Performance
|
Domestic first grade automatic foundry process line
|
Domestic second grade hand making foundry process line
|
Wet pressure strength/kpa≥
|
120
|
70
|
Hot wet tensile strength/kpa≥
|
4.5
|
4
|
Methylene blue adsorbed/(g/100g)≥
|
35
|
28
|
75μm pass rate/%≥
|
97
|
97
|
Swelling capacity/(2g/100ml)≥
|
30
|
30
|
Moisture content≤
|
11
|
11
|