Old 04-13-2014, 02:26 AM #177
nkgamer1990's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: sausalito
Posts: 430
Rep Power: 215
nkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond repute
nkgamer1990 nkgamer1990 is online now
Class 2 Laser
nkgamer1990's Avatar
 
Join Date: Apr 2009
Location: sausalito
Posts: 430
Rep Power: 215
nkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond reputenkgamer1990 has a reputation beyond repute
Default Re: I want copper copper copper! (well... maybe not)

havent read through all the posts but what the op doesnt take into account is that steel and nickel do not absorb heat quickly. effectively what you would have with a steel heatSINK is a small aixiz module pulling the heat from the diode and a large heatsink made of steel that pulls the heat from the aixiz module MUCH slower than the diode is producing it. so although steel and nickel may be able to HOLD more heat they cannot absorb it nearly as quickly as copper or aluminum.


__________________
405nm dilda phr 100mw
405nm c6 12x 440mw
445nm a140 custom lab 1500mw
445nm a140 c6 1500mw
473nm bw tek lab 10mw
532nm needle beam 50mw
532nm olike 480mw
532nm lasever 960mw lab unit
638nm custom 700mw lab unit
650nm rifle 250mw
rgb projector 638nm 532nm 445nm
nkgamer1990 is online now   Reply With Quote








Old 04-13-2014, 08:10 AM #178
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,459
Rep Power: 1027
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,459
Rep Power: 1027
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: I want copper copper copper! (well... maybe not)

I thought so, Yea what he said I agree 100%



Quote:
Originally Posted by nkgamer1990 View Post
havent read through all the posts but what the op doesnt take into account is that steel and nickel do not absorb heat quickly. effectively what you would have with a steel heatSINK is a small aixiz module pulling the heat from the diode and a large heatsink made of steel that pulls the heat from the aixiz module MUCH slower than the diode is producing it. so although steel and nickel may be able to HOLD more heat they cannot absorb it nearly as quickly as copper or aluminum.
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !

Flaminpyro is offline   Reply With Quote
Old 06-19-2014, 07:22 PM #179
Zar Zar is offline
Banned
 
Join Date: Jun 2014
Location: Eastcoast
Posts: 39
Rep Power: 0
Zar is infamous around these partsZar is infamous around these partsZar is infamous around these partsZar is infamous around these parts
Zar Zar is offline
Banned
 
Join Date: Jun 2014
Location: Eastcoast
Posts: 39
Rep Power: 0
Zar is infamous around these partsZar is infamous around these partsZar is infamous around these partsZar is infamous around these parts
Default Re: I want copper copper copper! (well... maybe not)

Quote:
Originally Posted by rhd View Post
Here's the real kicker though. Neither copper nor aluminum are the ideal choices (even within what is reasonably affordable) for heatsinks where specific heat capacity is the real issue. I selected a handful of reasonably attainable metals (and a few that I was just curious about) and I created a chart. I researched their specific heat capacity per kg, and then adjusted based on their typical density to get their specific heat capacity per unit of volume instead of mass.

very good observation, however even using the proper heat-sink material is not job entirely done, a poor design will still be waste of materials or if not waste - then inefficiency, you have to sacrifice some aesthetics for performance, or performance for aesthetics, or use a little imagination and get both (saw few sick examples of the latter).

This is a human intestine, all those "hairs" are there to increase surface area of nutrient absorption, even some ripples - will increase thermal conductivity, the more the better, I might be stating the obvious, please forgive me

Zar is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f54/i-want-copper-copper-copper-well-maybe-not-72698.html
Posted By For Type Date
Untitled document This thread Refback 09-30-2016 02:19 AM
Metal Specific Heat Capacity Chart This thread Refback 04-15-2015 11:21 AM
??????????????? This thread Refback 03-22-2012 02:55 AM










Loading








Top 50 Laser Pointer Companies - Green Lasers Top 50 Laser Pointer Companies - Blue Lasers Top 50 Laser Pointer Companies - Red Lasers
Top 50 Laser Pointer Companies - Yellow Lasers Top 50 Laser Pointer Companies - Purple Lasers Top 50 Laser Pointer Companies - Orange Lasers
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes




Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 08:33 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC