Modified calcium alumino-titanate refractory raw material and preparation method thereof
A calcium aluminate titanate and refractory raw material technology, applied in the field of calcium aluminate titanate, can solve the problems of limited application range, low calcination temperature, high impurity content of high alumina refractory raw materials, etc., to achieve improved chemical stability, excellent chemical stability, The effect of small thermal conductivity
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Embodiment 1
[0024] A modified calcium aluminate titanate refractory raw material and a preparation method thereof. The preparation method described in this embodiment is:
[0025] First, keep the calcium aluminate frit at 1400-1430°C for 3-4 hours, cool in the furnace, crush, and grind to a particle size of ≤0.058mm to obtain calcium aluminate powder.
[0026] Then according to the mass ratio of calcium aluminate titanate micropowder: silicon micropowder: vanadium pentoxide micropowder is 1: (0.15~0.17): (0.025~0.03), described calcium aluminate titanate micropowder, described silicon micropowder and The vanadium pentoxide micropowders are mixed and ball milled for 2-3 hours to obtain a mixture.
[0027] Then, the mixture is machine-pressed at 160-180MPa, kept at 1450-1480°C for 2-2.6 hours, cooled in a furnace, and crushed to obtain the modified calcium aluminate titanate refractory raw material.
[0028] The modified calcium aluminate titanate refractory raw material prepared in this ...
Embodiment 2
[0030] A modified calcium aluminate titanate refractory raw material and a preparation method thereof. The preparation method described in this embodiment is:
[0031] Firstly, the calcium aluminate titanate frit is kept at 1420-1450°C for 3-4 hours, cooled in the furnace, crushed, and ground to a particle size of ≤0.058mm to obtain calcium aluminate titanate powder.
[0032] Then press described calcium aluminate titanate micropowder: silicon micropowder: the mass ratio of vanadium pentoxide micropowder is 1: (0.16~0.18): (0.02~0.026), described calcium aluminate titanate micropowder, described silicon micropowder and The vanadium pentoxide micropowders are mixed and ball milled for 2-3 hours to obtain a mixture.
[0033] Then, the mixture is machine-pressed at 160-180MPa, kept at 1470-1500°C for 2.5-3.1 hours, cooled in a furnace, and crushed to obtain the modified calcium aluminate titanate refractory raw material.
[0034] The modified calcium aluminate titanate refracto...
Embodiment 3
[0036] A modified calcium aluminate titanate refractory raw material and a preparation method thereof. The preparation method described in this embodiment is:
[0037] First, keep the calcium aluminate frit at 1400-1430°C for 3-4 hours, cool in the furnace, crush, and grind to a particle size of ≤0.058mm to obtain calcium aluminate powder.
[0038] Then according to the mass ratio of calcium aluminate titanate micropowder: silicon micropowder: vanadium pentoxide micropowder is 1: (0.17~0.19): (0.015~0.021), described calcium aluminate titanate micropowder, described silicon micropowder and The vanadium pentoxide micropowders are mixed and ball milled for 2-3 hours to obtain a mixture.
[0039] Then, the mixture is machine-pressed at 160-180MPa, kept at 1450-1480°C for 3-3.6 hours, cooled in a furnace, and crushed to obtain the modified calcium aluminate titanate refractory raw material.
[0040] The modified calcium aluminate titanate refractory raw material prepared in this...
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