TAMS WRM-1, Руководство пользователя

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Page 25
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Safe and correct soldering
Caution:
Incorrect soldering can cause fires (through excessive heat). Avoid this
danger by reading the chapter
Safety instructions again and
following the directions given.
If you have had training in soldering you can skip this chapter.
§
When soldering electronic circuits never use soldering-water or
soldering grease. They contain acids that can corrode components
and copper tracks.
§
Only use tin solder SN 60 Pb (i.e. 60 % tin, 40 % lead) with rosin-
based flux.
§
Solder fast: long soldering can destroy components and copper
tracks, and damages through plated holes.
§
Use a small soldering iron with max. 30 Watt. Keep the soldering tip
clean so the heat of the soldering iron is applied to the solder point
effectively.
§
Observe correct polarity orientation of semi-conductors, LEDs
electrolytic capacitors and integrated circuits before soldering and
ensure that the solder time does not exceed 5 seconds, otherwise
components can be damaged.
§
Apply the soldering tip to the soldering spot in such a way that the
part and the soldering spot are heated at the same time.
Simultaneously add solder (not too much). As soon as the solder
becomes liquid take it away. Hold the soldering tip at the spot for a
few seconds so that the tin solder finds its way, then remove the
soldering iron.
§
Do not move the component for about 5 seconds after soldering. A
glossy and perfect soldering spot should remain.
§
To make a good soldering joint you must use a clean and
unoxidised soldering tip. Clean the soldering tip with a damp piece
of cloth, a damp sponge or a piece of silicon cloth.