Eight items of attention on the process parameters of optical fiber tape control

AddTime£º06-10-2016   Author£ºadmin

A: with the release of tension and release of tension (50 ~ 60+5) g, and the consistency of the line tension has very strict requirements, must ensure that each fiber line received equal tension, otherwise the belt will appear after the fiber attenuation increase phenomenon. Each root is subject to the same tension, can be due to the inspection and evaluation of the fiber has been. Can be the most simple method, the optical fiber belt if km, flat is placed on the floor or hung vertically and, if the fiber band can be placed flat, the tension control, if the optical fiber with a curl anomaly, is proved with fiber belt tension is inconsistent, tension control is the key technology and.

Two, in addition to static methods: with due process, light soldering operation at high speed, the surface electrostatic, fiber will attract each other are twisted together, seriously affecting the fiber arrangement location in the mold, caused by the flatness is not up to the requirements, therefore, in order to remove static electricity needs in optical fiber on the two wheel an antistatic device assembly.

Three, the production line speed: the speed of the production line is mainly based on the performance of the coating material, UV lamp power and quantity, typewriter speed and equipment to adjust the speed limit. Such as the 12 core the whole spectrum of single-mode fiber, in order to facilitate the identification of these fibers, the outer surface of the coating to print mark, from the first layer to the 12 layer optical fiber with surface print "12B1-1", "12B1-2", to "12B1-11", "12B1-12", print each cycle for distance is 200mm. To ensure the correct and clear guide words, production speed should not exceed 300M/min. For example: when using double frequency elliptical reflecting type structure curing furnace, UV lamp function for 2*1000W, the speed of the production line with six core is 100M/min, and the two stage curing released, UV lamp power 4*1000W, the speed of the production line can be brought to the 200M/min.

Four, the diameter of the fiber coloring and curing degree requirements: according to the mold size, the diameter of the fiber coloring generally below 257um, such as the diameter is too large, will make the fiber in the mold by blocking force after the fiber is snapped easily: too small, will affect the flatness of the optical fiber ribbon. The curing of colored fiber in the optical fiber ribbon is more than 90%, such as the degree of fixation is below 90%, the color of the colored tube will appear when the strip is stripped off, resulting in the difficulty in identifying the connection.

Five, the coating of resin and mold temperature: the coating of resin and mold temperature is (45 ~ 60) degrees Celsius, the whole set of mold from the guide die, die, die and die, and each mold processing accuracy requirements are very high. After long use of the mold will be eccentric, wear and other phenomena, so the requirements of the mold for a regular inspection, assessment, no one will cause the fiber in the mold and the formation of a poor smoothness and other phenomena.

Six power and UV power and the purity of nitrogen, pressure, UV lamp main equipment according to the circumstances, generally in order to improve production efficiency and equipment manufacturers are using two sets of UV curing oven curing, the first UV lamp power, such as power set too low, will make the fiber with curing with the smell of the surface: too high, will affect the service life of the bulb. The purpose of curing furnace using nitrogen is mainly to provide an oxygen free environment, so that the curing effect is better, and the same with the purpose of a coating and coloring process. The purity of nitrogen is more than 99.95%, the pressure is 6*10pa, and the pressure is constant.

Seven, the line tension and wiring quality: fiber optic cable tension instrument as control in (100 ~ 120+10) g. The line tension of the fiber belt is adjusted by the pressure of the line of the line, and the normal working pressure is (5 ~ 6) *10pa. The take-up tension is too general to make out the fiber take-up reel with stress increasing attenuation; too small will make the fiber with silk throwing phenomenon, in the subsequent set of plastic parameters, its quality has direct effect on the quality of the belt, cable and section distance choice must be reasonable.

Eight, environmental requirements: with the same and coloring technology, there are higher requirements on the environment at the same time in order to remove the jumper, static electricity, has certain requirements for general requirements for environmental humidity, the humidity control in about 40%. If there is dust into the mold and into the mold, will affect the mold space, so that the power of the fiber and even damage or broken fiber. Therefore, requirements and process after the wheel with fiber and other components without visible dust particles.