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Sun
Clay - Air Clay
| |
SLIP MIXING RECORD
| DATE |
NO. OF BAGS |
WATER (LITRES) |
SODIUM SILICATE (ML) |
DISPEX (ML) |
AIM LITRE WEIGHT |
COMMENTS |
| CHECK PALLET |
8 |
92 MIN
96 MAX |
448
MIN & MAX |
304 MIN
448 MAX |
1725 |
Main recipe per supplied sheet
25 kg Bag makes approx 20 L of slip |
| EXAMPLE |
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| 09/05/09 |
8 |
96 |
448 |
120 |
1740 |
Reduce Litre weight to 1725 - still thick |
| |
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3.3 |
|
|
1725 |
Still
thick - increase Dispex and water |
| |
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120 |
1725 |
Good
fluidity - leave to age |
| 10/05/09 |
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|
1725 |
Thickened
up - add small amount Dispex |
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80 |
1725 |
Good |
| TOTALS |
8 |
99.3 |
448 |
320 |
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CALCULATION TO REDUCE LITRE WEIGHT
CURRENT LITRE WEIGHT MINUS AIM LITRE WEIGHT
= (A)
AIM LITRE WEIGHT MINUS 1000 = (B)
DIVIDE (A ) BY (B) = (C)
MULTIPLY (C) BY THE NUMBER OF LITRES OF SLIP THE
BATCH SHOULD MAKE (8 BAGS X 20 LITRES) AND THIS WILL GIVE YOU THE NUMBER OF
LITRES OF WATER TO ADD TO THE BATCH.
EXAMPLE
CURRENT LITRE WEIGHT OF 1740 MINUS AIM LITRE
WEIGHT OF 1725 = 25
AIM LITRE WEIGHT OF 1725 MINUS 1000 = 725
DIVIDE 25 BY 725 AND MULTIPLY BY 160 (TOTAL
LITRES OF SLIP) = 3.3 LITRES OF WATER TO CORRECT LITRE WEIGHT.
IN AREAS OF HARD WATER ( WHERE IT IS DIFFICULT TO
GET SOAP OR SHAMPOO TO LATHER) THE CONTENT OF SOLUBLE SALTS IS HIGHER THAN IN
MELBOURNE WHERE THE RECIPE HAS BEEN PROVEN. THE ADDITION OF 25 GMS OF BARIUM
CARBONATE PER 25 KG BAG WILL RESOLVE THE PROBLEM. NO BENEFIT WILL RESULT
FORM THIS ADDITION IF THE WATER QUALITY IS NOT AN ISSUE.
Casting
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