0.5mm cast steel grit process

Jun 05, 2021

Smelting: use intermediate frequency furnace for smelting, so that high-quality molten steel can be obtained and the quality of steel shot can be greatly improved;

Refining: Use a refining furnace to refine the molten steel to improve the purity of the molten steel, so that the steel shot can obtain better materials;

Granulation: high-speed centrifugal casting forming, effectively controlling the forming quality and reducing physical defects;

Type selection: effective separation of hollow, heterogeneous and other defective particles to increase the density of steel shots;

Quenching: Perform secondary quenching treatment to refine the grains, make the internal metallographic structure of the product more compact, and enhance the impact toughness;

Tempering: further refine the internal structure and meet different hardness requirements, precise high temperature and time control, make the organization state and hardness uniformity reach the best;

Crushing: The unique crushing process makes the steel grit particles have better fullness and angularity, and minimizes the internal cracks of the steel grit particles;

Fine sieve: Precise particle size control makes the product meet the US SAE-J444 standard.


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