Welding Section
Dontechcenter provides a full range of welding services for hull structures, pipelines, and components of ship systems in accordance with the requirements of the Russian Maritime Register of Shipping (RMRS) and international standards. All works can be carried out on a slipway, in dry dock, or directly on board the vessel.
Hull welding operations
- • Replacement of external plating and structural framing, installation of decks, platforms, and second bottoms.
- • Welding of internal shell plating, bulkheads, hatch coamings, and hull reinforcements.
- • Elimination of cracks, straightening of dents and buckles, compensation of wear and deformations.
- • Welding preparation: gouging, fitting, cleaning, and geometry inspection.
- • Welding, cladding, edge fusion, and seam restoration.
- • Tightness testing — kerosene, vacuum, and hydraulic methods.
Tanks and shipboard reservoirs
- • Fabrication and repair of integrated and insertable tanks, sea chests, bilge wells, and other ship containers.
- • Welding in confined spaces with subsequent weld inspection and leak testing.
Ship structures
- • Fabrication and repair of hatch covers, doors, foundations, masts, davits, and guardrails.
- • Installation of reinforcements, posts, and embedded frames for equipment mounting.
Pipelines and valves
- • Repair of damaged sections of pipelines of any diameter and purpose.
- • Installation, leak and hydraulic pressure testing, and weld seam inspection.
- • Maintenance and replacement of shutoff valve assemblies with seat and gate defect inspection.
Aluminum structures
- • TIG and MIG welding of aluminum decks, superstructures, and guardrail systems.
- • Thermal deformation zone control, weld cleanup, and restoration of anti-corrosion protection.
Welding quality control
- • Visual and dimensional inspection of welds (VT).
- • Ultrasonic (UT), dye penetrant, and radiographic weld testing.
- • Preparation of non-destructive testing reports in accordance with RS requirements.
All welding operations are performed by certified professionals accredited under the NAKS system and authorized to carry out work under the supervision of RMRS, RCS, and other international classification societies.