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NEWSLETTER |
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A quarterly publication of |
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Scientific and Engineering Services Dte., Pakistan Atomic Energy Commission |
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Issue No 30 October-December,2002 |
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Previous
i.e. issue No. 29 of the Newsletter comprised of 10 pages that is to say it
was the biggest after issue No. 17 that consisted of 6 pages and carried a
special supplement of 8 pages taken out in July -Sep. 1999 to commemorate
centenary of training courses conducted by the National Centre for Non-
destructive Testing (NCNDT). It
is our endeavour that more technical literature related to NDT is published
and new developments or innovations made in the field are made public. In
this context the various NDT companies of the country are requested to share
their experiences and ask for solutions of their bottleneck problems from
other experts in the field through this Newsletter. NCNDT through its team
of Scientists and Engineers is, however, always keen to extend help in all
matters where it has expertise. Secondly,
we would suggest that NDT organizations should advertise their products and
services through the columns of this Newsletter at very nominal rates as, in
our humble opinion, this is the only national professional publication that
reaches the local NDT community regularly and encompasses a large number
(over 600) of recipients throughout the country to approach a specialised
market. Columns
of NDT Newsletter can also be used to seek employment by giving your
particulars of education, training, experience details, position sought and
postal address, etc. or for filling up vacant posts. Such service shall be
provided free of cost. We would also welcome useful suggestions from the readers for making the Newsletter more comprehensive and beneficial.
Drop
weight testing of the engineering materials is conducted to determine Nil
Ductility Transition Temperature (NDTT) and to study the fracture behaviour.
This testing is the prerequisite regarding raw materials of thick-walled
pressure vessels and piping used in nuclear & process industry, etc.
Carbon steel and low alloy steels are typical examples of materials calling
for drop weight testing. The determination of NDTT is important not only for
safe operation but is also mandatory for the design and fabrication of
pressure vessels and piping as per internationally recognized Codes like
ASME & API, etc. Considering
the impotance of such testing Heavy Mechanical Complex-3 (HMC-3) has
designed and fabricated drop weight testing machine indigenously. The
machine is commissioned and operational and is probably the only one of its
kind available in the country. The machine is skillfully designed to
accommodate different shapes of striking tup, different types of specimen,
energy and velocity requirements of hammer and different testing
temperatures as per various standards governing drop weight testing. The
main specification/features are given hereunder: Specification
.Effective weight - Variable from 125 lb. upwards .Effective height - Variable (maximum 15 feet) .Striking
tup
- Detachable and available in various radii Anvils.
- Various types as per different testing standards .Testing
- Range-150 C to +l00 C and more Testing
time .
- Less than 10 seconds Contributed
by: Mr Azfar Naeem.
In-service
inspection (1S1) is very important for the life assessment of plants. The
plants which relax in their ISI programme may face worst consequences. NCNDT
has rich experience of taking up in-service inspection works of oil
refineries, gas processing plants, thermal power plants and hydel power
plants, etc. Utilizing this experience in Pakistan Atomic Energy Commission
(PAEC) a contract was signed between NCNDT and Chashma Nuclear Power Plant (CHASNUPP
or in short CNPP) for in-service inspection of conventional Island of CNPP for its First Refueling Outage
(RFO-1). The
scope of work as per contract was NDT (PT, UT, ET and RT) of sixty five
welds of different piping system like main steam piping, steam bypass
piping, 1st stage reheat steam piping, 2nd stage reheat steam piping and
main feed water piping, etc. Ultrasonic thickness measurement of
representative pipes of different systems and high pressure feed water
header and main steam header in conventional Island were also included in
the scope. Visual testing of HP heaters for their supports and impingement
plates, eddy current testing of main condensers, high pressure heaters and
component cooling water (CCW) heat exchanger were also encompassed. The shut
down of CNPP started on 30th Sep., 2002.
