Views: 0 Author: Site Editor Publish Time: 2025-07-14 Origin: Site
A typical thermal management system consists of an external cooling device, a heat sink, and a heat dissipation section. Taking a smartphone as an example:
1. Heat is rapidly transferred to the shell and frame through the flat surface of the thermal conductivity graphite sheet;
2. Enhanced infrared radiation on the surface of thermal conductivity graphite sheets;
3. Graphite sheets expand the planar heat dissipation area and quickly eliminate hotspots.
Thermal conductivity graphite sheet related parameters: Thin film polymer compounds can undergo chemical graphitization treatment under high temperature and high pressure, because carbon is a non-metallic element, but it has the electrical and thermal properties of metallic materials. It also has the same plasticity as organic plastics, and has special thermal properties, chemical stability, lubricity, and the ability to coat solid surfaces, as well as some good processability.
Therefore, heat dissipating graphite materials has been widely used in many fields such as electronics, communication, lighting, etc. Thermal conductive graphite materials provide a unique combination of high performance and unique solutions for the thermal management industry.
Scope of application of heat dissipation graphite sheet die-cutting process:
Thermal conductive graphite materials have brought new technological solutions to the increasingly widespread industrial heat dissipation needs through a series of different thermal management applications. Thermal conductive graphite material products provide innovative new technologies for thermal management in the electronics industry. thermal conductivity graphite provides better thermal conductivity while reducing the weight of equipment. Thermal graphite heat dissipation solution is a new application of thermal design.
Thermal conductivity graphite surfaces can be combined with metals, plastics, stickers, and other materials to meet a wider range of design features and requirements.
Low thermal resistance: thermal resistance is 40% lower than aluminum and 20% lower than copper. Lightweight: 25% lighter than aluminum and 75% lighter than copper; High thermal conductivity: Graphite heat sinks can be smoothly connected to any and surface, and can be cut in any way according to customer needs.
Die cutting and forming of heat dissipating graphite sheets:
In order to better adapt to the undulating surfaces of electronic devices and circuit modules, it is necessary to perform certain treatments on the hot graphite sheets. The main processing method is:
1. Adhesive die-cutting processing: In order to better bond ICs and circuit boards, a back adhesive treatment is applied to the surface of the heat-conducting graphite sheet;
2. Back film die-cutting: In some circuit designs that require insulation or thermal insulation, in order to achieve better functional optimization, back film treatment is performed on the surface of graphite sheets.
We can choose the appropriate die-cutting method according to the actual needs of the product.
The application of thermal conductivity graphite sheets in smartphones: The CPU speed used in smartphones is constantly improving, memory capacity is expanding, and operating system performance is also improving. The ultra-thin body gradually increases the heat dissipation requirements. At present, more and more smartphones sold in the domestic market are using graphite sheets as thermal conductive materials, such as Apple, Samsung, Apple, HTC, Xiaomi and others.
