Log In
Register
Home
Topic RSS
2:29 pm
May 13, 2010
Offline
I have to wonder if this is a volume/back pressure issue. Larry's forge is much larger and he is operating it with no doors.
4:03 pm
March 22, 2010
Offline
I did have bricks piled up blocking all but a small opening during operation.... I dont think I could maintain those high temps or get up to temp so quickly with it running open.
on Saturday I cast a large door for one end and still plan on using bricks for the other until I figure something else out that's beter
Whatever you are, be a good one.
Abraham Lincoln
4:07 pm
March 22, 2010
Offline
I am not sure where I read that a waste gate in the pressure air side would help tune the forge but if you dont have enough pressure to begin with the small blower then I dont think a waste gate will rectify that.... I can see the pressure being a critical aspect of performance
Whatever you are, be a good one.
Abraham Lincoln
5:06 pm
August 2, 2010
Offline
Just for an apples to apples comparison- What static pressure is the 168 cfm delivery specified at? It's kind of hard to make an air delivery comparison between blowers without all the information and some of us scroungers are known to have a few fans and blowers tucked away for low buck experimentation. The ribbon burner concept looks like it might be fun to play around with a bit. Though I'm perfectly happy with the atmospheric burners I'm making now there is always a place for different techniques and something else to learn. Steve G
6:59 pm
NWBA Member
March 22, 2010
Offline
Nice looking forge Bill and Larry. I tried the whole ribbon burner thing awhile back and did not have much luck. Maybe I need to pay a visit and check them out.
Tom
4:31 pm
March 22, 2010
Offline
So like I stated before this ribbon burner forge was a "big project" forge so Its not seen daily use. Ive had it running for prolonged periods maybe half a dozen times.... So last night I had it running for a couple hours when the whole inner layer of kaowool melted out.. it kind of disintegrated into smallish chunks..... it was not torn or damaged nor did it fall down... it just mostly is gone... Now I have been running it at around 2400-2500 deg.... Is that beyond its capabliltys? this is the first time I ran kaowool without a castable liner.... I can tell you I am real impressed with the thermal characteristics but if I can only get 10 hours out of it before it goes by by... not so good..
Whatever you are, be a good one.
Abraham Lincoln
4:59 pm
June 10, 2010
Offline
Larry
What was the temperature rating of the Kaowool? they make 2300º and 2600º blanket also different densities, I use 2600º blanket 8# density and coat it with ITC100. But I have never gotten those temperatures and not sure if I could at my altitude. I'm thinking the ITC100 might help a bit, and if you were not using the 2600º give it a try.
9:30 pm
March 18, 2010
Offline
I always used 3200 degree blanket. 2600 didn't stand up for me.
“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~
10:07 pm
June 10, 2010
Offline
Grant;5266 wrote: I always used 3200 degree blanket. 2600 didn't stand up for me.
Who manufactures the 3200 degree blanket? I'd like to get some.
1:24 am
March 18, 2010
Offline
This one has 3000 degree blanket: REFRACTORY SPECIALTIES
Doesn't seem to be as many suppliers as there used to was.
“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~
2:23 am
Daryl;5255 wrote: Larry
What was the temperature rating of the Kaowool? they make 2300º and 2600º blanket also different densities, I use 2600º blanket 8# density and coat it with ITC100. But I have never gotten those temperatures and not sure if I could at my altitude. I'm thinking the ITC100 might help a bit, and if you were not using the 2600º give it a try.
I use the hight temp kao wool with itc 100 too. it seems to hold up with welding temps.
but, the burner can run very hot as it is efficient, and you have to keep an eye on it. once the forge gets up to temp and the refractory/bricks are hot, cut the fuel/air back. it will hold the same heat all day within a few degrees were you want it. i have a thermocouple/solenoid valve for control.
JE
3:50 am
March 22, 2010
Offline
Here are some pics after the lining melted out and the kind of wool I used..
Whatever you are, be a good one.
Abraham Lincoln
4:48 am
June 10, 2010
Offline
Larry that Superwool 607 is rated at 1100ºC which is about 2000ºF so you are going over its temperature range by quite a bit. I would try to find an minimum of 2600ºF or the 3000ºF that Grant posted. I like coating it with ITC100 as well but have never really done any tests, if nothing else it glues the fibers in place.
4:52 am
March 22, 2010
Offline
Yep.... I guess thats what I get for using what was laying around.... I'll see if I can find some high temp stuff and give it another go...
Whatever you are, be a good one.
Abraham Lincoln
6:08 pm
May 14, 2010
Offline
I talked to the company Grant mentioned ( REFRACTORY SPECIALTIES) this morning. They are very amiable, but the cost for 3000 degree thermal blanket is very high. I asked about 1 inch blanket. They have a product, but it is extremely expensive and is only available in 48 sq foot rolls (2 x 24). Cost would be $34 per square foot ($1632 per box).
The gentleman I talked to is going to send me some information about other products. I'll post more when I receive it....
Grandkids and blacksmithing... Joy Joy Joy..............................YouTube Channel: djhammerd
7:30 pm
March 18, 2010
Offline
Boy, there sure dose not seem to be as much choice as there used to be. I know the 3200 stuff was more, but only like 25% or so. (Why, back in my day...........) All the more reason to use castable.
“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~
9:53 pm
May 22, 2010
Offline
I have not been here in a year or so, but you might try the
Clay Art Center,
Art Clay Center Inc, Scott Creek Pottery
2636 Pioneer Way
Tacoma, WA 98404-5329
because this is where I got myself 2 rolls of 3000 degree KAOWool. I did not find it too expensive, like Grant said somethine like 25% more? Yes, my forge is a Ribbon burner ... it's Ron Waile's old one that Brenda and I bought and it's been cranking for the 2 years we've had it! Trust me, we've abused it many times, lol. :skip:
You can also get the ITC 100 as well if you so desire as they carry these products as well.
Brad Roland :hot:
11:03 pm
April 21, 2010
Offline
If you go to Clay Artcenter for ITC100 ask them about their house brand for it. About 1/2 the cost.
11:30 pm
NWBA Member
July 9, 2010
Offline
Seattle Pottery Supply and Clay Art Center, Tacoma both have fiber blanket and ITC-100 as well as many of the other products a gas forge builder will find useful. I shop Tacoma because it is handy for me. If we were on the other side of the pond I'd shop at Seattle pottery.
My son is the Blacksmith
1:32 am
March 22, 2010
Offline
Well the stuff I bought came from Seattle Pottery supply, Im sure I told them what I was doing with it but its been so long ago (maybe 4 or 5 years) that I dont remember what I or they said on the matter...
I think Im gonna try a castable liner in there, I seem to have no heat issues so even if its slightly less efficient I think I'll be fine...
Whatever you are, be a good one.
Abraham Lincoln
Most Users Ever Online: 668
Currently Online:
32 Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
Larry L: 1566
Grant: 1420
Bruce Macmillan: 625
Lee Cordochorea: 595
Lynn Gledhill: 572
JNewman: 520
Gene C: 504
J Wilson: 426
Eric Sprado: 383
Tom Allyn: 340
Member Stats:
Guest Posters: 22
Members: 8725
Moderators: 4
Admins: 1
Forum Stats:
Groups: 23
Forums: 97
Topics: 3538
Posts: 20289
Newest Members:
churndashmaven, cameliacity, fred.f.chopin, RuoYi, rodeoneerer, NWBABjorn, mddangelo, Nevillberger, Crusty Veteran, redwoodforgeoaklandModerators: Steve McGrew: 77, N.W.B.A.: 72, webmaster: 0, bluehost: 0
Administrators: admin: 540
Usage Policy