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Re: [MW:17929] Reg:Welding Of copper to bronze

By Materials & Welding
The shielding gas for TIG welding:

Pure argon (99,995%):        
All commercially fabricated metals

Argon + Helium (15% -90%)
Thick section aluminium and alloys Thick section copper and alloys.
The percentage of helium must increase proportionaly with the plate thickness

You can see this this attachment:




Cumprimentos

Rui Fernandes Pinho
Divisão de Gases Industriais
Desenvolvimento de Aplicação de Gases

Linde Sogás, Lda.
Travessa Joaquim Dias Salgueiro, Nº 44
4470-416 Vila Nova da Telha, Portugal
Phone + 351 22 999 8380, Fax: + 351 22 996 4039
Mobile + 351 91 473 9197
rui.pinho@pt.linde-gas.com, www.linde.pt



From:        Ramin Kondori <raminkondori@gmail.com>
To:        materials-welding@googlegroups.com
Date:        13-06-2013 09:14
Subject:        Re: [MW:17926] Reg:Welding Of copper to bronze
Sent by:        materials-welding@googlegroups.com



No you can not.
You should use He or Ar/He mixtures.
More He you use, less preheat is required.


On 6/13/13, Avinash Pandey <avi7589@gmail.com> wrote:
> ok but just tell if we can weld copper to copper with 80%argon 20%
> CO2.process GTAW
>
>
> On Thu, Jun 13, 2013 at 12:00 PM, Ramin Kondori
> <raminkondori@gmail.com>wrote:
>
>> I can't find it on internet. Would you mind telling us about the
>> chemical analysis of this filler wire...?
>>
>> On 6/12/13, Avinash Pandey <avi7589@gmail.com> wrote:
>> > filer wire is MNXHT 5-1-0,2-0,2
>> >
>> >
>> > On Tue, Jun 11, 2013 at 12:04 AM, Ramin Kondori
>> > <raminkondori@gmail.com>wrote:
>> >
>> >> *Dear Avinash:*
>> >>
>> >> What filler metal did you use...?
>> >>
>> >> *Ramin Kondori*
>> >> *Sr. QA/QC Engineer
>> >> *
>> >> *SINOPEC*
>> >>
>> >> r.kondori@petroyada.com
>> >> +98-2123592322
>> >> +98-9132150320
>> >>
>> >>
>> >> On Mon, Jun 10, 2013 at 3:48 PM, Avinash Pandey <avi7589@gmail.com>
>> >> wrote:
>> >>
>> >>> Dear Expert
>> >>>
>> >>> I we are welding PQR with combination M3R(Copper) # CA-104(bronze)
>> using
>> >>> commercial argon.We are successful in welding the combination but the
>> >>> UTS
>> >>> value after testing is about 19.05 MPa,which is less as compared to
>> >>> the
>> >>> UTS
>> >>> of both the material So the PQR is failed in tensile testing.
>> >>>
>> >>> Please suggest solution for the mentioned problem or if anybody had
>> done
>> >>> the same combination please forward the details.
>> >>>
>> >>> Technical details:
>> >>> 1.Chemical composition
>> >>>     M3R:Cu-bal.,Ni-0.2,Fe-0.027
>> >>>
>> >>>
>> CA-104-Cu-bal.,Zn-0.041,Al-9.78,Ni-5.21,Si-0.042,Mn-0.32,Fe-4.86,Sn-0.024
>> >>> 2.Preheat
>> >>>    Preheating is done only on M3R side up to 300C
>> >>>
>> >>>
>> >>>  --
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>> >>>
>> >>>
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>> >>>
>> >>> The views expressed/exchnaged in this group are members personel
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>> >>
>> >> The views expressed/exchnaged in this group are members personel views
>> >> and
>> >> meant for educational purposes only, Users must take their own
>> >> decisions
>> >> w.r.t. applicable code/standard/contract documents.
>> >> ---
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>> >>
>> >>
>> >
>> > --
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>> > To unsubscribe from this group, send email to
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>> >
>> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
>> >
>> > The views expressed/exchnaged in this group are members personel views
>> and
>> > meant for educational purposes only, Users must take their own
>> > decisions
>> > w.r.t. applicable code/standard/contract documents.
>> > ---
>> > You received this message because you are subscribed to the Google
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>> >
>> >
>> >
>>
>>
>> --
>> *Ramin Kondori*
>> *Sr. QA/QC Engineer
>> *
>> *SINOPEC*
>>
>> r.kondori@petroyada.com
>> +98-2123592322
>> +98-9132150320
>>
>> --
>> To post to this group, send email to materials-welding@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-welding+unsubscribe@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>>
>> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
>>
>> The views expressed/exchnaged in this group are members personel views
>> and
>> meant for educational purposes only, Users must take their own decisions
>> w.r.t. applicable code/standard/contract documents.
>> ---
>> You received this message because you are subscribed to the Google Groups
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>>
>>
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
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> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
>
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
> ---
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>
>


--
*Ramin Kondori*
*Sr. QA/QC Engineer
*
*SINOPEC*

r.kondori@petroyada.com
+98-2123592322
+98-9132150320

--
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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