:: GENERAL QUALITY ASSURANCE PLAN ::
 
Material/Stage
Characteristics
Type of Test
Frequency
Format
Agency
RAW MATERIAL
Scrap
Chemical Composition
Chemical Analysis
One/Lot
Chemical Analysis Reg.
Chemist
Silica Sand
Size Distribution & Moisture Content
Sieve only
-do-
Sand Test Reg
-do-
Bentonite
Gel Formation
Geltime
-do-
Reg
-do-
 
 Alkalinity
PH Valu
-do-
-do-
-do-
Dextrine Powder
Ash Content
a
-do-
-do-
-do-
MELTING
Bath Sample
Chemical / Composition
Chemical Analysis
100%
Melt.Analysis Reg.
Chemist
Final Sample
-do-
-do-
-do-
-do-
Inspector
Test Bar
Physical Properties
i) U.T.S
Physical
Physical Test
-do-
 aa 
ii) Elongation
Test Reg
Reg
 a 
a  
iii)Yield Stress
-do-
-do-
-do-
 a 
a  
iv) Hardness
-do-
-do-
-do-
v) Microstructure
-do-
-do-
-do-
Tapping Temp
Temperature
Temp. Meas
100%
Reg
Melter
MOULDING
Mould Mix
Physical Properties
i) Moisture Cout
100%
Sand Test Reg
Inspector
a  
 
ii) Permeability
-do- 
a  
a  
 a 
a  
iii) G.C. S
-do- 
 
a  
Moulds
Mould Assly
Proper Assembly
Visual
100%
Inspection Reg
Supervisor
Mould
Hardness
Hardness Testing
100%
-do- 
-do- 
INSPECTION
Pattern
Patt. Quality
Dimensions
100%
Inspection Reg
Inspector
Knockout
Casting Quality
Visual / Primary
100%
-do-
-do-
Final Inspection
-do-
Dimensions
100%
-do-
-do-
HEAT TREATMENT
Heat Treatment
H.T.Cycle
Adherence to H.T.Cycle
100% Chart
Heat Treatment
Log Chart
Inspector
 
 
 
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