Presentation of test results
The results of the fulfilled diagnostics using the MMM method and
conventional inspection methods and means are presented in the form of the
report (conclusion). The report, as a rule, includes the following parts:
At the Customer's request the report provides the detailed data on test
results of all units with printout of diagrams characterizing the units'
stressed-strained state.
Once carried out, a 100% equipment MMM-inspection allows detecting the least
reliable elements and units, selecting inspection areas in order to further
inspect only them. Based on MMM-inspection results certification of the most
damageable parts and units may be introduced in repair practice. For example,
for turbine last stages blades a certificate for each individual blade can be
made by magnetic characteristics, and further monitoring of their condition
variations and their timely replacement can be performed. Test results by
conventional methods (UT, metallographic analysis, thickness and hardness
measurement, etc.) are presented as separate conclusions supplemented to the
MMM-inspection data.
Conclusions and recommendations include:
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basic inspection results of units limiting equipment reliability;
-
reasons of detected damages and defects;
-
measures on reliability assurance reflecting individual units recommended
for replacement during a regular repairs and during the next overhaul, works
on structures strengthening;
-
life estimation and recommendations on its prolongation terms as well as
the terms of the next inspection using NDT means.
The title page and conclusions on individual inspection types should contain
executors' surnames and their qualification level. The number of State
Engineering Supervision (Rostechnadzor) of Russia license should be indicated on
the page. Director of Energodiagnostika Co. Ltd approves the report. |
