Yes, we metallurgists may struggle on occasion with chemistry but at least
we have the speed of Dark calculated before our senior year in college.
And yes, our work environment here is Rockwell is as crazy as Doug and I
make it out to be..............
Dave
Douglas Pauls <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
09/01/2011 07:31 AM
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Re: [TN] Solder Data Question
You know, this is EXACTLY why you don't let a metallurgist near chemicals.
Not a single one of them passed first year chemistry.
Everyone knows that IC is calculated in cubic slugs per newton-moles. Bev,
back me up on this.
Doug Pauls
"David D. Hillman" <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
09/01/2011 07:13 AM
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Re: [TN] Solder Data Question
Hi Inge - yep, I try to use the SI system as much as possible, if for no
other reason than to confuse Doug - he was trying to measure some IC
results in fortnights per stone last week! And I was being lazy on the
density as I figured the value existed without me having to do the
calculation. Technet has produced 2 values for me so I appreciate
everyone's assistance.
Dave
Inge Hernefjord <[log in to unmask]>
08/31/2011 04:27 PM
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TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
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Subject
Re: [TN] Solder Data Question
Dave,
Mike Fenner has a great super solder map from his Indium time. If he does
not answer, I'll look in my pile, but it will take time. You use kg/m3 !
Are you really a american?
You can calculate yourself:
1/q = Ftin/Qtin + Flead/Qlead
in wich F is the mass fraction and Q is the density of the respective
elements
For more elements, just add :
1/Qalloy = Felement1/Qelement1 + Felement2/Qelement2 + etc
all must be in solid state at +20C
/Inge
On 31 August 2011 14:08, David D. Hillman <[log in to unmask]>
wrote:
Hi folks - does anyone have the density value (kg/m3) for SAC305 at 245C?
Dave Hillman
Rockwell Collins
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