Double-fluid composite iron-based bimetal casting method
A bimetallic and iron-based technology, which is applied in casting molding equipment, metal processing equipment, casting molds, etc., can solve the problems of large amount of double-liquid composite fusion and high rejection rate of bimetallic composite, and achieves the expansion of the range of process parameters and facilitates industrialization High-production, easy-to-control effects
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[0014] Example: 500×500×50mm composite wear plate
[0015] The bimetal composite wear-resistant plate is composed of low-carbon cast steel and high-chromium cast iron, and its composition is shown in the following table. The finished product requires high chromium cast iron layer thickness 25-35mm, hardness requirement ≥55HRC, low carbon cast steel thickness 15-25mm, and impact toughness not less than 50J.
[0016]
[0017] Process analysis: Comparing the composition of low-carbon cast steel and high-chromium cast iron in the table above, the composition of Si, Mn, P, and S after fusion does not change much, mainly due to the changes of C, Ni and Cr. From the physical properties of the two, the thermal conductivity of low-carbon cast steel is higher than that of high-chromium cast iron, the melting point of low-carbon cast steel is about 1510℃, the melting point of high-chromium cast iron is about 1400-1450℃, and the melting point of low-carbon steel is higher than High chromium c...
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