|
A. Incoming Material Control
:
|
Sr. No. |
TEST PARAMETERS |
SAMPLES |
TEST PROCEDURES |
|
1 |
Chemical Composition |
Sample testing for cross checking |
Spectrophotometer, Strohlein Apparatus, wet chemical
analysis |
| 2 |
Physical test *Tensile test |
Sample testing for cross checking |
Universal Tensile testing machine (40 Tons) |
| 3 |
Dimensions
*Width *Thickness |
100%
100% |
Calibrated Measuring
Tape
Calibrated Micrometer |
| 4 |
Visual |
100% |
Absence of surface defects, damaged edges |
B. Bought Out Component :
|
1. |
Chemical Composition |
1 Sample from each consignment of one size |
Spectrophotometer, Strohlein Apparatus, wet chemical
analysis |
|
2 |
Physical test *Expansion Test *Pressure Test |
Maximum 8 samples from each consignment of one size |
Expansion Testing
Machine
Socket Hydraulic Testing Machine |
| 3 |
Dimensional Inspection |
Maximum 32 samples from each consignment of one size |
Calibrated Vernier |
| 4 |
Metrological Test |
Maximum 32 samples from each consignment of one
size |
Calibrated Ring &Plug gauges |
| 5 |
Galvanising Test
*Zinc caoating
*Uniformity
|
Maximum 2 samples from each consignment of one
size
Maximum 2 samples from each consignment of one size |
Weighing balance CuSO4 dip test
|
| 6 |
Visual Inspection |
100% |
Absence of Black Spots, Rough Coating |
C. Process Quality Control :
#Slitting Line
|
1. |
Dimension *Thickness |
100% |
Calibrated Micrometer/Vernier |
|
2 |
Visual |
100% |
Surface defects |
# Tube Welding
|
1. |
Dimension *Diameter
*Thickness *Mass *Length |
One sample per hour One sample per hour |
Calibrated Micrometer / vernier / Tape Weighing scale |
|
2 |
Physical test *Flattening/Bend Test *Tensile Test |
One sample per hour One sample per shift for each |
Universal Tensile Testing Machine Bend Testing
Machine
Hydraulic Machine |
| 3 |
Eddy Current/ Hydro Test |
100% |
Eddy Current Testing Machine. Hydrostatic Pressure Testing
Machine (50kgs/cm2) |
| 4 |
Visual |
100% |
Toolmarks, Roller marks, weld cracks, Overlap,
Weld beads, Embossing |
# Galvanising
|
1. |
Zinc Coating |
Once in every 2 hours |
Weighing Balance |
|
2 |
Uniformity |
Once in every 2 hours |
CuSO4 Dip Test |
| 3 |
Adhesion |
Once in every 2 hours |
Bending,Pivot Hammer Test |
| 4 |
Visual |
100% |
Absence of black spot, rough coating etc. |
# Threading
|
1. |
Metrological Test |
10 Samples per hour |
Standard calibrated thread gauges |
|
2 |
Visual |
100% |
Absence of broken, rough, short threads |
D: Final Inspection :
|
1. |
Packing *visual |
100% |
Quantity, defects, straightness |
E: Quality Audit :
| 1) Internal Quality Assurance Reports
2) Our Process & Product is approved by following Inspection
Agencies during Third Party Inspections :
# SGS #EIL #RITES #LRIS
#NTPC #BHEL #EPIL
#BVQI #PDIL #UHDE # LIOYDS
#DNV |
|
