Precautions for selection and installation of cold-pressed terminals

The actual position or relative position of the cold-pressed terminal should be selected in a suitable position. The solder pins for the perforated cold-pressed terminals need to be accurately positioned, properly placed and have excellent solderability for insertion and welding. During the entire installation process, it is necessary to withstand high-temperature impact heat treatment, so infrared preheating and convection preheating should be selected to conduct heat to the interface between the solder pin and the tin pad to melt the solder paste. In addition, when the motor or circuit is short-circuited, the anti-welding performance of the contacts is poor, and a silver-based alloy with strong anti-welding ability should be selected.
In the optical fiber communication transmission link, it is necessary to choose a device that can be detachable (movable) connected, so that the optical path can be transmitted on demand to complete the purpose and requirements of reservation or expectation. This device is called a connector.
In order to identify equipment cold-pressed terminals and specific wire ends, the symbol system or color code of the relevant product can be used.
In the cold-pressed terminal magnetic system, there is no air gap in the column, and the residual magnetism is too large. A part of the surface of the gap should be filed away so that the gap is 0.1~0.3mm, or a 0.1uF capacitor should be connected in parallel at both ends of the coil.
During the entire installation process, it is necessary to withstand the high temperature of the preheating zone and the temperature transmitted to the terminal body through wave soldering. The flux must not affect the terminals, be easily removed and must not leave any residue. The entire installation process needs to be washable with water. Preheat temperatures typically reach 100°C or higher, and peak temperatures of 280°C are not uncommon.
In addition, in the installation of cold-pressed terminals, it is also necessary to pay attention to the cleanliness and smoothness of the contact surface to fully ensure the contact quality. At the same time, it is also necessary to select the appropriate cold pressing tool and select the corresponding cold pressing model according to different wire sizes to ensure that the wire is firm and reliable after crimping. During the installation process, it is also necessary to strictly follow the process requirements, such as welding temperature, preheating time, etc., so as not to affect the electrical performance and service life of the cold-pressed terminal. In addition, the application of connectors in the field of optical fiber communication also needs to pay attention to the quality and stability of the connection, so as to give full play to its role and ensure the stable transmission of the optical path.