Electronics Forum: melted (Page 14 of 77)

Thermal cycles of tin lead solder in the Wave

Electronics Forum | Tue Oct 04 12:49:59 EDT 2005 | patrickbruneel

The amount of times the tin/lead solder can be melted and solidified is unlimited and the heat cycles do not affect the solder characteristics. The only reason for changing the solder pot is when impurities are at or over the maximum levels.

Cap securing...

Electronics Forum | Mon Oct 31 13:37:51 EST 2005 | slthomas

I would second the hot melt glue method. You do have to teach the importance of "more is not always better" and there will be learning curve, but it's a lot better at securing big clunky electrolytics than RTV. It's also a lot cheaper than chipbonder

Solder wetting issues

Electronics Forum | Thu Dec 01 21:17:30 EST 2005 | davef

Does the solder melt when 'hit' with a soldering iron [and maybe a little flux]? If so, what is the appearance of the solder flow? What causes the green tint in the picture you provided?

Tomb-Stoning. What's going on here?

Electronics Forum | Wed Jan 18 02:00:36 EST 2006 | pavel_murtishev

Good morning, This isn�t very strange. Bottom side components are prone to tombstoning more than topside ones. Try to reduce oven�s bottom heaters temperature slightly to prevent solder paste melting on bottom side. This can help. BR, Pavel

Lead Free High Temp Solder Wire

Electronics Forum | Thu Mar 02 16:33:53 EST 2006 | russ

Your best bet would be to browse through you current solder suppliers catalog and pick your alloy. Most of them have a list of alloys and their melting points as well as what form they can be supplied in.

Question about leaded parts used in leadfree soldering process

Electronics Forum | Fri Apr 07 11:19:55 EDT 2006 | muse95

Technically speaking, most likely yes it will work, unless possibly it is a BGA. There are issues surrounding BGA's. Here are some of the general issues: On any type of component, if the Pbfree solder you are using contains bismuth, then the Pb in

White residue inside the reflow oven

Electronics Forum | Thu Apr 13 04:50:53 EDT 2006 | Slaine

I had something similar a while back it looked like fibreglass insulation in my case (was using no clean flux not water based), i took some and melted it with a soldering iron and it reacted like flux. and i tried disolving it with acetone.

First documented case of tin whisker formation

Electronics Forum | Fri May 12 11:12:20 EDT 2006 | patrickbruneel

Slain, A melting point of 300C would be a little too high for the components and tinny boards. I just heard they will market the watches as Swiss "army" watches which makes them exempt.

Changing a wave over to lead free

Electronics Forum | Thu May 18 20:01:12 EDT 2006 | grantp

Hi, One other thing, and it's weird to be replying to myself, but what's the melting point of tin? Will the wave do that ok? I guess so, if you guys have done it, but just wondering about it. Regards, Grant

Next Stages of Lead Free

Electronics Forum | Tue Aug 15 17:36:29 EDT 2006 | cuculi54986@yahoo.com

Russ, I believe the concern over solders with bismuth in them was that if you did happen to get a little Pb in your solder joint, you could create an alloy that could melt at around 100 degrees C, and that's not all that warm. At least, that's what


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