Monday, September 6, 2010

Re: [MW:6900] Storage conditions of E 7018 & Conflicts in it.

Dear Mr.Loni,

I agreed your point that vacuum packed low hydrogen electrodes will be used directly without baking , directly or transfer to quiver.How much time it will open to atmosphere?

also above discussion going with hermetically sealed packages(air tight packages) not for vacuum packing.

Regards,
PSR

On Mon, Sep 6, 2010 at 4:34 PM, MAHANTESH LONI <mahantloni@gmail.com> wrote:
If your using electrodes which are vaccum packed, no need of baking. Electrodes are packed in normal packing then you need to follow manufacturers recommendations, code only gives minimum requirements.
 
Regards\
Loni 

On Sat, Sep 4, 2010 at 2:40 PM, Srinivas Engr <srinivas.gmsrini@gmail.com> wrote:
Dear all,

I am in confussion?

What's called hermetically sealed packages?
According ASME section 2 c SFA 5.1, Table A3,
for E 7018, its says 140degree Celsius is enough for backing oven
conditions, when its removed from packages.
but some manafatures says 300-350 celsius.

according to Table A3, we can use after baking in holding oven by 140
celsius & with quivers in site. am i right?

Is it correct or not?

When E7018 is expsoed to air, then only we have to baking to 300 - 350
celsius according table A3.

is any conflict in this? r any wrong in this?

Pl clear me...

Thanks
Srinivas

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