Filament Winding Process

▌Process Principle

Continuous fibers are impregnated with resin and then wound around a mandrel according to a pre-programmed path. The resin and fibers are bonded together through curing by heating. After demolding, cylindrical, rotational, or irregular structures (such as gas cylinders and pipes) are formed.


▌Advantages

Controllable mechanical properties: Fiber orientation can be designed according to the load requirements, maximizing material strength (e.g., hoop winding for gas cylinders to resist internal pressure).
High production efficiency: Automated winding speeds up to 200 m/min, suitable for mass production.

High material utilization: Fiber waste is less than 10%, resulting in relatively controllable costs.


▌Application Fileds

Energy sector: High-pressure hydrogen storage tanks, natural gas cylinders, main spars of wind turbine blades, etc.
Transportation sector: Automotive drive shafts, high-speed rail brake pipes, etc.

Military sector: Missile launch tubes, submarine pressure hulls, etc. 


▌Main Equipment

Winding Machine（Resin Impregnation Device，Tension Controller）, Curing Oven.