1, mixing material: making slurry should be mixer mixing, artificial mixing must ensure uniform mixing, shall not be mixed with raw meal, the slurry must be side mixing side, with slurry slurry may not be used.
2, the strength of the monolithic magnesium gas pipe is determined by the combination of the inorganic cementing material and the quality and the number of plies of the glass fiber cloth. Therefore, the wall thickness of the magnesium glass tube should be controlled in a reasonable range. The wall thickness of magnesium silicate pipe and the specification of flange and the number of layers of glass fiber cloth shall conform to the provisions of table 5.2.3-1 and table 5.2.3-2.
Table 5.2.3-1 wall thickness of magnesium silicate duct and flange specification (mm)
Circular duct diameter or length of side wind D size B (mm) wind pipe thickness (mm) flange specifications (mm) width * thick flange flatness (mm)
D (b) = 3002.5 ~ 3.540 * 10 = 2
300<D (b) = 5003.5 ~ 4.545 * 12 = 2
500<D (b) = 10004.5 ~ 5.545 * 14 = 2
1000<D (b) = 15005.5 ~ 6.550 * 16 = 3
1500<D (b) = 20006.5 ~ 7.550 * 18 = 3
D (b) >2000 7.5 ~ 8.555 * 20 = 3
Table 5.2.3-2 glass fiber cloth thickness (mm) and number of plies
Circular duct diameter or length of side wind D size B (mm) tube glass fiber cloth layers of glass fiber cloth layers of flange
C1 C2 C1 C2
D (b) = 3005497
300<D (b) = 50075118
500<D (b) = 100086129
1000<D (b) = 1500971410
1500<D (b) = 20001281814
D (b) >2000 1492116
Note: C1 and C2 are glass fiber fabrics of thickness 0.3mm and 0.4mm, respectively.
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