La tecnologia sottomarina e il suo utilizzo di viti, dadi, bulloni e dispositivi di fissaggio in polimeri

Collezione: La tecnologia sottomarina e il suo utilizzo di viti, dadi, bulloni e dispositivi di fissaggio in polimeri

How are polymer fasteners suited to the subsea sector?


Polymer fasteners are well-suited to the subsea sector because they are inherently resistant to corrosion, which is a significant challenge in underwater environments. Unlike metal fasteners, which can corrode rapidly when exposed to saltwater and marine conditions, polymers maintain their integrity over extended periods. They are used to secure components in subsea equipment, such as ROVs (Remotely Operated Vehicles), underwater sensors, and pipelines, where exposure to high pressures and corrosive seawater is constant. Additionally, polymer fasteners are lightweight, reducing the overall weight of subsea structures and improving buoyancy, which is crucial for manoeuvrability and deployment in deep-sea operations.

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Which polymer fasteners are best suited to the subsea sector?


PEEK and PTFE fasteners are among the best-suited polymers for the subsea sector due to their superior mechanical properties and chemical resistance. PEEK fasteners offer exceptional strength and can endure the high-pressure environments found at great ocean depths. They also resist the corrosive effects of saltwater and chemicals used in subsea applications, making them ideal for securing critical components in underwater equipment. PTFE fasteners are valued for their excellent chemical resistance and low friction properties. They are often used in applications where fasteners come into contact with moving parts or aggressive fluids, providing durability and reliability in the harsh subsea environment.

Why are polymer materials well suited to the subsea industry?


Polymer materials are well-suited to the subsea industry due to their ability to resist corrosion, chemical exposure, and the mechanical stresses of underwater environments. They do not rust or degrade in saltwater, unlike metal fasteners, which ensures the long-term functionality of subsea equipment. Polymers like PEEK and PTFE can also withstand extreme pressure and temperature fluctuations encountered at various ocean depths, maintaining their structural integrity and performance. Their lightweight nature contributes to easier deployment and manoeuvrability of subsea equipment, while their non-conductive properties prevent electrical interference in sensitive electronic systems used in underwater exploration and monitoring.

Il settore sottomarino, che comprende industrie come il petrolio e il gas offshore, l'energia rinnovabile (come i parchi eolici) e l'esplorazione in acque profonde, opera in ambienti subacquei estremi che richiedono materiali robusti e resistenti alla corrosione. I dispositivi di fissaggio in polimeri sono diventati sempre più importanti in questo settore grazie alle loro proprietà di leggerezza, elevata resistenza alla corrosione e capacità di sopportare pressioni elevate e condizioni difficili. A differenza dei tradizionali elementi di fissaggio in metallo, i polimeri, in particolare i tecnopolimeri avanzati come il PEEK (Polietereterchetone), non sono conduttivi e riducono il rischio di corrosione galvanica quando vengono utilizzati insieme ad altri materiali. Il loro utilizzo contribuisce a migliorare la longevità e le prestazioni delle infrastrutture sottomarine, riducendo al contempo i costi di manutenzione.