Optical fiber welding operation steps and matters needing attention

1, fiber optic cable welding should follow the principle of some phase at the same time, with the corresponding color fiber inside the tube; Some are not at the same time, in order to weld again big some little some, common optical cable are gysts, skeleton and central tube bundle fiber optic cable, fiber core color sequence is divided into blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, blue. Multicore cable put different color fiber in the same bundle as a set of, such a cable inside may have several bundles. Is the fiber cross section, the red tube as the first bundle of fiber optic cable, in clockwise order green, white white white 1, 2, 3, etc. 2, welding process of fiber optic cable, the first step, stripping cable, and cable fixed to the box. In a fixed multibeam tube layer due to layered plate fiber optical fiber cable, the tube should be placed in a sequence, so as to avoid foul. The wear of the cable into the connection box, fixed wire must be compact, not loose. Otherwise, may cause fiber rolling fiber core. Be careful not to hurt, stripping length take take about 1 meter, the ointment with toilet paper to wipe clean. The second step, the optical fiber through the heat shrinkable tube. Separate different bundles, different colors of optical fiber, through the heat shrinkable casing. Strip coated layer of cable vulnerable to use heat shrinkable casing, can protect optical fiber connectors. The third step, open welding electrical source, choose the right means of welding. Power supply of the welding machine has two kinds of dc and ac, to reasonably according to the types of power supply current switch. Before each use welding machine, welding machine should be brought in the welding environment placed at least 15 minutes. Depending on the type of fiber optic set welding parameters, the pre discharge time, time and andadministrative electric time, andadministrative electric time, etc. If no special circumstances, the general selection with automatic welding process. In the use and after use to remove the dust in the welding machine in time and fiber. The fourth step, production of fiber end face. Optical fiber end face of good or bad will directly affect the quality in place, so must be qualified before welding face. For optical fiber end face, peel fiber pliers stripping fulfillment of optical fiber coating layer, use ( Alcohol) Cotton wipe, then use optical fiber cutting knife to cut off. Ensure that the section level, fiber core with 15 to 20 mm step 5, bare fiber will clean cotton to tear into small pieces with smooth surface, stick a little alcohol, clamp has strip cladding fiber, along the fiber axial wiped, the strength should be moderate, every time you want to use the different parts of the cotton and level, which can improve the utilization rate of cotton. Step 6, naked fiber cutting, first clean cutting knife and adjust the position of the blade and knife put to smooth, cutting, the movement wants natural, smooth, not heavy, you are the light. Avoid broken fiber, bevel, burrs and cracks produced bad end. Step 7, fiber to fiber placement on the V groove of welding machine, fiber board and fiber fixture on careful pressure, according to the fiber cutting length is set in the positions of the platen, close the wind cap, press welding can accomplish automatic welding, the welding machine screen will display the wastage of the estimate value. Step 8, removed from the fiber with welding machine heating furnace. If not meet ok optical fiber welding machine in the operation process of note: 1, cleaning, optical fiber inside and outside of the welding machine, optical fiber itself, important is V groove, optical fiber in areas such as the presser foot. 2, cutting, guarantees the average cutting Angle 0. 5° , approximate vertical in the chopped fiber on the specified position in the process, the end of the fiber don't touch any place, met you need us to clean, cut. Emphasis on clean before cutting! 3, in the whole process of welding, do not open the wind cover 4, optical fiber in its place, don't too far nor too near, 1/2, proficiency! 5, heating heat shrinkable casing, process named in reinforcement of the place, when heated, optical fiber welding parts must be put in the middle, with a certain tension, to prevent the occurrence of bubble heating process, the phenomenon such as insufficient fixed, emphasizes the heating process and the welding process of the fiber can be simultaneously, took out after heating, don't touch the heating parts, after high temperature, to avoid danger. 6, finishing tool, pay attention to the broken fiber ends, to prevent the danger, fiber glass, thin and very hard.