|
Sat, Feb 12, 05 at 22:33
| Awhile back i bought some 7018 welding rod
to try on a D.C.welder that i use at work and (sad to say) but it was a waste of time and money so why is it that 7018 will/wont work in a D.C. welder ?? Zeke |
Follow-Up Postings:
|
| If the welder doesn't have a polarity switch try switching the leads where they attach to welder. Mike A |
|
- Posted by Bus_Driver (My Page) on Sun, Feb 13, 05 at 19:55
| 7018 works best with DC reverse polarity. For steel of unknown alloy, 7018 is a good choice. Work must be clean and dry, electrodes must be kept (stored) absolutely dry, very low humidity. |
|
| Sometimes when my rods wont start I stick them to the metal and let them smoke... Pre heating the rod makes them work so much better... |
|
| I have found some rods have the coating covering the very end of the rod. This would insulate the rod from making contact and arcing. I asume you know about setting DC polarity and are holding a short arc. The rod usually produces an excelent bead with min.effert. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Metalworking Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.