A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a silicon carbide-based aluminized alloy cooking plate. The preparation method comprises the following steps: (1) fusing composite molten aluminum into a liquid state; (2) vacuumizing, and infiltrating the composite molten aluminum on a silicon carbide base material, wherein the vacuum degree is 1.5-1.8MPa below zero; heating at the temperature of 500-600 DEG C, and maintaining for 8-10 minutes, wherein the thickness ratio of the silicon carbide base material to the infiltrated composite molten aluminum is (15-20):1; (3) rapidly relieving the pressure after infiltrating the composite molten aluminum, introducing nitrogen or helium, and pressurizing the silicon carbide base material infiltrated with the composite molten aluminum to 1.5-1.8MPa, wherein the pressurization time is 8-10 minutes; and (4) rapidly cooling after completely pressurizing, and naturally cooling when the temperature is lower than 500 DEG C, thereby obtaining the plate. The prepared plate has the advantages of low density, high strength, high hardness, wear resistance, corrosion resistance and long service life.
The invention discloses a silicon carbide-based aluminized alloy cooking plate. The preparation method comprises the following steps: (1) fusing composite molten aluminum into a liquid state; (2) vacuumizing, and infiltrating the composite molten aluminum on a silicon carbide base material, wherein the vacuum degree is 1.5-1.8MPa below zero; heating at the temperature of 500-600 DEG C, and maintaining for 8-10 minutes, wherein the thickness ratio of the silicon carbide base material to the infiltrated composite molten aluminum is (15-20):1; (3) rapidly relieving the pressure after infiltrating the composite molten aluminum, introducing nitrogen or helium, and pressurizing the silicon carbide base material infiltrated with the composite molten aluminum to 1.5-1.8MPa, wherein the pressurization time is 8-10 minutes; and (4) rapidly cooling after completely pressurizing, and naturally cooling when the temperature is lower than 500 DEG C, thereby obtaining the plate. The prepared plate has the advantages of low density, high strength, high hardness, wear resistance, corrosion resistance and long service life.
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