在线一本码道高清

Position: Home > Book Manual > Data Download > Metal Technology > Introduction and Improvement of TIG Welding Second Edition

Introduction and Improvement of TIG Welding Second Edition

Bookmark this page
  • Data size: 67.25 MB
  • Data language: Chinese version
  • Document format: PDF document
  • Data Category: Metal Craft
This site recommends:
Related Information:
Related instructions:
Introduction and Improvement of TIG Welding Second Edition Publication Time: 2012 Edition Introduction "Introduction and Improvement of TIG Welding (Second Edition)" focuses on the basic knowledge and operation methods of tungsten argon arc welding (GTAW), and Practical technologies such as welding of metal materials and welding of non-ferrous metal materials, analyze the application of tungsten arc welding, and also explain the welding process assessment, welder examination requirements, etc., the application technology is relatively comprehensive. "Introduction and Improvement of TIG Welding Technology (2nd Edition)" focuses on the practical skills of junior workers, taking into account the learning and improvement of junior and intermediate welders, and mostly explains the principles and operating skills in a graphical way, easy to understand, and combines frequent contact The practical techniques of argon arc welding, welding of aluminum and aluminum alloys, welding of dissimilar metal materials, and welding of dissimilar non-ferrous metals, etc., have comprehensively explained the theory and practical operation skills, highlighting the practicality of welding. "Introduction and Improvement of TIG Welding Technology (2nd Edition)" is suitable for self-learning and improvement of junior, intermediate and senior welders.
Chapter 1 Basic Knowledge of TIG Welding 1
1? 1 TIG welding overview 2
1? 1? 1GTAW arc structure and characteristics 2
Formation of 1? 1? 2 Argon 5
1? 1? 3 Ionization of gas 8
Protective effect of 1? 1? 4 gas 9
1? 1? 5 Arc stiffness 12
1? 2GTAW welding features 13
1 ~ 3GTAW welding power type and polarity 14
1? 4 Basic operation method of manual tungsten arc welding 16
1? 5 Droplet transfer characteristics of argon arc welding 18
Process parameters and operation process of 1 ~ 6 manual tungsten arc welding 19
1? 6? 1 electrode 19
1? 6? 2 Nozzle 20
1? 6? 3 Welding speed 21
1? 6? 4 joint form and weldment structure 21
1? 7 Arc Blew and Stability Measures 21
Chapter 2 TIG Welding Equipment 23
Classification and characteristics of 2? 1 tungsten arc welding equipment 24
Composition of 2? 1? 1 Tungsten Arc Welding Equipment 24
Features of 2? 1? 2 Tungsten Arc Welding Equipment 24
2? 2 TIG welding power supply 26
2? 2? 1 AC Tungsten Arc Welder 26
2? 2? 2 DC Tungsten Arc Welder 30
2? 2? 3 Inverter DC Tig Welder 35
2? 2? 4 Pulse Tungsten Arc Welder 39
2? 3 Manual Tungsten Arc Welding Torch 42
The role and requirements of 2? 3? 1 welding guns 42
Classification and structure of 2? 3? 2 welding torches 42
2? 4 air supply system 44
2? 4? 1 Argon cylinder 44
2? 4? 2 pressure reducer 44
2? 4? 3 gas flowmeter 45
2? 4? 4 solenoid valve 45
2 ~ 5 water cooling system and wire feeding mechanism 45
2? 5? 1 water cooling system 45
2? 5? 2 wire feeding mechanism 46
2? 6 Special protection device 46
2? 6? 1 Flat docking front protection 46
2? 6? 2 Flat Docking Back Protection 47
2? 6? 3 Small diameter pipe butt protection 48
Chapter 3 TIG Welding Filler Wires 49
General knowledge of 3? 1 argon arc welding wire 50
Classification of 3? 1? 1 welding wire 51
Selection principle of 3? 1? 2 welding wire 52
3? 2 carbon steel and low alloy steel welding wire 52
3? 2? 1 solid wire grade 53
3? 2? 2 Flux Cored Wire Grade 53
Model 3? 2? 3 wire 53
3? 3 stainless steel welding wire 59
3? 3? 1 stainless steel solid welding wire 59
3? 3? 2 stainless steel flux cored wire 61
