Copper heat sink

[Moose McAlpine]

What about inconel?

My mate 3D prints inconel heatsinks for F1 intercoolers.

 

[stuvy]

The XVC-1000 cameras you use can be easily retrofitted with a cooling solution.
This would involve attaching a cooling plate as shown in the images below.
Nb. This is a standard part and the camera has screw tappings for its attachment.
The cooling plate has two ports and can be fed with either chilled water or air.
If the welding process itself has water cooling, then it is often possible to connect the camera’s cooling plate in series with the existing cooling circuit. If this is not possible, then we can supply standalone cooling solutions for this purpose.
It is also possible to supply the cooling plate with chilled air or gas, and the chilling can be achieved with a vortex tube.
The advantage of using chilled air is that it is a physically smaller and less costly solution than using chilled water; the disadvantage is that it requires a ready supply of compressed air and is not able to remove as much heat as water cooling. There may also be an issue with having compressed air near the welding process.
We are able to supply a variety of cooling solutions for the camera tailored to your precise requirements.



Just had the above from the camera company, fingers crossed its not mental money. Will give it a go if its reasonable

 

[Kram]

@Moose McAlpine that will be for temperature resistance as the conductivity is very poor.

Looks like 6w maximum power, not enough for most heat pipe designs and a TEC would be a bit extreme.

Small old style gpu heatsink and a decent fan would easily do what you need.

 

[stuvy]

Thats about 7kg, is it for welding heatsink, power electrics or sensitive electronics?

If its to make a finned heatsink it will be hard to beat a mass produced one, particually where heatpipes are used.

Heatpipes need to be tuned for the system. You need the working fluid to be evaporating and condensing and that wont happen with one deaigned for too much heat. If its too small, the fluid will never condense and the performace will be poor. With either its little better than the plain heatsink design.

Very difficult to beat water cooling if thats an option. Ive made some miniture water blocks that add the minimum annoyance to maintaining a system. The risk of a leak is very small.

Also consider weight and torque. Chips are fragile. Big heavy heatsinks, or hoses can /have crushed parts, so smaller can be better. is hour camera fixed or moving around?


Ive got a small lump of pure silver I made a water cooling block with years ago. The specific heat is about half, it performs better than the numbers would suggest.

Peltiers are risky, theres a good chance of bad condensation, freezing or cooking your part if you dont have it quite right.

It does not take much to lower coppers conductivity, but a free sintered part should be adequate. I have used FS copper and worked well, although mine were cold pressed/formed after.

Copper can also be grown to complex shapes. 3d print a negative finned former, coat with conductive paint. The copper will grow onto it. To get good quality it is a very slow growing process.
All you need is copper sulphate, a lump of scrap copper, and electrolysis.

Gonna try a heat tube from RS at £20 for two plus the machining cost which isnt going to be alot at all as it a partner of our company.

Will try a finned, pin and one to take the CPU fan I posted up earlier

The cooling part from the camera manufacturer is about £500, so gonna leave that until iv tested what we have

My main problem is I'm not that proficient on CAD and need to draw it up for machining



Thanks again for everyones help

 

[Misterg]

It would be useful if you could track the temperature of each part - e.g. the camera, the heatsink & ambient air around the heatsink - that way, it should be possible to calculate where the problem is, and what you'd need to do to solve it.

 

[stuvy]

It would be useful if you could track the temperature of each part - e.g. the camera, the heatsink & ambient air around the heatsink - that way, it should be possible to calculate where the problem is, and what you'd need to do to solve it.

Iv got thermo couplers at work and have a few other bits ordered to use with this set up only thing is im working from home a few days

 

[DaveB]

What about a vortex tube ?

Mount it new the camera, feed it compressed air and direct the cold output at the camera.

 

[stuvy]

What about a vortex tube ?

Mount it new the camera, feed it compressed air and direct the cold output at the camera.

That’s what the manufacturer suggests

Costs over £500 plus the heat sink and delivery

 

[DaveB]

That’s what the manufacturer suggests

Costs over £500 plus the heat sink and delivery

Then they probably know it works....

 

[stuvy]

Then they probably know it works....

