Re: [MW:9158] Welding of Clad Materials

It is advisible to have LPT after Coppersulphate test before starting the clad restoration

Regards

 

Hegde

---

From: Suresh Babu <suresh75.babu@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sat, 8 January, 2011 11:17:39 AM
Subject: Re: [MW:9148] Welding of Clad Materials

Dear Mr.Karthikeyan,

Thanks for your inputs.

My question was specifically for the clad materials(Example :Stainless
steel 10mm plate Claded on 40mm Carbon steel plate)What must be
checked prior to welding.

I have got some answers from my close collegues which is as follows:

1.As an Example stated above  SS Claded on CS,We need to remove the
clad material from the edges for welding ,then check the Carbon steel
edges with copper sulfide solution(Etching) to ensure all the
particles of claded material(SS) has been removed(otherwise there is a
chance for cracking).

2.Then there is precautionary step to be taken before start the
welding,that is either cover the rest of the claded surface(SS) with
Limestone powder or mask with some adhesive tapes during the welding
activity.

3.Finally do the overlay welding with correct electrode.


Kindly post if you have any corrections or suggestions on the above details.

Regards,

SURESH.
On 1/7/11, Karthik <karthik6684@yahoo.com> wrote:
> Hi,
> Iam sorry to say that you are not specific in your quirey in detail.Any how
> the simple steps are ,suitable wps,welder qualificatin,filler
> metal,cleanliness,preparation of joint(some 10mm between both side of c/s
> weld metal etc.,(these are all before start..during and after is many
> things)
> I think you are already know the basics.if you need the specific
> details,pls..give your quirey in detail.
>
> Thanks & Regards,
>
> (Karthik)
>
> Karthikeyan.S  QA/QC Manager  Getabec Energy Co.,Ltd.
> 379,Moo6,Soi8,Nikhomphatana,  Rayong-21180,  Thailand.  Phone: 0066 38
> 897035-8 (Off)  Fax: 0066 38 897034  Hand Phone: 0066 892512282
>
> --- On Fri, 1/7/11, Suresh Babu <suresh75.babu@gmail.com> wrote:
>
> From: Suresh Babu <suresh75.babu@gmail.com>
> Subject: [MW:9127] Welding of Clad Materials
> To: "Materials & Welding" <materials-welding@googlegroups.com>
> Date: Friday, January 7, 2011, 3:10 PM
>
> Dear Team,
>
> What is the most important to be checked before start welding of Clad
> Material?.
>
> Thanks in Advance.
> suresh.
>
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