Electronics Forum: glue wave (Page 1 of 30)

Screen printing glue for wave soldering SMT components.

Electronics Forum | Fri May 26 01:50:54 EDT 2000 | Craig

We have no experience in printing glue only in dispencing for short runs. We are finding that our gluing volumes are going up and want to look at screen printing as an option. We are placing 0805 and 1206 chips, melfs, sots and ics. What are the adva

Re: Screen printing glue for wave soldering SMT components.

Electronics Forum | Fri May 26 05:54:40 EDT 2000 | Sal

For the past year now we have been printing adhesive with no real problems. Our printing ranges from 0603's to SOIC using a variation of aperture sizes and metal thickness foils. The crucial parameters are : aperture sizes : These obviously depend o

Re: Screen printing glue for wave soldering SMT components.

Electronics Forum | Mon May 29 02:15:06 EDT 2000 | Dreamsniper

Hi Buddy, We've tried shifting to this process before and from our point of view here are some of the advantage and disadvantages that we discovered. Advantage 1) Cheap Equipment cost as you just need to use your Solder Paste Printer rather than buy

glue strangeness

Electronics Forum | Thu Sep 02 10:35:46 EDT 1999 | Gian.D

We are assembling double side pcs reflowing (smt) on top and by wave on bottom. After first step (smt) we dispense glue on the bottom side putting one or two glue dots under small components and we cure in oven before wave. After wave soldering we f

glue measurement

Electronics Forum | Sat Oct 06 08:36:04 EDT 2001 | davef

Your point about thermosets getting soft in the preheater of the wave is well taken. But an adhesive that is used past its expiry or other up-front lack of process control represent 99 & 44/100 percent of the reason for �glued parts falling off in

glue measurement

Electronics Forum | Fri Oct 05 07:46:24 EDT 2001 | george

Specifications of testing force are not fixed, but (incase of wave soldering) the value should be at least 120-150 % of the force the wave. So for small chip components we assume that the force from the wave on the component is about 3 Newton, this m

glue measurement

Electronics Forum | Wed Oct 10 02:44:47 EDT 2001 | djarvis

Frank, Don't know about point 1 but if they don't fall off I don't worry about it. If they do fall off it's generally because someone has mishandled them before the wave, like shoving them into racks and the like. If they have fallen off and you can'

Re: glue strangeness

Electronics Forum | Tue Sep 07 12:51:02 EDT 1999 | Brad Kendall

We are assembling double side pcs reflowing (smt) on top and by wave on bottom. After first step (smt) we dispense glue on the bottom side putting one or two glue dots under small components and we cure in oven before wave. After wave so

Re: glue strangeness

Electronics Forum | Thu Sep 02 14:42:52 EDT 1999 | JohnW

We are assembling double side pcs reflowing (smt) on top and by wave on bottom. After first step (smt) we dispense glue on the bottom side putting one or two glue dots under small components and we cure in oven before wave. After wave solderin

Re: glue dot

Electronics Forum | Wed Jul 14 19:15:59 EDT 1999 | JohnW

Can plcc's be glue on the a board if not why? Ron, The biggest problem you have with PLCC's is the hieght of the base of the component from the board, if you can get a glue dot high enough then yes you could do it. Probably the best method is d

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