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???
10/14/05 12:45
Modified:
  10/14/05 12:47
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 		 #102408 - It's a disaster to forbid lead in solder
Responding to: ???'s previous message
Jez said:
it really is a pain to use with a normal soldering iron

Melting point of lead free solder is about 220°C, while standard solder shows 190°C. This is a real huge difference when dealing with SMD components! And this will make trouble in the next moths and years: Reliability will heavily suffer. Wait for the next airplanes that will drop to earth due to electronics failures. I'm absolutely sure that these things will happen. Not, that it's impossible to solder boards properly, but the 'success margin' is drastically lowered, because only slight tolerances in the soldering setup will make the boards fail or get overstressed. Just the latter is much more dangerous, because the predamage is invisible!!

To my point of view, it's totally stupid to neglect the use of lead in solder, if performance is such drastically worsened. It would have been much better to force industry to install a rigid recycling programm for soldered boards to prevent lead from contaminating our environment. But that's the result, when politicians decide things who do not have any clue of the consequences.

Would it be possible to easily neglect lead in solder, be sure it would never have been mixed into it.

Kai

List of 38 messages in thread
TopicAuthorDate
Lead free solder a pain in the bum?            01/01/70 00:00      
   Mixing            01/01/70 00:00      
      visual clues            01/01/70 00:00      
         visual inspection            01/01/70 00:00      
            Then why Lead Free?            01/01/70 00:00      
               better with 63/ 37            01/01/70 00:00      
                  hmmm            01/01/70 00:00      
                  63/37 Solder.            01/01/70 00:00      
                     State change            01/01/70 00:00      
               regulation            01/01/70 00:00      
                  RoHS            01/01/70 00:00      
      Lead-free + Leaded            01/01/70 00:00      
         more info            01/01/70 00:00      
   It's a disaster to forbid lead in solder            01/01/70 00:00      
      Interesting statistic            01/01/70 00:00      
         Lead in batteries, lead in electronics.            01/01/70 00:00      
            SIlicone            01/01/70 00:00      
      Exemptions            01/01/70 00:00      
         Aging            01/01/70 00:00      
            worse            01/01/70 00:00      
               where is the difference            01/01/70 00:00      
                  no difference.            01/01/70 00:00      
   thanks to the engineerinmg profession, a            01/01/70 00:00      
      But...            01/01/70 00:00      
         lead-free solder            01/01/70 00:00      
            carts and horses            01/01/70 00:00      
               Of course, but...            01/01/70 00:00      
         another time bomb            01/01/70 00:00      
            badly soldered?            01/01/70 00:00      
               tin disease            01/01/70 00:00      
   An additional, overlooked problem            01/01/70 00:00      
      Law of Preservation of Filth            01/01/70 00:00      
         PErhaps            01/01/70 00:00      
            Myth            01/01/70 00:00      
               "man does not pollute, men do"            01/01/70 00:00      
                  Oh yea ?            01/01/70 00:00      
                     polution            01/01/70 00:00      
            Far more serious issue here            01/01/70 00:00      

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