Preparation and Application of Thermal Spraying Ceramic Sealing Glaze at Coke Oven Charging Port
A technology of ceramic sealing and coal filling port, which is applied in the field of refractory materials, can solve problems such as time-consuming and labor-intensive cracks, and achieve the effect of firm bonding, high resistance to chemical erosion, and smooth surface
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Embodiment 1
[0021] 1) Preparation of borate composite solvent: formula range: 39 parts of borax, 20 parts of zinc oxide, 19 parts of quartz powder, 8 parts of potash, and 4.5 parts of slaked talc; mix the ingredients according to the formula for 16 minutes and then melt at a high temperature of 1000 ℃. Then water quenched to obtain a composite borate saturated solvent;
[0022] 2) Preparation of thermal spray glaze: formula range: 35 parts of compound borate saturated solvent prepared in step 1), 25 parts of kaolin, 25 parts of quartz powder, 15 parts of zircon powder, 3.5 parts of calcite, 3.5 parts of talc powder, three parts 1.1 parts of sodium polyphosphate; after mixing the ingredients evenly according to the proportion, add 45% of the total mass of the glaze raw materials, and grind for 2 hours to control the particle size to be less than 10μm 80%, and more than 50μm 2% to obtain the glaze;
[0023] 3) The pressure spraying method of spraying machine is used, and the pressure is con...
Embodiment 2
[0027] 1) Preparation of borate composite solvent: formula range: 37 parts of borax, 22 parts of zinc oxide, 17 parts of quartz powder, 8 parts of potash, 4 parts of slaked talc; mix the ingredients according to the formula for 18 minutes and then melt at a high temperature of 1020 ℃. Then water quenched to obtain a composite borate saturated solvent;
[0028] 2) Preparation of thermal spray glaze: formula range: 34 parts of compound borate saturated solvent, 27 parts of kaolin, 24 parts of quartz powder, 16 parts of zircon powder, 3 parts of calcite, 4 parts of talc powder, 3 parts of calcite prepared in step 1) 1 part of sodium polyphosphate; after mixing the ingredients according to the proportion, add 55% of the total mass of the glaze raw materials, and grind for 3.5 hours to control the particle size to be less than 10μm 80%, and more than 50μm 2% to get the glaze;
[0029] 3) The pressure spraying method of spraying machine is used, and the pressure is controlled at 0.4...
Embodiment 3
[0033] 1) Preparation of borate composite solvent: formula range: 42 parts of borax, 18 parts of zinc oxide, 21 parts of quartz powder, 7 parts of potash, and 5 parts of slaked talc; after mixing the ingredients according to the formula for 17 minutes, they are melted at a high temperature of 970 ° C, and then Water quenching to obtain a composite borate saturated solvent;
[0034] 2) Preparation of thermal spray glaze: formula range: 35 parts of compound borate saturated solvent prepared in step 1), 24 parts of kaolin, 27 parts of quartz powder, 14 parts of zircon powder, 4 parts of calcite, 3 parts of talcum powder, three parts 1.2 parts of sodium polyphosphate; after mixing the ingredients according to the proportion, add 45% water of the total mass of the glaze raw materials, and grind for 2.5 hours to control the particle size to be less than 10μm 80%, and more than 50μm 2% to obtain the glaze;
[0035] 3) The pressure spraying method of spraying machine is used, and the ...
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