How to clean stainless steel precision casting

The first is dry cleaning, which sprays the main friction surface of the stainless steel precision casting processing surface cleaning. The shot peening simply uses compressed air as the power to make the spray gun spray the surface of the stainless steel casting at a certain speed to remove the stainless steel casting surface. However, due to low efficiency, uneven cleaning and poor results, this friction cleaning method has been used in factories and has been basically eliminated.
The second is wet cleaning. The principle of precision stainless steel casting processing is mainly the principle of electro-hydraulic hammer effect. The high-voltage pulse generator is placed in water through a special electrode for phase discharge, which produces a larger hydraulic shock. Because the bonding force of the stainless steel casting surface is different from the elastic modulus and vibration frequency of the casting itself, the purpose of sand cleaning can be achieved. It has a good cleaning effect for stainless steel castings with complex shapes, deep holes, blind holes, and cavities in stainless steel casting. It is one of the most widely used surface cleaning methods for stainless steel castings.
Everyone knows that the production of stainless steel precision casting processing should not be magnetic, but some products are magnetic. Some stainless steel casting manufacturers believe that the material is the cause, but after the spectrum test, the material is not abnormal, and many people cannot find the stainless steel casting. Processing methods to solve this problem, after communicating with new manufacturers, can obtain a lot of information and related technical personnel, many people can not find the magnetic forming method of stainless steel casting processing, this is because precision stainless steel casting processing is cooling During the process, the internal structure of the forming process has changed. Part of the austenite becomes martensite during the forming process, while the bulk structure of the stainless steel casting process is magnetic.