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RECEIVING INSPECTION |
All
our raw materials received are tested against stringent
international standards for the following properties before
being passed for processing:
-
Chemical composition
- Non-metallic inclusions
- Diameter and roundness
- Macroetching
- Harmful Surface defects and internal soundness
- Grain size
- Hardness
- Decarburization
Any
raw material not found adhering to any of these properties
is rejected and returned to the supplier with a complete
test report and the reason for rejection. Moreover, all
vendors are rated on a regular basis and performance trends
are constantly monitored.
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ON-LINE PRODUCTION INSPECTION |
Qualified
and trained personnel undertake strict on-line inspection
throughout the production
process. All parameters of the production equipment are
constantly monitored during the production cycle. At every
step our online quality control personnel check samples
for dimensional accuracy, forming, hardness, clip pressure,
surface cracks and other properties prescribed for the
clips in the process control standards. Adequate inspection
and application fixtures, precision measuring instruments,
Go & No-Go gauges have been provided to the inspection
personnel for a thorough inspection of the rail clips.
Production
process certification are carried out by Class A Inspection
Agencies if the customer so desires.
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FINAL INSPECTION |
The
Rail Clips are subjected to rigorous testing for all properties
as per AREA specifications or to customers' requirements
before they are finally passed for shipment. Samples are
drawn from the shipment lots and checked for :
-
Dimensional accuracy
- Hardness
- Toe load (Clip pressure test)
- Application & Deflection
- Longitudinal Restraint Test
- Lateral Restraint Test
- Dynamic Load Test
- Magnetic Crack Detection. |
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Apart
from these internal tests, our Elastic Rail Clips are
tested by inspecting engineers
of various railways at our testing facility or in their
own laboratories. |