Centrifugal metal roll ring and manufacturing process thereof
A manufacturing process and technology of centrifugal rollers, applied in the field of metal centrifugal roller rings and their manufacturing processes, can solve the problems of energy saving and high efficiency, low production efficiency and high production cost, and achieve improved thermal crack resistance, improved surface quality, The effect of surface quality improvement
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[0025] See figure 1 and figure 2 , a metal centrifugal roller ring in this embodiment, comprising inner layer 1 and outer layer 2 of different materials; the chemical composition of inner layer 1 is: C: 0.80-1.20%; Si: 1.00-2.00%; Mn: 0.50- 1.50%; P≤0.03%; Ni: 0.20~1.00%; Mo≤0.20%; 1.50%; Mn: 0.80~1.50%; P≤0.10%; S≤0.03%; Cr: 12.00~18.00%; Ni≥0.50%; Mo: 0.20~1.50%, the rest is Fe. The matrix structure of the outer layer 2 is: tempered sorbite + martensite + fine grained carbide; the fine grained carbide is Cr 7 C 3 and M 2 c. The surface hardness of the metal centrifugal roller ring is 65-75HSD, and the uniformity of the plane and side hardness of the outer layer 2 of the roller ring is ≤1HSD; The tensile strength of the inner layer ≥ 550MPa, the tensile strength of the inner layer ≥ 700MPa. See figure 1 and figure 2 A ring of assembly threaded holes 11 are evenly distributed on both ends of the inner layer 1; annular step grooves 12 are arranged on both ends of the...
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