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Bandy Black

For casting slips

OxideAnalysisFormula
CaO0.09%0.007
MgO0.12%0.012
K2O1.69%0.075
Na2O0.36%0.024
P2O50.07%0.002
TiO21.29%0.067
Al2O324.50%1.000
SiO261.00%4.226
Fe2O30.99%0.026
MnO0.01%0.001
LOI9.74
SO30.11
Oxide Weight375.19
Formula Weight416.19
If this formula is not unified correctly please contact us.

This product was discontinued by H. C. Spinks Clay Company in 2003, it is no longer available. It was used as a coarse ball clay, therefore, contributing to fast slip casting, as well as strength, therefore reducing the tendency to crack after casting or break during handling (usually coarse ball clays are limited in their contribution to strength). It was discontinued because more the industry was interested in blended products that included a larger range of particle sizes. That means a user required only 2 or 3 ball clays for their formulas (instead of 4 or 5) thereby saving space and inventory costs.

Relative Viscosity (1.2 Sp. Gr.):* 1.26
Casting Rate: (gms per 15 min/426 cm2):* 258
Water of Plasticity:* 23.2
% Dry Shrinkage:* 3.2
Dry M.O.R., psi:* 328

Cone 04 8 11
----
Fired Shrinkage:* 0.0% 3.6% 6.2%
Absorption:* 21.9% 14.3% 6.9%
M.O.R. psi:* 303 3690 5320

Thermal Expansion, Cone 8: .375% at 700C
P.C.E.: 31
pH: 4.1
Oil Absorption: 32
Bulk Density, lbs per cubic foot: 37-45
Particle Size, Microns: 20 10 5 2 1 0.5 0.2
92% 84% 69% 44% 25% 11% 3%

*Specimens: De-aired, extruded, 50% ball clay, 50% flint


Out Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Bandy Black" descrip="For casting slips" searchkey="" loi="0.00" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.090" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.120" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.690" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.360" tolerance=""/> <oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.070" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.290" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="24.500" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="61.000" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.990" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.010" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="9.740" tolerance=""/> <volatile symbol="SO3" name="Sulfur Trioxide" percent="0.110" tolerance=""/> </volatiles> </material>


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