| Sealing the Crucible | |
|
|
Author | Message |
---|
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Sealing the Crucible Wed Jan 13, 2010 12:13 am | |
| I am a welder and fabricator, and I propose that we take a different approach if money is a factor. Instead of trying to seal the crucible, try sealing in the crucible. The carbon fiber gaskets can be found here http://www.atlantech1.com/ for $6.76ea for the 3". This will also allow a longer period of cooling which is better for the formation of crystals. This will also allow you to use the cheap ceramic crucibles. Replace the crucibles as needed and MAKE SURE you use a graphite base lubricant on the bolt threads before you fire every time or you may have to cut the bolts off. Use expansion proof bolts and nuts or find some with acme threads if you can find them and this will make it a lot easier to remove the nuts. If you get flanges that have an inner ring protruding outward grind it flat. This way you can use coal in a pipe with a blower attached or pick up a cheap used pottery kiln. If anyone needs any help to make one of these I will make a short tutorial. goatz4u@hotmail.com [img] [/img] | |
|
| |
Guest Guest
| Subject: Cool post Thu Jan 14, 2010 12:49 pm | |
| You should be selling these... |
|
| |
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Re: Sealing the Crucible Thu Jan 14, 2010 3:29 pm | |
| I was mulling over the idea, but I would have $50 in one + time and would have to sell them for $100 each. If there is anyone willing to spend $100 on one of these, if so let me know. I could cut the cost down to $25 each and cut corners but I would still charge $75. | |
|
| |
Guest Guest
| Subject: I would buy since it cost me more Fri Jan 15, 2010 9:55 pm | |
| It cost me more to have mine made by a professional machine shop in in San Diego, $150.00, but mine is 7" in diameter and about 7" Tall with a screww on cap, and with little wings at that bottom to help me unscrew the lid after burnout.
But I would be interested in ordering one in a month or two.
What diameter would you be making yours? |
|
| |
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Re: Sealing the Crucible Fri Jan 15, 2010 10:24 pm | |
| The only problem in cost seems to be the flanges and the acme threaded nuts. The dimensions of this will be 2" Inside Diameter (I.D.) x 2 1/2 inches tall without the flanges. They will come with these graphite crucibles, the crucible outside dimensions are 1 5/8" diameter x 2 1/16" tall. I have to make these as small as possible to keep the costs down. If anyone has any 2" pipe flanges or knows someone who has some they want to sell let me know please. I would like to do this project with stainless steel if possible. I also have to wait to get my welder fixed which may take a month or so. | |
|
| |
kevinpaw123
Number of posts : 217 Age : 60 Location : Garrsion, Minnesota Registration date : 2009-01-25
| Subject: Re: Sealing the Crucible Fri Jan 15, 2010 11:04 pm | |
| goatz Nick says to use Iron not steel or stainless steel. If you make them out of Iron I would like to order one or two from you! | |
|
| |
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Re: Sealing the Crucible Sat Jan 16, 2010 9:06 am | |
| He suggested to use iron for a crucible not as part of a setup. The crucibles themselves would be graphite anyway, the same thing that comes with the R9D furnace he recommended using in his ehow tutorial. The reason I am going to use stainless is because of the pressure on the flange. If I used Iron it would crack as it cools, if I use carbon steel it is more likely to conform to the pressure from the bolts. As long as the stone doesn't touch the metal it mostly likely will have no effect on it. If you think that it would still impact the stone please let me know and maybe I can make you one from iron and you can let me know how it works, but there will be no warranty for flanges cracking. | |
|
| |
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Re: Sealing the Crucible Sat Jan 16, 2010 9:39 am | |
| You can always use satonite clay paste and inswool (its like refractory glue), like blacksmiths use in the wootz process. They make the paste and cover the rim of the crucible and its lid, then place the material inside and seal the two together. The only problem with this is that you will destroy the ceramic crucible getting them apart. http://www.dfoggknives.com/photogallery/wootzprocess_files/wootzprocesscontent.htm The clay can be found here, it took almost an hour to find a site that sold it. They also sell inswool, and lots of other great stuff. Also they sell in small quantities so you do not have to buy large volumes at high prices. http://elliscustomknifeworks.hightemptools.com/refractorycoatings.html | |
|
| |
NDC Admin
Number of posts : 599 Age : 43 Location : beyond the veil Registration date : 2008-12-26
| Subject: Re: Sealing the Crucible Sun Jan 17, 2010 6:12 am | |
| Sealing the crucible inside another container would not work. The dew crystals will vaporize and end up on the outside of the crucible, doing nothing to the metal inside the crucible.
And also the crucible doesn't need to be sealed in such drastic ways. I've recently just had success using my new furnace with the lid that sits dirrectly on top of the graphite crucible. It has ceramic wool inside and covers the top of the crucible in a way that sufficiently "seals" it. I just set a heavy iron ring on top to weight it down. That does the trick because even though air could possibly escape, it seems to keep in the dew crystals because the metals do indeed convert to the glass. I will the video on my website once I buy a new laptop or harddrive to install windows on. Linux has virtually no audio or video editing software. | |
|
| |
Zosimo
Number of posts : 383 Registration date : 2009-01-19
| Subject: Re: Sealing the Crucible Sun Jan 17, 2010 7:34 am | |
| Nick, first of all congratulation fo your production of glass materia from dew crystals! Are from the Mutus path or a new kind of extraction from the waters? May be we need a recapitulation about the ovens, kilns & crucibles. I'm going to buil my oven soon. If I've understood properly: - graphite crucibles are OK - iron crucible are OK - electric kilns are OK - propane ovens OK - it's even OK heating the crucible directly with the propane torch like I did in the Tugel-Moses path closing it with egg-blaster lutum + refractory cement? - the ceramic wool you use is the cerawool you can buy in rolls? Thank you Zosimo | |
|
| |
goatz
Number of posts : 21 Registration date : 2010-01-11
| Subject: Re: Sealing the Crucible Sun Jan 17, 2010 9:23 am | |
| Thanks for the knowledge, you saved me a ton of coin. It sound like I could just lay a steel weight over a piece of inswool. That would be cheap and easy. | |
|
| |
phillip_reed
Number of posts : 101 Age : 44 Location : Queenland,Australia Registration date : 2008-12-28
| Subject: Re: Sealing the Crucible Mon Jan 18, 2010 6:56 am | |
| Nick, have you tried "kdenlive" for linux its a video editing program http://www.kdenlive.org/
phillip reed | |
|
| |
Sponsored content
| Subject: Re: Sealing the Crucible | |
| |
|
| |
| Sealing the Crucible | |
|