Re: [MW:5993] Problem wk\hile root run

Hieee Pankaj,

Kindly check the argon gas purity and also check the purging is sealed properly or there is any leakage and air is entrapping inside. kindly check what is parent material , and welding consumable if the consumable is right for parent material. check all those parameters.

regards

shamesh lotlikar
welding consultant

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From: pankaj abhang <pankaj.abhang1@gmail.com>
To: materials-welding@googlegroups.com
Sent: Fri, July 16, 2010 9:29:09 AM
Subject: Re: [MW:5992] Problem wk\hile root run

Check your fillerwire grade if GTAW if ok then chek its chemistry.

I think this problem is with your filler wire.

 

 

 

 

PANKAJ

On Wed, Jul 14, 2010 at 6:27 PM, waman nilesh <wamannp@gmail.com> wrote:

I have problem while doing root run the weld get black from backside as we have maintain the backing 10 lpm & Shielding 12 lpm as per WPS. 

Can anybody tell me the reason & how to avid it.

Nilesh 

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