Shipbuilding Welding & Cutting Solutions

Focusing on three critical scenarios in shipbuilding — longitudinal stiffener welding on shell plates, circumferential seam welding during grand block assembly, and precision cutting of thick plates — we offer full-process upgrades to enhance welding efficiency and cutting precision, setting new industry benchmarks.

Typical Condition:

Continuous fillet welding between curved fore/aft shell plates and T-type stiffeners; cumulative weld length exceeds 25 km per vessel.

Industry Pain Points:

● Manual welding shows weld penetration fluctuation of ±15%, leading to a >22% failure rate in IACS UR W11 fatigue tests.

● Traditional welding speeds are limited to 0.4 m/min, consuming over 35% of total hull construction time.

AUTO MIG 36 (Primary Automated Option)

Cooling: Gas Cooled

Duty Cycle: 60% — 340A (CO₂), 300A (Mixed Gas)

Wire Size: Φ0.8–1.6 mm

MIG 24 (Handheld MIG Gun for narrow spaces and curved areas such as fore hull plates)

Cooling: Gas Cooled

Duty Cycle: 60% — 250A (CO₂), 220A (Mixed Gas)

Wire Size: Φ0.8–1.2 mm

Typical Condition:

Welding of circumferential seams between cargo and engine room sections; plate thickness ranges from 40–60 mm (DH36/EH40 high-strength steels).

Industry Pain Points:

● Accumulated heat from manual multi-pass welding causes excessive distortion (>5mm/m), with flame correction costs reaching ¥800 per meter.

● Precise heat input control required (≤2.5 kJ/mm) to prevent welding-induced deformation.

AUTO MIG 500 (Primary Automated Option)

Cooling: Water Cooled

Duty Cycle: 100% — 500A (CO₂), 450A (Mixed Gas)

Wire Size: Φ0.8–1.6 mm

MIG 36 (Heavy-Duty Handheld MIG Gun for local repairs)

Cooling: Gas Cooled

Duty Cycle: 60% — 180A (CO₂), 150A (Mixed Gas)

Wire Size: Φ0.8–1.6 mm

Typical Condition:

Three-dimensional cutting of 20–50mm EH36 shell plates, requiring simultaneous bevel processing.

Industry Pain Points:

● Traditional flame cutting produces a heat-affected zone (HAZ) of 6–8 mm, reducing cold bending performance by 40%.

● Manual cutting inaccuracies lead to assembly gaps >3 mm between segments, increasing the risk of welding deformation.

PLASMA IPW350

Current: 350A WITH HF

Duty Cycle: 100%

Gas Pressure: 3.5 Bar

Plasma Gas Flow: Ar 1~5 L/min

Protection Gas Flow: H2/He 5~20 L/min

Weldable Material Thickness: 0.5~12mm