0
A refractory element is an element that has a high melting point or heat resistance, making it suitable for use in high-temperature applications like furnaces or jet engines. These elements are often used as components in materials that need to withstand extreme heat without deforming or melting. Examples of refractory elements include tungsten, tantalum, and niobium.
What else can I help you with?
What is refractory scrap?
Refractory scrap refers to discarded or waste materials that have been used in high-temperature applications, such as furnaces, kilns, or reactors. These materials often consist of refractory bricks, castables, or coatings that have become worn out or damaged during their service life. Refractory scrap can be recycled or repurposed for use in the production of new refractory products.
How moisture content in refractory affect performance of refractory?
Moisture content in refractory materials can lead to thermal spalling and cracking when exposed to high temperatures. It can reduce the strength and lifespan of the refractory material by promoting thermal shock and weakening its structure. Additionally, moisture can chemically react with certain refractory materials, causing them to lose their properties and effectiveness in high-temperature applications.
What is a common refractory material?
A common refractory material is alumina, which is an oxide of aluminum. Alumina has high temperature resistance and is commonly used in industrial furnaces and kilns due to its ability to withstand extreme heat.
What is the bulk density of refractory cement?
The bulk density of refractory cement can vary depending on the specific formulation, but it typically ranges from 1.8 to 2.2 g/cm3.
What is permanent linear change in refractory material?
Shrinkage Refractory materials can undergo mineral formations or phase transformations when heated. These phase changes may result in either volume expansion or reduction. Upon cooling to room temperature, the material will possibly be larger or smaller than the original dimensions. This is evaluated by reheat tests, which are run at temperatures prescribed by ASTM for each class of refractory. This is reported as permanent linear and volume change.
What are refractory minerals ad their significance?
refractory minerals are those minerals that contain refractory materials or elements. few example will make it clear but let us know what is refractory material. simply a material that can resist high temperature or pressure is a refractory material. e.g magnesium, zircon, etc. ASTM- American Society Of Testing Material defines the range of the temperature to be 1000 F and above that a material can tolerate to be refractory. so those mineral from which we can extract or is composed of refractory element are called refractory minerals( please see the definition of mineral). The major significance of these mineral is that they can produce such element or material that can be used as catalyst, in blast furnace, and in high temp. zone. was the ans satisfactory. anirban chowdhury geology
What do you mean by refractory concrete?
refractory Concrete means refractory castable == ==
Why did Yilong Refractory change their name into Changxing Refractory?
Because of Changxing Refractory's largest investment, Yilong Refractory was renamed as Changxing Refractrory.
How do you use refractory in a sentence?
1) The virus was refractory to the medication. 2) The refractory class was unable to get anything done.
Where you can get refractory concrete?
Refractory Engineers Indianapolis Indiana 3172732000
What is mag-dolo refractory?
magnesium-dolomite based refractory
Will the refractory product quality and services also change as the name of Yilong Refractory changed into Changxing Refractory?
The only change of Yilong Refractory is its name which has changed into Changxing Refractory. Its product quality, pre-sale and after-sale services remain unchanged.
What is a proppant used in oilfield?
A proppant in an oilfield is a refractory element used in binding the leakages of oil wells in order to increase the productivity of an oil well.
What is the relationship between the relative refractory period and the absolute refractory period in terms of neuronal excitability?
The relative refractory period is the time when a neuron can respond to a stronger stimulus, while the absolute refractory period is when a neuron cannot respond at all. The relative refractory period follows the absolute refractory period and allows for increased neuronal excitability.
What is refractory insulation?
Refractory insulation is defined as insulation for extremely high temperatures. The threshold of temperature of insulation for refractory insulation is > 815 Celsius.
What is the difference between the refractory period and the absolute refractory period in terms of neuronal signaling?
The refractory period is the time after a neuron fires when it cannot fire again, while the absolute refractory period is the specific part of the refractory period when the neuron is completely unable to fire, regardless of the stimulus.
2 Define refractory period and differentiate between absolute and relative refractory periods?
refractory period is the interval between action potential , the absolute refractory period is the period in which second action potential can not be initiated but in relative refractory period the second action potential can be initiated by the more strong stimulus.
