[4S/yim214] Underwater Cutting & Welding Manual

NAVSEA S0300-BB-MAN-010
U.S. NAVY UNDERWATER CUTTING & WELDING MANUAL

Ship Salvage, Harbor Clearance and Wreck Removal oftentimes require extensive underwater cutting and welding. The lack of recent fleet experience in these areas dictates the need for a manual that incorporates state of the art equipment and tried and proven underwater cutting and welding techniques. The knowledge contained in this manual is a collection of fleet and commercial experience. It has been reviewed by technical experts with extensive salvage and underwater cutting and welding experience. This revision of the Underwater Cutting and Welding Manual has been prepared to provide the most current information on equipment and procedures available. All of the equipment covered may not be found on the Diving Equipment Authorized for Navy Use (ANU) list (NAVSEAINST 10560.2), but is included in this manual as an aid to the salvor who finds himself in a “must get the job done” situation.

Contents
1 INTRODUCTION [SCOPE - UNDERWATER CUTTING OVERVIEW - UNDERWATER WELDING OVERVIEW]
2. UNDERWATER CUTTING
INTRODUCTION
OXYGEN-ARC CUTTING (Principles of Operation - Steel-Tubular Electrodes - Advantages of the Steel-Tubular Electrodes - Disadvantages of the Steel-Tubular Electrode - Electrode Amperage Requirements - Oxygen Requirements - Material Consumption - Oxygen Pressure - Oxygen Purity - Grounding the Work Steel-Tubular - Electrode Cutting Technique (Thick plate) Steel-Tubular - Electrode Cutting Technique (Thin plate) Piercing Holes in Steel Plate Steel-Tubular - Electrode Cutting Technique (Cast Iron and Non-Ferrous Metals) - Post-dive Maintenance)
EXOTHERMIC ELECTRODES (Electrode Amperage Requirements - Oxygen Requirements - Material Consumption - Advantages and Disadvantages of the Exothermic Electrode Cutting Process - Disadvantages of Exothermic Electrodes - Grounding the Work - Exothermic Cutting Technique - Exothermic Cutting Technique (Cast Iron, Stainless Steel and Non-Ferrous Metals) - Exothermic Cutting Technique (Concrete, Rock and other Non-Conductive Materials) - Exothermic Hole Piercing Trouble Shooting - Symptoms Probable Causes Locating and Solving the Problem - Post-Dive Maintenance)
SEELER ENTERPRISES LU-001 EXOTHERMIC CUTTING TOOL (KERIE CABLE) (Advantages and Disadvantages of the of the Kerie Cable - Materials Required for Kerie Cable Cutting Equipment - Set-up Kerie Cable Preparation - Cutting Underwater - Cutting Technique - Cutting Thin Metals - Cutting Thick Metals - Re-Lighting Cable Underwater - Emergency Off Safety Procedures - Loss of Communications Equipment - Tender Electrical Precautions - Post-Dive Maintenance)
SHIELDED METAL ARC CUTTING (Principles of Operation Materials - Waterproofing Electrodes - Underwater Shielded Metal-Arc Cutting Techniques- Drag Technique)
CONCLUSION

3. UNDERWATER WELDING
...

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