How to clean the sewing machine parts

Before assembling, the remaining chips, grinding paint, rust and other debris on the parts must be cleaned up. For holes, grooves and other parts that are easy to retain foreign matter, they must be cleaned carefully.
When removing the chips on the parts after finishing, the processed surface and the electroplating and baking paint layer should be mainly protected.
For parts that are not complex in general geometry, they can be cleaned with a brush in a cleaning solution. Parts that do not require high precision and will not be damaged when rolling are cleaned by a strip washer. In mass production, they can be cleaned with a rotating disk spray.
Important parts such as bobbin case and shuttle bed can be cleaned by ultrasonic cleaning machine.
The ultrasonic cleaning machine uses the high frequency ultrasonic cleaning generated by it to generate vibrations, thereby generating a large number of air pockets. These pockets will gradually increase and suddenly close, emitting micro microwaves from the center outwards, and the pressure can reach hundreds of atmospheres, thus making the sticky The oily dirt attached to the parts falls, because the strong vibration of the air bubble strengthens the emulsification and compatibilization of the cleaning liquid on the dirt oil, and improves the cleaning effect. For small holes and deep holes on some parts.
Blind holes, grooves, etc. are not easy to be cleaned by general cleaning methods, and ultrasonic cleaning can achieve good cleaning results.