Dan,
You are not alone in your opinions.
Phil
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Kallin, Dan
Sent: Thursday, April 27, 2006 9:16 AM
To: [log in to unmask]
Subject: Re: [LF] Is lead removal really necessary in solders?
Allen's comment touches on one of my main concerns with the switch to LF
solders. There seems to be some illusion that the replacement metals are
non-toxic or more recyclable. The products in the news which draws all
the headlines and have the vast majority of lead in them are CRTs. This
use of lead is exempted from RoHS.
Clearly the replacement metals are still toxic. Worse, it seems to me
that recovery rates from trying to recycle base metals from a myriad of
alloys with three, four or more metals will be much lower and more
difficult than a simple binary alloy with a long history of recycling.
More energy will be needed for processing with lower yields. More energy
equals more pollution. Higher processing temperatures of the materials
means more breakdown products, like dioxins.
The electronic recycling business is not exactly a self-sufficient
economic powerhouse. WEEE will help to increase their base raw material
supply, however I fear that like any market with an oversupply,
efficiencies will go down and cherry picking will occur. Inefficiencies
equals more waste. More waste, more pollution.
In my opinion, a much better solution would have been to pass WEEE to
help develop the recycling industry, but modify RoHS to some sort of
"toxic tax" which could generate money be used to subsidize the
electronics recycling industry.
This would have far less disruption in the current market, more quickly
and efficiently help the recycling industry develop technologies to
efficiently AND SAFELY recycle electronics and spurred and encouraged
innovation by companies who could take advantage of the opportunity to
reduce their costs by reducing their toxics.
My opinions only
Dan Kallin
[log in to unmask]
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Allen Ferry
Sent: Thursday, April 27, 2006 4:45 AM
To: [log in to unmask]
Subject: Re: [LF] Is lead removal really necessary in solders?
John,
I don't pretend to be an environmental expert but if you read the WEEE
Directive you will see that the objective of the RoHS Directive is to
remove
hazardous substances in order to enable the management of the recycling
and
recovery of Waste Electrical and Electronic Equipment, one of the most
rapidly increasing waste streams. This will have a positive impact on
all of
the environmental areas you quote as being impacted by change-over to
lead-free solder.
Regarding the reliability issue, the use of lead in solder in
applications
where reliability has been identified is an issue is either exempt or is
currently the subject of a request for exemption. I understand that
these
exemptions will remain in place until there is evidence that the
alternatives are reliable.
Regards
Allen
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Harris, Sheri
Elliott
Sent: 26 April 2006 22:08
To: [log in to unmask]
Subject: Re: [LF] Is lead removal really necessary in solders?
Thanks John!
I appreciate you putting all this together and look forward to its
continued
evolution.
Sheri
-----Original Message-----
From: John Burke [mailto:[log in to unmask]]
Sent: Wednesday, April 26, 2006 11:07 AM
To: [log in to unmask]
Subject: [LF] Is lead removal really necessary in solders?
Good morning electronics industry!
For all of those people out there who cannot understand WHY we are
removing the lead in solders I have put up a web site as both a
discussion as well as an informational forum.
It makes some points and provides a feedback vehicle for those among us
who feel that it was not necessary and actually may be environmentally
detrimental.
And whether you agree with it or not please take the time to read
through it - the feedback is valued. If you like it, pass this email
along to your Colleagues.
Here is the link:
http://www.rohsusa.com
Kind regards,
John
------------------------------------------------------------------------
----
---Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks
send:
SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask]
or
847-615-7100 ext.2815
------------------------------------------------------------------------
----
---
------------------------------------------------------------------------
----
---Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks
send:
SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask]
or
847-615-7100 ext.2815
------------------------------------------------------------------------
----
---
This e-mail and any files transmitted with it are confidential and
intended
solely for the use of the individual or entity to whom they are
addressed.
A list of the Companies covered by this statement is available from our
registered office at: Octagon House, Concorde Way, Segensworth North,
Fareham, Hants PO15 5RL.
*********************************************************************
To get instant pricing information on TUV PS/BABT services, visit our
estimating / quotation system at http://www.online-estimating.com
*********************************************************************
------------------------------------------------------------------------
-------Leadfee Mail List provided as a service by IPC using LISTSERV
1.8d
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks
send: SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
------------------------------------------------------------------------
-------
This e-mail is intended to be delivered only to the named addressee(s)
and may contain information that is confidential and proprietary. If
this
information is received by anyone other than the named addressee(s),
the recipient(s) should immediately notify the sender by e-mail and
promptly
delete the transmitted material from your computer and server. In no
event shall this material be read, used, stored, or retained by anyone
other
than the named addressee(s) without the express written consent of the
sender or the named addressee(s).
------------------------------------------------------------------------
-------Leadfee Mail List provided as a service by IPC using LISTSERV
1.8d
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks
send: SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
------------------------------------------------------------------------
-------
-------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-------------------------------------------------------------------------------
|
