Electronics Forum: sand (Page 4 of 7)

Hardware for ROHS builds

Electronics Forum | Tue Nov 07 11:04:06 EST 2006 | muse95

What type of hardware are you looking for? Nuts and bolts? Custom machined/stamped parts? In general, stainless steel is usually considered RoHS, but more expensive. However, medical equipment usually uses things like stainless steel. However, som

SMT machine shift to China

Electronics Forum | Wed Jan 17 11:43:14 EST 2007 | stepheniii

The dumbest thing I read was the response to me saying people should not automatically send product to China. I was told not to bury my head in the sand. A lot of companies are being lemmings and taking it for granted it's best to send a product to C

wave finger chain

Electronics Forum | Mon Jul 12 17:52:18 EDT 2010 | warwolf

Hello Our company has just bought a EWS 500 F XL wave machine (about 8 months ago) and i have been trained on how to use it so in new to the industry, things are going well so far but im a bit stumbled on the simplest thing and that’s weather or not

ERSA Selective Solder questions

Electronics Forum | Thu Jun 06 13:04:50 EDT 2013 | williamaxler

I used method 'A' but I leave the wave on. I use a stainless steal brush like 7248T13 on McMaster-Carr.com. This way I can apply the acid and scrub the nozzle. Another important part is get a small brush to push down into the nozzle to make sure y

Universal GSM and 0402/0201 Placement

Electronics Forum | Fri Jan 16 16:34:01 EST 2015 | rgduval

It's a four-spindle head. I've already learned the joys of the size of the nozzles...on a job that had an 0603 cap a bit too close to an SOIC. The first panel ran, and the cap placed after the IC...and I had parts everywhere. Got it figured out an

PCB Gold Pad Corrosion.

Electronics Forum | Thu Apr 20 14:59:11 EDT 2017 | davef

It's difficult to tell anything from your picture. But playing the odds, I'd say it's not "gold corrosion." It is very difficult to corrode gold. Gold is a NOBLE metal. From Wikipedia, the free encyclopedia In chemistry, the noble metals are metals

Conformal coating removal machine

Electronics Forum | Wed Mar 04 08:32:45 EST 2020 | stephendo

We bought a conformal coating removal machine AKA a sand blaster at an auction. It is a CCR2000 especially made to be ESD safe. Does anyone have any experience with sandblasting conformal coating? We mostly use humiseal 1A33 and UV40. When we use the

Gold finger burnishing

Electronics Forum | Sat Jun 05 13:50:17 EDT 2021 | ppcbs

Try Sandflex Blocks for polishing. These will polish but not scratch the gold. See: https://www.amazon.com/Sandflex-Sanding-Block-3-Pack/dp/B000GACU1Q/ref=pd_bxgy_img_3/143-4402992-3496538?_encoding=UTF8&pd_rd_i=B000GACU1Q&pd_rd_r=7be0b73a-dd71-4bc

Re: Dross Removal

Electronics Forum | Tue Dec 12 13:33:52 EST 2000 | justin medernach

Dross removal is dependent upon the "activity" in your solder pot and the usage of a inert or an "air" atmosphere. The more moving that agitate the solder, the more dross. Basics first and then the answers will make sense. What is dross? Oxidatio

0201 caps

Electronics Forum | Tue Dec 03 10:21:11 EST 2002 | jimlew

I don't think I can post pics in this (if anyone knows otherwise let me know), so I will email them to anyone who's curious. Here's the answers to your questions: Placement Force: 0201s are placed on the Siemens S23s with 1 newton of force. The s


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