jbc JNAU Instruction Manual page 9

para manuales - color gris
200 mm
Recommended
130 mm 130 mm
For rework jobs the use of the preheaters* is highly recommended. Find the preheater that best suits
your soldering needs in www.jbctools.com.
100 mm
80 mm
60 mm
50 mm
Applying high temperatures (350 ºC - 450 ºC / 660 ºF - 840º F) with a hot air tool for a long time can
damage both, the printed circuit and the electronic components.
40 mm
In addition, significant temperature differences between two points on a printed circuit board can da-
mage the printed circuit and the electronic components due to the stresses generated by the different
expansion of the material.
Preheating is a process that minimizes thermal stress and allows the soldering 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 homogeneous and controlled heating is achieved within the recom-
mended parameters.
*not included
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