The metallographic structure of steel shot will affect its lifespan. The secret to making steel shot more durable is SS1.4

Description :

　　1、 Steel shot application industry: suitable for cleaning various castings and forgings in manufacturing industries such as casting, machinery, automobiles, aircraft, and containers, rust removal and painting of steel plates, surface strengthening treatment of mechanical parts and metal parts, especially suitable for equipment use with high-speed, strong, and large shot blasting machines.

　　2、 The production process of Anlandi steel shot: using scrap steel as the main raw material, it undergoes processes such as electric furnace refining, centrifugal forming, rust prevention treatment, heat treatment, selection and grading screening, and is produced under strict quality control. Heat treatment is a key process in the production of steel balls. The company adopts a special secondary quenching and medium temperature tempering process to completely eliminate the original coarse structure in the cast steel balls, ensuring that the steel balls have high strength, high toughness, and high wear resistance. According to customer verification, its service life is 5-6 times that of white iron pellets, and it can increase productivity by 28.6%.

　　3、 Anlan cast steel shot can significantly improve the life of the shot blasting machine's dividing wheel, directional sleeve, and blades, and can increase the blade life by nearly ten times compared to hand white iron shot, resulting in a significant improvement in the smoothness of the working surface.

　　4、 Main technical conditions of Anlandi: 1. Chemical composition: C: 0.85-1.20%; Mn：0.6～1.20％Si:0.4～1.0％； S、P< 0.05% 2. Hardness: The hardness of the cast steel shot after re quenching should not be lower than HR60, and the hardness after tempering should be 42-52HRC (if the hardness of the steel shot is too high, it will greatly increase the breakage rate of the steel shot); If the hardness of the steel shot is too low, it will reduce production efficiency. 3. Metallographic structure: The final metallographic structure should be uniform tempered martensite, with carbides evenly distributed in fine particles, and network carbides not exceeding grade three. 4. Density: The density of cast steel pellets is greater than 7.25 grams per cubic centimeter. 5. Roundness: The cast steel shot should be spherical or approximately spherical, long strip shaped (exceeding one-third of the diameter), and the composite particles bonded to each other (the diameter of the bonding particles should not be greater than one-third of the bonded diameter) should be less than 15%. 6. Cracks: Cracks and shot particles wider than the radius should not exceed 15%, and each inspection should not be less than 20 particles. 7. Hollow rate of steel shot (hollow shell rate of steel shot): (1) porosity should be less than 10% (2) shrinkage rate should be less than 10% (shrinkage area of 40%). 5、 Particle size specification and application range 2.0mm-3.0mm, used for sand removal, surface cleaning, and strengthening of large and medium-sized castings and forgings. 2.0mm -1.4mm is suitable for small and medium-sized castings and forgings, surface cleaning of cast iron parts, cleaning of heat treatment process parts, rust removal and paint removal of steel plates, strengthening treatment of metal parts, etc. 1.2mm-0.6mm is suitable for cleaning and rust removal of relatively small castings and forgings, while 0.5mm-0.1mm is used for more precise workpieces or workpieces with high surface quality requirements; In addition, some thin-walled parts also use small-sized steel balls, which can effectively prevent deformation of the workpiece.

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• The metallographic structure of steel shot will affect its lifespan