The
teams for execution of NDT work were decided. The activities were planned to
be executed in parallel. Each team was given time-oriented goal for
completing the work, which they met successfully. QA documents like QA manual, Q-plans, technical procedures and administrative procedures were prepared. All the NDT work was well documented and well planned. CHASNUPP as owner and NCNDT as contractor extended good co-operation with each other. The NDT work was executed in a friendly atmosphere and NDT reports complete in all respects were submitted to CNPP.
NCNDT
is pleased to announce the availability of third party inspection services
to the National/Private industries. Now industries can hire highly skilled
manpower from NCNDT in all major Techniques of Non-destructive Testing. Recently,
NCNDT has successfully provided such services to M/s UCH Power Plant, Dera
Murad Jamali, Balochistan. The following activities were undertaken by NCNDT
inspection team: i)
Audit and control of NDE contractor activities. ii)
Review of NDE results of contractor. iii)
Certification of pressure vessels inspection. iv)
Preparation of summary of NDE and inspection reports of pressure
vessels. For
hiring third party inspection services, interested parties may contact. Mr.
Asghar Ali Khan, Director NCNDT at Phone No. (051)-9258528 or through Fax
No. (051)- 9258524.
Proposed Training and Certification schedule of NCNDT for 2003 is announced below. However, due to increased number of applicants, a particular course may be repeated. Also requests of the industies for holding any course at their premises can be accomodated.
NCNDT
Re-certification & Re-examination activitie wew conducted for the participants belonging to organizations such as M/s KANUPP, CHASNUPP, Moody International, Cresent Steel & Allied Products and JIACCO, etc. Eight candidates appeared in different NDT techniques like RT, UT, PT & MT. .
Following
main industrial inspection & testing services were provided by NCNDT to
the local industries during the reported period in addition to meeting
its internal demands: 1.
Radiographic testing services to DESCON ENGG. (pvt.) Ltd., Lahore with Co-60
source. 2.
Hydrostatic testing of GI pipe samples (Dia. 3" & 4") for M.
Ayub & Brothers Engg. & Contractors. 3.
Nick break test of welded pipe sample for Marthon Construction Company Ltd. 4. Repair, maintenance and calibration of viewer for PIA. 5. Third party inspection services for VCH power station. 6.
PT of CNPP. 7. Hydrostatic testing of air-receiver tanks for Rastgar & Co. 8.
Bend test of deformed bar for IKAN Engineering Services. 9. Calibration of ET equipment for PIA. PASNT WEBSITE It is announced with pleasure that the website of Pakistan Society for Non-destructive Testing (PASNT) has been introduces on August, 2002. The website address is www.pasnt.freeserver.com. This website includes useful information about NDT, NCNDT, PASNT, Certification of NDT personnel in Pakistan, Details & fee schedule of NDT training cources and links to other useful NDT websites. Readers may also download the application forms for training and certification programmes at NCNDT and PASNT membership forms, etc.
Following international events in the shape of Conference/Symposium/Exhibition, etc. related to NDT are falling in near future:
*Mr. Asghar Ali Khan, Director NCNDT attended First Research Co-ordination Meeting (RCM) on "Corrosion and Deposit Determination in Large Pipe Diameters", under IAEA Research Contract Programme for 2002 at IAEA Headquarters Vienna, Austria from 4 -08, November 2002. * Mr. M. Afzal, Principal Engineer, NCNDT and Mr. M. Gulab, Senior Engineer NCNDT received training in "Non-Destructive Evaluation of Pressurized Components and Concrete Structures" under IAEA Technical Co-operation Programme at Bangi, Malaysia from 26-8-2002 to 25-11-2002.
During the period Octoberl to December 2002 following personnel visited NCNDT:
During the reported quarter the following officers of NCNDT visited the organization mentioned hereunder:
1. Dr. M. Sabir Ch., Chief Scientific Officer visited
Seamless Tube Plant (STP)-Kundian to perform
2. Mr. Zaheer Ahmed, Principal Engineer & Mr. Tahir Nazir,
Senior Engineer visited UCH Power
Officers and staff of NCNDT congratulate Mr. M. Arif Iftikhar on his promotion as Principal Engineer w.e.f.01-12-2002.
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