Electronics Forum | Mon Apr 30 00:49:07 EDT 2007 | Ron Rumrill
Let me chime-in regarding impact pressure. By definition, impact pressure is determined by several factors: 1. The weight of the water (a constant) 2. Its velocity (determined by the GPM and nozzle�s orifice size) 3. The area impinged (determined
Electronics Forum | Fri Apr 27 13:35:46 EDT 2007 | sjpence
I do not know of any standard recommended values for impact pressure in cleaning equipment. They act more as a guide when examining the various choices manufacturers have made for the spray flow, nozzle pressure, nozzle spray angle and other factors.
Electronics Forum | Mon Aug 19 13:32:54 EDT 2019 | aqueous
ROSE testing a post-reflow assembly which has been reflowed using no-clean flux may not yield information that is helpful. No-clean flux technology works by encapsulating the flux's activators and other chemical constitutes that would be harmful if l
Electronics Forum | Fri Dec 09 00:19:51 EST 2016 | aqueous
Hi Dean, We are a manufacturer of cleaning equipment. I'm not sure if your machine is one of ours or another brand. Regardless, I am happy to provide assistance. In order to maximize the level of "helpfulness", it would be helpful for me to know mor
Electronics Forum | Mon Mar 17 18:37:59 EDT 2008 | aqueous
We manufacture both bulk and localized ionic contamination testers. My answer is from the perspective of the cleanliness testing method. The issue with all bulk ionic contamination testers (Ionagraph, Omegameter, Zero-Ion), is that they test the en
Electronics Forum | Tue Jan 10 20:39:06 EST 2006 | aqueous
Of course there are solvents which are less harmful to the environment than others. The operative phrase is �less harmful�. As a rule, water-based chemistries are �greener� than solvents. There are some solvent blends designed for aqueous-based eq
Electronics Forum | Sun Aug 29 19:17:34 EDT 2004 | aqueous
Chen, It is always best to place one�s effort on determining the cause and content of the residue rather than trying to work around it. The first thing you must determine is the nature of the residue. Is it flux? In many instances, the residue is
Electronics Forum | Tue Aug 31 18:34:32 EDT 2010 | aqueous
If the batch cleaner is truly closed loop, then 100% of all of the process fluid (water) is captured, filtered (particulate, carbon, resin) and reused. This answer is based on a traditional closed-loop batch cleaning system with an integrated water
Electronics Forum | Thu Nov 10 10:45:32 EST 2011 | aqueous
The use of IPA in automated defluxing systems is nearly extinct for the following reasons: 1. IPA is flammable. In a spray-in-air environment, the already low flashpoint is even lower. 2. IPA is not a great solvent. There are specific containme
Electronics Forum | Mon Aug 25 19:27:11 EDT 2008 | Mike Konrad
There are a number of �low cost� stencil cleaners available. I am a manufacturer of one but I'll list a variety and let the others provide editorial on which is best. Basically, there are three technologies, manual cleaning (solvents and wipes), ul
