The properties of refractories are affected by many factors_Changxing Shengfa Refractories Co., Ltd.

The properties of refractories are affected by many factors

[ Publish: 2018-11-27 ]

Refractories are often subjected to high temperatures and a variety of physical and chemical processes in thermal equipment. Therefore, the basic requirements for refractories are:
(1) it has the function of resisting high temperature;
(2) resistance to a series of physical-chemical processes in the operating room.
In order to measure the performance of refractories, a series of properties of refractories have been developed: refractoriness, high temperature structural strength, high temperature volume fixation, thermal stability and slag resistance, etc. These performance indexes are often important bases for measuring refractories' quality and estimating their possible service conditions.
Some properties of refractories are often functions of mechanical properties and physical properties. Therefore, the mechanical properties and physical indexes of refractories can also be used as the basis for judging the properties of refractories to a certain extent. For example, the thermal stability of refractory products is related to tensile strength, linear expansion coefficient, elastic modulus, thermal conductivity, etc. The porosity, bulk density and other factors have great influence on slag erosion of refractory products. Therefore, in addition to the operational properties of refractories, the determination of certain mechanical properties and physical indicators of refractories is also of great significance.
In addition, refractory products must have the correct shape and accurate size in order to ensure the minimum crevice of brick laying.
The main factors influencing the properties of refractories are:
(1) chemical mineral composition;
(2) technological production conditions.
Therefore, in order to make high quality refractories, it is necessary to strictly control the quality of raw materials and select reasonable process production conditions. It is difficult to make good products without good raw materials; With good quality raw materials, if there is no good production methods and production conditions, it is also difficult to produce products with good property indicators.

Return　Close

News