clenceo Posted October 7, 2017 Share Posted October 7, 2017 Hello All!! Finished up my forge a few days ago. My idea was to create a simple forced air forge that can be broken down, easily serviceable and that can be easily duplicated if needed, and maybe manipulated for different types of materials I may be adding into it. Some things that I was able to do at my place of employment was TIG weld some stainless steel nozzles. Although I'm no expert in welding, I have been allowed full access to weld since apparently I have a steady hand. You will see my first attempts to TIG weld stainless steel below. I hope my photos are self explanatory, but if you do have questions....Please ask. I'll do my best to answer any questions. I also numbered the pictures in order....for some reason the file host does not organize them in order. I'm learning here, so please do not take offense if I can not offer a reasonable explanation. https://clenceo.imgbb.com/?list=images&sort=date_asc&page=1¶ms_hidden[userid]=kbD¶ms_hidden[from]=user Quote Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted October 7, 2017 Share Posted October 7, 2017 Lots of folks have been down that road, tho your vesian is nicer than most. Hard fire brick I has an r value of about 2 and wile exelent for throwing together quick forge for od shapes and testing burners, the fuel costs will eat you alive. Soft brick is a beter choice, tho most will crack in short order do to thermal cycling. looks like that's what you used for the top. Jerry has 4 burner reconfigurable he uses. Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 7, 2017 Share Posted October 7, 2017 Hard fire brick is R 2, Charles? I thought it was barely over R 1. Different brand or grade I guess. I know you can buy 2,600 f insulating fire brick but it's more than 2x the cost of standard soft brick. That's a nice looking forge Clenceo. I agree brick is easy to reconfigure but I found I rarely need to. I've only ever had all 4 burners lit on my variable configuration shop forge maybe twice and that was so several people could use it at once. I've never needed that large a forge and it's cost hundreds in soft brick. Hard brick takes forever to come to heat. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted October 7, 2017 Share Posted October 7, 2017 1 inch of lime stone to 1" of brick, and a brick is 2" thick Mike has been recommending a new soft (insulation brick) that stands up to heat cycling but they still recomend a zeconium kiln wash for efecency and to protect your investment from flux damage. Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 7, 2017 Share Posted October 7, 2017 Okay, there's a misunderstanding, R value is based on, one R value per one foot of limestone, inches. Materials aren't judged by what the total insulating value is, it's the equivalent per given thickness. Limestone is R 1 for whatever it's given thickness. Hard fire brick varies but runs something like R 1.04 for a given thickness. A fire brick is 2x the insulation of 1" of limestone but it's a different given thickness it remains R 1 and a bit. The R 20 insulation in your walls is only 3.5" thick but has the same value as 20 feet of limestone. R value also ignores the tremendous heat sink limestone represents, it is only concerned with it's ability to conduct heat. Don't quote me on the numbers I used above I didn't look them up I'm just grabbing them out of my dented memory for purposes of discussion. Make sense? Quote Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted October 7, 2017 Share Posted October 7, 2017 Ah. So R.2... all for want of a decimal point, lol My memory sucks. And I don't have your valid excuse! Quote Link to comment Share on other sites More sharing options...
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