Non-ferrous metal welding wire 62
3? 4? 1 aluminum and aluminum alloy welding wire 62
3? 4? 2 titanium and titanium alloy welding wire 63
3? 4? 3 nickel and nickel alloy welding wire 65
3? 4? 4 copper and copper alloy welding wire 65
3? 4? 5 magnesium wire 67
3? 5 Melt Pad 67
Precautions for using 3 to 6 wires 68
Chapter 4 Tungsten Electrodes and Shielding Gases 71
4? 1 tungsten electrode 72
Models and characteristics of 4? 1? 1 tungsten electrodes 72
Allowable current and arc voltage of 4? 1? 2 tungsten electrode 74
Shape and Preparation of 4? 1? 3 Tungsten Electrode 75
Selection of 4? 1? 4 tungsten electrode 77
4? 2 protective gas 78
4? 2? 1 Argon 78
4? 2? 2 Helium 79
4? 2? 3 mixed gas 80
Chapter 5 Weld Bevel, Cleaning Before Welding, and Gas Protection 83
5? 1 welding groove 84
5? 1? 1 Butt joint groove 84
5? 1? 2T-shaped joint and groove 85
5? 1? 3 corner joint and groove 86
5? 2 Cleaning before welding 86
5? 2? 1 Mechanical Cleaning Method 86
5? 2? 2 Chemical Cleaning Method 87
5? 3 gas protection 91
Chapter 6 Selection of Welding Process Parameters 95
6? 1 welding conditions 96
6? 2 wire diameter 97
6? 3 tungsten pole diameter and tip shape 98
6? 4 welding current 99
6 to 5 nozzle diameter 100
6 to 6 gas flow 101
6? 7 welding speed 102
6? 8 Preheat and interlayer temperature 102
6-9 welding sequence 103
6? 10 nozzle to workpiece distance and arc length 103
6? 11 Tungsten pole extension length 104
Chapter 7: Getting Started with Basic Operating Techniques 105
7? 1 pilot arc 106
7? 1? 1 contact short-circuit arcing 106
7? 1? 2 High frequency high voltage pilot arc 106
7? 1? 3 High-voltage pulse ignition arc 107
7? 2 Manual GTAW torch holding method 108
7? 3 Manual GTAW wire holding method 108
7? 4 Manual GTAW wire feeding method 109
7? 4? 1 continuous wire feeding 109
7? 4? 2 intermittent wire feed 110
7? 4? 3 universal wire feed 110
7? 4? 4Welding wire close to the groove or blunt edge
7? 4? 5 Precautions for Wire Feeding 111
7 ~ 5 welding torch moving method 112
7? 5? 1 Left welding method 113
7? 5? 2 Right Welding 113
7? 5? 3 torch movement form 113
7? 5? 4 rocker welding (arc jump method) 115
Filling position of 7 to 6 wire 116
7? 6? 1 Outer filling method 116
7? 6? 2 wire filling method 117
7? 6? 3Issue 118
7? 6? 4 welding wire continued method 119
7? 6? 5 Double-sided simultaneous welding method 120
7? 7 connector and arc closing 121
7? 7? 1 connector 121
7? 7? 2 End arc 122
Chapter 8 Manual GTAW Getting Started Operation Skills 123
8? 1 flat welding 124
8? 1? 1 Flat welding on stainless steel plate 124
8? 1? 2 Flat welding on aluminum plate 126
8? 2 flat butt welding 128
8 to 3 fillet welding 130
8? 4 Weld Joint 133
8? 5 essentials of welding operations in various positions 134
8? 5? 1 Flat welding (1G) operation methods 135
8? 5? 2 horizontal welding (2G and 2R) operating methods 136
8? 5? 3 Vertical Welding (3G) Operation Essentials 137
8? 5? 4 Overhead welding (4G) operation methods 138
8? 5? 5 pipe horizontal fixed and 45 ° fixed welding (5G and 6G) operating methods 138
8? 6GTAW underlay technology 140
8? 6? 1 Operation method 140
8? 6? 2 primer welding process 142
8? 6? 3 Precautions for Underwelding 144
8? 7 Common welding defects and prevention 147
Chapter 9 GTAW Welding of Common Metal Materials
9? 1 carbon steel 154
Operation Points for 9? 1? 1 Low Carbon Steel Butt Welding 154
9? 1? 2 welding operation process 155
9? 1? 3 Welding 156
9? 2 low alloy steel 158
Welding of 9? 2? 1 low alloy high strength steel 159
Welding of 9? 2? 2 low alloy corrosion resistant steel 160
Welding of 9? 2? 3 low temperature steel 162
9? 3 pearlite heat-resistant steel 168
9? 3? 1 Requirements for heat-resistant steel 168
Chemical composition of 9? 3? 2 chromium molybdenum pearlite heat-resistant steel 170
