jbc JNA, Инструкция по эксплуатации

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For rework jobs the use of preheaters is highly recommended.
JBC Preheaters
Applying high temperatures (350 ºC - 450 ºC / 660 ºF - 840º F) for a long time can damage both,
the printed circuit and the electronic components. In addition, significant temperature differences
between two points on a PCBA can also damage it due to the stress generated by expansion.
Preheating is a process that minimizes thermal stress and allows the welding process to take no
longer than it should.
For most rework processes JBC recommends a preheat temperature between 90 and 130 ºC / 195
and 265 ºF and not exceed a heating rate of 4 ºC/s. With the use of JBC preheaters, a homoge-
neous and controlled heating is achieved within the recommended parameters.
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