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Hardfacing

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发表于 2021-9-1 00:23:11 | 显示全部楼层 |阅读模式
OK. I'm trying to hardface a loader bucket. I checked with several local suppliers to see what they had available. I have a Hobart Mig 175 and a Lincoln 'Buzz Box'. I'm a far better Mig welder than an Arc guy. Everyone told me mig wire was only available in thick sizes and large expensive rolls. They recommended I use Stoody #31 rod.I have since discovered on the Stoody site that they have a new .035 mig wire for hardfacing available in 5 lb. rolls. Too bad no one offered it to me.But here's the problem. I bought the #31 rod and tried to use it. What a nightmare. Had a terrible time maintaining an arc. Worse yet about half way thru each rod the rod turns cherry red. It gets so hot that it falls apart right where it's held in the rod holder. Stoody recommends 100-120 amps. I tried higher amperage, better arc but the rod gets red faster. Lower amps, 100 or less and it's impossible to strike an arc.So where do I go from here is the big question.Thanks for all your help in advance
Reply:Hardfacing rod varies in characterisitics.  I am not familiar with your particular rod but you  might try changing polarity.  Also the weld beads are not intended to be flat and smooth.  A red hot stub indicates you have too much amperage.  Have you preheated the bucket ?
Reply:Is your buzz box AC only or AC/DC.The rods are likely meant to be used on DC current only.Here in the Great White NorthMosquitoes can't fly at 40 below
Reply:To me it sounds like you are trying to short arc it.  It might be better to run your arc gap a bit bigger with the recomended amp settings.Common sense in an uncommon degree is what the world calls wisdom.
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