Dry type working liner material for erosion resistance continuous casting tundish
A working lining and corrosion-resistant technology, which is applied in the field of dry-type working lining for corrosion-resistant continuous casting tundish, to achieve the effect of improving high temperature strength and slag erosion resistance, and increasing service life
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[0028] The present invention will be described in detail below in conjunction with the examples.
[0029] This embodiment is the preferred solution of the present invention, and has the characteristics of high high temperature strength, strong slag erosion resistance, and high service life.
[0030] Its raw material ratio is:
[0031] Magnesia: 33% of sintered magnesia with a particle size of 5-1mm, 20% of sintered magnesia with a particle size of 1-0.2mm, and 28% of sintered magnesia with a particle size of ≤0.074mm;
[0032] Additives: 7% of fused magnesia-chromium sand with particle size ≤0.088mm, 3% of Cr2O3 micropowder;
[0033] Burning accelerator: 2% of light-burned magnesium oxide with particle size ≤0.045mm;
[0034] Binder: resin powder 5%, dextrin 2%.
[0035] The technical indicators of raw materials are tested as follows:
[0036] Sintered magnesia: MgO≥95.0%, SiO2≤2.0%, CaO≤1.6%, ignition loss≤1.0%, particle bulk density≥3.25g / cm 3 .
[0037] Fused magnesia...
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