Flexible Pipeline Systems

Corrugated metal hoses (often referred to simply as bellows) are essential flexible conduits in modern industrial piping. These components act as critical elements for compensation, sealing, connection, and vibration reduction. They are widely deployed in high-stakes fields including aerospace, petrochemicals, shipbuilding, medical technology, and energy construction.

A standard metal hose consists of a thin-walled stainless steel inner bellows, an outer protective mesh set (braided from wire or steel strips), and various end fittings such as flanges or threaded heads. To meet the latest national standards like GB/T14525-2010, these hoses must withstand extreme temperatures ranging from -196℃ to +420℃ and pressures up to 42.0 MPa.

Industrial Manufacturing Hurdles:

• Complex Multi-Layer Structure: Welding the bellows, mesh set, and compression sleeve together is technically difficult due to poor assembly repeatability and the unstable nature of the layered materials.
• Extreme Heat Sensitivity: Because these are thin-walled components, they are highly sensitive to welding line energy; even minor deviations in heat input can lead to catastrophic burn-through or leakage.
• Significant Thickness Disparity: There is often a large difference in thickness between the flexible hose body and the rigid end fittings (flanges or silk heads), making it hard to maintain ideal welding angles and seam formation.
• Precision Synchronization: High-quality results require the perfect synchronization of welding current and voltage with the filler wire amount, a task that is nearly impossible to maintain consistently through manual labor.
• Operational Defects: Manual welding frequently suffers from inconsistent quality, leading to weld cracking, poor sealing, and high rework rates that damage product competitiveness.

• 50%+ Productivity Boost: Automated systems have allowed manufacturers to increase welding efficiency by over 50% compared to manual processes.
• Zero-Defect Quality: Real-time tracking and energy control have completely eliminated common defects like burn-through and leakage.
• Broad Operational Range: Products welded with our technology reliably handle extreme pressure (up to 42 MPa) and temperature gradients.
• Lowered Labor Barriers: Automation allows general operators to produce professional welds after short-term training, reducing the heavy reliance on elite, high-cost welding technicians.
• Enhanced Competitiveness: Shorter production cycles and higher factory pass rates have enabled clients to capture larger shares of the high-end industrial market.