Stainless Steel Casting Effect Principle
Stainless Steel Casting The surface cleaning of stainless steel castings is divided into two main categories, dry and wet, dry cleaning method is mainly shot blasting treatment, wet cleaning method mainly a bit of hydraulic cleaning sand, water clear sand, and so on, the following by Weifang Chiron Pump Co., Stainless Steel Casting Ltd. for everyone to introduce dry and wet the two big stainless steel castings surface Clear method for reference.
The dry cleaning method is to clean the surface of stainless steel castings with the main friction treatment method, and the blasting treatment is simply to compress the air as the driving force, let the projectile at a certain speed spray to the surface of stainless steel castings, remove the surface of sand and iron oxide skin, etc., but this method of friction cleaning due to inefficient, clean uneven, poor results, Stainless Steel Casting has been used by the public, has been almost eliminated.
The wet-type reason method is mainly electro-hydraulic hammer effect principle, the high-voltage pulse generator through the special electrode placed in the water for interphase discharge, resulting in large hydraulic impact. Because the surface adhesion of stainless steel castings is different from the elastic modulus and vibration frequency of the castings, the purpose of sand cleaning is achieved. For the complex shape of stainless steel castings such as deep hole, blind hole, inner cavity has a more effective cleaning effect. Is the most widely used one of the stainless steel castings, including a series of surface cleaning methods.
Stainless Steel In accordance with the structure can be divided into austenitic stainless steel, martensitic stainless steel, ferritic stainless steel. Austenitic stainless steel is the largest use of a stainless steel, austenitic structure of stainless steel from the theory is not magnetic, Stainless Steel Casting but after cold processing austenitic stainless steel will produce magnetism, according to some domestic and foreign research shows that the reason for the magnetic of austenitic stainless steel castings is that when the stainless steel is heated to austenite transition temperature above and maintained for a period of time, the stainless steel will turn into austenite, but then the stainless steel castings need to be cooled and formed, during the rapid cooling process, When austenite cools to martensitic transition temperatures, the tissue begins to turn into martensite, which stops changing until the temperature drops below the temperature of the martensite structure. In the production of stainless steel castings, the stability of austenitic stainless steel, processing deformation, processing methods and so on may affect its transformation to martensitic stainless steel
These are two common stainless steel casting surface cleaning methods, here need to remind you that these two methods of cleaning is not only for stainless steel castings, the vast majority of metal casting products in the process after the molding process need to clean up the surface, is the metal casting products in an indispensable process, for the surface of the casting, the most important role is to remove the surface of the metal casting sand and iron oxide skin, such as a series of impurities, making stainless steel castings surface has become stainless steel metallic luster, To achieve the product implementation standards, so the surface cleaning of stainless steel castings is very important, everyone in the cleaning of stainless steel castings surface must be in accordance with the correct method. In order to ensure the quality of stainless steel castings.