The invention discloses an
optical fiber vacuum coating process, and relates to the technical field of
optical fiber coating, and the
optical fiber vacuum coating process comprises the following steps: S1, optical
fiber surface pretreatment, S2,
coating, S3, post-treatment, and S4,
welding treatment. Comprising an optical
fiber preprocessing cylinder, a preprocessing unit, an optical
fiber coarsening
assembly and an activating
processing unit are integrated in the optical fiber preprocessing cylinder, and 360-degree uniform
processing of the surface of an optical fiber is achieved by driving the cylinder to rotate through a driving motor; the modularized coarsening
assembly adopts a replaceable coarsening piece, and is matched with a T-shaped driving screw rod to adjust the
contact pressure so as to adapt to synchronous
processing of a plurality of optical fibers with different sizes; the adjustable driving rollers adjust the distance through worm gear-worm transmission, so that stable conveying of the optical fibers is ensured; and the final
treatment unit realizes surface residue-free
drying through a nano cleaning block and a hot air box. According to the invention, mechanical coarsening and chemical activation synergistically enhance the
coating adhesive force, and multi-stage cleaning and
modular design are combined, so that the
process efficiency, the surface quality and the equipment adaptability are remarkably improved, and the method is suitable for high-precision optical
fiber coating production.