Riveting teeth is used as a traditional high-power radiator production process. Traditionally, the method of tightly fitting riveting teeth is often used, but this will cause potential heat dissipation risks such as fitting clearance and tooth loosening. In order to solve this problem, KangDing Thermal has introduced a new welding process for multiple media through technological innovation. That is, high thermal conductivity epoxy resin bonding, brazing, soldering, and other methods are used to greatly improve the reliability and stability of heat dissipation and avoid existing risks.
Product features of insert type heat sink:
The tooth density and tooth spacing are small, and the profile height and width are relatively flexible, which is suitable for different use spaces. Small in size and light in weight, it is an ideal choice for heat sinks for high-power devices.
According to the design, make the heat-dissipating aluminum/copper substrate and heat sink, and slot the substrate
Use epoxy resin bonding to insert the heat sink into the substrate and splice it into a whole
After the substrate and the heat sink are fixed, the surface is processed to form the insert heat sink
| Process type | Maximum product specifications | Fin thickness and spacing | Solder | Operating temperature | Pros and cons |
| Brazing | 600*500*300mm | Single piece thickness 0.5-2.5mm pitch＞1.5mm | Low temperature solder, thermal conductivity 60w/m-k | 50°C to 180°C | Advantages: good heat transfer performance, high strength, high magnification ratio, suitable for forced convection and natural convection. Disadvantages: higher welding cost |
| Soldering | 500*300*180mm | Single piece thickness 0.2-1.5mm pitch＞1.2mm | Solder paste (low, medium and high temperature) thermal conductivity 35-70w/m-k | Low temperature -40℃ to 90℃, medium temperature -40℃ to 130℃, high temperature -40℃ to 170℃ | Advantages: high magnification ratio, large heat dissipation area, suitable for forced convection and natural convection, and can be used with heat pipes to increase heat dissipation performance. Disadvantages: welding requires nickel plating, not suitable for large heat sinks |
| Bonding | 800*500*300mm | Single piece thickness 0.5-2.5mm pitch＞1.5mm | Epoxy resin, thermal conductivity: 3-5W/m-k | -50°C to 250°C | Advantages: suitable for high aluminum Fin and high magnification ratio, large heat dissipation area, suitable for forced convection and natural convection, low cost, and can be used in conjunction with heat pipes to increase heat dissipation performance. Disadvantages: poor thermal conductivity of solder |
