The following questions are commonly asked about refractories:
What are refractories? Refractories are materials that resist heat. In other words, they must be chemically stable in high heat temperatures. Therefore, they are usually used as liners in places that experience high heat temperatures, such as furnaces, kilns, or reactors. Besides merely being able to resist heat, refractories also have to be able to resist physical wear and tear as well as chemical changes that occur when exposed to high temperatures. More heat-resistant than metals, refractories are designed to work in areas where the temperature reaches about 1000 degrees Fahrenheit.
What materials are used for refractories? Traditionally, most refractory materials were ceramic based and made from clay that had hardened. Brick, for example, was commonly used in early refractories and can still be seen as the smoke stacks for large industrial incinerators. Modern refractories still use bricks, but they are created from a special mixture that is better able to withstand heat than simple ceramic brick. Both natural and synthetic materials are mixed together, including aluminum, fire clays, silicon carbide, and many others. The end result is a refractory brick that is able to withstand incredibly high heat temperatures.
Where are refractories used? Refractories are used where high temperatures occur. They are used as simple fireplace bricks, but can also be found as the high-tech heat shields installed on the space shuttle to resist the heat of Earth’s atmosphere during re-entry. Industrial factories primarily use refractories to line their furnaces and reactors to help contain the enormous amounts of heat produced during metalworking or other industrial processes.
Refractories are materials that can keep their strength in high temperatures. Their heat resistance lets manufacturers form them into different shapes. Clay, chrome, and glass are a few of the materials that a refractory may work with. To find a company that works with refractory linings or demolition you can look online or in a local phone book. Find phone numbers for providers in your area and ask about what materials they work with and what items they sell. Each factory will specialize in a different area. If you're looking for a specific service you will want to call a manufacturer and see if it's something they offer. Some industrial refractory providers may only create ceramics while others will specialize in different areas. You will want to ensure that the final product is good and worth your money. Refractories will range in price depending on the manufacturer. If you need a specific refractory then shop around different industrial manufacturers and see where you get the best price. Demolition of refractories and refractory linings will be offered at different prices depending on where you go. Look for reviews on several companies to see who has the better reputation. Keep in mind how much money they're asking to help you decide who you want to buy from. Ask a company how long they have been in business and if they offer discounts to those that order a minimum amount. You may also want to take into consideration any shipping fees that may be included in the final price if you need your order to be delivered to you.