High-silicon aluminum alloy
High-silicon aluminum alloy has the characteristics of cheap, lightweight, high thermal conductivity, high stiffness, low thermal expansion, high machining and surface plating performance and welding performance, easy precision machining and other superior properties, especially in aerospace,space high-tech fields such as technology and portable electronic devices. High-silicon aluminum alloy materials can maintain the excellent properties of silicon and aluminum. At the same time, this material does not pollute the environment and is harmless to the human body.
Silicon Aluminum Alloy
Silicon-aluminum alloy is the world's first full range of alloy products that meet the expansion rate requirements of 5ppm/°C to 22ppm/°C, and its silicon content ranges from 10% to 70%. Silicon-aluminum alloy materials with different properties can be obtained by adjusting the volume fraction of silicon.
The silicon-aluminum alloy used in the injection molding process has the characteristics of low-cost, lightweight, high thermal conductivity, high stiffness, low thermal expansion, high machining and surface plating performance and welding performance of high-quality alloys.
Using silicon-aluminum alloy as the base, shell, cover, etc. of electronic packaging materials has good matching and heat dissipation properties, which can greatly extend the service life of packaged high-power modules and increase reliability.
Silicon Aluminum Alloy Performance Parameters :
Typical applications of silicon aluminum alloy:
1. Airborne signal transmitter
AlSi50 alloy can ｒｅｐｌａｃｅ titanium/copper-molybdenum alloy packaging, which can significantly reduce weight and cost. It can be used as a laser welding cover as a hermetic packaging.
2. Ka-band amplifier satellite equipment application
AlSi50 alloy hermetic sealing has the same thermal expansion rate as steel sealing rings. There is no need to use additional heat sinks like Kovar alloy or titanium sealing alloys. The shell yield rate is high during soldering.
3. Laser fiberglass fixture
High-strength fiber laser tubes require thermal expansion rates matching those of glass fibers, high strength and high thermal conductivity.
4. CCD high-definition camera fixed disk
AlSi70 alloy can ｒｅｐｌａｃｅ copper-tungsten alloy, with low specific gravity, thermal stability and low cost.
5. 40Gb/s signal transceiver device
AlSi70 alloy carrier plate, AlSi70 alloy can ｒｅｐｌａｃｅ copper-tungsten alloy, and is easy to control in terms of quality and cost. The heat dissipation device directly processed on the flat plate eliminates the need to weld copper and tungsten sheets on it for heat dissipation.
