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Date: | Wed, 28 Jan 2009 16:35:15 +0200 |
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Werner
And when the Brussels greens (sprouts?) decide to restrict
perfluorocarbons? I think this may happen sooner or later. It would be
almost impossible to devise a VPS machine with zero emissions and a
practicable throughput. Depending on the components used, it can take
days for an assembly to lower its emissions to undetectable levels after
soldering.
Brian
Werner engelmaier wrote:
> Hi Brian,
> I fully agree with you--on both counts.
> Unfortunately, you need to lay the blame for the need for VPS squarely at the feet at the misguided 'greens' in Brussel.
>
> Werner
>
>
>
>
>
>
>
> -----Original Message-----
> From: Brian Ellis <[log in to unmask]>
> To: TechNet E-Mail Forum <[log in to unmask]>; Werner engelmaier <[log in to unmask]>
> Sent: Wed, 28 Jan 2009 5:56 am
> Subject: Re: [TN] Vapor Phase Soldering
>
>
>
>
>
>
>
>
>
> Yes, some do, at least as far as the practical aspects of soldering are
> concerned. However, very few even cast a thought to the environmental
> aspects, which are horrendous. The radiative forcing due to halocarbons,
> mostly fluorinated) has increased from near-zero to an average of 0.34
> W/m² in the last 50 years; this is about 21% of the total net
> anthropogenic climate change effect (IPCC 2007 Fig SPM2). The
> perfluorinated compounds used in VPS are the most pernicious of these
> because their long atmospheric residence time (>10,000 years) make them
> continue to have their effect over many tens of generations to come.Â
> Â
>
> As an engineer, VPS is the best thing since sliced bread. As an
> environmentalist, it is the worst thing since Noah was told to build his
> ark.Â
> Â
>
> BrianÂ
> Â
>
> Werner engelmaier wrote:Â
>
>>
>>
>>
>>
>>
>> Hi,
>> Does any one know of an assembly house that has vapor phase capability and knows what they are doing?Â
>
>> WernerÂ
>
>>
>>
>> ----------------------------------------------
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