Chapter 1 Brief Introduction of Welding Process Design

1. 1 Development of welding technology

1. 1. 1 Development of welding structural materials

1. 1.2 development of welding materials

1. 1.3 development of welding technology

Development of 1. 1.4 welding equipment

1. 1.5 development of welding structure

1.2 the task and importance of welding process work

1.2. 1 definition of welding process

1.2.2 the task of welding process design

1.2.3 Importance of welding technology

1.3 characteristics of modern welding technology

Chapter II Principles of Welding Process Design

2. 1 Overview of welding structure manufacturing process

2. 1. 1 Inspection and management of raw materials and welding materials

2. 1.2 Pretreatment of structural materials

2. 1.3 lofting, marking and marking

2. 1.4 blanking and edge treatment

2. 1.5 forming and bending processing

2. 1.6 assembly and welding

2. 1.7 postweld heat treatment

2. 1.8 Quality inspection of weldments

2. 1.9 Post-treatment of welded parts

2. 1. 10 welding structure painting

2.2 Manufacturing process of typical welded structure

2.2. 1 pressure vessel manufacturing process

2.2.2 Hull Manufacturing Process

2.3 Main contents of welding process design work

2.3. 1 Welding process review of product construction drawing

2.3.2 Formulation of product welding process plan

2.3.3 Testing of new welding materials, new processes and new equipment.

2.3.4 Compilation of procurement specifications for welding equipment and welding materials

2.3.5 Preparation of welding technical conditions for products

2.3.6 Compilation of welding process professional standards

2.3.7 Compilation of welding process specification

2.3.8 Implementation of Welding Procedure Qualification

2.3.9 Production of product weld identification card

2.3. 10 Compilation of other welding process documents

2.4 Working procedures of welding process design

2.4. 1 Compilation of basic welding process design standard

2.4.2 Preparation stage of welding production process design

2.4.3 Welding process test and technical transformation measures implementation stage

2.4.4 Preparation stage of production process documents

2.4.5 welding production process quality monitoring stage

2.4.6 product weld quality inspection stage

Chapter 3 Design of Welded Joints

3. 1 overview

3.2 Basic types of welded joints

3.2. 1 butt joint

Corner joint

3.3 Process Design of Welded Joints

Machinability of welded joints

3.3.2 Accessibility of welded joints

3.3.3 Detectability of welded joints

3.4 Groove design of welded joint

3.4. 1 Basic principles of groove design

3.4.2 Design standard of welding groove

3.5 Welded joint groove standard

3.5. 1 Weld groove and size standard for gas welding, covered electrode arc welding and gas shielded welding.

3.5.2 Basic form and size standard of submerged arc welding groove

3.5.3 Weld groove and size standard of CO2 gas shielded welding.

3.6 Representation of welded joints on design drawings of welded structures

3.6. 1 welding symbol and welding method code

3.6.2 Representation of welded joints on drawings

Welding position code

Chapter 4 Modern Welding Technology and Methods

4. 1 overview

4.2 covered electrode arc welding

4.2. Advantages and disadvantages of1covered electrode arc welding.

4.2.2 Process characteristics of covered electrode arc welding

4.2.3 covered electrode arc welding process parameters.

4.2.4 Welding operation technology

Typical welding parameters

4.3 submerged arc welding

4.3. 1 Advantages and disadvantages of submerged arc welding method

Submerged arc welding technology

4.3.3 Submerged arc welding process parameters

4.3.4 Submerged arc welding operation technology

4.3.5 Typical welding parameters of submerged arc welding

4.4 MIG arc welding

4.4. 1 MIG/MAG welding process characteristics, advantages and disadvantages.

