Diamond friction shims have the following potential applications in the mobile phone industry.
Diamond friction shims have the following potential applications in the mobile phone industry:
1. Fastening and connection of internal components
Enhanced connection stability: Mobile phones contain numerous small components that are fastened via screws or other means. The high friction characteristics of diamond friction shims increase the static friction at joint interfaces, preventing components from loosening under everyday vibration, shock, or movement, thereby ensuring the structural integrity of the internal assembly. For example, when applied to the connection between the mainboard and the mid-frame, or to the fixation of camera modules, diamond friction shims provide more robust fastening of these critical parts and reduce the probability of failure caused by loose connections.
Optimized torque transmission: For components requiring torque transfer—such as rotating camera mechanisms in certain phones or hinge assemblies in foldable devices—diamond friction shims improve both the efficiency and accuracy of torque delivery. This enables smoother operation of these special mechanical structures and maintains reliable performance over extended periods of use.
2. Auxiliary fixation of thermal management modules
Enhanced heat dissipation performance: As mobile phone performance continues to escalate, thermal management has become increasingly critical. High-end smartphones often employ sophisticated cooling solutions, including heat pipes and vapor chambers. Diamond friction shims can be used at the interface between the cooling module and the mainboard or other heat-generating components. On one hand, they ensure close contact between the thermal module and the heat source, improving heat transfer efficiency and thus boosting cooling performance. On the other hand, their high friction coefficient prevents the cooling module from shifting due to vibration during use, guaranteeing the long-term stability of the thermal system.
3. Connection between the housing and internal structure
Enhanced overall structural strength: The connection between the outer casing and the internal framework is critical to the phone's overall robustness and durability. Diamond friction shims can be applied to the joining areas between the housing and the internal frame, increasing interfacial friction. This allows the housing and internal structure to better collaborate in absorbing and distributing impact forces during drops or external shocks, reducing the risk of damage to internal components and improving the device's drop resistance and overall structural rigidity.
4. Applications in buttons and I/O ports
Improved tactile response and service life: Buttons (e.g., power and volume keys) are prone to loosening or sticking over extended use. Incorporating diamond friction shims at the interface between the buttons and the device body increases both actuation and return forces, resulting in a more responsive, comfortable tactile feel while simultaneously reducing wear and loosening, thereby extending button longevity.
Enhanced connector stability: Charging ports, headphone jacks, and other I/O interfaces undergo frequent plugging and unplugging, making them susceptible to intermittent contact issues. Diamond friction shims can be applied to the connection points between these ports and the mainboard, improving joint stability and minimizing problems such as charging anomalies or audio irregularities caused by loose interfaces.
1. Fastening and connection of internal components
Enhanced connection stability: Mobile phones contain numerous small components that are fastened via screws or other means. The high friction characteristics of diamond friction shims increase the static friction at joint interfaces, preventing components from loosening under everyday vibration, shock, or movement, thereby ensuring the structural integrity of the internal assembly. For example, when applied to the connection between the mainboard and the mid-frame, or to the fixation of camera modules, diamond friction shims provide more robust fastening of these critical parts and reduce the probability of failure caused by loose connections.
Optimized torque transmission: For components requiring torque transfer—such as rotating camera mechanisms in certain phones or hinge assemblies in foldable devices—diamond friction shims improve both the efficiency and accuracy of torque delivery. This enables smoother operation of these special mechanical structures and maintains reliable performance over extended periods of use.
2. Auxiliary fixation of thermal management modules
Enhanced heat dissipation performance: As mobile phone performance continues to escalate, thermal management has become increasingly critical. High-end smartphones often employ sophisticated cooling solutions, including heat pipes and vapor chambers. Diamond friction shims can be used at the interface between the cooling module and the mainboard or other heat-generating components. On one hand, they ensure close contact between the thermal module and the heat source, improving heat transfer efficiency and thus boosting cooling performance. On the other hand, their high friction coefficient prevents the cooling module from shifting due to vibration during use, guaranteeing the long-term stability of the thermal system.
3. Connection between the housing and internal structure
Enhanced overall structural strength: The connection between the outer casing and the internal framework is critical to the phone's overall robustness and durability. Diamond friction shims can be applied to the joining areas between the housing and the internal frame, increasing interfacial friction. This allows the housing and internal structure to better collaborate in absorbing and distributing impact forces during drops or external shocks, reducing the risk of damage to internal components and improving the device's drop resistance and overall structural rigidity.
4. Applications in buttons and I/O ports
Improved tactile response and service life: Buttons (e.g., power and volume keys) are prone to loosening or sticking over extended use. Incorporating diamond friction shims at the interface between the buttons and the device body increases both actuation and return forces, resulting in a more responsive, comfortable tactile feel while simultaneously reducing wear and loosening, thereby extending button longevity.
Enhanced connector stability: Charging ports, headphone jacks, and other I/O interfaces undergo frequent plugging and unplugging, making them susceptible to intermittent contact issues. Diamond friction shims can be applied to the connection points between these ports and the mainboard, improving joint stability and minimizing problems such as charging anomalies or audio irregularities caused by loose interfaces.