Welding characteristics of 9? 3? 3 chromium molybdenum pearlite heat-resistant steel 170
Welding material selection for 9? 3? 4 chromium molybdenum medium temperature steel 170
Key points of welding process for 9? 3? 5 chromium molybdenum medium temperature steel 170
9? 4 Martensitic heat-resistant steel 173
Key points for welding 9? 4? 1 martensitic heat resistant steel 174
Heat treatment of 9? 4? 2 martensitic heat-resistant steel 175
Chapter 10 Welding of Stainless Steel 178
Classification and characteristics of 10? 1 stainless steel 178
10? 1? 1 martensitic stainless steel 178
10? 1? 2 ferritic and semi-ferritic or semi-martensitic stainless steel 179
10? 1? 3 austenite and austenite? Ferritic stainless steel 181
Weldability of 10? 2 austenitic stainless steel 182
10? 2? 1 Intergranular corrosion 183
10? 2? 2 Knife corrosion 183
10? 2? 3 Stress corrosion 185
10? 2? 4 thermal crack 186
10? 2? 5Hot embrittlement187
10? 2? 6 alloy element burned 188
10? 3 Austenitic stainless steel welding material selection 188
Welding process of 10? 4 austenitic stainless steel 189
10? 4? 1 Preparation before welding 189
10? 4? 2 Weldment Assembly and Positioning 190
10? 4? 3 Welding 190
Post-weld heat treatment of 10-5 austenitic stainless steel 193
Chapter 11 Welding of Aluminum and Aluminum Alloys
11? 1 Classification and grades of aluminum and aluminum alloy materials 196
11? 1? 1 Classification of aluminum and aluminum alloy materials 196
11? 1? 2 Aluminium and aluminum alloy material designation (code)
11? 2 aluminum and aluminum alloy performance 201
11? 2? 1 Aluminum and aluminum alloy performance and application characteristics 201
Weldability of 11? 2? 2 aluminum and aluminum alloy 204
11? 3 Preparation before welding 209
11? 3? 1 joint form and welding groove 209
11? 3? 2 Cleaning before welding 210
11? 3? 3 Assembly 213
11? 4 welding materials 213
11? 5 Manual Tungsten Arc Welding Process 218
11? 5? 1 Preheat 218
11? 5? 2 welding process parameters 220
11? 6 Basic Operation Skills
11? 6? 1 pilot arc 226
11? 6? 2 Arc transport and wire feeding 226
11? 6? 3 Arc stop 228
11? 6? 4 Arc 228
11? 6? 5 tack welding 229
11? 7 Welding in various positions 229
Welding of 11? 7? 1 plates 230
11? 7? 2 Welding of pipes 232
Chapter 12 GTAW Welding of Nonferrous Metals 235
12? 1 nickel and nickel alloys 236
Welding characteristics of 12? 1? 1 nickel and nickel alloys 236
12? 1? 2 Nickel and nickel alloy welding material selection 237
12? 1? 3 Nickel and nickel alloy welding process 238
12? 2 magnesium and magnesium alloys 239
12? 3 copper and copper alloy 240
12? 3? 1 Welding characteristics of copper and copper alloys 241
12? 3? 2 copper welding 242
Welding of 12? 3? 3 brass 245
12? 3? 4 Bronze Welding 247
12? 4 titanium and titanium alloy 250
12 to 5 zirconium and zirconium alloy 252
Chapter 13 GTAW Application Examples 255
13? 1 pipe installation manual GTAW primer welding 256
13? 215CrMo steel pipe full position GTAW welding 260
Manual Tungsten Arc Welding for 13? 3 Styrene Steam Furnace Tubes 261
Weldability analysis of 13? 3? 1HK40 and P22 steel 261
13? 3? 2 Welding method and material selection 262
13? 3? 3 welding process qualification 263
13? 3? 4 Welder Exam 265
On-site welding of 13? 3? 5 furnace tubes 265
GTAW welding of 13? 4 phosphorus deoxidized copper 265
13? 4? 1 welding process and performance 266
13? 4? 2 Causes and prevention of welding defects 268
13 ~ 5 carbon steel flange and copper tube argon arc welding 270
13? 5? 1 Solderability Analysis 270
13? 5? 2 Welding process 271
13? 5? 3 Quality inspection of welded joints 273
GTAW welding of 13? 6 stainless steel sheet 273
Analysis of Welding Process of 13? 6? 1 Stainless Steel Sheet 273
Essentials of Tungsten Arc Welding for 13? 6? 2 Stainless Steel Sheets
13? 6? 3 Conclusion 278
