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Date: | Tue, 30 Apr 96 06:39:47 MST |
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We had been using a system with ~600 psi and also had issues with
debris left in holes (14.5 - 10).
Now we are running at ~1000 psi successfully. However, the system also
employs the use of ultra-sonics, which in my opinion has more of an
affect than the high pressure spray.
Dan Buxton
Mfg. Engineer _____
/____/\
_______|___ \/|
/________ /_| |< Continental Circuits Corp.
/ ______||_ </| 3502 E.Roeser Rd.
| / | /___| |/ Phoenix, AZ 85040
| | |___|_____/ Voice(602) 232-9133 Fax(602) 268-7386
| \/_____ /| E-Mail [log in to unmask]
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______________________________ Reply Separator _________________________________
Subject: Deburring
Author: [log in to unmask] at INTERNET
Date: 04/29/96 7:04
Can anyone shed some light on the necessary water pressure required
in the rinse section of a PWB deburring machine to clear drilling
debris from small vias. We are drilling 13.5 mil holes and some 10
mil holes. Occasionally, we experience some particles of drill (or
back-up material) debris left in a few holes. My calculations show
that for the nozzle I selected, a 600 psig nozzle pressure results in
0.068 grams of force in a 13.5 mil hole. Is that enough? What does
it take to get the debris out? The vendor is offering options for
600, 1500, & 2000 psig. The price rises considerably with each
option. What do i need?
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