4.4.2 Metal electrode gas shielded welding process

4.4.3 Welding parameters of MIG/MAG welding

4. 4. 4 MIG/MAG welding operation technology

4.4.5 Typical welding parameters of MIG/KIAG welding

4.5 flux-cored wire arc welding

4.5. 1 Advantages and disadvantages of flux-cored arc welding

4.5.2 Flux-cored arc welding process

4.5.3 Welding parameters of flux-cored wire arc welding

4.5.4 Flux-cored wire arc welding operation technology

4.5.5 Welding parameters of flux-cored wire arc welding

4.6 Inert inert gas shielded arc welding

4.6. Advantages and disadvantages of1TIG welding

4.6.2.TIG welding process

4.6.3. Welding parameters of TIG welding

4. 6. 4 TIG welding operation technology

4.6.5. Typical welding parameters of TIG welding

4.7 plasma arc welding

4.7. Advantages and disadvantages of1plasma arc welding

4.7.2 plasma arc welding process

4.7.3 Welding parameters of plasma arc welding

4.7.4 Operation Technology of Plasma Arc Welding

4.7.5 Typical welding parameters of plasma arc welding

4.8 Electroslag Welding

4.8. 1 Advantages and Disadvantages of Electroslag Welding

4.8.2 Electroslag Welding Process Method

4.8.3 Welding parameters of electroslag welding

4.8.4 Operation Technology of Electroslag Welding

4.8.5 Typical welding parameters of electroslag welding

4.9 Electron beam welding

4.9. Advantages and disadvantages of1electron beam welding

4.9.2 Welding technology of giant beam

4.9.3 Electron beam welding parameters

4.9.4 Typical welding parameters of electron beam welding

4. 10 laser welding

4. 1 Advantages and disadvantages of laser welding

4. 10.2 laser welding process

4. 10.3 welding parameters of laser welding

4. 10.4 Typical welding parameters of laser welding

4. 1 1 resistance welding

4. Advantages and disadvantages of11.1resistance welding

4. 1 1.2 resistance welding process

4. 1.3 resistance spot welding process

4. 1 1.4 projection welding process

4. 1 1.5 seam welding process

4. 1 1.6 Welding technology of resistance butt welding

4. 12 stud welding

4. 12. 1 arc stud welding process

4. 12.2 capacitor discharge stud welding

4. 13 friction welding

4. 1 Advantages and disadvantages of friction welding

4. 13.2 Friction welding process

4. 13.3 Friction welding process

4. 14 Selection of welding technology and method

4. 1 Selection principle of welding process and method

4. 14.2 Selection basis of welding technology and method

4. 14.3 example analysis of welding process and method

Chapter V Welding Technology of Metal Materials

5. 1 overview

5.2 Welding process of carbon structural steel

5.2. 1 Basic characteristics of carbon structural steel

5.2.2 Weldability of carbon structural steel

Carbon steel welding material

5.2.4. Key points of carbon steel welding process

5.3 Welding Technology of Low Alloy Structural Steel

5.3. 1 Basic characteristics of low alloy structural steel

5.3.2 Weldability of Low Alloy Structural Steel

5.3.3 Welding materials of low alloy structural steel

5.3.4 Key points of welding process for low alloy steel

5.4 Welding Process of Medium Alloy Steel

Basic characteristics of alloy heat-resistant steel in 5.4. 1

5.4.2 Basic characteristics of medium alloy low temperature steel

5.4.3 Weldability of medium alloy heat-resistant steel

5.4.4 Weldability of Medium Alloy Low Temperature Nickel Steel

5.4.5 medium alloy steel welding material

5.4.6 Key points of welding process for medium alloy steel

5.5 Welding process of high alloy steel

5.5. 1 Basic characteristics of high alloy stainless steel

5.5.2 Weldability of High Alloy Stainless Steel

5.5.3 Basic characteristics of high alloy heat-resistant steel

5.5.4 Weldability of High Alloy Heat Resistant Steel

5.5.5 Basic characteristics of high alloy ultra-high strength steel

5.5.6 Weldability of high alloy ultra-high strength steel

5.5.7 High alloy steel welding materials

5.5.8 Key points of welding process for high alloy steel

Chapter 6 Welding Procedure Specification and Welding Procedure Qualification

6. 1 overview

6.2 welding procedure specification

Definition of welding process specification

Format of welding procedure specification

Contents of welding procedure specification

6.2.4 Programming of welding process specification

6.2.5 Writing method of welding process specification

6.2.6 Applicability and limitation of welding process specification

6.3 Welding Procedure Qualification

Definition of welding procedure qualification

The basis of welding procedure qualification

Welding procedure qualification procedure

6.3.4 Welding Procedure Qualification Rules

Welding parameters.

6.3.6 Welding procedure qualification report

Chapter 7 Welding Procedure Qualification Test

7. 1 overview

7.2 Welding procedure qualification test items and test methods

7.2. 1 boiler and pressure vessel welding procedure qualification test item

7.2.2 Welding procedure qualification test method and evaluation standard

7.2.3 Steel structure welding procedure qualification test items

7.2.4 Test method and evaluation standard for welding procedure evaluation of steel structure

7.3 Example of Welding Procedure Qualification Test

7.3. 1 Example of Process Qualification Test for Welded Joints of Boiler Pressure Components

7.3.2 Test example of welding joint process qualification of pressure vessel

7.3.3 Test example of welding joint process qualification of steel structure

Chapter VIII Example Analysis of Welding Procedure Specification

8. 1 Overview

8.2 Examples and analysis of welding procedure specification for various welding joints of boiler pressure parts

8.2. 1 Example and analysis of welding process specification for boiler drum

8.2.2 Example and analysis of welding procedure specification for boiler header

8.2.3 Example and Analysis of Butt Welding Process Specification for Boiler Heating Surface Fittings

8.3 Examples and analysis of welding procedure specifications for various welded joints of pressure vessels

8.3. 1 Example and analysis of typical welding procedure specification for longitudinal circumferential seam of low carbon steel pressure vessel cylinder

8.3.2 Example and analysis of typical welding procedure for longitudinal girth seam of low alloy high strength steel pressure vessel cylinder.

8.3.3 Examples and analysis of welding procedure specification for welding joint of low alloy heat-resistant steel pressure vessel cylinder.

8.3.4 Examples and analysis of welding procedure specification for welding joint of low-temperature pressure vessel shell

8.3.5 Example and analysis of welding process for longitudinal seam and circumferential seam of stainless steel pressure vessel shell

8.3.6 Example and analysis of welding procedure specification for welding joint of stainless steel composite steel pressure vessel shell

appendix

Appendix A Technical Conditions for Welding Pressure Components of Boiler

Appendix B General Welding Procedure Standard (Welding Procedure Guide)

Appendix c American standard welding procedure specification

refer to