How is the conductivity of Cold Pressed Terminal Wire? Can it effectively reduce resistance and ensure stable current transmission?
Publish Time: 2024-09-05
Cold Pressed Terminal Wire is an electrical connection method that connects metal wires to terminals by cold pressing.1. Material selectionPurity: Terminal materials are usually made of metals with high electrical conductivity, such as copper (Cu) or aluminum (Al). High-purity materials can reduce resistance and improve power transmission efficiency.Properties: The crystal structure, impurity content and type of added elements of the material also affect its conductivity. Copper is generally more conductive than aluminum, but it is also often used in critical or high-end applications due to its high cost.2. Connection tightnessConnection strength: When connecting by cold pressing, the contact area between the terminal and the wire is maximized, reducing the contact resistance, which helps maintain a small resistance and ensure stable current transmission.Mechanical properties: Good mechanical connection can ensure the reliability of the connection part for a long time and prevent the contact resistance from increasing over time.3. Surface treatmentPlating: The surface of the terminal and the wire may be treated with nickel plating, gold plating, etc. These platings can improve corrosion resistance, reduce oxidation, and maintain electrical conductivity.Cleaning: Before connection, the metal surface needs to be clean and free of oil and oxide to ensure good metal-to-metal contact.4. Design processExpert design: In order to reduce the conductive resistance of the cold-pressed terminal, it is often necessary to optimize the terminal design and processing technology, such as accurately designing the cold-pressed die cavity to ensure that the terminal and the wire can form good electrical contact under the action of hydraulic pressure.Automated production: Automated cold-pressed production can ensure the connection quality and improve the overall conductive performance under the premise of consistency of operation.5. Quality controlParameter detection: During the production process, the crimping quality of the cold-pressed end, such as crimping depth and residual stress, is detected to ensure compliance with electrical performance standards.Pressure control: The appropriate crimping pressure can protect the wire and terminal material while ensuring sufficient crimping area, thereby reducing contact resistance.6. Insulation performanceAnti-oxidation layer: Good cold pressed terminals will have a protective film or insulation layer to avoid electrochemical corrosion and prolong conductivity.Cold Pressed Terminal Wire can maintain good conductivity to a large extent by ensuring good material matching, tight connectivity, surface smoothness, design process and quality control. In most cases, cold pressed terminals can effectively reduce resistance and ensure stable current transmission. However, the specific conductivity performance also requires a comprehensive evaluation of its material and crimping quality, as well as various environmental factors in actual use.
