OVERVIEW OF NDT
(40 Hour/5 Day Course)
This course is designed for managers/NDT supervisors
requiring a basic knowledge of NDT; inspection methods and the associated
approval systems. The course comprises:
Penetrant Inspection - 5 hours
The principles of liquid penetrant
inspection - advantages and disadvantages - types of penetrants
available and their uses - compatibility and sensitivity - study of manual
developers - types and operation of various penetrants,
emulsifiers/removers and developers - interpretation of indications relevant
and non-relevant - penetrant line systems and quality
control.
Magnetic Particle Inspection - 5 hours
The principles of magnetic particle inspection -
advantages and limitations - surface preparation - safety precautions -
description of materials - principles of magnetism - flux leakage fields -
basic principles of electricity - description of waveforms - magnetic hysteresis - magnetisation methods and their sequence of
operation - type of magnetising equipment - detection media - flux field
indicators - interpretation and recording of indications - demagnetisation and
equipment control checks.
Eddy Current Inspection - 10 hours
The basic principles of electricity - generation of
eddy currents - electromagnetic induction - variables that have an effect on
eddy currents - different types of test equipment - high and low frequency -
types of calibration blocks - various types of probes, coils and coil
arrangements - practical application of eddy currents - AC theory involving
application of Ohm's Law to simple and complex circuits - study of basic eddy
current test circuits - vector diagrams - theory of impedance plane analysis -
practical applications of phase analysis - interpretation of relevant and
non-relevant indications.
Ultrasonic Inspection - 10 hours
This is an introduction to ultrasonics
- nature and transmission of sound application - methods of generating and
receiving ultrasonic energy - types of transducers with descriptions of
different elements - modes of travel of ultrasonic energy in a material -
distribution of sound from transducers - calculations regarding the beam
characteristics of various transducers - ultrasonic sound energy reflection
from material interfaces - calculations relating to the amount of sound energy
reflected and changes in refracted angles due to differing acoustic velocities
in materials - main component parts of test equipment - types of test and
different ways of displaying ultrasonic information.
Radiographic Inspection - 10 hours
The course comprises an explanation of relevant safety
procedures - use of badges/TLD's and doserate meters - dose limits - properties of radiation -
radiographic principles - radiation sources - types, structure and methods of
packing industrial x-ray film - study of darkroom procedures including checking
equipment - purpose and use of individual chemicals - methods of manual and
automatic processing - identification of handling and processing faults.
The production and uses of film, characteristic curves
and exposure charts - calculation of exposure and correction procedures - study
of x-ray production and construction of various types of equipment - factors
that affect both exposure and sensitivity - physiological effects of radiation
together with safety procedures. Radioactive isotopes -
safety of operation and calculations of exposure.
For further information please contact the Training
Manager.