Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Construction Tips Construction techniques and tips

Any tips for bare steel contact not rusting?
Any tips for bare steel contact not rusting?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 6th February 2020, 12:26 PM   #1
JFace is offline JFace  Canada
diyAudio Member
 
Join Date: Sep 2011
Location: Toronto
Default Any tips for bare steel contact not rusting?

For those that work with steel enclosures for your audio projects, do you take any steps to ensure oxidation does not occur with the bare metal? For example, the safety earth connection, or an XLR body making contact with the steel for a pin 1 connection.

Thanks in advance.
  Reply With Quote
Old 6th February 2020, 09:07 PM   #2
egellings is offline egellings  United States
diyAudio Member
 
Join Date: Aug 2010
Location: CA
I would be sure a ground connection site on a steel chassis is clean, then drill a hole and rivet a terminal lug there and solder the ground wire to the terminal. With a sufficiently high powered iron, you could solder the ground wire right to the steel surface, too.
  Reply With Quote
Old 6th February 2020, 11:39 PM   #3
phase is offline phase  United States
diyAudio Member
 
Join Date: Oct 2004
I use something like this as it provides a constant force due to the spring action within the washer.
You could spray paint after assembly to tidy up the installation.

MS35333 & MS35335 STARS LOCK WASHERS | Aircraft Spruce
  Reply With Quote
Old 7th February 2020, 12:47 AM   #4
Turbowatch2 is offline Turbowatch2  Germany
diyAudio Member
 
Join Date: Aug 2013
Location: Northern germany
If you grease the parts you screw together, you can conserve the contact points for years.
Iīm doing work on vintage cars for 40 years now and that keeps contacts clean and rust free. Any all purpose grease will do. As an alternative you could use conservation wax for cars available in spry cans, which basically has the same effect, but penetrates better and dries after a few hours. In any way it is important to use it before tightening things up. Not just a dash on the finished connection.
I have measured such contacts and there is no higher resistance, as some may think grease or wax might insulate.
  Reply With Quote
Old 8th February 2020, 07:55 PM   #5
Mark Tillotson is offline Mark Tillotson
diyAudio Member
 
Join Date: May 2018
Location: Cambridge UK
Bare mild steel will rust extremely easily, which is why passivated steel or cadmium plated steel is commonly used for chassis's and assemblies. Black mild steel is naturally protected by black iron oxide layer - this needs removing to make good electrical contact of course, removing the protection where you want it.

And another way to protect steel is powder coating, but that's usually after assembly.
  Reply With Quote
Old 8th February 2020, 08:57 PM   #6
JMFahey is offline JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
A drop or two of nail enamel or synthetic paint or varnish will reach by capillarity any point which could ever oxidize and after drying keep oxygen+humidity away.
Donīt overthink it.
__________________
Design/make/service musical stuff in Buenos Aires, Argentina, since 1969.
  Reply With Quote
Old 11th February 2020, 09:23 PM   #7
Mark Tillotson is offline Mark Tillotson
diyAudio Member
 
Join Date: May 2018
Location: Cambridge UK
Ordinary paints and varnishes aren't great at preventing rust, but will fare well indoors (unless its a very humid situation). Outdoors you need anti-rust formulations for paint on bare iron and steel, otherwise its just a matter of time...


I've just been restoring some rusted outdoor machinery as it happens, if only titanium were cheaper, it doesn't corrode at all, even in seawater!
  Reply With Quote

Reply


Any tips for bare steel contact not rusting?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Contact cement -- wood and steel vladimirb0b Construction Tips 2 1st June 2017 11:57 PM
Hello please bare with I'm new to this. jparker Full Range 67 25th January 2013 04:23 PM
Rusting cartridge Sunsun22 Analogue Source 8 20th May 2010 09:47 PM
Bare PCB's littlerick Parts 8 17th March 2010 02:11 AM
Bare SDI card? Htguy Digital Source 0 11th June 2005 02:22 AM


New To Site? Need Help?

All times are GMT. The time now is 01:49 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki