Graham,
We are using FURUKAWA reflow - model XNK-945PP (9 zones)- nitrogen
consumption is 200~250 l/min. at 1,000 ppm.
Other vendors, you can see below information
Vitronics-Soltec - model MR933 (9 zones) - nitrogen consumption is 16 m3/hr
at 1,000 ppm.
Koki Tec - model ECOR-4099 (9 zones) - nitrogen consumption is 200l/ min. at
1,000 ppm; 140 l/ min. at 3,000 ppm.
TAMURA - model TNP25-537PM (7 zones) nitrogen comsumption is 150l/ min. at
500 ppm; 100 l/ min. at 3,000 ppm.
Hope this help.
Best regards,
Vu Dinh Tang
----- Original Message -----
From: "Graham Collins" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 19, 2006 8:23 PM
Subject: [TN] N2 flow rates
> Hello TechNet
> I'm looking at buying onsite nitrogen generation capability, and for
> our two machines (wave and reflow oven) it looks like I need about 1300
> SCFH capacity. My concern is that our reflow oven is both old, and 4
> zone, so it may need to be replaced in the next few years. (we are
> lead-free exempt but may have to make the change at some point in the
> next few years - hence I'd want a bigger oven)
>
> Our oven currently uses about 1200 SCFH of nitrogen. It is, as
> mentioned, old - and I assume that oven design has improved so a new
> oven will use less nitrogen compared to an old oven of the same size.
> As well, I'm guessing that going from a 4 zone to an 8 zone oven does
> not mean I should just multiply the nitrogen consumption by 2.
>
> So, after a huge preamble, my question is this: does anyone have a half
> decently accurate estimate of what a modern 8 zone oven requires for
> nitrogen consumption?
>
> Thanks!
>
>
>
>
> regards,
>
> Graham Collins
> Process Engineer,
> L-3 Communications Electronic Systems Inc.
> Halifax
> (902) 873-2000 ext 6215
>
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