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| Vapour phase Soldering |
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| Kjelt:
--- Quote from: mrpackethead on January 27, 2015, 06:16:44 am ---And if you find the long version of the Video,you'll find that they actually poured water into the tank. --- End quote --- That does sound awfull, mixing a liquid with a boiling point of 230oC with one that has a boiling point of 100oC is rediculous, so scrap that video as any serious source of information. |
| mrpackethead:
--- Quote from: Kjelt on January 27, 2015, 08:06:36 am --- --- Quote from: mrpackethead on January 27, 2015, 06:16:44 am ---And if you find the long version of the Video,you'll find that they actually poured water into the tank. --- End quote --- That does sound awfull, mixing a liquid with a boiling point of 230oC with one that has a boiling point of 100oC is rediculous, so scrap that video as any serious source of information. --- End quote --- Heres the long version. I love the combination of AC mains, very loose wire, water, and working out the front of the garage.. What do you make of the platform. Its awesome. Listen at 1:20.. " that could be all you galden esacping.. I hope not.. Do you want to put a bit of water in there? " I wonder if what they were trying to create some kind of 'cover layer'? I would'nt completely right off this video. I think these guys should get some points for trying. And they did actually get something soldered. I'm really curious to know what the motivation for the water was.. @6:43.. what the heck was that.. Did you kick it. @7:18.. I better help that stepper motor. @7:47.. oh "f...k" it soldered. |
| tautech:
Interesting thread guys, hope it all comes together for you. As I see it a deep vessel will be very important to contain and not waste vapour. This is presumably where the pre-heating comes in to play with the different temp zones as you go deeper. Is there agreement that there should be a cooled lid? Had a look at the info linked and it's unclear how much vapour would be produced per say each litre of Galden. :-// Wondered if a circular domestic stove element would work as a heater? Say a 6" one with it's thermostat, real easy I think and they're only ~8mm thick plus bracket for a total say 15mm. Should easy cover it with a litre. |
| Kjelt:
--- Quote from: mrpackethead on January 27, 2015, 08:22:25 am ---Listen at 1:20.. " that could be all you galden esacping.. I hope not.. Do you want to put a bit of water in there? " I wonder if what they were trying to create some kind of 'cover layer'? ........... I'm really curious to know what the motivation for the water was.. --- End quote --- too much credit, if they were afraid that their costly Galden was evaporating their thought probably was too cool down the fluid so it stopped boiling/evaporating, hence add some cold fluid, like water. What they should have done was to turn the temperature control down and rework their control loop. But hey that needs some time to think. :palm: |
| jeremy:
--- Quote from: tautech on January 27, 2015, 08:49:08 am ---Interesting thread guys, hope it all comes together for you. As I see it a deep vessel will be very important to contain and not waste vapour. This is presumably where the pre-heating comes in to play with the different temp zones as you go deeper. Is there agreement that there should be a cooled lid? Had a look at the info linked and it's unclear how much vapour would be produced per say each litre of Galden. :-// Wondered if a circular domestic stove element would work as a heater? Say a 6" one with it's thermostat, real easy I think and they're only ~8mm thick plus bracket for a total say 15mm. Should easy cover it with a litre. --- End quote --- I think we are all in agreement that there needs to be some cooling at the top. Whether that is a cooled lid, cooled sides or something else (cold mesh perhaps?) I think still needs to be determined. The amount of vapour you get will somewhat be a function of the spatial distribution of heating and injected energy, as well as possibly your own individual batch of fluid. So I'm not sure it is easy to just give an amount of vapour per litre. I think the more useful characteristic is the vapour "height", which seems mostly to be controlled by temperature/injected energy. The better you can control the vapour height, the better your oven will be. I'm sure many sorts of heaters would work, including the one you mentioned. It seems to be more a problem of controlling the fluid loss while still getting adequate vapourisation. |
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