Centrifugal high-carbon, high-boron and high-speed steel composite roller shell and fabrication method of combined roller of composite roller shell
A technology of centrifugal compounding and manufacturing method, applied in the direction of rolls, metal rolling, manufacturing tools, etc., can solve the problems of low energy consumption, difficult to control temperature drop, segregation of the interface between inner and outer layers, etc., to improve the service life and material utilization rate. Effect
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[0015] Example 1, the material composition of the outer layer of the centrifugal composite high carbon high boron high speed steel composite roller sleeve is C1.5, Si0.9, Mn0.8, P<0.03, S<0.03, Cr5.0, Ni0.75, Mo2. 0, W1.5, Nd0.5, V5.0, Ti1.5, B0.5, N0.12, the balance is Fe. The molten steel is melted, and after the composition in front of the furnace is qualified, the temperature of the molten steel is increased to 1620°C, aluminum and silicon calcium are added for deoxidation, and then out of the furnace. The material composition of the inner layer of the centrifugal composite high-carbon high-boron high-speed steel composite roller sleeve is C1.3, Si2.0, Mn0.6, Cr0.4, Ni0.4, Mo0.3, the balance is Fe, and the composition before the furnace is qualified. After that, the temperature of the molten steel is raised to 1590°C and waits for tapping. During the tapping process, calcium silicon, ferrosilicon and aluminum are added to the molten steel for deoxidation, deterioration and ...
Example Embodiment
[0019] Example 2, the composition of the outer layer of the centrifugal composite high-speed steel composite roller ring is C1.7, Si0.8, Mn0.6, P<0.03, S<0.03, Cr8.2, Ni1.0, Mo4.0, W0. 5. Nd1.3, V4.0, Ti1.1, B1.5, N0.15, the balance is Fe, the temperature of the molten steel is raised to 1600℃, aluminum and silicon calcium are added for deoxidation, and then out of the furnace. The material composition of the inner layer of the centrifugal composite high-speed steel composite roll ring is C1.72, Si1.1, Mn0.72, Cr1.35, Ni0.9, Mo0.6, and the balance is Fe. After the composition of the furnace is qualified, the steel The temperature of the liquid rises to 1580°C and waits for tapping. During the tapping process, calcium silicon, ferrosilicon and aluminum are added to the molten steel for deoxidation, deterioration and inoculation. After the operation is completed, it waits for pouring.
[0020] Centrifugal composite casting high-speed steel composite roll ring, the outer layer casti...
Example Embodiment
[0023] Example 3, the material composition of the outer layer of the centrifugal composite high carbon high boron high speed steel composite roller sleeve is C2.1, Si1.2, Mn0.67, P<0.03, S<0.03, Cr10, Ni0.5, Mo3.7, W2.0, Nd2.0, V6.0, Ti0.5, B2.0, N0.05, the balance is Fe. Raise the temperature of molten steel to 1610°C, add aluminum and silicon calcium for deoxidation, and then out of the furnace. The material composition of the inner layer of the centrifugal composite high-carbon high-boron high-speed steel composite roller sleeve is C2.0, Si1.5, Mn0.8, Cr1.5, Ni1.5, Mo0.2, the balance is Fe, and the composition before the furnace is qualified. Afterwards, the temperature of the molten steel is raised to 1600°C to wait for tapping. During the tapping process, calcium silicon, ferrosilicon and aluminum are added to the molten steel for deoxidation, deterioration and inoculation. After the operation is completed, it will wait for pouring.
[0024] Centrifugal composite casting of...
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