Just a thought:
Has anyone heard the story of Napoleon's army and their buttons? The story
goes that after a long and brutal winter all of their shiny buttons
disintegrated. They were 100% tin . . .
Could be just a story!
Danielle L. Casha
Process Technician
EPM
-----Original Message-----
From: Mike Fenner [SMTP:[log in to unmask]]
Sent: Monday, July 05, 2004 7:01 AM
To: [log in to unmask]
Subject: Re: [LF] tin pest
Speaking of Polar explorers...
If you pop along to Antarctica you will be able to see the real solid tin
cans ( not tinned steel) that Scott and Shackleton left behind are still
there, tin shaped and sound and definitely not a little pile of dust. In
addition the last time that one was opened the contents were perfectly OK.
These of course have been subjected to nearly one hundred years of the
conditions that supposedly cause tin pest. Just a thought.
Regards
Mike
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of John Burke
Sent: 02 July 2004 18:04
To: [log in to unmask]
Subject: Re: [LF] tin pest
Wouldn't that be a story:
"A team of Antarctic researchers investigating effects of electronics
manufacturing on the ozone layer were stranded today when their GPS system
malfunctioned. The malfunction is thought to be associated with the removal
of lead from the solder"..................8-)
John
-----Original Message-----
From: MA/NY DDave [mailto:[log in to unmask]]
Sent: Friday, July 02, 2004 9:37 AM
To: [log in to unmask]
Subject: Re: [LF] tin pest
Hi Jim, Tyco-Bob, Jean-Paul, and IPC LF Listservers,
<Thank you for your response. Like many other issues in this Lead-Free
transition, it sounds as if "tin pest" has been overblown.>
I am not sure YET that the issue is overblown. I believe that based on the
environments of certain products or certain product life conditions that we
may see this selectively in real life applications. In June Tin's KayN
(Soldertec) did respond to us that ITRI has not seen any effect and
privately others have also written to me that they have yet to see any
effect.
My first guess is product that has to survive continual cold temperatures
like in the Artic or in refrigerator/freezers where -40C/-40F is common or
in other applications like thermoelectric coolers.
As for a nucleation site for the transformation to get started, I am less
clear of how that all happens. More Study, or the Luck of being an IPC LF
Listserver is needed.
If you look at the UK's Open University Report it seems obvious that we
will see this under certain conditions. The sample just had too too much
Tin Pest to be a coincidence.
Yours in Engineering, Dave
Y i Engr, MA/NY DDave
------------------------------------------------------------------------
----
---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 delivery of Leadree for vacation breaks send: SET
Leadfree NOMAIL
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
847-509-9700 ext.5315
------------------------------------------------------------------------
----
---
------------------------------------------------------------------------
----
---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 delivery of Leadree for vacation breaks send: SET
Leadfree NOMAIL
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
847-509-9700 ext.5315
------------------------------------------------------------------------
----
---
:::::::::::::::::::::::::::
This email, its content and any files transmitted with it are intended
solely for the addressee(s) and may be legally privileged and/or
confidential. If you are not the intended recipient please delete and
contact the sender by return and delete the material from any computer. Any
review, retransmission, dissemination or other use of, or taking of any
action in reliance upon, this information by persons or entities other than
the intended recipient is prohibited.
Messages sent via this medium may be subject to delays, non-delivery and
unauthorized alteration. This email has been prepared using information
believed by the author to be reliable and accurate, but Indium Corporation
makes no warranty as to accuracy or completeness. In particular, Indium
Corporation does not accept responsibility for changes made to this email
after it was sent. Any opinions or recommendations expressed herein are
solely those of the author. They may be subject to change without notice.
:::::::::::::::::::::::::::
------------------------------------------------------------------------
-------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 delivery of Leadree for vacation breaks send: SET
Leadfree NOMAIL
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
847-509-9700 ext.5315
------------------------------------------------------------------------
-------
-------------------------------------------------------------------------------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 delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL
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 847-509-9700 ext.5315
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------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 delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL
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 847-509-9700 ext.5315
-------------------------------------------------------------------------------
|
