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Total 14 documents matching your query.

1. [Amps] making aluminum heat sinks black (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Sat, 22 Jul 2006 06:46:36 -0700 (PDT); Hello, Just recieved a large 1foot long aluminum heat sink off ebay. I read that it will work much more efficiently if painted black on one web page. Any suggestions on the right kind of paint that w; /archives//html/Amps/2006-07/msg00851.html (7,223 bytes)
2. Re: [Amps] making aluminum heat sinks black (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Sat, 22 Jul 2006 06:49:26 -0700 (PDT); I forgot to mention anything I purchase must be able to come through the US Mail as I am overseas. Or, if it is really simple, I may be able to get it in-port here in Japan but prefer sourcing off th; /archives//html/Amps/2006-07/msg00852.html (7,416 bytes)
3. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Kenneth D. Grimm, K4XL" <kgrimm@adelphia.net>; Date: Sat, 22 Jul 2006 10:00:26 -0400; I would use a spray can of flat black high temperature barbecue grill paint. Available most everywhere and certainly in your local Ace, Lowe's, True Value, or Home Depot. 73, -- Ken K4XL k4xl@arrl.ne; /archives//html/Amps/2006-07/msg00853.html (8,278 bytes)
4. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "slifamily" <slifamily@earthlink.net>; Date: Sat, 22 Jul 2006 10:04:03 -0400; In a former job, we built black body radiators used for calibration of missile seekers. We used Krylon ultra flat black paint. It had very high emissivity at long infrared wavelengths. The aluminum w; /archives//html/Amps/2006-07/msg00854.html (8,588 bytes)
5. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "" <dcoffman@iquest.net>; Date: Sat, 22 Jul 2006 10:10:41 -0400; Just a stupid question, what difference does it make what color it has as to the heat it will dissipate? Won't the paint interfere with the thermal contact with the actual metal? I would imagine that; /archives//html/Amps/2006-07/msg00855.html (9,271 bytes)
6. Re: [Amps] making aluminum heat sinks black (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Sat, 22 Jul 2006 15:06:26 +0100; If you're going to blow air over it, black colour will contribute little, if anything. Anodising (not sure of the term used elsewhere) is the usual black treatment - with paint the thermal resistance; /archives//html/Amps/2006-07/msg00856.html (8,238 bytes)
7. Re: [Amps] making aluminum heat sinks black (score: 1): Author: Tim O'Rourke <w4yn@earthlink.net>; Date: Sat, 22 Jul 2006 12:35:55 -0400 (GMT-04:00); I would suggest using what the gunsmiths use on aluminum. I can ck on the chemical content and if it is shippable. Would be happy to have it sent to U if it can be mailed. 73 Tim O'Rourke W4YN@ARRL.N; /archives//html/Amps/2006-07/msg00874.html (7,999 bytes)
8. Re: [Amps] making aluminum heat sinks black (score: 1): Author: pegasus@mho.net; Date: Sat, 22 Jul 2006 11:58:30 -0600 (MDT); I'm still amazed why transmitter manufacturers continue to use bare aluminum material for heat sinks. It is TERRIBLE at radiating heat. Forced air is necessary for any degree of efficient cooling. T; /archives//html/Amps/2006-07/msg00888.html (8,939 bytes)
9. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Sat, 22 Jul 2006 14:19:01 -0400; It could be that they think the same as I do. Any time you anodize aluminum, there is actually a coating formed 1-2 mils deep on the aluminum. This is similar to the way an electrolytic cap is formed; /archives//html/Amps/2006-07/msg00890.html (10,379 bytes)
10. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sat, 22 Jul 2006 16:28:50 -0400; Anodizing aluminum increases themicity and results in a substantially better heat radiator over that of bare aluminum. The vast majority of heat-sinks are anodized, usually black or gold. The anodiz; /archives//html/Amps/2006-07/msg00895.html (8,327 bytes)
11. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Sat, 22 Jul 2006 21:41:56 -0400; Paul, The black color only has to do with infrared radiation, the same as white, and nothing to do with the heat transfer from the device to the heatsink. The black absorbs this radiation and white r; /archives//html/Amps/2006-07/msg00899.html (10,633 bytes)
12. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sat, 22 Jul 2006 22:05:05 -0400; Agreed, Will. If you look my original message, I was speaking in terms of heat dissipation and not device heat transfer. I found some information concerning heat-sink design that may be of interest; /archives//html/Amps/2006-07/msg00902.html (9,842 bytes)
13. Re: [Amps] making aluminum heat sinks black (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Sat, 22 Jul 2006 22:19:40 -0400; Thanks Paul! I'll look it over later on this evening. Best, Will ** REPLY SEPARATOR ** _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.co; /archives//html/Amps/2006-07/msg00905.html (10,320 bytes)
14. Re: [Amps] making aluminum heat sinks black (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Sun, 23 Jul 2006 09:57:46 +0200 (CEST); cheek... take note of the radiant heat you feel from the bottom side vs. the dark teflon side. Dramatic to say the least. Almost none is felt from the bottom, the dark side radiates a great deal of h; /archives//html/Amps/2006-07/msg00918.html (8,691 bytes)

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