Learn essential ship welding production skills through a comprehensive course covering marine materials, welding fundamentals, inspection techniques, and hands-on operations. Master mechanical properties of metals, iron-carbon alloy phase diagrams, and heat treatment processes for hull steel and ship materials. Explore welding arc foundations, stress management, and deformation control while practicing various welding methods including electrode arc, submerged arc, and carbon dioxide gas retention welding. Develop expertise in quality inspection through visual, radiographic, ultrasonic, magnetic particle, and penetration testing methods. Gain practical experience with plate butt welding in different positions, submerged arc welding techniques, and carbon dioxide gas shielded welding operations. Apply knowledge through hands-on training in welding quality inspection, including ultrasonic inspection of welded joints, magnetic yoke detection, and solvent removal permeation testing.
Fundamentals of ship welding production（船舶焊接生产基础）
Bohai Ship-building Vocational College via XuetangX
Overview
Syllabus
- 1.Basic knowledge of marine materials
- 1.1 Mechanical properties of metals
- 1.2 Structure and crystallization of metals
- 1.3 Phase diagram of iron carbon alloy
- 1.4 Understanding of steel heat treatment
- 1.5 Hull steel
- 1.6 Cast iron and non-ferrous metals for ships
- 2.Basic knowledge of ship welding
- 2.1 Welding arc foundation
- 2.2 Weld metal composition
- 2.3 Effect of gas on weld metal
- 2.4 Generation of welding stress and deformation
- 2.5 Welding stress
- 2.6 Weld deformation
- 3.Welding method
- 3.1 Electrode arc welding
- 3.2 Submerged arc welding
- 3.3 Carbon dioxide gas retention welding
- 4.Welding quality inspection
- 4.1 Visual testing
- 4.2 Radiographic testing
- 4.3 Ultrasonic testing
- 4.4 Magnetic particle testing
- 4.5 Penetration testing
- 5.Welding operation
- 5.1 Welding rod arc welding plate butt cross welding
- 5.2 Welding rod arc welding plate butt vertical welding
- 5.3 Welding rod arc welding plate butt back welding
- 5.4 Submerged arc welding plate docking skills training
- 5.5 Carbon dioxide gas shielded welding cross welding
- 5.6 Carbon dioxide gas shielded flat welding
- 5.7 Carbon dioxide gas shielded flat welding
- 6.Welding quality inspection operation
- 6.1 Ultrasonic inspection of welded joints
- 6.2 Magnetic yoke detection
- 6.3 Solvent removal permeation testing
- 7.Final exam
Taught by
Xia Jindi, Lu Baoxue, CHENXI, Du Yue, and CHENKAI
