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Used for melting frit batches to create ingots that are easily separated from the container
Refractory Casting Slip
Total:142.22 Notes *This is used to make melt flow testers. It is very refractory, still highly porous even at cone 10. We are able to cast pieces of very thin walls and they do not warp in firing even at cone 6. Pictures L4404A without and with L3693E liner These frit ingots have melted to cone 04 and slow cooled. We used cast crucibles made from L4404A refractory slip. The front one has an alumina oxide liner of L3693E. Without the liner, the ingot in the back is inseparable from the body. But with the liner (front), it easily breaks away. The alumina has remained as a powder and can be easily cleaned off the ingot leaving almost no residue. Frit manufacturers crash cool frit batches by quenching them in water, this one was slow-cooled, we are hoping that will make the difference to enable it to pass a lead leaching test. XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Refractory Casting Slip" id="194791" key="ncW5hbTA" date="2024-11-19" codenum="L4404A"> <recipelines> <recipeline material="Pioneer Kaolin" amount="35.000" tolerance=""/> <recipeline material="KT #1-4 Ball Clay" amount="35.000" tolerance=""/> <recipeline material="Silica" amount="30.000" tolerance=""/> <recipeline material="Water" amount="41.580" tolerance=""/> <recipeline material="Darvan #7" amount="0.640" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2021-02-12, Modified: 2024-11-19 02:09:18 |
Alumina Lining for Crucibles
Total:208.00 Notes *We have not had good luck casting ware using pure alumina. However this project is to assess whether an alumina slurry could be applied, by pouring, as a fine layer inside a slip-cast refractory crucible. Pictures Cone 10R bars of Alumina Crucible bodies L4404A without and with L3693E liner These frit ingots have melted to cone 04 and slow cooled. We used cast crucibles made from L4404A refractory slip. The front one has an alumina oxide liner of L3693E. Without the liner, the ingot in the back is inseparable from the body. But with the liner (front), it easily breaks away. The alumina has remained as a powder and can be easily cleaned off the ingot leaving almost no residue. Frit manufacturers crash cool frit batches by quenching them in water, this one was slow-cooled, we are hoping that will make the difference to enable it to pass a lead leaching test. Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Alumina Lining for Crucibles" id="111990" key="J9wtu9aY" date="2024-03-03" codenum="L3693E"> <recipelines> <recipeline material="Calcined Alumina" amount="200.000" tolerance=""/> <recipeline material="VeeGum" amount="8.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2017-05-05, Modified: 2024-03-03 01:16:34 |