I’d hope so

On two of our systems it’s absolutely fine but the way the camera sits in its new place gets hotter and it’s marginally smaller than the placement of the first two cameras

And yes I’ve swapped for the other two cameras and the others we have with the same result

 

[dyno-tron]

I’m a bit late replying on this thread so ignore if this is no longer relevant, what about a big cpu heat sink:-

HP 419898-001 ProLiant DL585 G2 heatsink Heat Sink for Processor CPU Spares | eBay

1 x HP 419898-001 Processor Heatsink. In Good Condition And In Full Working Order. ADH 178013 (-30). AJ 83982 -3. AJ 69577 -4. AJ 62343 -2. AJ 50932 -2.

www.ebay.co.uk

 

[stuvy]

I’m a bit late replying on this thread so ignore if this is no longer relevant, what about a big cpu heat sink:-

HP 419898-001 ProLiant DL585 G2 heatsink Heat Sink for Processor CPU Spares | eBay

1 x HP 419898-001 Processor Heatsink. In Good Condition And In Full Working Order. ADH 178013 (-30). AJ 83982 -3. AJ 69577 -4. AJ 62343 -2. AJ 50932 -2.

www.ebay.co.uk

Do you know how that fixes down?

 

[PhillipM]

Usually a sprung clip on those, but plenty of CPU heatsinks have various sized or multi-adaptable screw fixings. Without knowing exactly what you're cooling and the room/mountings you have it's tricky to recommend anything but there's a lot of cheap CPU heatsinks and fans out there complete with heatpipes already fitted...

 

[stuvy]

Usually a sprung clip on those, but plenty of CPU heatsinks have various sized or multi-adaptable screw fixings. Without knowing exactly what you're cooling and the room/mountings you have it's tricky to recommend anything but there's a lot of cheap CPU heatsinks and fans out there complete with heatpipes already fitted...

The camera as mentioned previously in the thread

Unfortunately it’s subject to IPO’s and NDA’s. It’s protecting our business and the customers that buy things from us

We aren’t allowed to take pictures in the lab unless pre approved by the CEO’s

Iv ordered that heat sink that @dyno-tron mentioned and will see what we can do as the metelec obviously employs idiots

The woman miss quoted the price. I did think it’s over a grand cheaper than every other quote

4” cube is £367 from aalco a 4mtr. length is £1100 upwards and at that price they have the cheek to charge delivery

 

[J1nx]

Is a CPU heat sink large enough? If not maybe look at IGBT heat sinks, I’ve got a monster heat sink somewhere that I got from an old UPS.

 

[PhillipM]

I'd imagine so, there's CPU heatsinks out there that will deal with 200+ watts at a 50c differential

 

[stuvy]

One thing I have come across and it drives me made is why isn’t there a standard unit of measurement like radiators and btu’s or fluid and PSI?

 

[PhillipM]

I mean there is thermal resistance or conductivity ratings, which will give you a rough idea.

The problem is it's not a constant, it depends on the interface size and actual thermal load.
200w on a CPU die that's 10mm by 20mm is a lot harder to cool than 200w on a pad the size of your hand.
And then you have vapour chambers and heatpipes that change conductivity depending on the operating temperature and orientation, and your thermal paste or pads at the interface will vary depending on surface flatness, roughness and contact pressure....
Pulsing heat loads can be easier to deal with because of thermal mass, etc.

 

[J1nx]

I'd imagine so, there's CPU heatsinks out there that will deal with 200+ watts at a 50c differential

Can they be machined to fit the camera tho, tends to be not much meat and small contact area? Originally there was talk of a 4mtr piece of copper and I got the impression it was passive but looks like I was wrong there going by recent posts.

 

[stuvy]

Can they be machined to fit the camera tho, tends to be not much meat and small contact area? Originally there was talk of a 4mtr piece of copper and I got the impression it was passive but looks like I was wrong there going by recent posts.

x4mtr. Was what the stockist misquoted on the price it’s £1100 for 4x4” x4mtr

The air cooled kit seems more appealing

It’s a side project as we are fairly quiet for a few weeks at work