Jim,
'no invironmental problem' - that's the point. But on political discussions
it's allways pointed out to be ! Somebody needed to find anything to solute
the environmental problem and found lead in solder. For mee it's interesting
(may be my information is wrong) the the US started with a 'lead ban act'
but later withdraw (why ??). Then Japan came up, searching for alternative
solutions, powered by a lot of money from the government. Europe started
later and did it 150% - to my knowledge there is only Europe coming up with
a law. But as far as I know there are some products taken out of the lead
ban: military electronics and electronics for aircrafts......
Next point: in the past I was engaged in design of RF-components for telecom
radio links and now I'm busy on military radio. Both have the same problem:
we've to guarantee 10 years of usage of our equipment. Can you imagin any
PC, diskman, wolkman, playstation,.... etc with a guarantee of 10 years ??
But the largest amount of electronics and as well of waste is produced by
those things - and waste is a problem !! But within the waste there are a
lot of critical materials. And I think that the percentage of lead within
that waste is less than the percentage of use of lead for electronic
purposes.
To Erik de Kluizenaar I wrote the followoing:
>> In my opinion we have the problem that
- politicians (are there any people with technical education - I don't think
so) decide to do something
- managers in companies do accept or not those decisions
but as most of them are so far away from technics they have problems in
understanding
The questions I hear:
- do we need that whithin short time ( 2008 aint short)
- do we earn money due to that
So people like me have nearly no chance to change the situation. And it
lookes like a lot of people in different companies have a comparable
situation - the smaller the companies are the more problems like described
we be present. Sometime I feel like Don Quichotte fighting the wind
mills.................. <<
I realize: that's no technical discussion but the writing of someone who is
angry with politicians...
There is a driving force in some areas of electronics to use leadfree
solders but not because of environment but because of thermal problems (car
electronics etc.). They have a specialized production focused on their
special needs. But what's about smaller companies with a low production
volume, having no inhouse production - working with outsourcing ? Most of
those are very small companies as well and they have a problem to spend a
lot of money for investigations. Do politicians know that - I can't believe.
Best regards
Wolf-Dieter Schmidt
(Product-Engineer)
SEL Defense Systems
PO-Box 1760
D-75117 Pforzheim
Tel.: +49 7231 15 3386
Fax: +49 7231 15 3390
eMail: [log in to unmask]
> -----Ursprüngliche Nachricht-----
> Von: Jim Smith [SMTP:[log in to unmask]]
> Gesendet am: Montag, 13. November 2000 22:27
> An: [log in to unmask]
> Betreff: Re: [LF] AW: [LF] OT Proportions
>
> Wolf-Dieter:
>
> Your computation shouldn't need any further comment, but I suspect you
> will encounter plenty
> of denunciation nonetheless. Solder lead (and component lead) is not an
> environmental problem.
> (And Erik de Kluizenaar has been waging a passionate and eloquent battle
> for pragmatic
> recycling that would take care of the whole nasty business.) When the
> failure rate of critical
> electronic assemblies rockets because of overheating components, I expect
> mass changes of
> minds. But it will be too late then, won't it?
>
> Jim Smith
> Managing Director
> Cambridge Management Sciences, Inc.
> 4285 45th St. S.
> St. Petersburg, FL 33711-4431
> Tel: (727)866-6502 ext. 21
> Fax: (727)867-7890
> eMail: [log in to unmask]
>
> "Schmidt, Wolf-Dieter" wrote:
>
> > Hallo to all,
> >
> > just a few days ago I've got a statistic on lead consumtion worldwide -
> let
> > me give you some numbers out of it:
> > 80.81 % storage batteries (have look into your car !)
> > 4.69 % ammunition
> > 1.40 % cable covering
> > 0.49 % electronic solder
> >
> > By the way: I've made up a short calculation which shows: the lead
> quantity
> > within one car battery is the same as on ~ 30,000 square meters of
> printed
> > boards.
> > This needs no further comment - or does it ?
> >
> > Best regards
> > Wolf-Dieter Schmidt
> > (Product-Engineer)
> > SEL Defense Systems
> > PO-Box 1760
> > D-75117 Pforzheim
> > Tel.: +49 7231 15 3386
> > Fax: +49 7231 15 3390
> > eMail: [log in to unmask]
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Brian Ellis [SMTP:[log in to unmask]]
> > > Gesendet am: Sonntag, 12. November 2000 10:35
> > > An: [log in to unmask]
> > > Betreff: [LF] OT Proportions
> > >
> > > Today is the start of the "hunting" season in this little island.
> > > According to the newspapers, there will be 50,000 so-called
> "sportsmen"
> > > in the hills, each using an average of 25 cartridges with 20 g of lead
> > > shot (yes, it is still used). They take pot shots at anything that
> they
> > > think that moves, whether suitable for the pot or not (occasionally at
> > > each other, as well, but perhaps not frequently enough). This makes me
> > > thing we are talking about 25,000 kg of finely divided, easily
> oxidised,
> > > lead particles scattered indiscriminately over the whole countryside,
> > > just in one day. If we take the 24 official days when hunting is
> > > permitted plus all the poaching that occurs, we are therefore talking
> > > about 500 to 1000 tonnes of lead.
> > >
> > > There is virtually no electronics industry in this country, so nearly
> > > all the tin/lead alloy imported is in finished products plus the odd
> > > reels of solder used by TV repair workshops. With a total population
> of
> > > about 500,000 in the free part of the country, the finished products
> > > will be essentially TV sets, computers and (above all) cellphones (we
> > > have proportionally the highest density of cellphones in the world,
> > > according to the newspapers). How much solder will there be in the
> > > 50,000 TVs, 75,000 PCs/monitors and 150,000 cellphones imported per
> > > year? 1 tonne or maybe 2 tonnes, 40% of which is lead: less than
> > > 1/1000th the amount of lead scattered about by hunters.
> > >
> > > Where is our sense of proportion?
> > >
> > > Brian
> > >
> > >
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