... Actually, your last line may be the key. Thin sheets have a lot of surface area per unit weight. Oxides form on the surface, and become dross. Commercial...
23858
ISLAM ISLAM
e_friendhelp@...
Dec 2, 2002 11:38 pm
Excuse me!! Would you stop for a moment?! O...man...Haven't you thought-one day- about yourself ? Who has made it? Have you seen a design which hasn't a...
23857
John Lewis
lathe9x20
Dec 2, 2002 11:13 pm
... From: Jack Murphy To: hobbicast@yahoogroups.com Sent: Saturday, November 30, 2002 9:11 PM Subject: [hobbicast] Re:Charcoal Furnace Design Problem ... ...
23856
Colin Croucher
ozzyicon
Dec 2, 2002 10:01 pm
Here is an idea for making good quality ingots from al scrap. Head straight for your local cylinder head repairer, they will bins full of discarded heads. I...
23855
Harland Johnson
ropemakerdann
Dec 2, 2002 8:59 pm
Jack in Iowa Sounds to me as if you may have had the hair dryer positioned just below the grate without a connecting tube / "tuyere". Imagine trying to blow...
23854
Donald H Locker
dhlocker
Dec 2, 2002 7:57 pm
Be aware, though, that TC outputs are only good to certain temperatures, after which they typically go very flat (i.e. very little output change for a...
23853
Ray Brandes
rvbrandes
Dec 2, 2002 6:34 pm
Kirk, Here is a quote from someone who ran a 10 hobby cupola for a year and a half: "Don't go crazy with $2 a lb refractory like I did. You will doing enough...
23852
Andrew Mawson
awemawson
Dec 2, 2002 6:27 pm
... one ... wax ... some ear ... clarity of ... What ... make ... tall ... to ... randomness of ... ceramic ... John, Others may shoot me down in flames (as I...
23851
Kirk Becnel
kirkbecnel
Dec 2, 2002 6:14 pm
I believe you always get the white smoke, that is the zinc boiling off. Since zinc boils at a lower temp than the brass melts, I believe it is almost...
23850
Mark Casteel
casteelm6
Dec 2, 2002 5:58 pm
Re: the grate in the bottom of your gingery furnace, I built my first one from pics out of the lindsay catalog, I used a piece of expanded metal grate in the...
23849
Alan Condit
conditalan
Dec 2, 2002 4:31 pm
Zach, Sorry! I misunderstood what you were getting. I could have lived with the price of the petrobond premix, but I quit using petrobond and went back to...
23848
johnwbatten
Dec 2, 2002 4:30 pm
As I live way out in the woods I can make tons of smoke and no one cares. My hope is to build a cupola design furnace to make lost wax castings from scrap...
23847
JohnW
tjwal
Dec 2, 2002 4:15 pm
Jerry et al. I think most of us understand that if you are trying to run a business then scrap may end up costing too much time. I spent the better part of...
23846
WDSmith
wdsmith41
Dec 2, 2002 4:05 pm
To quote an old TV commercial: Thanks, I needed that! wdsmith ... From: "Brian Whatcott" <betwys@...> ... <snip>...
23845
Col. Zach Northway
maytag_welde...
Dec 2, 2002 3:33 pm
Where at in Iowa? Col. Zach Northway Sioux City, IA (Far northwest corner)...
23844
Kirk Becnel
kirkbecnel
Dec 2, 2002 3:18 pm
My first furnace worked that way, but I had my shop vac as an air supply. 30 square inches is diffusing your blast too much. Also, what are you using for...
23843
Kirk Becnel
kirkbecnel
Dec 2, 2002 3:08 pm
I am looking to build a cupolette, where is a good source for high temp fireclay? That is what I have read I need for the lining....
23842
WDSmith
wdsmith41
Dec 2, 2002 5:08 am
... From: "Foundryman" <foundryman@...> Many of our members want to melt beer cans, but haven't ... //// And others of us have had to melt beer cans...
23841
ecooper873@...
cruiserpt2002
Dec 2, 2002 12:41 am
In a message dated 12/1/2002 5:58:04 PM Central Standard Time, ... LOOKS LIKE A SEARS TO ME ECOOPER873@... [Non-text portions of this message have been...
23840
donaldbuchan
Dec 1, 2002 11:57 pm
Ray Brand's has been kind enough to post photo's I sent him of my compressor pump, on his web page at http://www.ray-vin.com/compressor/ If anyone can identify...
23839
ttspooon
Dec 1, 2002 11:31 pm
... inside of your crucible with a ladle coat? ... drain, I ... the ... Well, now that you mention it.. I'm planning on using a mix of clay, boric acid and...
23838
Wicker, Patrick
starnovice
Dec 1, 2002 11:30 pm
Sorry for the late response. Alan, Are you in PDX? I also paid $21.45 for 50 lbs this spring at La Grande. Pat Wicker ... From: Alan Condit...
23837
Foundryman
foundryman1940
Dec 1, 2002 9:52 pm
... and using known metal. I got mediocre consistency before I finally started using a pyrometer.<<<<<< Doug, thanks for your comments. I'm commercial on a...
23836
Doug Edwards
stueart@...
Dec 1, 2002 6:30 pm
list, I totally agree with Jerry on the subjects of the pyrometer and using known metal. I got mediocre consistency before I finally started using a...
23835
Foundryman
foundryman1940
Dec 1, 2002 5:35 pm
... Silicon ... 10 ... offset ... from a ... Petrobond. ... of ... voids, ... Should I ... John, to help with you brass melt problem. Brasses are high in zinc...
23834
Kevin and Letta Taylor
gunsmiththe
Dec 1, 2002 4:54 pm
I go down to the lumber yard and buy 100 pound sacks of U.S. Gypsum's "Casting Plaster". Kevin...
23833
Ron Thompson
ronthomp2002
Dec 1, 2002 3:01 pm
I think this indicates the velocity is needed. If you are going to change something that is purported to work, I'd first make the working one, verifying that...
23832
Ray Brandes
rvbrandes
Dec 1, 2002 12:54 pm
John, Sounds like you don't have a pyrometer. Is it possible that your poured too hot? Or too cold? Without seeing the parts it is difficult to tell if...
23831
Ray Brandes
rvbrandes
Dec 1, 2002 11:28 am
T. Tspooon, Our Thanksgiving was great! Have you considered painting the inside of your crucible with a ladle coat? Regards, Ray in FLA...
23830
Ray Brandes
rvbrandes
Dec 1, 2002 11:21 am
Don, Gook luck! With no id it could be one of thousands and thousands. Send me a couple of photos and I will park them on my site for a few days....
