Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 26-04-2018, 16:47   #31
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 24,793
Re: DIY solar arch/bimini from mild/carbon steel

I used to store all my rods in an ancient refrigerator with a light bulb in the bottom.
Same with the welding truck, where the rods were stored I kept a light bulb, and you can tell the difference in how smooth the arc was too.
If I were to keep them on a boat, I think I would break them into 5 or 6 rod pieces and use the vacuum sealer.

Anyone run Jet rod, 7024?
__________________

a64pilot is offline   Reply With Quote
Old 26-04-2018, 17:49   #32
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 3,317
Re: DIY solar arch/bimini from mild/carbon steel

Quote:
Originally Posted by a64pilot View Post
I used to store all my rods in an ancient refrigerator with a light bulb in the bottom.
Same with the welding truck, where the rods were stored I kept a light bulb, and you can tell the difference in how smooth the arc was too.
If I were to keep them on a boat, I think I would break them into 5 or 6 rod pieces and use the vacuum sealer.

Anyone run Jet rod, 7024?
Full iron powder. Used to see them in structural shops with 400amp+ AC welders being used (to stop arc blow). Wire feed processes have made this classification obsolete.
__________________

Reefmagnet is offline   Reply With Quote
Old 27-04-2018, 07:19   #33
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 24,793
Re: DIY solar arch/bimini from mild/carbon steel

Iím sure out in the oilfield where the wind always blows that 7024 is still used.
Reason you only saw stick welders in the oilfield was wind, canít MIG in 20 kts of wind.
a64pilot is offline   Reply With Quote
Old 27-04-2018, 08:09   #34
Registered User

Join Date: Mar 2016
Posts: 165
Re: DIY solar arch/bimini from mild/carbon steel

Hi, thanks for all the answers!

Slow progress: I bought a Welder! Elektra Beckum ST140, DC only (the machine I was actually using for my tests).

And I ordered another small batch of electrodes, Oerlikon Overcord, also 6013 just like the Oerlikon Fincord I was using before. But the ISO designation differs:

Overcord: E 38 0 RC 11, Fincord: E 42 0 RR 12

So the overcord is supposedly less strong but is a rutile/cellulose mix suited for vertical down/out of position welding. I'm looking forward to see if I can figure out a difference between the rods... But first I have to look at a couple of boats...
_andi_ is offline   Reply With Quote
Old 27-04-2018, 15:38   #35
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 3,317
Re: DIY solar arch/bimini from mild/carbon steel

Quote:
Originally Posted by a64pilot View Post
Iím sure out in the oilfield where the wind always blows that 7024 is still used.
Reason you only saw stick welders in the oilfield was wind, canít MIG in 20 kts of wind.
Self shielded flux cored wires have replaced stick electrodes for site work for anything but the small jobs for a few decades now. No shielding gas required. There's also submerged arc for those really big horizontal position jobs. Sticks still have their place, but few would use an iron powder welding rod these days.
Reefmagnet is offline   Reply With Quote
Old 27-04-2018, 15:45   #36
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 3,317
Re: DIY solar arch/bimini from mild/carbon steel

Quote:
Originally Posted by _andi_ View Post
Hi, thanks for all the answers!

Slow progress: I bought a Welder! Elektra Beckum ST140, DC only (the machine I was actually using for my tests).

And I ordered another small batch of electrodes, Oerlikon Overcord, also 6013 just like the Oerlikon Fincord I was using before. But the ISO designation differs:

Overcord: E 38 0 RC 11, Fincord: E 42 0 RR 12

So the overcord is supposedly less strong but is a rutile/cellulose mix suited for vertical down/out of position welding. I'm looking forward to see if I can figure out a difference between the rods... But first I have to look at a couple of boats...
Both 6012 and 6013 classes are all position rutile coated electrodes. 6013 are generally considered best for vertical up welding and 6012 for vertical down. The difference lies in the viscosity of the molten slag, although both types will work. It's also worth noting that these types tend to have the most variation in performance between different brands.
Reefmagnet is offline   Reply With Quote
Old 02-05-2018, 12:23   #37
Registered User

Join Date: Mar 2016
Posts: 165
Re: DIY solar arch/bimini from mild/carbon steel

I guess it's sort of confusing because folks over here tend to put at least a pinch of rutile into everything, oerlikon alone has like 10 different 6013 rod types, some suited for vertical down, some not. And they don't sell 6010/11/12.

In the meantime I had a look at a couple of other objects to actually attach the arch to but no luck yet, every single one had issues, some even had multiple. At least 2/3 of the owners were nice folks, only one "used car dealer" kind of guy. Asked me how much sailing experience I have, I answered "some" and then he started schooling me. Sort of funny though, he called the lower shrouds "baby stays" and I wasn't able to convince him otherwise.

On welding I figured out that the penetration issue was caused by too small of a gap. And I'm much more comfortable running vertical down than vertical up. New problem is slack holes, bc fincord rods are not suited for vertical down. But tomorrow the new rods should be in the mail.
_andi_ is offline   Reply With Quote
Old 02-05-2018, 13:24   #38
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 3,317
Re: DIY solar arch/bimini from mild/carbon steel

Vertical down position is usually only used on thin material or as a first pass where you need to bridge gaps. The resulting weld will not have high strength because it has no significant thickness and shallow penetration. Just in case it's not obvious, you can adjust while welding by changing your electrode angles and even, to a limited extent, your arc length. If you can find a helper, you can even have them adjust the welding current as you direct, as you weld.
__________________

Reefmagnet is offline   Reply With Quote
Reply

Tags
arc, bimini, solar, steel

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Protecting Mild steel in the water DuncanC Construction, Maintenance & Refit 6 19-10-2013 12:13
A36 Mild Steel Diesel Tanks BriRich Construction, Maintenance & Refit 0 02-09-2013 02:54
Solar Panels: Arch vs Bimini Doodles Electrical: Batteries, Generators & Solar 18 27-01-2013 05:59
Type of Mild Steel plate for hull Coachbolt61 Construction, Maintenance & Refit 4 03-06-2012 08:39
painting mild steel gettinthere Construction, Maintenance & Refit 13 26-11-2008 00:17



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:03.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.