Jun 13, 2021
· Use intermediate frequency furnace for smelting to ensure high-quality molten steel;
· Use a refining furnace for molten steel refining;
· Use high-speed centrifugal casting to form;
· Effective separation of hollow and heterogeneous defect particles to provide steel shot density;
· Use secondary quenching treatment;
· Use tempering treatment to further refine the internal organization;
· It has been finely screened and the products meet the US SAE-J444 standard;
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