Altronics Micron T 2163 Manuel de démarrage rapide - Page 3
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Note: Tip replacement or cleaning should only be done when the iron is at room temperature.
The tip can be changed or replaced by unscrewing the knurled nut barrel assembly. It is essential that
the iron is switched off and allowed to cool before and after this operation, as damage may result if the
iron is left on without the tip inserted.
After removing the tip, blow out any remaining oxide dust that may have formed in the tip retaining area
of the barrel. Care should be taken to avoid getting dust in your eyes. Replace the tip and tighten the
knurled nut barrel assembly using only hand pressure.
Pliers should only be used to tighten the nut if loosening occurs when the iron is hot. Care should be
taken not to over tighten the nut, as this may damage the element.
RECOMMENDED SOLDERING WORKING TEMPERATURES:
A low iron temperature will slow the flow of solder. A high temperature will burn the flux in the solder,
which in turn will emit a heavy white smoke, resulting in a dry joint or damage to the PCB. When the tip
working temperature is within parameters correctly suited to the particular solder being used, a good
joint is assured. The common solder alloy used in the electronics industry is 60% tin, 40% lead (60/40).
The tip working temperature of solder is detailed below and can vary slightly among manufacturers.
Melting point ......................................................215°C (419°F)
Normal operation ................................................320°C (608°F)
Production line operation ....................................380°C (716°F)
Desoldering operation for small joint ..................320°C (608°F)
Desoldering operation for larger joint ..................400°C (752°F)
To meet RoHS (European requirement for lead free solder), the 60/40 solder alloys are not allowed in the
production process. The RoHS lead free solder alloys require a working temperature of about 30°C
(54°F)higher than typical 60/40 lead/tin soldering.
The lead free solder working temperature is detailed below and can vary among manufacturers.
Melting point ..........................................220°C (428°F)
Normal operation......................300-360°C (572-680°F)
Production line operation..........360-410°C (680-770°F)
IMPORTANT: The temperature above 410°C (770°F) is not recommended for normal soldering functions.
Please note that the lead free solder alloys require a higher soldering temperature which shortens tip life.
COMMON CAUSES OF TIP UNWETTING: (solder not taking)
1. Tip temperature higher than 410°C (770°F).
2. The tip working surfaces are not well tinned while the iron is idling.
3. Lack of flux in soldering, wicking, repairing, and touch-up operation etc.
4. Wiping tip on a high Sulphur content sponge, dirty or dry sponge, and/or rag.
5. Contact with organic materials such as plastic resins, silicone grease and other chemicals.
6. Impurities in solder and low tin content.
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