Howling dog forge Posted March 1, 2018 Author Share Posted March 1, 2018 confidence is high enough to weld out support frame. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 1, 2018 Author Share Posted March 1, 2018 First layer refractory cut and notched, trial assembly. notching fixture what to do with these?? Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 2, 2018 Author Share Posted March 2, 2018 two pounds of Kastolite mixed with 10 fluid Oz. of distilled water covers 72in² at 1/2" thickness. Now we see if it will stick to the Duraboard. This is where the whole thing could fall down. and have to be rethought. in retrospect I think 1/4" thick may have done the job. Quote Link to comment Share on other sites More sharing options...
Binesman Posted March 6, 2018 Share Posted March 6, 2018 Kastolite is super sticky i dont see you having any issues with it bonding to duraboard Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 6, 2018 Author Share Posted March 6, 2018 7 minutes ago, Binesman said: Kastolite is super sticky i dont see you having any issues with it bonding to duraboard At 3 oz water per pound it just rolled off, mixed a bit wetter than I had originally planned at 5 oz per lb. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 13, 2018 Author Share Posted March 13, 2018 Just thought I should post something, did something stupid and took a fall. Broke my little finger and cracked a rib so I will be out of the shop for a week or so. these are pretty cool. handles for the doors. Hoping for minimal heat transfer, maximum heat dispersal. we shall see. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted March 16, 2018 Share Posted March 16, 2018 Have you decided where to position your burners yet? Or what kind of burner? Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 17, 2018 Author Share Posted March 17, 2018 6 hours ago, Mikey98118 said: Have you decided where to position your burners yet? Or what kind of burner? look at the entries posted 2/19 and 2/27. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 22, 2018 Author Share Posted March 22, 2018 Trying a side mount with a 35 º off horizontal tilt, should put flame path on the floor with with as long a flame path as possible. First the fixture, not much to look at but it worked pretty well. could have been one 2 x 8 but didn't have a section so a little liquid nails did the trick. For some reason it slid around on the base after I left it. not really a problem. could not think of a way to clamp the sheet metal to the wood so a couple extra holes for sheet rock screws and the 7/8" hole is for a thermocouple. I used a 1 1/2" hole saw to cut the steel. and a 1" to cut the refractory, don't forget your PPE s on this one, makes a very fine dust. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 23, 2018 Author Share Posted March 23, 2018 this is how the holes were cut. And now for some more mud, 3# for the two sides. I have been using a halogen work light to start the drying process, a couple of hours so I can pull the forms and let it harden for a few days. I am hopeing that the coupling will wiggle free of the refractory, I did not use any kind of parting agent. With luck it will shrink? Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 24, 2018 Author Share Posted March 24, 2018 trial fit of bottom and sides, angle of burner path. Holes line up pretty well. so far so good. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 27, 2018 Author Share Posted March 27, 2018 I put my panels in the oven at 350º for 30 minutes just to be sure they were dry, and then put them into my old forge at 2100º for 20 minutes and slow cooled. assembly showed a very marked shrinkage, No wonder monolithic cast cracks. Now to decide what to do with the gaps, I can leave them, fill them with kastolite or fill them with Kowool. I am going to put a 1/2" face on the openings if for no other reason than to protect the soft refractory. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 30, 2018 Author Share Posted March 30, 2018 put everything together and fired it up, Some mistakes were made and changes are planned, the thermocouple was a waste of time and money, it works OK but I think the position is a bit of a problem. the lift door locked up as the support heated, easy enough to fix that one, I think 1/4" kastolite is better than 1/2", it takes too long to heat up and go infrared. I think I may change the 35º burner angle to 45º. I managed a 3 layer faggot weld in 3/8" round without much problem. All in all I think it shows promise. The first picture is after it was off for 10 minutes or o and I lit it for affect. tune in next week when we cut some of it apart and re weld it. I think I would like to see what a .030 mig tip will do as well. