Tundish coating with slag resistance
A tundish and coating technology, which is applied in the direction of casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve the problems of insufficient lining adhesion, poor slag erosion resistance, etc., achieve excellent slag load resistance, improve Resistance performance, reduce accumulation effect
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example 1
[0025] Get dolomite, magnesite and limestone and pulverize respectively and pass through a 50-mesh sieve to obtain dolomite powder, magnesite powder and limestone powder, and mix dolomite powder, magnesite powder and limestone in a mass ratio of 1:2:3 The powders are mixed and placed in a ball mill tank. After ball milling at 250r / min for 3 hours, the mixed ball mill powder is passed through a 150 mesh sieve. According to the mass ratio of 1:8, the mass fraction of 5% polyvinyl alcohol solution and the mixed ball mill powder are placed at high speed. In the mixer, stir and mix at 3500r / min to obtain a mixed slurry, place the mixed slurry in a mold with a diameter of 20cm and a thickness of 20mm for compression molding, and control the compaction pressure to 15MPa. After the pressing is completed, let it stand for cooling to room temperature to obtain a billet, preheat the billet in a muffle furnace at 120°C for 25 minutes, then raise the temperature to 1500°C at a rate of 10°C / ...
example 2
[0027] Get dolomite, magnesite and limestone and pulverize respectively and pass through a 50-mesh sieve to obtain dolomite powder, magnesite powder and limestone powder, and mix dolomite powder, magnesite powder and limestone in a mass ratio of 1:2:3 The powders are mixed and placed in a ball mill tank. After ball milling at 275r / min for 4 hours, the mixed ball mill powder is passed through a 150 mesh sieve. According to the mass ratio of 1:8, the mass fraction of 5% polyvinyl alcohol solution and the mixed ball mill powder are placed at high speed. In the mixer, stir and mix at 3750r / min to obtain a mixed slurry, place the mixed slurry in a mold with a diameter of 20cm and a thickness of 20mm for compression molding, and control the compaction pressure to 18MPa. After the pressing is completed, let it stand for cooling to room temperature to obtain a billet, preheat the billet in a muffle furnace at 125°C for 28 minutes, then raise the temperature to 1550°C at a rate of 10°C / ...
example 3
[0029]Get dolomite, magnesite and limestone and pulverize respectively and pass through a 50-mesh sieve to obtain dolomite powder, magnesite powder and limestone powder, and mix dolomite powder, magnesite powder and limestone in a mass ratio of 1:2:3 The powders are mixed and placed in a ball mill tank. After ball milling at 300r / min for 5 hours, pass through a 150 mesh sieve to obtain the mixed ball mill powder. According to the mass ratio of 1:8, put the mass fraction of 5% polyvinyl alcohol solution and the mixed ball mill powder at high speed. In the mixer, stir and mix at 4000r / min to obtain a mixed slurry, place the mixed slurry in a mold with a diameter of 20cm and a thickness of 20mm for compression molding, and control the compaction pressure to 20MPa. After the pressing is completed, let it stand for cooling to room temperature to obtain a billet, preheat the billet in a muffle furnace at 130°C for 30 minutes, then raise the temperature to 1600°C at a rate of 10°C / min...
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