece, which affects the subsequent processing quality. Sometimes it is necessary to use strong acid. Soak the way to remove this layer of floating ash. Ultrasonic cleaning and proper cleaning solution can quickly and thoroughly clean the surface of the workpiece and make the surface of the workpiece highly active, sometimes eliminating the need for acid leaching before plating.
3. Parts with oxide scale and yellow rust on the surface
The traditional method is to wash with hydrochloric acid or sulfuric acid. If ultrasonic comprehensive processing technology is adopted, the oil and rust on the surface of the workpiece can be removed at the same time in a few minutes, and the hydrogen embrittlement problem accompanying the strong acid cleaning can be avoided.
In summary, ultrasonic cleaning technology will have a wide application prospect in the electroplating process and other industries. Ultrasonic cleaning technology can make the quality and output of electroplating parts more improved than before, and can improve the production environment and achieve good economic and social benefits.
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