What should the optical fiber welding machine pay attention to in the welding process

The optical fiber welding machine needs to pay attention to many aspects in the welding process to ensure the welding quality and operation safety. Here are some key considerations:

First, preparation

Device check: Ensure that the power supply of the optical fiber welding machine is sufficient and all components function properly. Check that the key parts of the welding machine, such as the V-shaped slot, optical fiber presser, and electrode, are clean and free of impurities.

Materials: Obtain necessary tools and materials, such as fiber strippers, cutting knives, heat shrink tubing, and alcohol cotton. Ensure that the number of heat shrink tubes is sufficient and the alcohol purity is above 99%.

Fiber treatment: According to the steps of preparing the end face, strip the fiber coating layer, clean the surface of the fiber, and use a cutting knife to make a flat fiber end face. The quality of the end face will directly affect the welding effect, so special attention is needed.

Second, the welding process

Optical fiber placement: Place the treated optical fiber in the V-shaped slot of the welding machine. Ensure that the optical fiber end face is closely aligned with the bottom of the V-shaped slot to avoid bubbles or dislocation.

Parameter setting: According to the material and type of optical fiber, set key parameters such as pre-melting main melting current, time and optical fiber feeding amount on the welding machine. Parameter Settings may vary depending on the brand and model of the optical fiber splicer. Therefore, read the instructions carefully before performing operations.

Welding operation: After pressing the welding key, the welding machine will automatically discharge welding. In this process, it is necessary to observe the discharge state and welding quality of the welding machine. If it is found that the discharge is unstable or the welding quality is poor, discharge correction or welding parameters should be adjusted in time.

Heat shrink tube heating: After welding is complete, move the heat shrink tube to the welding point and heat shrink. During the heating process, pull the optical fiber slightly to prevent the heat shrink tube from shifting or the optical fiber from twisting. At the same time, ensure that the heat shrink tube completely covers the fusion point to improve the mechanical strength of the optical fiber and protect the fusion point from the external environment.

Third, follow-up treatment and inspection

Disk fiber fixation: Coil the fused optical fiber in the optical fiber tray, pay attention to the radius of the disk should not be too small to avoid unnecessary losses. When spinning fibers, maintain the natural bending state of the fiber to avoid sharp bends or small circles.

Quality check: The OTDR test instrument is used to check the quality of the welding points to ensure that the welding loss is below the specified standard. At the same time, the optical fiber behind the disk fiber needs to be checked for example to determine whether the additional loss caused by the disk fiber is within the acceptable range.

Sealing and protection: When working in the field, the connection box should be sealed to prevent water or moisture. At the same time, the connection box needs to be fixed to ensure its stability and safety in harsh environments.

Fourth, other precautions

Safety precautions: Wear protective equipment such as glasses and gloves during operation to prevent injuries caused by splashes of optical fibers. At the same time, attention should be paid to the safety of electricity to avoid electric shock accidents.

Environmental adaptation: Optical fiber welding machine has certain requirements for ambient temperature and humidity. When operating in a high temperature or humid environment, attention should be paid to ventilation, cooling and moisture-proof treatment to ensure the normal operation of the welding machine and the stable and reliable welding quality.

Regular maintenance: Regular cleaning and maintenance of the optical fiber welding machine can extend its service life and maintain good working condition. Maintenance includes cleaning V-shaped slots, optical fiber presenters, and electrodes, and replacing aging electrodes, heat shrink tubes, and other wearing parts.

In summary, the optical fiber welding machine needs to pay attention to many aspects in the welding process to ensure the welding quality and operation safety. The success rate and stability of optical fiber welding can be greatly improved through careful preparation, precise welding operation and strict follow-up treatment and inspection.

Chengdu Focus Infra Materials Co.,Ltd is a global business trading company. The company focused on the field of fiber optical networks and data communications, our products are widely used in telecommunication transmission network systems, wide area networks, FTTH, FTTX, FTTA and security monitoring systems. Products mainly include：heat shrink tubes, cold shrink tubes, joint closures, terminal connector, terminal box, fiber optic splice closure, PLC splitter, fiber pigtail, FTTH accessories.