First of all - Why is an INFRA machine needed?
- What more can it do than a hot air?
- First since 2006 June all PCB’s made all over the world must be lead free PCB’s
- The melting temperature for lead free solder is 225 °C
- Also if you have a PCB with lead free solder wire and if you try using hot air to repair the PCB tracks can go bad.
- So there is no other choice but to use INFRA heating station
How does this infra work?
- The Infra rework consists of two units; one is the Pre Heater and the second one is a Hand Held unit.
- The Pre Heater is used as a base on which the PCB is placed and kept in place with the help of small magnetic foot.
- The Pre Heater is used to preheat the PCB up to a suitable temperature from the lower side. Approx mate temperature for preheat is 100 degrees which will display on the unit 300 in meter in the preheater
- Once the PCB is preheated to the required temperature the Hand Held unit is used to heat the required part to a higher temperature (sufficient to melt the solder) and the required part can be removed.
- Another new part can be also be fixed in the same way – after proper application of flux
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