Al2O3-SiO2-SiC-based jet material for foundry ladle
A technology of al2o3-sio2-sic and spraying material, which is applied in the field of Al2O3-SiO2-SiC refractory materials, can solve the problems of unreasonable micro-powder combination and reduce the corrosion resistance of materials, and achieve good thermal shock stability, high strength, The effect of promoting sintering
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[0031] Table 4 and Table 5 have listed the composition ratio of each invention example and comparative example, because the injection material contains cement, can introduce CaO, and Fe 2 o 3 The presence of other impurities, therefore, Al 2 o 3 , SiO 2 The sum of SiC and SiC is less than 100%.
[0032] Table 6 and Table 7 are the performances of each inventive example and comparative example.
[0033] Proportioning 1 (wt %) of table 4 invention examples
[0034]
[0035] Proportioning 2 (wt %) of table 5 invention examples
[0036]
[0037] Performance 1 of table 6 invention examples
[0038]
[0039] Performance 2 of table 7 invention examples
[0040]
[0041] It can be seen from the above properties that although the present invention adopts ultra-low cement binding, the appropriate combination of the three micropowders makes the spray material have high medium and high temperature strength while having good pumpability. The flexural strength of A2, A3,...
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