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Foundry Bentonite |
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Foundry Bentonite |
Foundry Bentonite |
| My company produced "Hua Wei" brand casting bentonite applied to the wet type, dry type, dry type, high-pressure type such as a different process cast steel, cast iron production. Main features are: (1), by adding small quantities, high intensity; (2), good air permeability; (3), hot wet tensile strength of high ability of anti-coarse; (4), heat is good; (5 ), a good reusability. Used as core sand binder, sand can have a good process performance, improve casting surface finish to ensure the casting quality, increase yield. In recent years, the company has developed and produced a new type of sodium bentonite and bentonite casting efficiency with superior integrated process performance, is the ideal binder for foundry sand。 |
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Casting Bentonite powder speeification
| items\Type |
Sodium Base Bentonite |
Calcium Base Bentonite |
| First grade |
Second grade |
| Methyl biue g/100g ≥ |
32 |
32 |
30 |
| Colloid value ml/15g ≥ |
500 |
400 |
48 |
| Swelling value ml/g
≥ |
50 |
20 |
10 |
| PH value |
8.0-9.5 |
8.0-9.5 |
6.5-7.5 |
| Wet pressure strength Kpa ≥ |
50 |
40 |
30 |
| Hot wet tension strength Kpa
≥ |
3.0 |
2.0 |
1.5 |
| Moisture%
≤ |
10 |
10 |
10 |
| Fineneess（pass 200mesh screen）≥ |
95 |
95 |
95 |
| Pakage |
25kg 50kg 1000kg |
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