Environment-friendly magnesium dry material and its preparation process
A dry-type, environmentally friendly technology, applied in the field of refractory materials, can solve problems such as non-compliance with the production requirements of clean, green and environmentally friendly high-quality steel billets, on-site construction workers and environmental hazards, affecting the use effect of dry-type materials, etc., to increase the overall Diffusion effect, reduction of hardening time, effect of improving erosion resistance
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[0028] The invention provides an environment-friendly magnesium dry material, which comprises a mass ratio of 60-75:20-30:8-10:15-25:8-12:2-4.5:1-2:0.5-1.5: 0.8-1.2 sintered magnesia, fused magnesia, calcium magnesium olivine, binder, aluminum hydroxide micropowder, high temperature sintering agent, expansion agent, floating beads, bentonite. Among them, the binding agent is Na 2 SiO 3 9H 2 O, the high-temperature sintering agent is clay, the expansion agent is kyanite, and the bentonite is natural bleaching earth.
[0029] Table 1 shows the ratio of raw materials of environment-friendly magnesium dry materials in Examples 1-8 of the present invention.
[0030]
[0031]
[0032] Table 1
[0033] The dry-type material raw material of proportioning in implementing 1 is made dry-type material finished product in the following way:
[0034] 1. Grind the raw material fused magnesia, and sieve it with a 200-mesh screen to obtain fused magnesia that meets the requirements ...
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