SEAWORKS (Vanuatu), Main Street, Nambatu, P.O. Box 3242 Port Vila – Phone +678 7100 230 (WhatsApp)
SEAWORKS (New Caledonia), BP 7036 – 98801 Noumea Cedex – Phone +687 87 55 05
We operate throughout Oceania Islands, with the capacity to stay working at remote locations
In-Water
WELDING - CUTTING - GOUGING - GRINDING
ABC Diving performs DRY and WET Welding & Underwater Cutting systems by a very productive way, even with poor visibility condition.
Our skilled and experienced divers are able to crop corroded/pitted bottom shell plating and DRY-WELD on-site new steel plate inserts whilst the vessel is afloat. Such renewals are to class requirements, are a permanent repair and can save valuable time and money outside the dry-dock.
WET WELDING and/or CUTTING can be carried out efficiently to save valuable time in case of Ship emergency repair and for Civil Engineering Industry.
In order to replace a section of hull plating, the process is the following:
- The initial action is to fit a coffer-dam over the area of interest and secure in place to provide a water-tight enclosure
- Then the area of hull plating is cut out from inside and a piece of new plate produced to exactly fit the resultant opening.
- A Class Approved single side weld procedure is then employed to weld the new plate in place
- Once welded the requisite NDT is carried out
- The hull plating re-coated with Epoxy primer and antifouling paint to preserve the area
- Finally the coffer-dam removed from outboard.
Broken Skeg replacement: we made a new design, stronger than the original one. Wet welding with Broco SoftTouch.
Video : Click here
ABC Diving Ltd and subsidiaries offer afloat repairs to hull plating, fully Class Approved process that allows permanent repair and replacement of damaged areas of hull plating using a single sided welding procedure.
This process can be used for repair of cracks, deformed plate, or even retro-fit of hull mounted equipment.
For welding we use Broco’s Ni-Touch nickel welding electrodes allowing underwater wet welding of carbon and high tensile steels (meet the more stringent requirements of the Navy’s Naval Ship Technical Manual NSTM 074), or SoftTouch electrodes (meet or exceed AWS D3.6-98 specifications for Type B welds – the American Welding Society’s standard for certifying underwater welds – Pass all AWS test requirements, including radiography, bends and hardness).
Broco systems include mild steel, nickel and stainless steel electrodes.
Nickel electrode produces welds with less porosity and allows deeper welding in the overhead position. Ni-Touch™ electrode is appropriate for all position groove and fillet welds.
Sacrificial anodes Underwater Welding
Underwater CUTTING
30 years ago...
A challenge.
Ultrathermic Cutting Rods Today... So easy and effective!
In-Water Sheet piles cutting with Ultrathermic Cutting Rods and underwater chain saw, Flexible Linear Shaped Explosive cutting.
We also operate Stanley U/W DS11 Diamond Chain Saw capable to cut concrete (including wire or rebar reinforced), brick, concrete block, masonry or stone.
Underwater GRINDING
Stanley GR 29 (2700 rpm @ 10 gpm) is easily handled by divers
ABC Diving Ltd can inspect and replace “In-Water” all sacrificial anodes.
