The wide range of densities and thicknesses for ceramic insulation is what makes it effective in deploying optimum thermal characteristics in conveyor ovens. It comes in different grades that offer the same excellent chemical stability and strength before and after heating. They also provide great insulation and sound absorption qualities. In some cases, it’s even possible to use a ceramic blanket beyond its classification temperature. Tough and resilient blankets are produced through the good combination of long spun fibres and needing operation.
In terms of fabricating insulation for conveyor ovens, dust control measures are not strictly required in most circumstances. However, the production of debris during fabrication should be minimised. Dust should be collected using suction. At Eastman, the ovens and oven accessories we manufacture come in a variety of chemistries which have both low heat storage and superior resistance to thermal shock. You can select from among the four options below, depending on your specific application.
Soluble fibre: this type of ceramic blanket is made from bio-persistence fibers which can be used in working environments up to 1260℃. It is a safe option to work with in high heat conditions by acting as a low-hazard protective surface.
High purity fibre: being made from alumina-silica, this blanket provides a stable insulating material with low thermal conductivity and superior corrosion resistance. It has the same temperature grade of 1260 degrees Celsius.
Zirconia: this grade is even improved with the addition of zirconia fiber to alumina-silica mixture. It features low thermal conductivity, low shrinkage, and high tensile strength, making it perfect for ferrous metal industries and chemical processing conveyor ovens. It has a higher temperature grade of 1260 degrees Celsius.
Polycrystalline mullite: this one is a high-tech oven insulation material that’s extremely durable, highly resilient, and performs well even at very high temperatures of up to 1649 degrees Celsius. It’s ideal for use in most industrial processes and to form stack bonded modules used in kiln linings, furnaces, and heaters across industries.