The quality of hot-rolled steel balls is guaranteed, so that the hot-rolled steel balls have precise size, round geometry, high hardness and good mechanical properties, and have excellent quality of wear resistance, no deformation and no cracking. Its characteristics are as follows: 1. High overall hardness: the surface hardness can reach 55-65HRC, the volume hardness can reach 50-62HRC, and the hardness gradient is evenly distributed; 2. High impact toughness: the impact toughness is greater than 12J/cm2; 3. Low breakage rate: the anti-peeling and anti-breakage performance is more than 10 times that of general cast and forged steel balls, the number of falling ball impacts is more than 20,000 times, and the actual breakage rate does not exceed 1%, which is close to no breakage.1Hot-rolled steel balls have many advantages of steel. They are rolled into shape by special equipment and then heat-treated to become high-quality ball-milled steel balls; 1.2. High production efficiency and large production capacity. The production of rolled balls is highly mechanized and automated. There is no manual operation in the production process, so there are few people and little interference from human factors; 1.3. Low energy consumption, no pollution, low labor intensity and low production cost; 1.4. Stable internal quality, dense metallographic structure, fine grains, not easy to deform, good wear resistance and the crushing rate is less than 0.5%; 1.5. Good forming, small roundness deviation and good appearance quality; 1.6. High specific gravity, greater than 7.85g/cm3. 1.7. The hardness of the steel ball is high, which can reach 62~65HRC, and the hardness inside and outside is uniform, with a small hardness difference; low wear rate and long service life, which is about twice that of the existing ordinary cast steel balls and forged steel balls, and the price is comparable.
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