Continuous casting tundish working layer coating
A continuous casting tundish and working layer technology, which is applied in the field of iron and steel metallurgy technology and refractory materials for iron and steel metallurgy, can solve the problems of reducing paint smearability, slag resistance, and reducing coating refractoriness, so as to reduce apparent porosity, Save coating cost, improve compressive strength and flexural strength
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Embodiment 1
[0027] The main indicators of the Magic Magnesium, boron mud, paper fiber, aluminum powder, and sodium trimer in the middle of the sintering are as follows: the main indicators of raw materials are as follows:
[0028] Magnestes: The mass of MGO in magnesium sand is 94%, the particle size is ≤1mm, and the weight of each particle size range is: 25%of 0.074-1.0 mm, less than 75%of 0.074 mm;
[0029] Boron Pud: The composition of boron mud (mass percentage) indicator is: MGO 35%, Fe 2 O 3 4.0%; the particle size requirements of boron mud are: particle size ≤1mm, and the weight of each particle size range is: 15%of 0.088-1.0 mm, and 85%of less than 0.088 mm;
[0030] Organic fiber: Organic fibers are paper fiber, fiber length ≤1mm;
[0031] Aluminum powder: al> 99%, the particle size is less than 0.074mm;
[0032] Sodium triple gone phosphate: NA 5 P 3 O 10 > 96%, the particle size is less than 0.5mm;
[0033] Follow the following composition ingredients:
[0034] Magnesium sand 90%, ...
Embodiment 2
[0037] The main indicators of the Magic Magnesium, boron mud, paper fiber, aluminum powder, and sodium trimer in the middle of the sintering are as follows: the main indicators of raw materials are as follows:
[0038] Magnestes: The mass of MGO in magnesium sand is 94%, the particle size is ≤1mm, and the weight of each particle size range is: 35%of 0.074-1.0 mm, less than 65%of less than 0.074 mm;
[0039] Boron Pud: The composition of boron mud (mass percentage) indicator is: MGO 40%, Fe 2 O 3 1.0%; the particle size requirements of boron mud are: particle size ≤1mm, and the weight of each particle size range is: 25%of 0.088-1.0 mm, and 75%of less than 0.088 mm;
[0040] Organic fiber: organic fibers are wooden fibers, fiber length ≤1mm;
[0041] Aluminum powder: al> 99%, the particle size is less than 0.074mm;
[0042] Sodium triple gone phosphate: NA 5 P 3 O 10 > 96%, the particle size is less than 0.5mm;
[0043] Follow the following composition ingredients:
[0044] 80%of ma...
Embodiment 3
[0047] The main indicators of the Magic Magnesium, boron mud, paper fiber, aluminum powder, and sodium trimer in the middle of the sintering are as follows: the main indicators of raw materials are as follows:
[0048] Magnestes: The mass of MGO in magnesium sand is 94%, the particle size is ≤1mm, and the weight of each particle size range is: 30%of 0.074-1.0 mm, less than 70%of 0.074 mm;
[0049] Boron Pud: The composition of boron mud (mass percentage) indicator is: MGO 40%, Fe 2 O 3 2.0%; the granularity requirements of boron mud are: particle size ≤1mm, and the weight of each particle size range is: 20%of 0.088-1.0 mm, and 80%of less than 0.088 mm;
[0050] Organic fiber: organic fibers are mixtures of wood fiber and polyethylene fiber, and the fiber length ≤1mm;
[0051] Aluminum powder: al> 99%, the particle size is less than 0.074mm;
[0052] Sodium triple gone phosphate: NA 5 P 3 O 10 > 96%, the particle size is less than 0.5mm;
[0053] Follow the following composition in...
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