Sunday, August 15, 2010

Re: [MW:6501] why do we use dollymix welding technique in pipelines?

Mr.Khan
 
As you know , Dollymix Technique means combination of use of both uphill and downhill progression during welding.
 
If you use Uphill Progression alone ,there will be high heat input for lower thichness pipelines .That's why we use this technique.
 
Hope you cleared now.
 
thanks.
 
Piramarayan B
Welding Engineer-CSWIP SCWI 3.2.2
ILF Consulting Engineers (PMC),KSA


 
On Sun, Aug 15, 2010 at 10:19 AM, IMRAN KHAN <vssimran_87@yahoo.co.in> wrote:
DEAR
        Mr.Pirama rayan
 
kindly explain me
1-how heat input will be minimise in dollymix technique in pipeline?
2-for what purpose we are using this method?
 
by
KHAN
ksa
 



 



--- On Sun, 15/8/10, pirama rayan <piramarayan@gmail.com> wrote:

From: pirama rayan <piramarayan@gmail.com>
Subject: Re: [MW:6499] why do we use dollymix welding technique in pipelines?
To: materials-welding@googlegroups.com
Date: Sunday, 15 August, 2010, 11:49 AM

Dear Mr.Khan,
 
To minimise the Heat Input,we are using Dollymix welding Technique.
 
Thanks.
 
Piramaryan B
Welding Engineer -CSWIP SCWI 3.2.2
ILF CONSULING ENGIEERS (PMC) KSA

 
On Wed, Aug 11, 2010 at 8:41 PM, aslam khan <aslamkhan4u@gmail.com> wrote:
dear all ,
i want to know  why do we use dollymix welding technique in pipelines?thanks

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