refractory


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refractory

1. Med not responding to treatment
2. (of a material) able to withstand high temperatures without fusion or decomposition
3. a material, such as fireclay or alumina, that is able to withstand high temperatures: used to line furnaces, kilns, etc.

refractory

[ri′frak·trē]
(materials)
A material of high melting point.
The property of resisting heat.
(medicine)
Not readily yielding to treatment.

Refractory

One of a number of ceramic materials for use in high-temperature structures or equipment. The term high temperatures is somewhat indefinite but usually means above about 1830°F (1000°C), or temperatures at which, because of melting or oxidation, the common metals cannot be used. In some special high-temperature applications, the so-called refractory metals such as tungsten, molybdenum, and tantalum are used. See Ceramics

The greatest use of refractories is in the steel industry, where they are used for construction of linings of equipment such as blast furnaces, hot stoves, and open-hearth furnaces. Other important uses of refractories are for cement kilns, glass tanks, nonferrous metallurgical furnaces, ceramic kilns, steam boilers, and paper plants. Special types of refractories are used in rockets, jets, and nuclear power plants. Many refractory materials, such as aluminum oxide and silicon carbide, are also very hard and are used as abrasives; some applications, for example, aircraft brake linings, make use of both characteristics.

Refractory materials are commonly grouped into (1) those containing mainly aluminosilicates; (2) those made predominantly of silica; (3) those made of magnesite, dolomite, or chrome ore, termed basic refractories (because of their chemical behavior); and (4) a miscellaneous category usually referred to as special refractories.

refractory

A material, usually nonmetallic, used to withstand high temperatures.
References in periodicals archive ?
As refractories are characterized with lightweight, high temperature sustainability, and robustness, these are the ideal materials for manufacturing precasted shapes, refractory bricks, binders, nozzles, and so on.
Segmentation of the refractory products market by form type
For almost a century, Plibrico has focused on the research and development of complete turnkey refractory solutions.
Refractory products--also called refractories or refractory materials--are ceramics that are characterized primarily by their ability to withstand temperatures well in excess of 400 degrees Celsius in such applications as furnaces and kilns.
17) One of the most notorious refractory girls in the South Dublin workhouse, Jane Kane, had been abandoned to the workhouse by her prostitute mother at age 14, but she repeatedly left the workhouse to visit her mother in the brothel.
Among refractory forms, demand for preformed shapes and certain monolithics will see the strongest gains going forward while from a materials perspective, both clay and nonclay materials will perform near the industry average.
Extensive clinical studies of ZEVALIN have confirmed high response rates and durable responses in patients with relapsed, refractory follicular or transformed B-cell NHL.
General Aluminum has also noted other benefits from the new refractory material.
In recent years, driven by the rapid development of new technology in high-temperature industry, China's refractory industry adheres to the scientific development concept, change concepts and focus on independent innovation so as to achieve outstanding achievements in many aspects, such as the upgrading of industrial structure, product structure adjustment, independent innovation, upgrading of craft and equipment, the industrial competitiveness all over the world and many other aspects.
TechNavio's analysts forecast the Refractory Material market in India to grow at a CAGR of 9.
Founded in 1935, Guy Nielson Company brings decades of refractory material and installation expertise to Plibrico's network of exclusive partners, and will be a valuable addition for customers in Idaho, Montana, Utah, and Wyoming.
consistently provides cupola melting iron foundries with the most advanced refractory technology in the industry.