this gives a different image. Seems like risk for galvanic currents.
However, I'm still confused.
A connector with passivated stainless steel 303?? What kind?
And the gold plated connector, what's the body made of? Steel 303?
Are you talking coaxial SMT SMA connectors or like? If that is the case,
you must have steel-to-steel or gold-to-gold.
/Inge
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Anat Douek
Sent: den 31 januari 2008 10:45
To: [log in to unmask]
Subject: Re: [TN] galvanic compatibility
Thank you for your response.
It is not double plating. I have one connector with passivated
stainless steel 303 and the mating connector is gold plating.
The question is if it can be joined together, in high humidity level,
without creation of corrosion Anat
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar
Sent: Thursday, January 31, 2008 10:29 AM
To: [log in to unmask]
Subject: Re: [TN] galvanic compatibility
Anat,
why gold on passivated steel? Cosmetic aspect?
Well, if it's a must, gold over steel is possible.
There are lots of products with that finish, e.g. wrist watches.
Passivation of steel is for protection against corrosion Gold plating is
also for protection against corrosion.
So, you want a double corrosion protection?
Gold is not corrosive in itself and works as a corrosion protection if
the gold is thick and free from pores. If too thin gold is used,
corrosion can start through pores in the gold plating.
So, if you happen to have minor contaminations in the steel AND a porous
gold plating, there is a risk of pore corrosion. The steel surface
roughness is also of importance.
As always, there are some 'it depends'. If you describe the part to be
plated, TN may give you a more precise answer.
Inge
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Anat Douek
Sent: den 30 januari 2008 14:37
To: [log in to unmask]
Subject: [TN] galvanic compatibility
Hi,
Is passivated stainless steel 303 can be joined to gold plating, in
high humidity level, without creation of corrosion ?
Regards,
Anat
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts 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
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts 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
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts 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
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts 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
-----------------------------------------------------
|
