Injection Molding Cold Pressing Needle Process

First, choose the right crimp contact tool. The crimp contact pin tool is the core tool for crimping cold-pressed terminals, which directly affects the crimping quality and efficiency. When choosing a contact socket crimp tool, you should consider the specifications and materials of the wire, choose the appropriate crimping range and shape, and ensure that the wire and the terminal can be completely crimped together.
Second, pay attention to the exposed length of the wire. Before crimping the crimp contact female terminal, the insulation layer of the wire should be stripped off reasonably according to the form of the terminal and the specifications of the wire, leaving an appropriate exposed length. Excessive or short exposed length will affect the quality and reliability of crimping.
Third, keep the terminal and wire clean. Before crimping the crimp contact male terminal, you should ensure that the surface of the terminal and the wire is clean and tidy, without any dust, oil, oxide, etc. You can use alcohol or cotton dipped in water to clean it to ensure good contact.
Fourth, choose the crimping force correctly. The crimping force is another important factor affecting the crimping quality of the crimp socket contact terminal. If the crimping force is not enough, the connection area will be insufficient, the current passing area will be small, and it is easy to generate heat and line problems; if the crimping force is too large, it will cause the wire to deform and disconnect. Therefore, when crimping female crimp contact terminals, the appropriate crimping force should be selected according to factors such as wire diameter, material and shape.
Fifth, keep the crimping in good condition. During the crimping process of male crimp contact terminals, the crimping should be kept in good condition to avoid deflection, dislocation or breakage. Appropriate clamps or fixing tools can be used to ensure that the wires and terminals do not move during the crimping process.
Sixth, perform post-crimping inspection. After the cold-pressed terminal is crimped, necessary inspections should be carried out to ensure the quality and reliability of the crimping. The appearance of the terminal and the wire can be checked to ensure that there is enough crimping area and good contact; resistance measurement can also be performed to ensure that the current path is unobstructed and stable.
Seventh, record and mark. For the wire connection points for cold-pressed terminals, records and markings should be made, including wire specifications, materials, terminal models, crimping tool models, crimping force and other information. This can facilitate subsequent maintenance and repair and improve work efficiency.
In summary, cold-press terminal crimping is a simple, fast and reliable method for connecting wires, but there are still some things to pay attention to in actual operation, including choosing the right cold-pressing tool, paying attention to the exposed length of the wire, keeping the terminal and wire clean, correctly selecting the crimping force, keeping the crimping in good condition, and performing post-crimping inspections, records and markings. Only by paying attention to these details can the quality and reliability of cold-press terminal crimping be guaranteed.