How does in-mold riveting ensure good conductivity of riveted parts?
Release Time : 2025-01-02
In-mold riveting is an advanced connection process, especially suitable for application scenarios that require high strength, high precision and good conductivity.
1. Choose the right material
Conductive materials: In in-mold riveting, riveted parts and substrates are usually made of metal materials with good conductivity, such as copper, aluminum, stainless steel, etc. These materials have excellent conductivity and can ensure smooth passage of current.
Surface treatment: In order to avoid the oxide layer affecting conductivity, special treatments are usually performed on the metal surface, such as silver plating, tin plating, etc., to maintain good conductivity.
2. Accurate mold design
Contact area maximization: When designing the mold, ensure that the contact area between the riveted part and the substrate is maximized to increase the conductive path and reduce resistance.
Geometry optimization: By optimizing the geometry of the mold, ensure that the contact surface between the riveted part and the substrate is flat and gapless, and avoid small gaps affecting conductivity.
3. Control pressure and temperature during riveting
Uniform pressure: During the riveting process, uniform pressure is used to ensure that the riveted parts are tightly bonded to the base material to avoid poor contact caused by uneven pressure.
Temperature control: Proper temperature control helps the material maintain its conductive properties during the riveting process and avoids changes in material properties caused by high temperature.
4. Surface treatment and cleaning
Removal of oxide layer: Before riveting, the metal surface is cleaned to remove oxide layers and impurities to ensure the conductivity of the contact surface.
Protective coating: In some cases, a protective coating can be applied to the surface of the riveted parts to prevent subsequent oxidation without affecting conductivity.
5. Quality inspection and monitoring
Resistance detection: After riveting is completed, the resistance of the riveted point is measured using a resistance detection device to ensure that it is below the set threshold to verify conductivity.
Visual inspection: The contact between the riveted parts and the base material is checked through a high-precision visual inspection system to ensure that there are no obvious defects.
6. Optimize the riveting process
Automation control: Use an automated control system to ensure that the parameters (such as pressure, temperature, and speed) of each riveting are consistent, reducing quality fluctuations caused by human factors.
Process parameter optimization: Through experiments and simulations, optimize the riveting process parameters to ensure that riveting is carried out under optimal conditions to obtain the best conductivity.
7. Structural design
Multi-point contact design: In some high-demand applications, a riveted structure with multiple points of contact can be designed to increase the conductive path and reduce the overall resistance.
Elastic structure: In order to adapt to temperature changes and mechanical stress, a riveted structure with a certain elasticity can be designed to ensure good conductivity under various conditions.
By selecting suitable materials, precise mold design, controlling pressure and temperature during riveting, surface treatment and cleaning, quality inspection and monitoring, optimizing the riveting process, and reasonable structural design, in-mold riveting technology can ensure good conductivity of riveted parts. These measures not only improve the reliability and stability of the connection, but also make in-mold riveting technology an ideal solution in applications that require high conductivity.
1. Choose the right material
Conductive materials: In in-mold riveting, riveted parts and substrates are usually made of metal materials with good conductivity, such as copper, aluminum, stainless steel, etc. These materials have excellent conductivity and can ensure smooth passage of current.
Surface treatment: In order to avoid the oxide layer affecting conductivity, special treatments are usually performed on the metal surface, such as silver plating, tin plating, etc., to maintain good conductivity.
2. Accurate mold design
Contact area maximization: When designing the mold, ensure that the contact area between the riveted part and the substrate is maximized to increase the conductive path and reduce resistance.
Geometry optimization: By optimizing the geometry of the mold, ensure that the contact surface between the riveted part and the substrate is flat and gapless, and avoid small gaps affecting conductivity.
3. Control pressure and temperature during riveting
Uniform pressure: During the riveting process, uniform pressure is used to ensure that the riveted parts are tightly bonded to the base material to avoid poor contact caused by uneven pressure.
Temperature control: Proper temperature control helps the material maintain its conductive properties during the riveting process and avoids changes in material properties caused by high temperature.
4. Surface treatment and cleaning
Removal of oxide layer: Before riveting, the metal surface is cleaned to remove oxide layers and impurities to ensure the conductivity of the contact surface.
Protective coating: In some cases, a protective coating can be applied to the surface of the riveted parts to prevent subsequent oxidation without affecting conductivity.
5. Quality inspection and monitoring
Resistance detection: After riveting is completed, the resistance of the riveted point is measured using a resistance detection device to ensure that it is below the set threshold to verify conductivity.
Visual inspection: The contact between the riveted parts and the base material is checked through a high-precision visual inspection system to ensure that there are no obvious defects.
6. Optimize the riveting process
Automation control: Use an automated control system to ensure that the parameters (such as pressure, temperature, and speed) of each riveting are consistent, reducing quality fluctuations caused by human factors.
Process parameter optimization: Through experiments and simulations, optimize the riveting process parameters to ensure that riveting is carried out under optimal conditions to obtain the best conductivity.
7. Structural design
Multi-point contact design: In some high-demand applications, a riveted structure with multiple points of contact can be designed to increase the conductive path and reduce the overall resistance.
Elastic structure: In order to adapt to temperature changes and mechanical stress, a riveted structure with a certain elasticity can be designed to ensure good conductivity under various conditions.
By selecting suitable materials, precise mold design, controlling pressure and temperature during riveting, surface treatment and cleaning, quality inspection and monitoring, optimizing the riveting process, and reasonable structural design, in-mold riveting technology can ensure good conductivity of riveted parts. These measures not only improve the reliability and stability of the connection, but also make in-mold riveting technology an ideal solution in applications that require high conductivity.