2013年12月14日星期六

Garnet sand Detail

garnet sand, garnet abrasive raw materials, with high hardness, high temperature stability, chemical resistance, uniform particles, high grinding efficiency, no scratches and other characteristics suitable for water jet cutting industry;. Various metals, plastics , wood and other surfaces sandblasted industry; ultra-fine grinding machinery industry, precision casting and for CRT glass, optical glass, silicon and other grinding industries;
Garnet sand origin
China garnet sand origin especially Inner Mongolia, Jiangsu Lianyungang, Rizhao most representative Mongolia garnet hardness, but mainly for the wind to wash the dust content is relatively large, the impact of cutting speed, the other, mostly small workshop production, deep Habitat inland transport costs are very high; Jiangsu Lianyungang garnet sand has been a major producer of domestic pomegranate sand, bright colors, hardness in general, open pit, mostly for local small workshop production, and therefore cheap low cost cheap, quality control is not strictly , often have a variety of impurities, often waterjet plug phenomenon, by the end of 2011, Lianyungang local government closed the mine, prohibit any person opened indiscriminate mining, which led to a very tight supply of garnet sand; Shandong Rizhao garnet sand for the deep mine, blackish dark red color, hardness, starting in 2011 in the domestic market, is less well known and therefore another origin, supply capacity, quality and stability, maritime land are more convenient, the next few years The main origin of Chinese garnet silica sand price.
Garnet sand process data and physicochemical properties
1, chemical analysis: (%)
SiO2 :36 - 40 AL2O3 :20 - 24 Fe2O3 :4 - 6 TiO2 :0-0 .5 MgO :8-13 FeO :22 - 24 CaO :6 - 9 MNO :0-0 .5
2, Hardness: Mohs 7.5-7.9;
3, specific gravity: 3.98
4, strength: Tough
5, gloss: shiny glass
6 forms: angular, irregular
7, crystal shape: isometric crystal system, octahedral corners
8 Streak: White
9 colors: cherry red, orange-red based
10, cleavage: Texture little, irregular cleavage plane
11 Transparency: Transparent
12, melting point: 1340 ℃
13: Magnetic: weak magnetic
14: Water Absorption: non-absorbent
15: Dispersion: Self-diffusion
16: Uniformity: homogeneous body
17, pathological response: None
18, the silicon content of hazardous freedom: None

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