Customer requirements for cleanliness

The earliest history of cleanliness is used in the aerospace industry. In the early 1960s, the American Automotive Engineers (SAE) and the American Association of Aeronautics and Astronautics (SAE) began to use uniform cleanliness standards, which were fully applied to the aviation and automotive industries. The cleanliness of electromechanical instrument products is a very important quality indicator. Cleanliness indicates the amount of dirt remaining on the surface of a part or product after cleaning. Generally speaking, the amount of dirt includes measurement indicators such as type, shape, size, quantity, and weight; the specific indicators used depend on the degree of influence of different dirt on product quality and the requirements of cleanliness control accuracy. Ultrasonic cleaning equipment can greatly improve the surface cleanliness control of machine parts during production and before packaging


Products are assembled from parts through equipment processing, so cleanliness is divided into parts cleanliness and product cleanliness. The cleanliness of the product is directly related to the cleanliness of the parts, and it is also closely related to the production process, workshop environment, production equipment and personnel.

Cleanliness refers to the degree of contamination of parts, assemblies and specific parts of the whole machine by impurities. The quality, size and quantity of the impurity particles collected from the specified feature parts by the specified method are expressed. The "prescribed part" mentioned here refers to the characteristic part that endangers the reliability of the product. The "impurities" mentioned here include all the impurities that remain in the product design, manufacture, transportation, use and maintenance process, mixed in from the outside world, and generated by the system.

The cleanliness standard is to answer the question of "what kind of clean is enough clean" and set a dividing line between qualified and unqualified. It is used as a standard for receiving goods from suppliers, and it can also be used as a tool for cleanliness testing in the internal production process. Shanghai Tianshi Electromechanical Equipment Co., Ltd. is a professional manufacturer of ultrasonic cleaning equipment with independent R&D, design, production and after-sales.

The setting of cleanliness standards is directly related to the cleaning process, because different levels of cleaning equipment and methods will inevitably lead to different levels of cleanliness results. Cleanliness standards are not only closely related to the test method, but also related to factors such as sample type, quantity, temperature, cleaning medium, concentration and other test parameters and corporate standards. The ultrasonic cleaning equipment independently developed and produced by Shanghai Tianshi Electromechanical Equipment Co., Ltd. can greatly improve the surface cleanliness of machine parts. Welcome to call for consultation, and our company will serve you wholeheartedly.

Post time: May-11-2021