Electronics Forum: cfm (Page 1146 of 7890)

Re: Hollis Polyclean SMT

Electronics Forum | Mon Aug 10 21:11:00 EDT 1998 | Dave F

| Good day. We have just purchased a HOLLIS POLYCLEAN SMT Machine. We did not receive a manual and for installing the machine, we need the indications for the ventillation system: ie the number of CFM for the blower. | We would greatly appreciate i

Re: Hot air knife in wave soldering/Look An Earlier Thread

Electronics Forum | Thu May 28 12:47:08 EDT 1998 | Dave F

| Hello, | | I need some users information about "hot air knife" after the wave | bath: | - Defects reduction ? | - In what kind of boards(TH/SMT SOICS ect.) it is applied ? | - Where can I purchase it as a retrofit (Soltec Delta 6622cc) ? |

Re: About SMT equipment

Electronics Forum | Thu Apr 23 09:46:03 EDT 1998 | Cunli Jia

Igor, If you have not gotten the help you need from earlier messages on this forum, try a search on the SMTnet Directory of Suppliers. You can also browse the whole database by product categories (such as Pick-and-Place Machines) or company names

Forum Archives Now Available

Electronics Forum | Mon Aug 06 10:08:55 EDT 2001 | davef

I like the blue search button better than the upper right search button, because it gives far greater hits that are more representative of the content of the forum. For example: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&&

SMT info

Electronics Forum | Tue Oct 16 17:18:25 EDT 2001 | lileubie

Hello Chua, Welcome to the world of SMT. You found this site, so you're already on track to learning about SMT. You can check out SMTnet's library as well as SMTA's (Surface Mount Technology Association) located at http://www.smta.org. Check that

1206 Thickness

Electronics Forum | Thu Oct 18 18:57:35 EDT 2001 | davef

I doubt that it has as much to do with the tolerance as it does: * Who manufactured the part. * What technology was used in fabricating the part. We get various thickness for the same part number [ie, pakage size, value, power, tolerance, etc.]. It

warped boards and cracked solder joints

Electronics Forum | Mon Oct 29 20:19:44 EST 2001 | davef

DON'T do it!!! The two problems you'll have are: 1 Poor manufacturing process control, resulting in weak solder connections. 2 Weak solder connections are stressed, when the board is straightened upon installation in the "box". There's several hits

preventative maintainence

Electronics Forum | Tue Oct 30 19:49:12 EST 2001 | davef

We have rules [like: calibrations can not be rescheduled], but I can't think of them right now. So maybe if I put something down here, it'll get some other folk off their spotty beehynds. Planned maintenance: We schedule this in the MRP. Unplanned

Soldered PCB jumpers

Electronics Forum | Mon Nov 26 19:58:54 EST 2001 | davef

Depends on what you're talking about. For instance: Jumpers between pads: Why not use SMT jumper components? Long ECO jumper runs: When we have a serious problem in the design of our boards, we contract thick film additive jumper work. Search th

min kV requirement

Electronics Forum | Fri May 31 16:36:57 EDT 2002 | davef

If you know about 'BIG DADDY', you know what I know. A nearby thread [ http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=2&Thread_ID=1678&mc=2&forum_idx=40 ] addressed your question more directly, but certainly didn't drill-down t


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