Discuz! Board

 找回密码
 立即注册
搜索
热搜: 活动 交友 discuz
查看: 4|回复: 0

Problem with elctrode arc starting

[复制链接]

9万

主题

9万

帖子

29万

积分

论坛元老

Rank: 8Rank: 8

积分
293221
发表于 2021-8-31 23:08:22 | 显示全部楼层 |阅读模式
I need a piece of advice for the following issue:I've got a problem with electric arc priming .I am using a Telwin Inverter with 130 Amps max amperage.I am also using 2.5mm 6013 coated elecotrdes .I weld cold laminated steel and generally butt welding .I have properly sanded the surfaces to be welded and also contact surface with ground clamp.I also replaced the ground clamp with another one with a stronger "bite".My issue  is as follows:I thing that arc priming takes too much.I generraly strike the electrode against the metal, and it takes me about 10 times to prime the arc,with usual mishaps:electrode sticking,spattering,smoke and so on.I tried to crank up the amps but the reverse is that spattering occurs the moment the arc starts.Can you tell me if there is any kind of trick to get this issue solved..or at least part of it?Thank you ..all answers will be greatly appreciated.
Reply:If you are trying to start an arc by jabbing straight down with the electrode, you will nearly always stick the electrode to the base metal.Until you get accustomed welding, you need to use a "scratch start" technique.Scratch start is done by using a deliberate and quick dragging motion where you don't touch the metal surface until you are moving the rod slightly above the metal.Sort of like striking matches.  You move the rod and then dip it down to touch the metal but you don't stop dragging.  Then after the rod has touched the metal, quickly lift the rod away from the metal just a small amount.  This will help getting the arc established.  Once the arc is going, move to where you want the weld and begin welding.
Reply:A bit of info and some video clips:http://www.mig-welding.co.uk/learning-arc.htm"USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

Archiver|小黑屋|DiscuzX

GMT+8, 2025-12-28 04:15 , Processed in 0.280454 second(s), 20 queries .

Powered by Discuz! X3.4

Copyright © 2001-2021, Tencent Cloud.

快速回复 返回顶部 返回列表