Forming device and forming method of high-temperature-resistant low-temperature-resistant high-toughness cable

Through the dual-matrix synergistic system of hydrogenated nitrile rubber and polyether thermoplastic polyurethane and dynamic vulcanization cross-linking technology, the brittleness and softening problems of traditional oil drilling platform cables under extreme temperatures are solved, high durability and chemical stability are achieved, and the long-term reliability and safety requirements of the oil platform drag chain system are met.

CN120708980APending Publication Date: 2025-09-26ZHEJIANG YUANTONG WIRE & CABLE MFG CO LTD
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Patent Information

Application Number
CN202510883195.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-28
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

Traditional oil drilling platform cables are prone to brittle fracture or softening and deformation in extreme high and low temperature environments. They are not able to withstand sufficient bending times, and their protection system lacks chemical stability and anti-aging design, resulting in a short service life. They are unable to meet the weather resistance, fatigue resistance and long-term reliability requirements of the oil platform drag chain system.

Method used

A dual-matrix synergistic system of hydrogenated nitrile rubber and polyether thermoplastic polyurethane is adopted, combined with dynamic vulcanization cross-linking technology. A high-density cross-linked network is formed through the three-dimensional reinforced network of nano-silica and carbon nanotubes and the mechanical support of aramid short fibers. In combination with perfluoropolyether surface modifier and composite anti-aging system, a step vulcanization process is used to optimize the molecular chain cross-linking density, and surface atomization treatment is performed.

Benefits of technology

The cable has achieved excellent flexibility and tear resistance in a wide temperature range of -60℃ to 125℃, with a bending resistance of more than 30 million times. It has stable protection in strong acid, strong alkali, salt spray and oily environments, reduced surface gloss and enhanced wear resistance, meeting the stringent requirements of oil drilling platforms.

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Abstract

The invention discloses a forming device and a forming method of a high-temperature-resistant low-temperature-resistant high-toughness cable. According to the invention, based on a double-substrate synergistic system of hydrogenated nitrile rubber and polyether type thermoplastic polyurethane, and in combination with a dynamic vulcanization crosslinking technology, the cable keeps excellent flexibility and tear resistance in a wide temperature range of-60 DEG C to 125 DEG C. A three-dimensional reinforced network of nano silicon dioxide and carbon nanotubes is directionally dispersed in a matrix, and mechanical support of aramid short fibers is matched, so that the cable is endowed with bending fatigue resistance, the durability of the drag chain cable in a high-frequency torsion scene of an oil platform exceeds 30 million cycles is realized, and the service life of the drag chain cable is prolonged. The problem of breakage caused by low-temperature embrittlement and high-temperature softening of a traditional cable is fundamentally solved, the synergistic effect of the perfluoropolyether surface modifier and the composite anti-aging system enables the cable to form a stable protective layer in strong acid, strong alkali, salt mist and oil stain environments, and chemical corrosion and ultraviolet irradiation are effectively resisted.
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