Preface to the second edition
Preface to 1
foreword
Unit 1 welding arc and requirements for arc welding power supply
Integrated knowledge module-physical essence and ignition of welding arc
1 Physical essence of welding arc
Ability knowledge point 2 Ignition of welding arc
Comprehensive training
Comprehensive knowledge module 2 welding arc structure, voltage drop distribution and volt-ampere characteristics
1 Structure and voltage drop distribution of welding arc.
Ability knowledge point 2 volt-ampere characteristics of welding arc
Comprehensive training
Integrated knowledge module three AC arc
1 characteristics of AC arc
Ability knowledge point 2 continuous combustion conditions of AC arc
Ability knowledge point 3 Factors affecting AC arc combustion and measures to improve arc stability
Comprehensive training
Comprehensive knowledge module 4 Classification and characteristics of welding arc
Ability knowledge point 1 free arc
Ability knowledge point 2 compression arc
Ability knowledge point 3 pulse arc
Comprehensive training
Five requirements of comprehensive knowledge module for arc welding power supply
1 Requirements for no-load voltage of arc welding power supply
Requirements of ability knowledge point 2 on external characteristics of arc welding power supply
Requirements of ability knowledge point 3 on regulating characteristics of arc welding power supply
Requirements of ability knowledge point 4 on dynamic characteristics of arc welding power supply
Comprehensive training
Unit summary
The second unit arc welding transformer
Integrated knowledge module-principle and classification of arc welding transformer
Working principle of 1 arc welding transformer
Ability knowledge point 2 classification of arc welding transformer
Comprehensive knowledge module 2 ordinary magnetic flux leakage arc welding transformer
Ability knowledge point 1 arc welding transformer
Ability knowledge point 2 integral arc welding transformer
Ability knowledge point 3 Multi-station arc welding transformer
Comprehensive training
Integrated knowledge module three enhanced magnetic flux leakage arc welding transformer
Ability knowledge point 1 moving coil arc welding transformer
Ability knowledge point 2 moving iron arc welding transformer
Three-tap arc welding transformer
Comprehensive training
Maintenance and troubleshooting of four-arc welding transformer based on comprehensive knowledge module
1 Maintenance of arc welding transformer
Ability knowledge point 2 Common faults and troubleshooting of arc welding transformer
Comprehensive training
Unit summary
The third unit silicon arc welding rectifier
Composition and classification of integrated knowledge module-silicon arc welding rectifier
Composition of 1 silicon arc welding rectifier
Ability knowledge point 2 classification of silicon arc welding rectifier
Comprehensive training
Comprehensive knowledge module 2 Reactor-free silicon arc welding rectifier
Ability knowledge point 1 moving coil silicon arc welding rectifier
Ability knowledge point 2 moving core silicon arc welding rectifier
Three-tap silicon arc welding rectifier
Comprehensive training
Integrated knowledge module 3 Silicon arc welding rectifier with reactor
Structure and working principle of 1 magnetic saturation reactor
Ability knowledge point 2 Silicon arc welding rectifier without feedback magnetic saturation reactor
Ability knowledge point 3 total internal feedback magnetic saturation reactor type silicon arc welding rectifier
Four-part internal feedback magnetic saturation reactor type silicon arc welding rectifier
Ability knowledge point 5 Dynamic characteristics of silicon arc welding rectifier with magnetic saturation reactor
Comprehensive training
Common faults and troubleshooting of four silicon arc welding rectifier based on comprehensive knowledge module
Application and maintenance of 1 silicon arc welding rectifier
Ability knowledge point 2 Common faults and troubleshooting
Comprehensive training "
Unit summary
Unit 4 Thyristor Arc Welding Rectifier
Comprehensive knowledge module-overview of thyristor arc welding rectifier
Composition of 1 thyristor arc welding rectifier
Ability knowledge point 2 main characteristics of thyristor arc welding rectifier
Ability knowledge point 3 Application scope of thyristor arc welding rectifier
Comprehensive training
Comprehensive knowledge module of main circuit of double thyristor arc welding rectifier
Ability knowledge point 1 three-phase half-wave controllable rectifier circuit
Ability knowledge point 2 Six-phase half-wave controllable rectifier circuit
Ability knowledge point 3 Double-reverse star controllable rectifier circuit with balanced reactor
Comprehensive training
Tri-thyristor arc welding rectifier trigger circuit based on comprehensive knowledge module
Ability knowledge point 1 requirements for trigger circuit
2 sets of trigger circuits for ability knowledge points
Ability knowledge point 3 Single junction transistor trigger circuit
Ability knowledge point 4 Sine wave synchronous voltage transistor trigger circuit
Comprehensive training
External characteristic control circuit of integrated knowledge module of four thyristor arc welding rectifier
Comprehensive training
Brief introduction of five typical products of comprehensive knowledge module
Ability knowledge point 1 ZDK-500 arc welding rectifier