GTAW welding of 13? 7 pure nickel evaporator 278
13? 7? 1 evaporator material and structure 278
13? 7? 2 Construction site environment 279
13? 7? 3 Preparation before welding 280
13? 7? 4 Welding process 282
13? 7? 5 Post-weld inspection 283
13? 7? 6 Conclusion 283
TIG welding of 13? 8Q235 steel and TA2 titanium composite plate 284
Analysis of welding performance of 13? 8? 1 steel / titanium composite plate 284
Design of welded joints for 13? 8? 2 steel / titanium composite plate 285
13? 8? 3 Welding material selection 286
13? 8? 4 Preparation before welding 287
13? 8? 5 Welding 287
13? 8? 6 Post-weld inspection 288
13? 8? 7 Conclusion 289
13? 9000Cr26Mo1 GTAW welding of high purity ferritic stainless steel 289
13? 9? 1 Material Performance Analysis 289
13? 9? 2 Welding test 291
13? 9? 3 Welding process 291
13? 9? 4 weld quality inspection requirements 292
13? 9? 5 Conclusion 294
13 ~ 10 argon arc surfacing aluminum bronze 294 on 42CrMo steel shaft
13? 10? 1 Weldability analysis 295
13? 10? 2 overlay welding process 296
13? 10? 3 Conclusion 298
Chapter 14 Welding Quality Inspection
14? 1 Nondestructive Testing 301
14? 1? 1 ray detection 302
14? 1? 2 Ultrasonic testing 303
14? 1? 3 magnetic particle detection 304
14? 1? 4 Penetration detection 305
14? 1? 5 Eddy current detection 307
14? 1? 6 acoustic emission detection 307
14? 2 Tensile test of welded joints 308
14? 2? 1 Tensile test for welded joints (GB 2651) 308
14? 2? 2 Tensile test of weld and deposited metal (GB 2652) 309
14? 3 Bend test for welded joints (GB 2653) 310
14? 3? 1 Type of bending test 310
14? 3? 2 Sample size for bending test 311
14? 3? 3 Test method 313
14? 3? 4 Passing indicator 314
14? 4 Impact test of welded joint (GB 2650) 314
14? 4? 1 Test specimen 315
Interception of 14? 4? 2 impact specimens 315
Preparation of 14? 4? 3 samples 317
14-5 Hardness test for welded joints (GB 2654) 317
14-6 Intergranular corrosion resistance test of welded joint 318
14? 6? 1 stainless steel 10% (volume fraction) oxalic acid etching test method (GB 4334? 1) 318
14? 6? 2 Sulfate-copper sulfate corrosion test method 319
14? 6? 3Sulfuric acid? Iron sulfate corrosion test method 320
14-64655% nitric acid corrosion test method 320
14? 6? 5 Nitrate? Hydrofluoric acid corrosion test method 321
14 ~ 7 withstand voltage test 321
14? 7? 1 Hydrostatic test 321
14? 7? 2 Air pressure test 322
Chapter 15 Welder Safety Technology 323
15? 1 General Provisions 324
15? 1? 1 Risk factors affecting the safety of welding production 324
15? 1? 2 Harmful factors affecting human health 324
15? 1? 3 welding and cutting operation is a special operation 324
15? 1? 4 Environmental hygiene standards for welding and cutting operations 325
15? 1? 5 General Safety Technology in Welding Operations 326
15? 2 welding safety electricity 327
15? 2? 1 Current harm to human body 327
15? 2? 2 Reasons for welding accidents 328
15? 2? 3 Safety measures to prevent welding contact with electricity 329
15? 3 TIG welding safety technology 330
15? 3? 1 Prevention of high frequency electromagnetic field injury 330
15? 3? 2 Prevention of radiation injury 331
15? 3? 3 Prevention of Arc Light Damage 331
15? 3? 4 Prevention of metal splash burns 333
15? 3? 5 Prevention of welding dust and harmful gas poisoning 334
15? 3? 6 Prevention of fires and explosions 338
15? 3? 7 cylinders safe use 339
15? 3? 8 Prevention of noise damage 341
15-4 Safety Work on Welding and Cutting at Inspection Site 342
15? 4? 1 Pre-welding inspection and safety preparation 342
15? 4? 2 Safety measures before welding and cutting 342
15? 4? 3 Safety inspection after welding and cutting operation 344
15? 4? 4 On-site operation "Ten Do Not Weld" 344
References 346

氩弧焊技术入门与提高第二版 Introduction and Improvement of Tig Welding Technology Second Edition

Download Ranking

Latest information