Wave set-up DOE * Immersion depth [1/3 to 2/3 of board thickness] has the least impact of any variable in wave soldering. * Contact length the greatest impact. * Control flux density, time through preheaters, top side temperature as the board reaches the wave, temperature of the solder pot while the board is being soldered, time the board is over the solder pot [K Kuhlow] * Flux specific gravity, preheater temperature, conveyer speed, solder temperature * Two most important parameters are: solder temperature & dwell time * The most extensive study ever conducted on wave solder process control, involving 384 wave machines worldwide, found 76% of all wave machines running boards disparallel through the solder wave. 84% of the plants that corrected their disparallelism problem reported what they condsidered significant improvement in board quality the day the correction was made. [New Frontiers in Wave Solder Optimization: Daily Measurement of Parallelism Will Transform Your Board Quality; M Ingall, N Sasson; SMT magazine July 1998 ]
Duno what you googlified, but here's what we got: http://www.google.com/search?hl=en&rls=GGLC%2CGGLC%3A1969-53%2CGGLC%3Aen&q=%22wave+solder%22+%22doe%22
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I wanted to know what other folks are doing for wave CpK stu...
- Jul 17, 2008
by
tommyg_fla
Wave set-up DOE
* Immersion depth [1/3 to 2/3 of board thic...
- Jul 17, 2008
by
davef