Ability knowledge point 2ZX5-400 arc welding rectifier
Ability knowledge point 3 thyristor reactor type rectangular wave AC arc welding power supply
Comprehensive training
Troubleshooting of Six-Thyristor Arc Welding Rectifier Based on Integrated Knowledge Module
Comprehensive training
Unit summary
Unit 5 pulsed arc welding power supply
Integrated knowledge module-overview of pulse arc welding power supply
Characteristics and application scope of 1 pulsed arc welding power supply
Ability knowledge point 2 method of obtaining pulse current
Ability knowledge point 3 classification of pulse arc welding power supply
Comprehensive training
Comprehensive knowledge module two single-phase rectifier pulse arc welding power supply
Basic forms and characteristics of ability knowledge points 1
Ability knowledge point 2 product introduction
Comprehensive training
Integrated knowledge module three magnetic saturation reactor pulse arc welding power supply
The basic principle and characteristics of ability knowledge point 1
Ability knowledge point 2 pulse arc welding power supply with pulse excitation magnetic saturation reactor
Ability knowledge point 3 product introduction
Comprehensive training
Comprehensive knowledge module four thyristor pulse arc welding power supply
Basic principle, types and characteristics of 1 thyristor intermittent pulse arc welding power supply
Ability knowledge point 2 Introduction of typical circuits
Comprehensive training
Integrated knowledge module five-tube pulsed arc welding power supply
Ability knowledge point 1 analog transistor pulse arc welding power supply
Ability knowledge point 2 switching transistor pulse arc welding power supply
Comprehensive training
Unit summary
Unit 6 arc welding inverter
Comprehensive knowledge module-basic knowledge of arc welding inverter
Composition and function of 1 arc welding inverter
Ability knowledge point 2 basic working principle of arc welding inverter
Ability knowledge point 3 External characteristics of arc welding inverter and adjustment of welding parameters
Characteristics, classification and application of four-arc welding inverter
Comprehensive training
Integrated knowledge module two thyristor arc welding inverter
Composition and working principle of ability knowledge point L
Ability knowledge point 2 the form of main circuit of frequency converter
Ability knowledge point 3 external characteristic control principle and welding parameter adjustment
Features and Typical Product Introduction of Ability Knowledge Point 4
Comprehensive training
Integrated knowledge module three transistor arc welding inverter
Structure principle of 1 transistor arc welding inverter
Ability knowledge point 2 forms of main circuit and control drive circuit of frequency converter
Ability knowledge point 3 Characteristics and product introduction of transistor arc welding inverter
Comprehensive training
Integrated knowledge module four field effect tube arc welding inverter
The main composition and basic working principle of the ability knowledge point 1
Ability knowledge point 2 inverter main circuit
Features and Typical Product Introduction of Ability Knowledge Point 3
Comprehensive training
Integrated knowledge module five IGBT arc welding inverter
The main composition and basic working principle of the ability knowledge point 1
Classification, Application and Typical Product Introduction of Ability Knowledge Point 2
Comprehensive training
Brief introduction of six soft-switching arc welding inverter based on comprehensive knowledge module
Basic form and working principle of 1 soft switching inverter main circuit
Ability knowledge point 2 Application and products of soft-switching arc welding inverter
Unit summary
Unit 7 Selection and use of arc welding power supply-
Selection of single arc welding power source based on comprehensive knowledge module
Ability knowledge point 1 Choose arc welding power source according to the type of welding current.
Ability knowledge point 2 Choose arc welding power source according to welding process method.
Ability knowledge point 3 Choose the arc welding power supply according to the power of the arc welding power supply.
Ability knowledge point 4 Choose arc welding power source according to working conditions and energy saving requirements.
Comprehensive training
Selection and installation of double arc welding power supply accessories based on comprehensive knowledge module
1 Selection of accessories for arc welding power supply.
Ability knowledge point 2 Installation of arc welding power supply
Comprehensive training
Application of three-arc welding power supply based on comprehensive knowledge module
Ability knowledge points 1 common sense of use and maintenance
Ability knowledge point 2 series and parallel use of arc welding power supply
Ability knowledge point 3 Modification of arc welding power supply
Comprehensive training
Comprehensive knowledge module 4 saves electricity and uses electricity safely.
Ability knowledge point 1 power saving.
Ability knowledge point 2 Safe use of electricity
Comprehensive training
Unit summary
appendix
Appendix A Model Compilation Method of Electric Welding Machine
Appendix b main technical data of common arc welding power supply
refer to
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