How Do Stainless Steel Casting Clean Up?

How do stainless steel Casting clean up?
First Xiaobian to introduce you on the classification of stainless steel, from the source began to understand. Stainless steel according to 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 stainless steel structure is theoretically no magnetic, but after cold processing of austenitic stainless steel will produce magnetic, according to some studies at home and abroad that lead to Austenitic stainless steel Casting are due to the fact that the stainless steel is converted to austenite when the stainless steel is heated to above the austenite transition temperature for a period of time during processing, but then the stainless steel Casting need to be cooled and cooled, In the process, when the austenite is cooled to the martensitic transition temperature, its organization begins to change into martensite, and the transition will not stop until the temperature falls below the martensitic transition temperature. In the production of stainless steel Casting, the stability of austenitic stainless steel, processing deformation, processing methods are likely to affect its conversion to martensitic stainless steel
Stainless steel Casting surface cleaning is divided into dry and wet two categories, dry cleaning method is mainly shot blasting, wet cleaning method is mainly a little solution of hydraulic sand, water sand and so on.
Dry clean-up method is to blaze the main treatment of the friction surface of the stainless steel Casting surface cleaning, shot blasting treatment is simply to use compressed air as the driving force, so that the projectile to a certain speed jet to the surface of stainless steel Casting, remove the surface Of the sand and iron oxide skin, but this friction cleaning method due to low efficiency, clean up uneven, poor results and other reasons, has been used by the factory, has been almost eliminated. Order Hotline: 0510-83630008
Wet principle is mainly electro-hydraulic hammer effect principle, the high-voltage pulse generator placed in the water through the special electrode for phase discharge, resulting in a large hydraulic shock. As the stainless steel Casting surface adhesion and the Casting itself, the elastic modulus and vibration frequency is different, so as to achieve the purpose of clear sand. For the shape of the complex stainless steel Casting such as deep hole, blind hole, the cavity has a more effective cleaning effect. Is currently the most widely used in a series of stainless steel Casting Casting surface cleaning methods.
These are two common methods of cleaning the surface of stainless steel Casting, where you need to remind everyone that the two clean-up method is not only for the stainless steel Casting, the vast majority of metal Casting products in the process after forming the need for the surface To clean up, metal Casting products is an indispensable process for the Casting surface cleaning, the most important role is in addition to metal Casting surface sand and iron oxide and a series of impurities, making the surface of stainless steel Casting become stainless steel Gloss, to achieve the implementation of the product standards, so the surface cleaning stainless steel is very important, we clean the surface of the stainless steel Casting must be in accordance with the correct method.
Stainless steel is made of columnar crystal structure skeleton, refractory materials, additives and water filled in the middle, so that after drying and drying the surface there are different sizes of pores. The penetration of molten metal into the surface of the stainless steel surface is the main cause of the surface roughness. Metal liquid infiltration depth: the crystal diameter, the average diameter of the surface pores, the surface radius of the alloy liquid and so on. Therefore, in order to obtain a smooth surface of stainless steel Casting need to reduce the crystal and filler particle diameter, reduce the surface pore diameter; or the use of additives can be enriched in the surface, the larger pores filled to reduce the penetration of metal。