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High-pressure gas storage vessels represent one of the largest and fastest-growing markets for advanced composites, particularly for filament-wound carbon fiber composites. Although they are used in self-contained breathing apparatuses and provide oxygen and gas storage on aerospace vehicles, the primary end markets are for storage of liquid propane gas (LPG), compressed natural gas (CNG), renewable natural gas (RNG) and hydrogen gas (H₂).

Filament winding is a specialized technique used in composite manufacturing, involving the precise and automated winding of continuous fibers onto a rotating mandrel or mold. This method allows for the creation of strong and seamless structures, optimizing the alignment and orientation of the fibers to meet specific design requirements. Filament winding is employed in producing cylindrical or conical composite parts, such as pipes, pressure vessels, and aerospace components, enabling engineers to tailor the strength, stiffness, and performance characteristics of the final product.

Processes in composites manufacturing encompass a diverse array of techniques employed to fabricate composite materials. These processes include methods like hand layup, where layers of resin and reinforcement materials are manually placed, and vacuum infusion, where a vacuum draws resin into a preform. Other techniques like compression molding, filament winding, and automated methods such as 3D printing are utilized to create intricate and specialized composite structures. Each process offers unique advantages in terms of precision, scalability, and efficiency, catering to diverse industry needs. As technology advances, newer methods are emerging, promising faster production cycles, reduced waste, and increased customization, driving the evolution of composite manufacturing towards more sophisticated and versatile methodologies.

The wind energy market has long been considered the world’s largest market, by volume, for glass fiber-reinforced polymer (GFRP) composites — and increasingly, carbon fiber composites — as larger turbines and longer wind blades are developed, requiring higher performance, lighter weight materials. The outer skins of wind and tidal turbine blades generally comprise infused, GFRP laminates sandwiching foam core. Inside the blade, rib-like shear webs bonded to spar caps reinforce the structure. Spar caps are often made from GFRP or, as blade lengths lengthen, pultruded carbon fiber for additional strength.

Sany reports that it has adopted an optimized airfoil design with greater thickness and a blunt trailing edge to augment strength and stability.

Typically separate processes, the company’s new vessel winding head (VWH), merged with a multiple tape laying head (MTLH) progresses composite pressure vessel development.

SGL highlights record profits in three out of four businesses despite drop in demand from wind market, looks into declining Carbon Fibers unit as it enters 2024.

JEC World 2024: A pressure vessel for HydroExceed manufactured via a recently delivered multi-spindle filament winder displays Mikrosam’s expertise in filament winding equipment.

Targeting U.S. wind energy, the program backs Purdue’s CMSC center and industry partners to develop the foundation for automated tooling manufacture, supporting new innovations in composite materials, other technology elements.

Disruptive Open Fan aerodynamics and acoustics to be matured over 2024-2028 test plan for design validation of fan blades, aiming for implementation on commercial jet engines by 2030s.

Net sales gains of approximately $522 million were achieved through continued interest in core, prepreg, Corecell and recycled PET foam products, anticipates additional gains with 2024 global footprint.

CAMX 2023: Roth Composite Machinery focuses on automation, safety and time savings.

Wind energy has always been a highly lucrative business for composites fabricators — even 15 years ago. This popular evergreen article from CW gives a new perspective on just how far this end market and its composite wind blades have come.

CAMX 2023: Acrolab features its Isomandrel technology, which redistributes high thermal energy uniformly over the entire filament winding mandrel surface, providing predictable and consistent energy input into the part and removing the need for oven cure.