Preparation method for compound ceramic grain enhancing layer on surface of low-alloy structural steel
A technology of surface composite and ceramic particles, applied in metal material coating process, coating and other directions, can solve the problems of hardness, wear resistance, high temperature resistance that are not as good as ceramic materials, brittleness limit application, etc. High hardness and good high temperature resistance
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Embodiment 1
[0020] 1) Polish the surface of the low-alloy structural steel plate until it reveals a silver-white metallic luster, remove the oxide film on the steel surface, and wipe and clean the surface of the steel plate with acetone;
[0021] 2) Fully mix metal Zr powder with a particle size of 74 μm, ferroboron powder, and SiC ceramic powder with a particle size of 61 μm in a mixer in a mass ratio of 1:0.88:0.22 to make a cermet mixed powder;
[0022] 3) Fully stir the binder, deionized water and the mixed metal-ceramic powder obtained in step 2) in a mortar with a mass ratio of 0.05:0.35:1 to make a mixed metal-ceramic powder paste;
[0023] 4) Apply the cermet mixed powder paste prepared in step 3) evenly with a brush on the surface of the steel plate polished and wiped in step 1), with a coating thickness of 1.0-1.2 mm, and place it at room temperature for 4 hours, dried, and then put into a 150°C drying oven to dry for 12 hours to obtain a steel plate with cermet mixed powder;
...
Embodiment 2
[0031] 1) Polish the surface of the low-alloy structural steel plate until it reveals a silver-white metallic luster, remove the oxide film on the steel surface, and wipe and clean the surface of the steel plate with acetone;
[0032] 2) Fully mix metal Zr powder and ferroboron powder with a particle size of 74 μm and SiC ceramic powder with a particle size of 61 μm in a mixer at a mass ratio of 1:0.88:0.44 to make a cermet mixed powder;
[0033] 3) Fully stir the binder, deionized water and the mixed metal-ceramic powder obtained in step 2) in a mortar with a mass ratio of 0.05:0.35:1 to make a mixed metal-ceramic powder paste;
[0034] 4) Apply the cermet mixed powder paste prepared in step 3) evenly with a brush on the surface of the steel plate polished and wiped in step 1), with a coating thickness of 1.0-1.2 mm, and place it at room temperature for 5 hours, dried, and then put into a 150°C drying oven to dry for 11 hours to obtain a steel plate with cermet mixed powder; ...
Embodiment 3
[0042] 1) Polish the surface of the low-alloy structural steel plate until it reveals a silver-white metallic luster, remove the oxide film on the steel surface, and wipe and clean the surface of the steel plate with acetone;
[0043] 2) Fully mix metal Zr powder and ferroboron powder with a particle size of 74 μm and SiC ceramic powder with a particle size of 61 μm in a mixer at a mass ratio of 1:0.88:0.66 to make a cermet mixed powder;
[0044] 3) Fully stir the binder, deionized water and the mixed metal-ceramic powder obtained in step 2) in a mortar with a mass ratio of 0.05:0.35:1 to make a mixed metal-ceramic powder paste;
[0045] 4) Apply the cermet mixed powder paste prepared in step 3) evenly with a brush on the surface of the steel plate polished and wiped in step 1), with a coating thickness of 1.0-1.2 mm, and place it at room temperature for 6 hours, dried, and then put into a 150°C drying oven to dry for 10 hours to obtain a steel plate with pre-prepared metal-ce...
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Abstract
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