Comparison of aluminum sheet heating and far-infrared heating
First, the characteristics of aluminum sheet heating
1. The surface temperature is uniform when heating
2. Components with low heat-resistant temperature, especially aluminum electrolytic capacitors and other overheating, are easily damaged
3. The surface of the component and the metal protrusion part are heated first
4. Heating characteristics: PCB surface temperature< solder joint temperature< component surface temperature
5. The solder flows to the place with high temperature, which is easy to cause solder backflow, resulting in poor soldering; In addition, high wind speed can easily cause component shifts
6. Low heating efficiency
Second, the characteristics of far-infrared heating
1. Heating characteristics: component surface temperature< solder joint temperature, Biao surface temperature
2. The shadow part of the component is less heated, resulting in uneven temperature between solder joints and large △T
3. It can prevent overheating damage of components with low heat-resistant temperature such as aluminum electrolytic capacitors
4. High heating efficiency
