• date_rangePosted On :   Feb 02' 2009
• location_cityCity :   Dhaka
• languageCountry :   Bangladesh
• content_pasteEnquiry No. :   9020247

Looking to buy China Clay (Black/Casting)

(a) Form : Lump/Noodles
(b)Before firing : White
(c) After firing (at. SK-9) : White
Moisture Content (%) : 5.0 mix
Rest on sieve. (%) (63 �over) : 0.5 max

Viscosity (Fluidity/100 ml)
(a) Consistency (%) : 50.00
(b) Time (Sec.) : 6.5 max
(c) Dellocculent (%) : 0.15 max
(At 50% Consistency using maximum 0.15% deflocculent
(Sodium Silicate the flow through 0.42 cm orifice

Castibility
(a) Casting rate (mm)/30 mm. : 6.0-8.0
(b) Drying efficiency/Hardness (No)
(i)After 8 mm. : 2.0
(ii) After 15 mm. : 3.0

Plasticity : Good
Refractoriness : SK 35/36
Shrinkage (%)
(Specimen to be prepared by casting method in plasters Moulds).
(a) Drying (Dried at 110�C) : 5.0�1.0
(b) Firing (Fired at SK-9) : 9.0�1.0
(c) Total : 14.0 � 1.0

Bending Strength (Kg/Cm2)
(a) Green : 8.0
(b) Fired : 300.0

Chemical Composition
Loss on Ignition (%) : 13.5 max.
Silica as SiO2 (%) : 50.0 max.
Alumina as Al203 (%) : 34.0 mm.
Calcium as CaO (%) : 0.8 max.
Magnesium as MgO (%) : 0.5 max.
Iron as Fe203 (%) : 0.75 max.
Titan as Ti02 (%) : 0.75 max.
Alkali as KNaO (%) : 1.50 max