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January 1997

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Subject:
temp profile
From:
[log in to unmask]
Date:
Fri, 10 Jan 97 08:10:20 +0100
Content-Type:
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temp (33 lines) 
> Can anyone help?
> We are using kester 951 low residue flux in a dual  wave solder
process for 
> mixed technology.
>  What would you recommend for a temperature profile and what solder
temp. is 
> recommended for this product.
> we have been experiencing skips or no solders on the SMT components.
> Any help would be greatly appreciated.

Hi there,
i would recommend a solder temp. at 245C +-5C and a pcb temp at 120C.
Our dwell time is about 4secs for mixed technology pcb.
The design is important if you're soldering SMT on the primary side.

What kind of SMT components are you experiencing skips and no solder?


Jan Merstrand
WaveSoldering Technician

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