Foundry burn on is a name given to a wide variety of surface defects that are produced at high heat during the metal sand casting process. Carbonaceous materials in the mold, such as high-anthracite coal dust can prevent such defects from forming.
Bentonite is a form of clay that has found numerous uses over its thousands of years of use - but perhaps most notably in foundries from the 1900’s onwards, alongside powdered coal.
Porcelain, whose origin can be traced back to China, can be described as a ceramic material formed by heating various materials together. These materials, including Kaolin which is heated in a kiln to high range temperatures between 1200 and 1400ºC.
Without tundishes, production of cast metal products would be inefficient and more costly. Through the use of refractory-lined tundishes, the process of metal casting is greatly enhanced.
Hematite finds uses beyond the blast furnace: as an essential component in some modern drilling fluids for oil and gas drilling, the exploration industry highly values hematite for its performance characteristics, high purity and low cost.