Differences and similarities between cast steel shot and steel shot

　　Steel shot is a commonly used material for metal workpiece treatment. The structure of steel shot is tight and the particle size is uniform. Using steel shot to treat the surface of metal workpiece can increase the surface pressure of metal workpiece and improve the fatigue resistance of the workpiece. . Cast steel shot is made of high-quality steel scrap, which is first melted, and then the molten steel is formed into small balls by high-pressure water jetting.

　　What cast steel shot and steel shot have in common:

　　Steel shot and steel grit have proper hardness and good resilience. Internal corners and workpieces with complex shapes can be cleaned evenly and quickly, shortening the time of surface treatment and improving work efficiency. It is a good surface treatment Material. Cast steel shot is used in different processes for products of different particle sizes and hardness, such as surface strengthening, etc.

　　The difference between cast steel shot and steel shot:

　　From the product structure of steel shots, the structural treatment and acceptance of the segmented surface before blast cleaning and the selection of abrasive types, steel grit, often fail to achieve satisfactory results. The structural treatment of the steel shot in the early stage is good, which helps to eradicate various defects at the welds and corners and reduce the internal stress of the coating, effectively prolonging the service life of the coating system. The type of steel shot abrasive has a great influence on the quality of the surface treatment of the steel plate, especially the salt content of the abrasive itself often determines the degree of salt residue on the surface of the steel plate after blast cleaning.

　　If heated pure drinking water is used to wash the surface of the steel plate before steel shot abrasive blast cleaning is very clean, as long as the salt content of the abrasive is slightly higher than that of the drilling rig, the residual salt on the surface after steel shot abrasive blast cleaning still does not meet the requirements index. If there is residual salt left under the material coating, the coating will absorb water and penetrate to form an electrolyte, which will cause corrosion, shorten the protective life of the coating, and even cause dangerous air bubbles. In order to keep the surface of the steel plate in a clean state, if necessary, the surface can be cleaned before the steel shot abrasive blasting treatment, and clean abrasives and blasting equipment silicon steel sheets should be used as much as possible. The steel surface can also be kept clean after steel shot abrasive blasting. In order to reduce the re-pollution of the cleaned steel surface by abrasives, the abrasives should be recyclable and recycled. Garnet (Garnet) is an ideal abrasive, which can reduce a large amount of abrasive processing workload without affecting the effect of blast cleaning, and will not cause other adverse effects due to incomplete removal of residual abrasive.

　　Most of the shipbuilding industry in our country uses steel shots and steel wires to cut off. In fact, it is best to use 50% angular steel grit in the shipbuilding industry, which is more suitable for roughness requirements.