Under water welding pdf

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INTRODUCTION

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• Underwater welding is an important tool for underwater fabrication works.

• In 1946, special waterproof electrodes were developed in Holland by ‘Vander Willingen'’. 

• In recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being installed significantly.

Contents

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1. Introduction
2. Classification
3. Wet Welding
4. Dry Welding
5. Advantages 
6. Disadvantages
7. Schematic Diagram of Apparatus Required
8. Risks
9. Applications

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