drewpear Posted March 3, 2015 Report Share Posted March 3, 2015 howdy everyone, i appreciate the ability to ask questions regarding projects i'm involved in. thanks for sharing. i'm putting in a couple of windows in my kiln. with the way i plan on doing it i have to drill a 2 inch hole through the brick then cut the brick in half across the hole. then cut a channel on each brick for the window disc to set. i'm concerned about chipping. so i was wondering if it would help to soak the brick in water first. sure would keep the dust down. will it harm the brick at all? thank you Link to comment Share on other sites More sharing options...
neilestrick Posted March 3, 2015 Report Share Posted March 3, 2015 I'm not sure I understand the process you have described. The best way to do it is to drill the hole, then use another piece of brick to make the plug. Link to comment Share on other sites More sharing options...
Guest JBaymore Posted March 3, 2015 Report Share Posted March 3, 2015 When I am working insulating firebricks they are always worked wet. Brick and fiber dust is "bad news". Isn't going to do much for the chipping factor. Work slowly. best, ...................john Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted March 3, 2015 Report Share Posted March 3, 2015 Are you using the Aluminium Oxide glass? Link to comment Share on other sites More sharing options...
drewpear Posted March 3, 2015 Author Report Share Posted March 3, 2015 Are you using the Aluminium Oxide glass? aluminum oxide glass...transparent aluminum! cool. i remember hearing about it on star trek. seriously. i'm using fused silica. When I am working insulating firebricks they are always worked wet. Brick and fiber dust is "bad news". Isn't going to do much for the chipping factor. Work slowly. best, ...................john thanks john. solid advice. I'm not sure I understand the process you have described. The best way to do it is to drill the hole, then use another piece of brick to make the plug. the holes are for round glass windows. the kiln is used for glass and ceramics. thank you all for your help! Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted March 3, 2015 Report Share Posted March 3, 2015 i always wonder how they even begin to melt silica or alumina when surely the kiln would melt! Link to comment Share on other sites More sharing options...
Biglou13 Posted March 4, 2015 Report Share Posted March 4, 2015 When I am working insulating firebricks they are always worked wet. Brick and fiber dust is "bad news". Isn't going to do much for the chipping factor. Work slowly. best, ...................john i never thought of this we are building a kiln now! are hard bricks safer? i suppose a hose down isint going to hurt how am i going to convince teacher and class to let me hose down bricks.......... Link to comment Share on other sites More sharing options...
Mark C. Posted March 4, 2015 Report Share Posted March 4, 2015 Cutting hard bricks is also something you want to do wet or have a dust control vac system on. I cut them on a wet diamond saw and wear a mask. I have also a dedicated soft brick radial arm saw which is used outside only with vac and mask-I cut arch bricks with it. They fit into a jig. Working with bricks is always dusty so precautions need to be taken. Mark Link to comment Share on other sites More sharing options...
Guest JBaymore Posted March 4, 2015 Report Share Posted March 4, 2015 Hard bricks can be wet down also... but it only gets the surface dust. If you are cutting or grinding them.......... wet saw or serious ventilation and respiratory protection. If the teacher won't let you...... you might want to find another location to work. It likely says a lot about other H+S practices there. best, ......................john Link to comment Share on other sites More sharing options...
neilestrick Posted March 4, 2015 Report Share Posted March 4, 2015 My bad. Thought you meant a peep hole, not an actual window. Very cool! Link to comment Share on other sites More sharing options...
drewpear Posted March 4, 2015 Author Report Share Posted March 4, 2015 i think windows can be pretty helpful for certain things, especially glasswork. since i'm building a control system for the kiln and it will interface with my computer, i'm anxious to see what type of visual accuity i can obtain with cams. here are few pics of one process of making fused silica called electric-arc fusion https://drive.google.com/file/d/0B8AdxQDtxH1pdlJWVGFubWZNVzQ/view?usp=sharinghttps://drive.google.com/file/d/0B8AdxQDtxH1pcThIMTAzNl9oenc/view?usp=sharinghttps://drive.google.com/file/d/0B8AdxQDtxH1pWEVRMV9SX2FEalk/view?usp=sharinghttps://drive.google.com/file/d/0B8AdxQDtxH1pMGlJN2lkWGtXeEE/view?usp=sharing not sure what the furnace is made from. Link to comment Share on other sites More sharing options...
Mark C. Posted March 6, 2015 Report Share Posted March 6, 2015 Some salvage bricks I got from a lime kiln (pulp mill) are cone 32-and are high alumina Electric arc is also a steel mill process http://www.google.com/patents/EP0843020A1?cl=en Since glass melts at lower temps than say super high alumina refractory bricks- my guess on kiln makup is a cast material made by a ceramic engineer. John may know this answer? The only thing more awsome than electric arc is the nitrogen infuzzed oxygen free electric arc furnace use to make my advancer shelves or any nitrite bonded material like some soaps I have for car kiln. Looks like that glass is poured into a sand cast mold? in your links. Mark Link to comment Share on other sites More sharing options...
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