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Chengdu grade 92 silica fume

Release time:2021-11-02
Chengdu grade 92 silica fume specification (2mm-10mm) sieve residue (weight)

500um-180um (30 mesh - 80 mesh) + 500um ≤ 3% - 180um ≤ 10%

425um-150um (40 mesh - 100 mesh) + 425um ≤ 5% - 150um ≤ 15%

250um-140um (60 mesh - 110 mesh) + 250um ≤ 3% - 140um ≤ 10%

125um-74um (120 mesh - 200 mesh) + 125um ≤ 3% - 74um ≤ 10%

-74um (- 200 mesh) + 74um ≤ 5%

-45um (325 mesh) + 45um ≤ 5%

5um-1um (2500 mesh - 12500 mesh) + 5um ≤ 5%

As metallic silicon is a kind of hard and fragile material, the screening residue in the grinding process can not be effectively controlled, and the over grinding phenomenon is serious, resulting in large product waste, high production cost and unqualified product particle size, so that the products are not competitive.
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