الخطوط العريضة

 

 

Reasons for leak testing

• Material loss prevention
• Contamination
• Component/system reliability
• Pressure-differential maintenance
• Personnel/public safety

 

Functions of leak testing

• Categories
• Applications
•  Training and certification

 

Leak Testing Fundamentals

• Terminology
• Leakage terms
• Leakage tightness
• Quantitative/semi-quantitative
• Sensitivity/calibration terms

 

Leak testing units

• Mathematics in leak testing
• Exponential notation
• Basic and fundamental units
• Systeme Internationale (SI) units

 

Physical units in leak testing

• Volume and pressure
• Time and temperature
• Absolute values
• Standard or atmospheric conditions
• Leakage measurement

 

 

Leak testing standards

• Capillary or permeation
• National Institute of Standards and Technology (NIST) standards
• System versus instrument calibration
• Inaccuracy of calibration

 

Flow characteristics

• Gas flow
• Liquid flow
• Correlation of leakage rates
• Anomalous leaks
• Leak clogging

 

Vacuum fundamentals :

Introduction to vaccum

• Terminology
• Principles
• Units of pressure

 

Characteristics of gases

• Kinetic theory
• Mean free path
• Gas laws
• Quantity, throughput and conductance of gas
• Quantity
• Comparison with an electric circuit
• Comparison with water flow
• Conductance analogy with electrical resistance
• Resistance connected in series
• Resistance connected in parallel
• Vacuum system operation
• Effects of evacuating a vessel
• Pump-down time

1.1 Vacuum system characteristics

 

General

• Operating limits
• Rate of pressure rise B measurement
• Vacuum pumps
• Mechanical pumps (positive displacement)
• Oil-sealed rotary pumps
• Construction
• Operation
• Pump fluids
• Difficulties with rotary pumps
• Care of rotary pumps
• Mechanical booster pumps
• Vapor (diffusion) pumps
• Construction
• Operation
• Pump fluids
• Difficulties with diffusion pumps
• Diagnosis of diffusion pump trouble
• Sublimation pumps (getter pumps)
• Ion pumps
• Turbomolecular pumps
• Absorption pumps
• Cryopumps

من ينبغى أن يحضر

 

• The course is designed for anyone who is interested in satisfying the classroom training requirements for Leak Testing Level I certifications or who needs a thorough knowledge and practical experience of introduction Leak Testing.

المدة

5 أيام