Dear peers,
There we go again. How do you know a production soaking time in advance? It can be judged from the time taken by a PWHT when running a PQR only, right? It all depends on the set up you have. So, your yardstick is the time noted during PWHT, none else. For that matter, many production entities are to be noted during a PQR and accounted for later in their respective slots while working out the production calculations. So, in all probability, you will be allowed to have a production soaking time 80% of the PQR time - provided it produces a sound weld meeting all applicable requirements, of course.
Please advise.
Shashank Vagal
--- On Sat, 4/7/09, Chandra, Vasanthan (Lagos) <Vasanthan.Chandra@DeltaAfrik.com> wrote:
From: Chandra, Vasanthan (Lagos) <Vasanthan.Chandra@DeltaAfrik.com>
Subject: [MW:2618] RE: 2616] Re: QW 407.3
To: materials-welding@googlegroups.com
Date: Saturday, 4 July, 2009, 11:51 AM
I hope the interpretation of clause is that if the production welding soaking time is X hrs (Includes total soaking time involved in production like intermediate, dehydrogenation, final PWHT etc…) then the supporting PQR soaking time shall be atleast 80% to the X hrs. WPS can be written with this PQR to cover the Production time X hrs. Regards, Vasanth
From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Shashank Vagal
Sent: 03 July 2009 08:05
To: materials-welding@googlegroups.com
Subject: [MW:2616] Re: QW 407.3 | The underlying meaning eludes me; why would one want to increase the soaking time at an additional cost and what not, over and above the WPS allowed one by way of a PQR? Something jinxes.
Shashank Vagal
--- On Tue, 30/6/09, PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com> wrote:
From: PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com>
Subject: [MW:2594] Re: QW 407.3
To: arun vani@gmail.com
Cc: materials-welding@googlegroups.com
Date: Tuesday, 30 June, 2009, 10:15 AM
I think it is QW-407.2 you guys are referring, because QW407.3 does not appear in Sec.IX 2007 edition !
Regards
Prem Nautiyal
On Sun, 28 Jun 2009 19:41:18 +0530 wrote
>you are right, rajagopal
> arun
>
>On Sun, Jun 28, 2009 at 11:28 AM, rajagopal kannan <
>rajagopal.kannan@gmail.com> wrote:
>
>> Hi,
>> That is if you do heat treatment of your PQR Test coupon to 80 minutes
>> soaking time, then you can write a WPS for production welds to the maximum
>> of 100 minutes soaking time.
>> Thanks,
>> K.Rajagopal
>>
>> On 6/27/09, Jamie Welding wrote:
>>>
>>>
>>> Hi folks,
>>> Can any one of u interpret the QW 407.3.
>>> Especially the part PQR should be at least 80% aggregate times that in
>>> production welds.
>>> >>
>>>
>
>
>--
>ARUNVANI
>
>Smiling Opens the Heart
>
>Good feelings for others are like ointments that heal wounds and
>re-establish friendships and relationships. Good feelings are generated in
>the mind, are transmitted through your attitude and are reflected in your
>eyes and smile. Smiling opens the heart and a glance can make miracles
>happen.
>
>SMILE IS A COOLING SYSTEM OF HEART,
>SPARKLING SYSTEM OF EYES, LIGHTING SYSTEM OF FACE, RELAXING SYSTEM OF
>MIND....
>SO TO ACTIVATE ALL YOUR SYSTEM
>==ALWAYS KEEP SMILING==
>
>>
>
PREM S NAUTIYAL
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