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted March 31, 2018 Author Share Posted March 31, 2018 Information you may be interested in Bright yellow heat @15 PSIG using .11 oz fuel/hr/in³. works out to about 2.4 pounds of liquid per hour. If it wouldn't freeze up I could run about 8 hours± on 20 pound tank. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted April 12, 2018 Author Share Posted April 12, 2018 lift door update, everything is on one upright so I do not have to worry about one of the uprights getting out of line with the other, hope that makes sense. Hope it works. . refractory failure?? no just me not paying attention, I put a scrap of duraboard on the top to see if it changed the exhaust color and it did not but it did heat the sheet metal red hot and warp the daylights out of it. lesson learned and hopefully it won't fall out any time soon. I put a 1/2" layer of Kastolite on the sliding door, don't know what to say other than it stayed there and reflected heat quite well as far as I could see. Not exactly forge related but I mounted removable wheels on the stand and made provisions to bolt the forge in place. Will be putting removable handles on the back side, clamped some square tube on just to try and it worked quite well. Tomorrow I paint on the 100 HT can't wait to see how much difference that makes. Annealed some truck axle for hammers and swedges this morning and it took about 10 minutes to bring roughly 5# of steel to forging temp from dead cold. I was impressed. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted April 19, 2018 Author Share Posted April 19, 2018 I guess this finishes up this chapter. the doors work quite well and don't bind, I upgraded the regulator to a 2 stage and things are a lot smoother I don't think the B tank regulator was giving me the volume I needed. The cart / stand is working well and makes transport and loading pretty easy, it likes to ride in the truck on it's left side, did I mention that the forge is bolted to the stand?? The wheels are a bit wobbly, I drilled a 17/32 hole for the 1/2" axles to make them as easy as possible to insert and remove I guess that 33/64th may have been a better choice. the 100HT did make some difference but kind of hard to qualify how much. I am going to use this for a while and see how it holds up and performs , I Have cranked it up to 20 PSIG and it responds well so I think the burner is capable of more than I am using. I am thinking of doing another box for modular refractory panels, so panels could be replaced individually and be all pre fired and ready to work. And there is the possibility of putting two box's end to end with a gasket between for those that need the 700 in³ or the 20" length with two burners. Interesting possibilities. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted April 21, 2018 Author Share Posted April 21, 2018 And just one more thing, thanks to all you guys in this forum, I learned enough cool stuff to make this happen. And I appreciate it very much. Quote Link to comment Share on other sites More sharing options...
Frosty Posted April 21, 2018 Share Posted April 21, 2018 You do know we just make all that stuff don't you? Seriously, I'm glad it's working it makes me feel good. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted June 3, 2018 Author Share Posted June 3, 2018 A needed repair, entirely my fault that it broke out . Now to see if it will stay fixed. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted September 3, 2018 Author Share Posted September 3, 2018 A little update: The Dog kind of blew it on this one. I was using a 2"X3/4" T for the burner and Frosty specifically stated a 1"X3/4" T. I don't have any idea why I decided to be creative with this but I just made the change. Still in the tuning stages but everything is working fine so far. I am hoping for a bit more of a reducing flame from this configuration and initially it was a bit more difficult to light so we shall see. The good side of this is that 2" t's are rather expensive and not available at my local despot. Quote Link to comment Share on other sites More sharing options...
Howling dog forge Posted April 2, 2023 Author Share Posted April 2, 2023 Five years later and it still works. The pedestal is a bit clumsy and I managed to drop the forge from about tailgate height but it came through needing just minor repairs. In fact the repairs were to re repair the first patch and re do a bit of the other end. it did crack at the burner bur not seriously. So I suppose I can safely say the dog box travels well even at a high rate of speed in a vertical direction. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted April 2, 2023 Share Posted April 2, 2023 Five years later, ceramic fiber blanket would probably have needed replacement. Ceramic board is definitely worth the increased cost Quote Link to comment Share on other sites More sharing options...
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